Aviation plug protection device

Abstract

The utility model relates to an aviation plug protection device which comprises a protection device body, the protection device body is hollow, one end of the protection device body is open, a necking opening is formed in the position, close to the opening, of the protection device body, the necking opening comprises a tightening part with the inner diameter gradually decreasing in the opening direction and a straight barrel part connected with the small inner diameter end of the tightening part, and the inner diameter of the straight barrel part is not changed. The aviation plug can be firmly sleeved with the aviation plug, so that the aviation plug is prevented from being blocked by sundries when an aircraft is maintained.

Description

Technical Field

[0001] The present application relates to the technical field of plug protection, and in particular to an aviation plug protection device. Background Art

[0002] Aircraft are equipped with various plugs that connect to signal cables. When not connected to a signal cable, the plugs are exposed to the air. During aircraft maintenance, debris and other impurities can fall into the plugs, causing them to become clogged. If a plug clog is not discovered and cleared promptly, it can render the aircraft inoperable during flight, making it difficult for pilots to focus on cleaning the plugs. Utility Model Content

[0003] In order to protect the aviation plug when the aircraft is under maintenance, the present application provides an aviation plug protection device.

[0004] The present application provides an aviation plug protection device that adopts the following technical solutions:

[0005] An aviation plug protective device includes a protective device body, which is hollow and open at one end. The protective device body is provided with a necking near the opening. The necking includes a tightening portion whose inner diameter gradually decreases toward the opening and a straight tube portion connecting the small inner diameter end of the tightening portion, and the inner diameter of the straight tube portion remains unchanged.

[0006] Preferably, the inner diameter of the straight cylindrical portion is equal to the minimum inner diameter of the tightening portion.

[0007] Preferably, the end edge of the straight tube portion away from the tightening portion is provided with a flange.

[0008] Preferably, the flange is circumferentially arranged at the end edge of the tightening portion.

[0009] Preferably, the flange is in the shape of a circular ring.

[0010] Preferably, the outer wall of the protective device is provided with a hanging ear, and the hanging ear includes a protrusion and a through hole passing through the protrusion.

[0011] Preferably, the hanging ear is located on the side of the end of the protective device body away from the opening.

[0012] Preferably, the tightening portion is in a truncated cone shape.

[0013] Preferably, the straight cylindrical portion is in a circular shape.

[0014] In summary, the present application includes at least one of the following beneficial technical effects: it can be firmly sleeved on the aviation plug to prevent debris from clogging the aviation plug during aircraft maintenance. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 This is a schematic structural diagram of the aviation plug protection device of the present application;

[0016] Figure 2 It is a cross-sectional view of the aviation plug protection device of the present application.

[0017] Explanation of the accompanying reference numerals: 1. Protective device body; 2. Narrowed opening; 21. Tightening portion; 22. Straight tube portion; 3. Flanged edge; 4. Ear; 41. Raised portion; 42. Through hole. DETAILED DESCRIPTION

[0018] The following is combined with Figure 1-2 This application is described in further detail.

[0019] The embodiment of the present application discloses an aviation plug protection device. Figure 1-2 The aviation plug protection device includes a protection device body 1, which is cylindrical with one end open. The aviation plug protection device is made of materials such as silicone and rubber.

[0020] A constriction 2 is integrally formed near the opening of the protective device body 1. The constriction 2 includes an integrally formed tightening portion 21 and a straight-tube portion 22. The tightening portion 21 is truncated cone-shaped, and its inner diameter gradually decreases from the direction away from the opening to the direction close to the opening. The straight-tube portion 22 is annular and connected to the smaller end of the inner diameter of the tightening portion 21. The inner diameter of the straight-tube portion 22 is equal to the minimum inner diameter of the tightening portion 21, thereby ensuring a smooth transition from the tightening portion 21 to the straight-tube portion 22. When the aviation plug protective device is sleeved on the aircraft plug, the outer diameter of the aircraft plug is slightly larger than the inner diameter of the straight-tube portion 22. Therefore, the straight-tube portion 22 is deformed when the outer wall of the aircraft plug is stretched. After deformation, the straight-tube portion 22 generates a restoring force to restore its original shape and hold the aircraft plug tightly, thereby firmly fitting the aviation plug protective device on the aircraft plug. The outer diameter of the aircraft plug is smaller than the inner diameter of the protective device body 1, so the aircraft plug is arranged at intervals within the protective device body 1. The tightening portion 21 serves as a transition between the protective device body 1 and the straight-tube portion 22. Compared to a direct, right-angled transition from the large diameter of the protective device body 1 to the smaller diameter of the straight-tube portion 22, the inclined transition of the tightening portion 21 makes the straight-tube portion 22 easier to deform, making it easier and more labor-saving to fit the straight-tube portion 22 onto the aviation plug. In some embodiments, the cross-sections of the protective device body 1, the straight-tube portion 22, and the tightening portion 21 can also be regular polygons, etc., which can be determined by the shape of the outer wall of the aviation plug or be identical to the cross-sectional shape of the aviation plug. In this application, the cross-sections of the protective device body 1, the straight-tube portion 22, and the tightening portion 21 are circular, depending on the aviation plug having a circular cross-section.

[0021] At the end edge of the straight tube portion 22 away from the tightening portion 21, a circular ring-shaped flange 3 is integrally formed in the circumferential direction. The function of the flange 3 is to facilitate manual pulling of the straight tube portion 22 so that the straight tube portion 22 can be sleeved on the aviation plug. The circular ring-shaped setting also provides a certain contraction force for the straight tube portion 22 at the position of the flange 3 when the straight tube portion 22 is sleeved on the aviation plug, so that the straight tube portion 22 is held tighter between the flange 3 and the aviation plug. In some embodiments, the flange 3 can also be at least two symmetrically arranged protrusions, which can also achieve the technical effect of facilitating manual operation. In this embodiment, the flange 3 is located at the end edge of the straight tube portion 22. In other embodiments, the flange 3 can also be located at other positions such as the middle of the straight tube portion 22.

[0022] The protective device body 1 also has an integrally formed hook 4 on its side. This hook 4 protrudes radially from the outer wall of the protective device body 1 and includes a raised portion 41 and a through-hole 42 extending through the raised portion 41. The hook 4 can be located anywhere on the outer wall of the protective device body 1. The through-hole 42 is used to pass a label string through, allowing the label to be hung from the hook 4. In this embodiment, the hook 4 is located on the outer wall of the protective device body 1, away from the opening.

[0023] The above are all preferred embodiments of the present application, and are not intended to limit the scope of protection of the present application. Therefore, any equivalent changes made based on the structure, shape, and principle of the present application should be included in the scope of protection of the present application.

Claims

1. An aviation plug protection device, characterized by: The invention comprises a protective device body (1), wherein the protective device body (1) is hollow and has an opening at one end. The protective device body (1) is provided with a constriction (2) near the opening. The constriction (2) comprises a tightening portion (21) whose inner diameter gradually decreases toward the opening direction and a straight tube portion (22) connected to the small inner diameter end of the tightening portion (21). The inner diameter of the straight tube portion (22) remains unchanged.

2. The aviation plug protection device according to claim 1, characterized in that: The inner diameter of the straight tube portion (22) is equal to the minimum inner diameter of the tightening portion (21).

3. The aviation plug protection device according to claim 1, characterized in that: The end edge of the straight tube portion (22) away from the tightening portion (21) is provided with a flange (3).

4. The aviation plug protection device according to claim 3, characterized in that: The flange (3) is circumferentially arranged at the end edge of the tightening portion (21).

5. The aviation plug protection device according to claim 4, characterized in that: The flange (3) is in the shape of a circular ring.

6. The aviation plug protection device according to claim 1, characterized in that: The outer wall of the protective device is provided with a hanging ear (4), and the hanging ear (4) comprises a protruding portion (41) and a through hole (42) penetrating the protruding portion (41).

7. The aviation plug protection device according to claim 6, characterized in that: The hanging ear (4) is located on the side of the end of the protective device body (1) away from the opening.

8. The aviation plug protection device according to claim 1, characterized in that: The tightening portion (21) is in a truncated cone shape.

9. The aviation plug protection device according to claim 1, characterized in that: The straight cylindrical portion (22) is in the shape of a circular ring.

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