Device for preventing vibration and swing of airplane towed object close to body

Abstract

The utility model discloses a device for preventing vibration and swing of a close towed object of an airplane. Comprising a conical sheath (1), the small opening end of the conical sheath (1) is connected with a through hole pipeline (3), and a cable (5) of a towed object (4) sequentially penetrates through the conical sheath (1) and the through hole pipeline (3); and the towed object (4) can be wrapped by the conical sheath (1). The device can prevent the towed object from swinging and oscillating when approaching the fuselage.

Description

Technical Field

[0001] The utility model belongs to the technical field of aircraft structure design and relates to a device for preventing an object towed close to an aircraft from vibrating and oscillating. Background Art

[0002] Towed objects are connected to the aircraft via cables or flexible pipes. During flight, as the towed object approaches the aircraft's fuselage, air turbulence can cause a certain degree of oscillation and swing, potentially damaging the fuselage and placing significant fatigue loads on the mooring cables. To prevent the towed object from continuously oscillating and exceeding the fatigue load limit of the mooring cables, the towed object can be fully retracted into the aircraft cabin. However, this approach is only suitable for low-altitude flights and is not suitable for repeated high-altitude deployments. Utility Model Content

[0003] The purpose of the utility model is to provide a device for preventing a towed object from vibrating when the towed object is close to the aircraft. The utility model can prevent the towed object from vibrating when the towed object is close to the aircraft.

[0004] Technical Solution: A device for preventing an aircraft's towed object from vibrating and oscillating close to the aircraft, comprising a conical sheath, the small end of which is connected to a through-hole pipe, through which the towed object's cable passes in sequence; the conical sheath can encase the towed object's contours.

[0005] In the aforementioned device for preventing an aircraft from dragging an object in close proximity to the aircraft from oscillating and swinging, a connecting flange is provided at the end of the through-hole pipe.

[0006] In the aforementioned device for preventing an aircraft from dragging an object in close proximity from oscillating and swinging, a flange is provided at the large end of the conical sheath.

[0007] In the aforementioned device for preventing an aircraft from dragging an object in close proximity from oscillating and swinging, the through-hole pipe is made of aluminum alloy.

[0008] In the aforementioned device for preventing an aircraft's close-in dragged object from oscillating and swinging, the conical sheath is made of aluminum alloy and is integrally formed with the through-hole pipe.

[0009] In the aforementioned device for preventing an aircraft's close-in dragged object from oscillating and swinging, the conical sheath is made of Teflon.

[0010] Beneficial effects

[0011] The utility model provides a device for preventing a towed object from swinging and vibrating when the aircraft is in a state of repeatedly performing towed object retrieval and release tasks at high altitude, which can prevent the towed object from hitting and impacting the aircraft body and significantly improve the service life of the mooring cable. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 It is a schematic diagram of the structure of the utility model;

[0013] Figure 2 This is a state diagram of the utility model.

[0014] In the figure, 1-conical sheath, 2-connecting flange, 3-through-hole pipe, 4-drag object, 5-cable, 6-flanged edge. DETAILED DESCRIPTION

[0015] The features and illustrative embodiments of various aspects of the present invention will be described in detail below. In the detailed description below, many specific details are set forth in order to provide a comprehensive understanding of the present invention. However, it will be apparent to those skilled in the art that the present invention can be implemented without some of these specific details. The following description of the embodiments is merely intended to provide a better understanding of the present invention by illustrating examples of the present invention. The present invention is in no way limited to any specific arrangement set forth below, but rather covers any improvements, replacements, and modifications of structures and devices without departing from the spirit of the present invention. In the accompanying drawings and the following description, well-known structures and techniques are not shown to avoid unnecessary ambiguity in the present invention.

[0016] Example 1. A device for preventing an object being dragged by an aircraft from vibrating and oscillating, comprising: Figure 1 and Figure 2 As shown, it includes a conical sheath 1, the small end of the conical sheath 1 is connected to the through-hole pipe 3, and the cable 5 of the towed object 4 passes through the conical sheath 1 and the through-hole pipe 3 in sequence; the outer contour of the towed object 4 can be wrapped by the conical sheath 1.

[0017] The end of the through-hole pipe 3 is provided with a connecting flange 2.

[0018] The large end of the aforementioned conical sheath 1 is provided with a flange 6 .

[0019] The aforementioned through-hole pipe 3 is made of aluminum alloy.

[0020] The aforementioned conical sheath 1 is made of aluminum alloy and is integrally formed with the through-hole pipe 3 .

[0021] Optionally, the aforementioned conical sheath 1 may also be made of Teflon.

[0022] The device is mounted on the tail of the aircraft via a connecting flange 2. A cable, connected through a through-hole conduit 3, connects one end to the towed object and the other end to the onboard retraction and deployment mechanism. The retraction and deployment mechanism inside the cabin retracts the towed object close to the aircraft's rear fuselage, maintaining a certain tension to hold it tightly against the conical sheath 1. The conical sheath's airflow shielding prevents the towed object from oscillating.

[0023] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the field can easily think of various equivalent modifications or replacements within the technical scope disclosed in the present invention, and these modifications or replacements should all be included in the protection scope of the present invention.

Claims

1. A device for preventing an object being dragged by an aircraft from vibrating and oscillating, characterized in that: The invention comprises a conical sheath (1), wherein the small end of the conical sheath (1) is connected to a through-hole pipe (3), and a cable (5) of a towed object (4) passes through the conical sheath (1) and the through-hole pipe (3) in sequence; and the outer contour of the towed object (4) can be wrapped by the conical sheath (1).

2. The device for preventing an object being dragged close to an aircraft from vibrating and oscillating according to claim 1, wherein: A connecting flange (2) is provided at the end of the through-hole pipe (3).

3. The device for preventing an object being dragged by an aircraft from vibrating and oscillating according to claim 1, wherein: The large end of the conical sheath (1) is provided with a flange (6).

4. The device for preventing an object being dragged close to an aircraft from vibrating and oscillating according to claim 1, wherein: The through-hole pipe (3) is made of aluminum alloy.

5. The device for preventing an object being dragged close to an aircraft from vibrating and oscillating according to claim 4, wherein: The conical sheath (1) is made of aluminum alloy and is integrally formed with the through-hole pipe (3).

6. The device for preventing an object being dragged close to an aircraft from vibrating and oscillating according to claim 1, wherein: The conical sheath (1) is made of Teflon.

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