Wing folding mechanism for double-rotor unmanned helicopter

Abstract

The utility model discloses a wing folding mechanism for a double-rotor unmanned helicopter, which relates to the technical field of unmanned helicopters, and comprises a first wing plate, a second wing plate, a third wing plate and a fourth wing plate, the end part of the second wing plate is rotationally connected with the end part of the first wing plate through a connecting hinge, and a locking mechanism is arranged between the first wing plate and the second wing plate; and the third wing plate is movably arranged at the end, away from the first wing plate, of the second wing plate, and a positioning mechanism is arranged between the second wing plate and the third wing plate. The folding storage between the first wing plate and the second wing plate can be realized by adopting the connecting hinge and the locking mechanism between the first wing plate and the second wing plate, and meanwhile, the telescopic third wing plate assembled on the end surface of the second wing plate is matched, and the position of the telescopic third wing plate is fixed by utilizing the positioning mechanism; the occupied volume of the wings can be reduced through folding and shrinking, and the wings are convenient to store or transport.

Description

Technical Field

[0001] The utility model relates to the technical field of unmanned helicopters, in particular to a wing folding mechanism for a double-rotor unmanned helicopter. Background Art

[0002] When carrying and transporting a traditional twin-rotor unmanned helicopter, the more slender the wings of the twin-rotor unmanned helicopter are, the more space they occupy, making it more inconvenient to store and transport the unmanned helicopter, and the installed wings are larger in size.

[0003] In the prior art, in order to solve the problem that the wings of a twin-rotor unmanned helicopter are too long to be stored or transported, a general approach is to design the wings of the twin-rotor unmanned helicopter into a retractable structure, so that the wings of the unmanned helicopter can be retracted to shorten the overall length when not in use to meet the needs of storage or transportation.

[0004] However, there are still limitations in reducing the length of the wings on today's twin-rotor unmanned helicopters during storage or transportation by telescoping. The wings on today's unmanned helicopters can generally only be a two-stage telescopic structure. The multi-stage telescopic structure not only cannot ensure firmness, but also causes the thickness at the end of the wing to be too thin and easy to break. The two-stage telescopic wing can only reduce a limited length and has low adaptability. It is still difficult to meet the needs of use in some environments with small storage space. For this reason, a wing folding mechanism for a twin-rotor unmanned helicopter is proposed. Utility Model Content

[0005] The utility model aims to provide a wing folding mechanism for a twin-rotor unmanned helicopter to solve the problems raised in the above-mentioned background technology.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solution: a wing folding mechanism for a twin-rotor unmanned helicopter, comprising:

[0007] A first wing panel, wherein an end of the first wing panel is fixedly connected with a connecting hinge;

[0008] A second wing panel, wherein an end of the second wing panel is rotatably connected to an end of the first wing panel via a connecting hinge, and a locking mechanism is provided between the first wing panel and the second wing panel, and the locking mechanism is used to lock and fix the first wing panel and the second wing panel in a butt-jointed position;

[0009] The third wing panel is movably arranged at one end of the second wing panel away from the first wing panel, and one end of the second wing panel is provided with a cavity for accommodating the extension and contraction of the third wing panel. A positioning mechanism is provided between the second and third wing panels, and the positioning mechanism is used to fix the position of the third wing panel on the second wing panel.

[0010] Preferably, the length of the second wing panel is less than or equal to the length of the first wing panel, the length of the third wing panel is less than the length of the second wing panel, and the first wing panel, the second wing panel and the third wing panel are all provided with a V-shaped surface on one side facing the rotation direction.

[0011] Preferably, the locking mechanism includes a receiving groove opened at one end of the first wing plate close to the second wing plate, a retractable positioning column is movably connected inside the positioning column, and a locking hole matching the positioning column is opened at one end of the second wing plate close to the first wing plate.

[0012] Preferably, a connecting slide groove connected to the storage groove is provided at the bottom end of the first wing panel, a toggle plate is movably provided in the connecting slide groove, the top end of the toggle plate passes through the connecting slide groove and is fixedly connected to the outer wall of the positioning column, a positioning hole is provided at the inner end of the connecting slide groove, a locking screw is threadedly inserted at the end of the toggle plate, and one end of the locking screw can pass through the top end of the toggle plate and be inserted into the positioning hole.

[0013] Preferably, the positioning mechanism includes a positioning rod rotatably connected to one end of the second wing panel close to the first wing panel, the outer wall of the positioning rod extends to the inner cavity of the second wing panel, one end of the third wing panel is provided with a telescopic groove matching the positioning rod, and both ends of the telescopic groove are provided with blocking grooves.

[0014] Preferably, the positioning rod includes a column rod, one end of which extends to the end surface of the second wing plate and is fixedly connected to a special-shaped turning handle, the end surface of the first wing plate is provided with a limiting groove matching the special-shaped turning handle, the other end of the column rod extends to the inner cavity of the telescopic groove, and the outer wall of the end of the column rod away from the special-shaped turning handle is fixedly connected to a blocking block, and the blocking block matches the blocking groove.

[0015] Technical effects and advantages of the utility model:

[0016] The utility model realizes rotatable folding by adopting a connecting hinge between the first wing panel and the second wing panel, and can realize folding and storage between the first wing panel and the second wing panel in cooperation with a locking mechanism, and at the same time cooperates with a retractable third wing panel assembled on the end surface of the second wing panel, and uses a positioning mechanism to fix the position of the third wing panel after retraction, so that the wing can be folded and contracted to reduce the occupied volume under the premise of ensuring that the wing length meets the use requirements, thereby facilitating the storage or transportation of the wing. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the overall structure of the utility model.

[0018] Figure 2It is a schematic diagram of a partial cross-sectional structure of a first wing panel of the utility model in a top view.

[0019] Figure 3 It is a schematic diagram of a partial cross-sectional structure of a second wing panel of the utility model in a top view.

[0020] Figure 4 It is a three-dimensional structural schematic diagram of the positioning rod of the utility model.

[0021] In the figure: 100, first wing panel; 101, storage slot; 102, positioning column; 103, connecting slide slot; 104, toggle plate; 105, locking screw; 106, positioning hole; 107, limiting slot; 200, second wing panel; 201, locking hole; 300, third wing panel; 301, telescopic slot; 302, blocking slot; 400, V-shaped surface; 500, connecting hinge; 600, positioning rod; 601, column rod; 602, blocking block; 603, special-shaped handle. DETAILED DESCRIPTION

[0022] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0023] The utility model provides Figures 1-4A wing folding mechanism for a dual-rotor unmanned helicopter as shown, comprising a first wing plate 100, a second wing plate 200 and a third wing plate 300. A connecting hinge 500 is fixedly connected to the end of the first wing plate 100. The end of the second wing plate 200 is rotatably connected to the end of the first wing plate 100 through the connecting hinge 500. A locking mechanism is provided between the first wing plate 100 and the second wing plate 200. The locking mechanism is used for locking and fixing the positions of the first wing plate 100 and the second wing plate 200 after docking. One end of the first wing plate 100 away from the connecting hinge 500 can be integrally welded or detachably bolt-connected to the wing rotating shaft of the unmanned helicopter. Among them, the second wing plate 200 can rotate and fold at the end of the first wing plate 100 through the connecting hinge 500, so that the first wing plate 100 and the second wing plate 200 can be stored by rotating and folding, reducing the overall length of the wing. At the same time, the locking mechanism can ensure that the second wing plate 200 remains firmly locked with the first wing plate 100 after unfolding, so as to ensure the firmness of the wing during use; The third wing plate 300 is movably arranged at one end of the second wing plate 200 facing away from the first wing plate 100. A cavity for accommodating the expansion and contraction of the third wing plate 300 is provided at one end of the second wing plate 200. A positioning mechanism is provided between the second wing plate 200 and the third wing plate 300. The positioning mechanism is used for fixing the position of the third wing plate 300 on the second wing plate 200. The third wing plate 300 can expand and contract at one end of the second wing plate 200, which can not only adjust the overall length of the wing to ensure the required length for wing use, but also shrink into the inside of the second wing plate 200 by contraction during storage, thus not occupying extra space. Cooperating with the positioning mechanism to lock and fix between the second wing plate 200 and the third wing plate 300, the wing occupies less space during storage, storage or transportation, can use more storage environments, and better meets the use requirements.

[0024] Further, the length of the second wing plate 200 is less than or equal to the length of the first wing plate 100. In this way, the second wing plate 200 can fit the first wing plate 100 after rotating and folding, avoiding a large angle between the second wing plate 200 and the first wing plate 100 during folding due to the excessive length of the second wing plate 200, thus affecting storage. The length of the third wing plate 300 is less than the length of the second wing plate 200, so that the third wing plate 300 can be completely retracted into the inner side of the second wing plate 200, thus not occupying extra space. V-shaped surfaces 400 are provided on one side of the first wing plate 100, the second wing plate 200 and the third wing plate 300 facing the rotating direction. In this way, one side of the entire wing facing the rotating direction is the V-shaped surface 400, which can reduce the influence of wind resistance.

[0025] In some embodiments, the locking mechanism includes a receiving groove 101 formed at one end of the first wing plate 100 close to the second wing plate 200. A retractable positioning post 102 is movably connected inside the positioning post 102. A locking hole 201 matching the positioning post 102 is formed at one end of the second wing plate 200 close to the first wing plate 100. Further, a connecting sliding groove 103 communicating with the receiving groove 101 is formed at the bottom end of the first wing plate 100. A toggle plate 104 is movably arranged in the connecting sliding groove 103. The top end of the toggle plate 104 passes through the connecting sliding groove 103 and is fixedly connected to the outer wall of the positioning post 102. A positioning hole 106 is formed at the inner end of the connecting sliding groove 103. A locking screw 105 is threadedly inserted at the end of the toggle plate 104. One end of the locking screw 105 can penetrate the top end of the toggle plate 104 and be inserted into the positioning hole 106. After the second wing plate 200 rotates and unfolds and fits with one end of the first wing plate 100, at this time, only need to manually push the toggle plate 104 to move, drive the positioning post 102 to extend out of the receiving groove 101 and insert into the locking hole 201. At this time, the locking screw 105 moves to the positioning hole 106 at the inner end of the connecting sliding groove 103 along with the toggle plate 104. Only need to screw the locking screw 105 into the positioning hole 106 to limit the position of the positioning post 102. In this way, the positioning post 102 can limit the rotation of the second wing plate 200, and keep the position stable after the first wing plate 100 and the second wing plate 200 are linearly spliced.

[0026] In addition, the positioning mechanism includes a positioning rod 600 rotatably connected to one end of the second wing plate 200 close to the first wing plate 100. The outer wall of the positioning rod 600 extends into the inner cavity of the second wing plate 200. One end of the third wing plate 300 is provided with a telescopic groove 301 matching the positioning rod 600, and blocking grooves 302 are provided at both ends of the telescopic groove 301. Among them, the positioning rod 600 includes a column rod 601. One end of the column rod 601 extends to the end face of the second wing plate 200 and is fixedly connected with a special-shaped rotating handle 603. The end face of the first wing plate 100 is provided with a limit slot 107 matching the special-shaped rotating handle 603. The other end of the column rod 601 extends into the inner cavity of the telescopic groove 301. A blocking block 602 is fixedly connected to the outer wall of the end of the column rod 601 away from the special-shaped rotating handle 603. The blocking block 602 matches the blocking groove 302. When the second wing plate 200 is rotated and unfolded, the special-shaped rotating handle 603 on the positioning rod 600 is embedded in the limit slot 107. In this way, the rotation and unfolding of the second wing plate 200 can be not affected, and at the same time, the positioning mechanism can be hidden and protected. The limit slot 107 matches the special-shaped rotating handle 603, which can limit the rotation of the special-shaped rotating handle 603, so as to ensure the stability of the positioning mechanism for positioning the third wing plate 300. When the third wing plate 300 extends out of the inner cavity of the second wing plate 200, the end of the positioning rod 600 is located at the end of the telescopic groove 301. At this time, the column rod 601 is rotated by the special-shaped rotating handle 603, so that the blocking block 602 at the end of the column rod 601 is rotated into the blocking groove 302, and the telescopic limit of the third wing plate 300 can be achieved, so that the third wing plate 300 maintains the firmness of the telescopic state. Then, by rotating and unfolding the second wing plate 200, the special-shaped rotating handle 603 is embedded in the limit slot 107 for rotation restriction and storage, and the stability of the extended state of the third wing plate 300 can be ensured. Similarly, when the third wing plate 300 is stored, the same principle is adopted for fixation, which is convenient to use, has high concealment and high anti-collision performance.

[0027] Finally, it should be noted that the above are only the preferred embodiments of the present invention and are not used to limit the present invention. Although the present invention has been described in detail with reference to the foregoing embodiments, for those skilled in the art, they can still modify the technical solutions recorded in the foregoing embodiments, or perform equivalent replacements on some of the technical features. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A wing folding mechanism for a dual-rotor unmanned helicopter, characterized in that include: A first wing panel (100), wherein an end portion of the first wing panel (100) is fixedly connected to a connecting hinge (500); a second wing panel (200), wherein an end of the second wing panel (200) is rotatably connected to an end of the first wing panel (100) via a connecting hinge (500), and a locking mechanism is provided between the first wing panel (100) and the second wing panel (200), and the locking mechanism is used to lock and fix the first wing panel (100) and the second wing panel (200) in a position after they are butted against each other; A third wing panel (300) is movably arranged at one end of the second wing panel (200) away from the first wing panel (100); one end of the second wing panel (200) is provided with a cavity capable of accommodating the extension and contraction of the third wing panel (300); a positioning mechanism is provided between the second wing panel (200) and the third wing panel (300); the positioning mechanism is used to fix the position of the third wing panel (300) on the second wing panel (200).

2. The wing folding mechanism for a dual-rotor unmanned helicopter according to claim 1, wherein The length of the second wing panel (200) is less than or equal to the length of the first wing panel (100), the length of the third wing panel (300) is less than the length of the second wing panel (200), and the first wing panel (100), the second wing panel (200) and the third wing panel (300) are all provided with a V-shaped surface (400) on one side facing the rotation direction.

3. The wing folding mechanism for a dual-rotor unmanned helicopter according to claim 2, characterized in that, The locking mechanism comprises a receiving groove (101) formed at one end of the first wing plate (100) close to the second wing plate (200), a retractable positioning column (102) being movably connected inside the positioning column (102), and a locking hole (201) matching the positioning column (102) is formed at one end of the second wing plate (200) close to the first wing plate (100).

4. The wing folding mechanism for a dual-rotor unmanned helicopter according to claim 3, characterized in that A connecting slot (103) connected to the receiving slot (101) is provided at the bottom end of the first wing plate (100); a toggle plate (104) is movably provided in the connecting slot (103); a top end of the toggle plate (104) passes through the connecting slot (103) and is fixedly connected to the outer wall of the positioning column (102); a positioning hole (106) is provided at the inner end of the connecting slot (103); a locking screw (105) is threadedly inserted at the end of the toggle plate (104); one end of the locking screw (105) can pass through the top end of the toggle plate (104) and be inserted into the positioning hole (106).

5. The wing folding mechanism for a dual-rotor unmanned helicopter according to claim 4, characterized in that, The positioning mechanism comprises a positioning rod (600) rotatably connected to one end of the second wing panel (200) close to the first wing panel (100), the outer wall of the positioning rod (600) extending to the inner cavity of the second wing panel (200), one end of the third wing panel (300) is provided with a telescopic groove (301) matching the positioning rod (600), and both ends of the telescopic groove (301) are provided with blocking grooves (302).

6. The wing folding mechanism for a dual-rotor unmanned helicopter according to claim 5, characterized in that, The positioning rod member (600) includes a column rod (601). One end of the column rod (601) extends to the end face of the second wing plate (200) and is fixedly connected with a special-shaped rotating handle (603). A limit slot (107) matching the special-shaped rotating handle (603) is formed in the end face of the first wing plate (100). The other end of the column rod (601) extends into the inner cavity of the telescopic slot (301). A blocking block (602) is fixedly connected to the outer wall of the end of the column rod (601) far from the special-shaped rotating handle (603), and the blocking block (602) matches the blocking slot (302).

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