CN107985551B

CN107985551B - Foldable wing

Info

Publication number: CN107985551B
Application number: CN201711299695.8A
Authority: CN
Inventors: 王志成; 李玉龙
Original assignee: Hangzhou Xiangyi Technology Co Ltd
Current assignee: Hangzhou Xiangyi Technology Co Ltd
Priority date: 2017-12-09
Filing date: 2017-12-09
Publication date: 2021-07-13
Anticipated expiration: 2037-12-09
Also published as: CN107985551A

Abstract

A foldable wing belongs to the technical field of aircrafts and comprises a fixed part wing and a foldable part wing; one end of the fixed part is connected with the body of the airplane, and the other end of the fixed part is connected with the folding part wing; the fixed part of the wing is similar to the conventional wing, and an aileron is arranged on the fixed part of the wing; the folding part wing comprises a telescopic rod, a small wing rib, a flexible skin and a folding and unfolding device; the folding part wings perform telescopic motion, the length of the wings is lengthened, the lengths of the folding part wings are different, the cross-sectional areas of the folding part wings are also different, so that the aspect ratio of an airplane using the wings is also different, and the lifting force obtained by the wings is different. The foldable wing is simple in structure, and the span length of the wing can be changed, so that an airplane using the wing can obtain different lifting forces.

Description

Foldable wing

Technical Field

The utility model provides a wing that can fold, belongs to aircraft technical field, especially relates to a wing.

Background

Wings are the main components of an aircraft that can be reconfigured in flight. Purposeful changes to the wing profile during flight can effectively increase the efficiency of the wing.

Disclosure of Invention

The invention aims to provide a wing capable of changing the wing area.

A foldable wing comprising a fixed part wing and a folded part wing; one end of the fixed part wing is connected with the body of the airplane, and the other end of the fixed part wing is connected with the folding part wing; the fixed part of the wing is similar to the conventional wing, and an aileron is arranged on the fixed part of the wing; the folding part of the wing can be stretched; the folding part wing comprises a telescopic rod, a small wing rib, a flexible skin and a folding and unfolding device; the upper end of each small wing rib is connected with the upper end, the lower end of each small wing rib is connected with the lower end, and the small wing ribs are wavy after being unfolded; small holes are arranged on the small wing ribs, and the small wing ribs are connected in series on the telescopic rod through the small holes; the head end of the telescopic rod is connected to the fixed part of the wing, and the tail end of the telescopic rod is connected to the last small wing rib of the folding wing rib; the flexible skin is divided into two parts, one part is wrapped on the folding part wing, and the other part is furled in the furling and releasing device; the folding and unfolding device is arranged on a connecting part between the fixed part wing and the folding part wing, and can roll up and unfold the flexible skin; when the telescopic rod is controlled to extend, the folding part of the wing can be unfolded under the driving of the telescopic rod, and meanwhile, the flexible skin in a furled state can be unfolded and wrapped by the folding device; the length of the wing is lengthened as a whole, the length of the folding part wing is different, and the cross-sectional area of the folding part wing is also different, so that the aspect ratio of an airplane using the wing is also different, and the lifting force obtained by the wing is different.

The number of telescopic rods can also be two or three or four.

The telescopic rod adopts an electric telescopic rod, a hydraulic telescopic rod or a manual telescopic rod.

The foldable wing is simple in structure, the wing span length can be changed, the shape of the cross section of the wing is changed, the aspect ratio of the wing is changed, and accordingly an airplane using the wing obtains different lifting forces.

Drawings

FIG. 1 is a perspective view of the wing structure; FIG. 2 is a schematic view of the structure after folding of a portion of the wing to remove the flexible skin; FIG. 3 is a schematic view of a folded portion wing configuration; FIG. 4 is a schematic illustration of a winglet rib configuration.

In the figure, 1-fixed part wing, 2-folding part wing, 3-aileron, 4-telescopic rod, 5-small wing rib, 6-flexible skin, 7-retraction device, 8-small hole.

Detailed Description

The invention is described in detail below with reference to the accompanying drawings: a foldable wing comprises a fixed part wing 1 and a folding part wing 2; one end of the fixed part wing 1 is connected with the body of the airplane, and the other end is connected with the folding part wing 2; the fixed part wing 1 is similar to a conventional wing, and an aileron 3 is arranged on the fixed part wing 1; the folding part wing 2 can be extended and contracted; the folding part wing 2 comprises a telescopic rod 4, a small wing rib 5, a flexible skin 6 and a folding and unfolding device 7; the small wing ribs 5 are provided with a plurality of small wing ribs, the upper ends of the small wing ribs 5 are connected with the upper ends, the lower ends of the small wing ribs 5 are connected with the lower ends, and the small wing ribs look wavy after being unfolded; small holes 8 are formed in the small wing ribs 5, and the small wing ribs 5 are connected in series to the telescopic rods 4 through the small holes 8; the head end of the telescopic rod 4 is connected to the fixed part wing 1, and the tail end of the telescopic rod is connected to the last small wing rib 5 of the folding wing rib; the telescopic rod 4 adopts an electric telescopic rod; the flexible skin 6 is divided into two parts, one part is wrapped on the folding part wing 2, and the other part is furled in the furling and releasing device 7; the folding and unfolding device 7 is arranged on the connecting part between the fixed part wing 1 and the folding part wing 2, and the folding and unfolding device 7 can roll up and unfold the flexible skin 6; when the telescopic rod 4 is controlled to extend, the folding part wing 2 can be unfolded under the driving of the telescopic rod 4, and meanwhile, the winding and unwinding device 7 can also unfold the flexible skin 6 in a winding state and wrap the unfolded folding part wing 2; the length of the wing is lengthened as a whole, the length of the folding part wing 2 is different, and the cross section area of the folding part wing 2 is also different, so that the aspect ratio of an airplane using the wing is also different, and the lifting force obtained by the wing is different.

Claims

1. A foldable wing, characterized in that: comprises a fixed part wing (1) and a folding part wing (2); one end of the fixed part wing (1) is connected with the body of the airplane, and the other end is connected with the folding part wing (2); the fixed part of the wing (1) is provided with an aileron (3); the folding part of the wing (2) can be extended and contracted; the folding part wing (2) comprises a telescopic rod (4), a winglet rib (5), a flexible skin (6) and a folding and unfolding device (7); the small wing ribs (5) are provided with a plurality of small wing ribs, the upper end and the upper end of each small wing rib (5) are connected, the lower end and the lower end of each small wing rib are connected to form a folding wing rib, and the folding wing rib looks wavy after being unfolded; small holes (8) are formed in the small wing ribs (5), and the small wing ribs (5) are connected in series on the telescopic rods (4) through the small holes (8); the head end of the telescopic rod (4) is connected to the fixed part wing (1), and the tail end of the telescopic rod is connected to the last small wing rib (5) of the folding wing rib; the flexible skin (6) is divided into two parts, one part is wrapped on the folding part wing (2), and the other part is furled in the retraction device (7); the folding and unfolding device (7) is arranged on the connecting part between the fixed part wing (1) and the folding part wing (2), and the folding and unfolding device (7) is used for rolling and unfolding the flexible skin (6).

2. A foldable wing according to claim 1, wherein: two or three or four telescopic rods (4) are used.

3. A foldable wing according to claim 1 or 2, wherein: the telescopic rod (4) adopts an electric telescopic rod, a hydraulic telescopic rod or a manual telescopic rod.