A telescoping folding wing

Abstract

This invention relates to a telescopic folding wing, which is connected to an aircraft via a main support. The wing is characterized by: a central sleeve assembly installed in the middle for load support and telescopic capability; an outer sleeve assembly fitted around the central sleeve assembly for generating lift and capable of synchronous telescopic movement with the central sleeve assembly; a folding mechanism connecting the central and outer sleeve assemblies to the main support; and a propeller mounted on the outer end of the wing body. The central and outer sleeve assemblies are joined to form a telescopic unit, which is connected to the folding mechanism via a variable-diameter deformable tube. A telescopic drive mechanism is installed inside the central sleeve assembly. The structure is compact, and the synchronous telescopic movement of the central and outer sleeve assemblies is achieved through the telescopic drive mechanism located within the central sleeve assembly. This overcomes the shortcomings of fixed wing structures, which cannot telescopically or fold, and whose area and volume cannot be changed, providing technical support for deformable aircraft.

Description

Technical Field

[0001] This invention belongs to the field of flight technology equipment, and specifically relates to a telescopic folding wing. Background Technology

[0002] Aircraft are widely used due to their various functions and applications. However, with current technology, the shape of aircraft wings is fixed, and the wing area and volume cannot be changed. This fails to meet the current societal demand for personalized and diverse aircraft. Therefore, developing and designing retractable and folding wings is of significant importance. Summary of the Invention

[0003] The purpose of this invention is to overcome the shortcomings of the prior art and provide a telescopic folding wing.

[0004] To achieve the above objectives, the technical solution adopted by the present invention is: a telescopic folding wing, which is connected to the aircraft via a main support, characterized in that: it includes a central sleeve assembly installed in the middle for supporting the load and capable of telescopic movement; an outer sleeve assembly fitted around the outer periphery of the central sleeve assembly for generating lift and capable of telescopic movement synchronously with the central sleeve assembly; a folding mechanism for connecting the central sleeve assembly and the outer sleeve assembly together to the main support; and a propeller installed on the outer end of the wing body.

[0005] The central sleeve assembly and the outer sleeve assembly are sleeved together to form a telescopic whole, which is connected to the folding mechanism through a variable diameter deformable tube; a telescopic drive mechanism is installed inside the central sleeve assembly.

[0006] The central sleeve assembly structure is: starting from the folding mechanism, it is composed of multiple square tube sections with successively decreasing cross-sectional areas, with the square tube section with the largest cross-sectional area located near the folding mechanism.

[0007] The outer sleeve assembly structure is as follows: starting from the folding mechanism, multiple flat tubes with progressively increasing cross-sectional areas are connected to form a wing shape, with the flat tube with the smallest cross-sectional area located near the folding mechanism.

[0008] The central sleeve assembly has 4 square tube sections, and the outer sleeve assembly has 4 flat tube sections.

[0009] Figure 2 In the directions shown, the two ends of the square section tube are referred to as the left end and the right end, respectively; the two ends of the flat section tube are referred to as the left end and the right end, respectively.

[0010] The right end of the No. 1 flat section tube is equipped with a No. 0 blocking plate, and a circular hole is opened in the center of the No. 0 blocking plate. The outer shaft tube passes through the circular hole and rotates in cooperation. The inner wall of the outer shaft tube is fitted with an inner shaft tube that rotates in cooperation.

[0011] A square hole is opened in the center of the first blocking plate at the left end of the first flat section tube. The first square section tube is inserted through the square hole. The left end of the first square section tube is fixedly connected to the square hole, and the right end is connected to the inner shaft tube. The outer end of the outer shaft tube is fixedly connected to the variable diameter deformable tube for connecting the folding mechanism. The left end of the first flat section tube is sleeved and inserted into the second flat section tube and slidably connected to it.

[0012] A square hole is opened in the center of the No. 2 blocking plate at the left end of the No. 2 flat section tube. The No. 2 square section tube is inserted through the square hole. The left end of the No. 2 square section tube is fixedly connected to the square hole, and the right end is inserted into the No. 1 square section tube. The left end of the No. 2 flat section tube is sleeved and inserted into the No. 3 flat section tube and slidably connected to it.

[0013] A square hole is opened in the center of the No. 3 blocking plate at the left end of the No. 3 flat section tube. The No. 3 square section tube is inserted through the square hole. The left end of the No. 3 square section tube is fixedly connected to the square hole, and the right end is inserted into the No. 2 square section tube. The left end of the No. 3 flat section tube is sleeved and inserted into the No. 4 flat section tube and slidably connected to it.

[0014] The fourth square section tube is fixed at the center of the fourth blocking plate at the left end of the fourth flat section tube, and the right end of the fourth square section tube is inserted into the third square section tube.

[0015] The sleeve structure of adjacent square tubes: a middle sealing plate is set at one end of the square tube with a larger cross-sectional area, and a square hole is opened in the middle of the middle sealing plate. The adjacent square tube with a smaller cross-sectional area is slidably connected with the square hole.

[0016] The sleeve structure of adjacent flat tubes: a side sealing plate is set at one end of the flat tube with a larger cross-sectional area, and a hole matching the shape of the wing is opened in the middle of the side sealing plate. The adjacent square flat tube with a smaller cross-sectional area is slidably connected with the hole.

[0017] The inner shaft tube extends out of the outer shaft tube, and the end of the extended inner shaft tube is connected to a matching worm gear ring. The worm gear ring is connected to a worm gear servo, which is fixed to the inner wall of the variable diameter deformable tube and meshes with the worm gear ring to link the inner shaft tube and the outer shaft tube to rotate in coordination. One end of the variable diameter deformable tube is a small circular end, and the other end is a large square end. The outer end of the outer shaft tube is connected to the small end, and the folding mechanism is connected to the large end.

[0018] The telescopic drive mechanism is as follows: a large circular hole is opened at the center of the right end face of the No. 3 square tube, the cylinder body of the first hydraulic cylinder passes through the large circular hole and is fixedly connected to the right end face of the No. 2 square tube, a small circular hole is opened at the center of the right end face of the No. 2 square tube, the piston rod of the first hydraulic cylinder extends out of the small circular hole and is fixedly connected to the connecting rod fixed inside the inner shaft tube; a first pulley is fixed at the tail of the first hydraulic cylinder, one end of the first rope is fixed to the connecting rod, and the other end passes through the right end faces of the No. 2 square tube and the No. 3 square tube in sequence, passes around the first pulley and is fixed inside the right end of the No. 3 square tube;

[0019] The right end of the third square tube is fixed with a second pulley, and the left end is fixed with a third pulley. One end of the second rope is fixed to the connecting rod on the first hydraulic cylinder, and the other end passes around the second pulley and is connected to the right end of the fourth square tube. One end of the third rope is fixed to the right end of the fourth square tube, and the other end passes around the third pulley, passes through the right end of the third square tube, and is fixed to the right end of the second square tube.

[0020] The fourth pulley is fixed to the right side of the outer side of the second square tube. One end of the fourth rope is fixed to the right side of the outer side of the third square tube, and the other end passes through the second square tube, goes around the fourth pulley, and is fixed to the left side of the inner side of the first square tube.

[0021] The right end of the fourth square tube has a through hole for the free movement of the first hydraulic cylinder and the first pulley fixed on it.

[0022] The folding mechanism consists of a support plate, a second hydraulic cylinder, and a third hydraulic cylinder. There are two support plates, which are vertically parallel and spaced at a certain distance. The side of the two support plates away from the variable diameter deformable tube is hinged to the main support through a connecting shaft, and the lower corner of the other side is connected to the variable diameter deformable tube through a universal joint. A stabilizing lock is installed on the upper corner of the other side, and the variable diameter deformable tube is locked to the support plate through the stabilizing lock. One end of the second hydraulic cylinder is hinged to the main support, and the other end is hinged to the variable diameter deformable tube. One end of the third hydraulic cylinder is hinged to the main support, and the other end is hinged to one end of one of the support plates.

[0023] The beneficial effects of this invention are: a compact structural design, incorporating a central sleeve assembly for load support and retraction, and an outer sleeve assembly fitted around the central sleeve assembly to generate lift. A telescopic drive mechanism located within the central sleeve assembly enables synchronous telescopic movement of the central and outer sleeve assemblies. This overcomes the shortcomings of fixed wing structures, which cannot telescopicate or fold, and whose area and volume cannot be changed, providing technical support for deformable aircraft. Attached Figure Description

[0024] Figure 1 This is a longitudinal cross-sectional view of the present invention;

[0025] Figure 2 This is a schematic diagram showing the connection between the outer wing sleeve assembly and the central sleeve assembly of the present invention;

[0026] Figure 3 This is a top view of the folding mechanism of the present invention;

[0027] In the diagram: 1-Inner shaft tube, 2-Outer shaft tube, 3-Variable diameter deformable tube, 4-Worm gear servo motor, 5-Universal joint, 6-Stabilizing lock, 7-Propeller, 8-Telescopic drive mechanism, 80-First hydraulic cylinder, 81-First pulley, 82-Second pulley, 83-Third pulley, 84-Fourth pulley, 85-First rope, 86-Second rope, 87-Third rope, 88-Fourth rope; 9-Folding mechanism, 91-Support plate, 92-Second hydraulic cylinder, 93-Third hydraulic cylinder, 94-Connecting shaft; 10-Connecting rod, 11-Worm gear ring, 12-Main support;

[0028] A - Outer sleeve assembly, An - Flat section tube, A1 - No. 1 flat section tube, A2 - No. 2 flat section tube, A3 - No. 3 flat section tube, A4 - No. 4 flat section tube;

[0029] B - Central sleeve assembly, Bn - Square section tube, B1 - No. 1 square section tube, B2 - No. 2 square section tube, B3 - No. 3 square section tube, B4 - No. 4 square section tube, B41 - Through hole;

[0030] D0-Blocking plate No. 0, D1-Blocking plate No. 1, D2-Blocking plate No. 2, D3-Blocking plate No. 3, D4-Blocking plate No. 4; E-Side sealing plate, F-Center sealing plate. Detailed Implementation

[0031] See Figure 1-3 A telescopic folding wing, which is connected to an aircraft via a main support 12, is characterized by comprising: a central sleeve assembly B installed in the middle for supporting the load and capable of telescopic movement; an outer sleeve assembly A fitted around the outer periphery of the central sleeve assembly B for generating lift and capable of telescopic movement synchronously with the central sleeve assembly B; a folding mechanism 9 for connecting the central sleeve assembly B and the outer sleeve assembly A together to the main support 12; and a propeller 7 disposed on the outer end of the wing body.

[0032] The central sleeve group B and the outer sleeve group A are sleeved together to form a telescopic whole, which is connected to the folding mechanism 9 through the variable diameter deformable tube 3; the central sleeve group B is equipped with a telescopic drive mechanism 8.

[0033] The central sleeve group B structure is: starting from the folding mechanism 9, it is composed of multiple square tubes Bn with successively decreasing cross-sectional areas, with the square tube with the largest cross-sectional area located close to the folding mechanism 9.

[0034] The outer sleeve group A structure is as follows: starting from the folding mechanism 9, multiple flat tubes An with sequentially increasing cross-sectional areas are connected to form a wing shape, with the flat tube with the smallest cross-sectional area located near the folding mechanism 9.

[0035] In the central sleeve group B, there are 4 square tubes Bn, and in the outer sleeve group A, there are 4 flat tubes An.

[0036] Figure 2 In the directions shown, the two ends of the square section tube Bn are referred to as the left end and the right end, respectively; the two ends of the flat section tube An are referred to as the left end and the right end, respectively.

[0037] The right end of the first flat section tube A1 is provided with a 0-type blocking plate D0. A circular hole is opened in the center of the 0-type blocking plate D0. The outer shaft tube 2 passes through the circular hole and rotates in cooperation. The inner wall of the outer shaft tube 2 is fitted with an inner shaft tube 1 that rotates in cooperation.

[0038] A square hole is opened in the center of the first blocking plate D1 at the left end of the first flat section tube A1. The first square section tube B1 is inserted through the square hole. The left end of the first square section tube B1 is fixedly connected to the square hole, and the right end is connected to the inner shaft tube 1. The outer end of the outer shaft tube 2 is fixedly connected to the variable diameter deformable tube 3 of the folding mechanism 9. The left end of the first flat section tube A1 is sleeved and inserted into the second flat section tube A2 and slidably connected to it.

[0039] A square hole is opened in the center of the second blocking plate D2 at the left end of the second flat section tube A2. The second square section tube B2 is inserted through the square hole. The left end of the second square section tube B2 is fixedly connected to the square hole, and the right end is inserted into the first square section tube B1. The left end of the second flat section tube A2 is sleeved and inserted into the third flat section tube A3 and slidably connected to it.

[0040] A square hole is opened in the center of the third blocking plate D3 at the left end of the third flat section tube A3. The third square section tube B3 is inserted through the square hole. The left end of the third square section tube B3 is fixedly connected to the square hole, and the right end is inserted into the second square section tube B2. The left end of the third flat section tube A3 is sleeved and inserted into the fourth flat section tube A4 and slidably connected to it.

[0041] The fourth flat section tube A4 is fixed at the center of the fourth blocking plate D4 at the left end, and the fourth square section tube B4 is inserted into the third square section tube B3 at the right end.

[0042] The sleeve structure of adjacent square tubes Bn: A middle sealing plate F is set at one end of the square tube Bn with a larger cross-sectional area. A square hole is opened in the middle of the middle sealing plate F. The adjacent square tubes Bn with smaller cross-sectional areas are slidably connected with the square hole.

[0043] The sleeve structure of adjacent flat tube An: a side sealing plate E is provided at one end of the flat tube An with a larger cross-sectional area. A hole matching the shape of the wing is opened in the middle of the side sealing plate E. The adjacent square flat tube An with a smaller cross-sectional area is slidably connected with the hole.

[0044] The inner shaft tube 1 extends out of the outer shaft tube 2, and the end of the extended inner shaft tube 1 is connected to a matching worm gear ring 11. The worm gear ring 11 is connected to the worm gear servo 4. The worm gear servo 4 is fixed to the inner wall of the variable diameter deformable tube 3 and meshes with the worm gear ring 11 to drive the inner shaft tube 1 and the outer shaft tube 2 to rotate in coordination. One end of the variable diameter deformable tube 3 is a small circular end, and the other end is a large square end. The outer end of the outer shaft tube 2 is connected to the small end, and the folding mechanism 9 is connected to the large end.

[0045] The telescopic drive mechanism 8 is specifically as follows: a large circular hole is opened at the center of the right end face of the No. 3 square tube B3, the cylinder body of the first hydraulic cylinder 80 passes through the large circular hole and is fixedly connected to the right end face of the No. 2 square tube B2, a small circular hole is opened at the center of the right end face of the No. 2 square tube B2, the piston rod of the first hydraulic cylinder 80 extends out from the small circular hole and is fixedly connected to the connecting rod 10 fixed in the inner shaft tube 1; the tail of the first hydraulic cylinder 80 is fixed with the first pulley 81, one end of the first rope 85 is fixed to the connecting rod 10, and the other end passes through the right end faces of the No. 2 square tube B2 and the No. 3 square tube B3 in sequence, passes around the first pulley 81 and is fixed to the right end inside the No. 3 square tube B3;

[0046] The right end of the inner side of the No. 3 square tube B3 is fixed with a second pulley 82 and the left end is fixed with a third pulley 83. One end of the second rope 86 is fixed to the connecting rod on the first hydraulic cylinder 80, and the other end passes around the second pulley 82 and is connected to the right end of the No. 4 square tube B4. One end of the third rope 87 is fixed to the right end of the No. 4 square tube B4, and the other end passes around the third pulley 83, passes through the right end of the No. 3 square tube B3 and is fixed to the right end of the inner side of the No. 2 square tube B2.

[0047] The fourth pulley 84 is fixed to the outer right end of the second square tube B2. One end of the fourth rope 88 is fixed to the outer right end of the third square tube B3, and the other end passes through the second square tube B2, goes around the fourth pulley 84 and is fixed to the inner left end of the first square tube B1.

[0048] The right end of the fourth square tube B4 has a through hole B41 for the free movement of the first hydraulic cylinder 80 and the first pulley 81 fixed on it.

[0049] The folding mechanism 9 consists of a support plate 91, a second hydraulic cylinder 92, and a third hydraulic cylinder 93. There are two support plates 91, which are vertically parallel and spaced at a certain distance. The side of the two support plates 91 away from the variable diameter deformable tube 3 is hinged to the main support 12 through a connecting shaft 94. The lower corner of the other side is connected to the variable diameter deformable tube 3 through a universal joint 5. A stabilizing lock 6 is installed on the upper corner of the other side. The variable diameter deformable tube 3 is locked to the support plate 91 through the stabilizing lock 6. One end of the second hydraulic cylinder 92 is hinged to the main support 12, and the other end is hinged to the variable diameter deformable tube 3. One end of the third hydraulic cylinder 93 is hinged to the main support 12, and the other end is hinged to one end of one of the support plates 91.

[0050] Work process:

[0051] When the wings are retracted, the telescopic wings are in a retracted and upright state, and the folding mechanism 9 completes the deflection and places the telescopic folding wings together on one side of the main support 12. At this time, the volume of the telescopic folding wings is the smallest and the shape is the most compact.

[0052] When the telescopic folding wing unfolds, the third hydraulic cylinder 93 operates first, pulling the support plate 91 to rotate around the connecting shaft 94 to the outside of the main support 12. Then, the second hydraulic cylinder 92 operates, pulling the variable diameter deformable tube 3 and the telescopic wing assembly together to swing and lift around the universal joint 5. At this time, the stabilizing lock 6 is locked, and the wing is in a horizontal state. Then, the first hydraulic cylinder 80 operates, pushing the second square tube B2 and the second flat tube A2 to move outward and unfold. The first pulley 81 moves outward and pulls the third square tube B3 and the connected third flat tube A3 to move outward and unfold through the first rope 85. At the same time as the third square tube B3 moves outward and unfolds, the third pulley 83 connected to it moves outward and pulls the fourth square tube B4 and the fourth flat tube A4 to move outward and unfold together through the third rope 87. At this time, the fourth pulley 84 and the second pulley 82 move outward along with the second square tube B2 and the fourth square tube B4.

[0053] The fourth pulley 84 and the second pulley 82 function during the retractable wing retraction. The retractable wing retraction process is as follows: The first hydraulic cylinder 80 operates to retract, driving the second square tube B2 to retract towards the first square tube B1. Simultaneously, the fourth pulley 84 mounted on the second square tube B2 pulls the third square tube B3 to retract via the fourth rope 88. Simultaneously, the third square tube B3 retracts and moves, pulling the fourth square tube B4 to retract via the second pulley 82 and the second rope 86. At the same time, each flat tube retracts along with its corresponding square tube, completing the retraction wing retraction. Subsequently, the second hydraulic cylinder 92 operates, pushing the variable diameter deformable tube 3 and the retractable wing assembly to swing and hang down around the universal joint 5. Then, the third hydraulic cylinder 93 operates, pushing the support plate 91 to rotate around the connecting shaft 94 into the main support 12, simultaneously placing the retractable wing inside the main support 12.

[0054] When the telescopic folding wing needs to change its pitch angle, the worm gear servo 4 and the worm gear ring 11 work, driving the inner shaft tube 1 and the folding wing assembly connected to the inner shaft tube 1 to twist around the axis, thereby changing the pitch angle of the telescopic folding wing.

Claims

1. A telescopic folding wing, the wing being connected to an aircraft via a main support (12), characterized in that: It includes a central sleeve assembly (B) installed in the middle for supporting the load and capable of telescopic movement; an outer sleeve assembly (A) fitted around the outer periphery of the central sleeve assembly (B) for generating lift and capable of telescopic movement synchronously with the central sleeve assembly (B); a folding mechanism (9) for connecting the central sleeve assembly (B) and the outer sleeve assembly (A) together with the main support (12); and a propeller (7) set on the outer end of the wing body. The central sleeve assembly (B) and the outer sleeve assembly (A) are sleeved together to form a telescopic whole, which is connected to the folding mechanism (9) through a variable diameter deformable tube (3); a telescopic drive mechanism (8) is installed inside the central sleeve assembly (B). The structure of the central sleeve group (B) is as follows: starting from the folding mechanism (9), it is composed of multiple square tubes (Bn) with successively decreasing cross-sectional areas, with the largest square tube (B1) located near the folding mechanism (9); there are 4 square tubes (Bn) in the central sleeve group (B). The outer sleeve assembly (A) is structured as follows: starting from the folding mechanism (9), it is formed by multiple flat tubes (An) with sequentially increasing cross-sectional areas, forming a wing shape. The first flat tube (A1) with the smallest cross-sectional area is located near the folding mechanism (9). The right end of the No. 1 flat section tube (A1) is provided with a No. 0 blocking plate (D0), and a circular hole is opened in the center of the No. 0 blocking plate (D0). The outer shaft tube (2) passes through the circular hole and rotates in cooperation. The inner wall of the outer shaft tube (2) is fitted with an inner shaft tube (1) that rotates in cooperation. The folding mechanism (9) consists of a support plate (91), a second hydraulic cylinder (92), and a third hydraulic cylinder (93). There are two support plates (91), which are vertically parallel and spaced at a certain distance. The side of the two support plates (91) away from the variable diameter deformable tube (3) is hinged to the main support (12) through a connecting shaft (94). The lower corner of the other side is connected to the variable diameter deformable tube (3) through a universal joint (5). A stabilizing lock (6) is installed on the upper corner of the other side. The variable diameter deformable tube (3) is locked to the support plate (91) through the stabilizing lock (6). One end of the second hydraulic cylinder (92) is hinged to the main support (12), and the other end is hinged to the variable diameter deformable tube (3). One end of the third hydraulic cylinder (93) is hinged to the main support (12), and the other end is hinged to one end of one of the support plates (91). The telescopic drive mechanism (8) is as follows: a large circular hole is opened at the center of the right end face of the No. 3 square tube (B3), the cylinder body of the first hydraulic cylinder (80) passes through the large circular hole and is fixedly connected to the right end face of the No. 2 square tube (B2), a small circular hole is opened at the center of the right end face of the No. 2 square tube (B2), the piston rod of the first hydraulic cylinder (80) extends out from the small circular hole and is fixedly connected to the connecting rod (10) fixed in the inner shaft tube (1); the tail of the first hydraulic cylinder (80) is fixed with the first pulley (81), one end of the first rope (85) is fixed on the connecting rod (10), and the other end passes through the right end face of the No. 2 square tube (B2) and the No. 3 square tube (B3) in sequence, passes around the first pulley (81) and is fixed inside the right end of the No. 3 square tube (B3); The right end of the third square tube (B3) is fixed with a second pulley (82) and the left end is fixed with a third pulley (83). One end of the second rope (86) is fixed to the connecting rod on the first hydraulic cylinder (80), and the other end passes around the second pulley (82) and is connected to the right end of the fourth square tube (B4). One end of the third rope (87) is fixed to the right end of the fourth square tube (B4), and the other end passes around the third pulley (83), passes through the right end of the third square tube (B3), and is fixed to the right end of the second square tube (B2). The fourth pulley (84) is fixed to the right side of the second square tube (B2). One end of the fourth rope (88) is fixed to the right side of the third square tube (B3), and the other end passes through the second square tube (B2), goes around the fourth pulley (84), and is fixed to the left side of the first square tube (B1). The right end of the No. 4 square tube (B4) has a through hole (B41) for the free movement of the first hydraulic cylinder (80) and the first pulley (81) fixed on it.

2. A telescopic folding wing as described in claim 1, characterized in that: In the outer sleeve group (A), there are 4 flat section tubes (An); a square hole is opened in the center of the first end plate (D1) at the left end of the first flat section tube (A1), and the first square section tube (B1) is inserted through the square hole. The left end of the first square section tube (B1) is fixedly connected to the square hole, and the right end is connected to the inner shaft tube (1). The outer end of the outer shaft tube (2) is fixedly connected to the variable diameter deformable tube (3) used to connect the folding mechanism (9); the left end of the first flat section tube (A1) is sleeved and inserted into the second flat section tube (A2) and slidably connected to it; A square hole is opened in the center of the second blocking plate (D2) at the left end of the second flat section tube (A2). The second square section tube (B2) is inserted through the square hole. The left end of the second square section tube (B2) is fixedly connected to the square hole, and the right end is inserted into the first square section tube (B1). The left end of the second flat section tube (A2) is sleeved and inserted into the third flat section tube (A3) and slidably connected to it. A square hole is opened in the center of the third blocking plate (D3) at the left end of the third flat section tube (A3). The third square section tube (B3) is inserted through the square hole. The left end of the third square section tube (B3) is fixedly connected to the square hole, and the right end is inserted into the second square section tube (B2). The left end of the third flat section tube (A3) is sleeved and inserted into the fourth flat section tube (A4) and slidably connected to it. The fourth flat section tube (A4) has its center fixed to the fourth square section tube (B4), and the right end of the fourth square section tube (B4) is inserted into the third square section tube (B3).

3. A telescopic folding wing as described in claim 2, characterized in that: The sleeve structure of adjacent square tubes (Bn): A middle sealing plate (F) is set at one end of the square tube (Bn) with a larger cross-sectional area. A square hole is opened in the middle of the middle sealing plate (F). The adjacent square tubes (Bn) with smaller cross-sectional areas are slidably connected with the square hole. The sleeve structure of adjacent flat tubes (An): A side sealing plate (E) is provided at one end of the flat tube (An) with a larger cross-sectional area. A hole matching the shape of the wing is opened in the middle of the side sealing plate (E). The adjacent square flat tube (An) with a smaller cross-sectional area is slidably connected with the hole.

4. A telescopic folding wing as described in claim 2, characterized in that: The inner shaft tube (1) extends out of the outer shaft tube (2), and the end of the extended inner shaft tube (1) is connected to the matching worm gear ring (11). The worm gear ring (11) is connected to the worm gear servo (4). The worm gear servo (4) is fixed on the inner wall of the variable diameter deformable tube (3) and meshes with the worm gear ring (11) to link the inner shaft tube (1) and the outer shaft tube (2) to rotate in coordination. One end of the variable diameter deformable tube (3) is a small circular end, and the other end is a large square end. The outer end of the outer shaft tube (2) is connected to the small end, and the folding mechanism (9) is connected to the large end.

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