Quick-release foldable wing structure for unmanned aerial vehicle

Abstract

The utility model discloses a quick release type foldable wing structure for an unmanned aerial vehicle, which comprises an unmanned aerial vehicle square shell and a driven shaft rotationally mounted at the corner position in the unmanned aerial vehicle square shell, and a double-foot type quick connector is fixed at one end of the surface of the driven shaft. T-shaped wing arms are installed at the ends, away from the square shell of the unmanned aerial vehicle, of the double-foot type quick connectors, hollow boxes are fixed to the two sides of the top wall of the square shell of the unmanned aerial vehicle correspondingly, and lead screw bidirectional pushing structures are installed in the hollow boxes; and two moving ends of the lead screw bidirectional pushing structure are provided with two driven shafts used for driving the two driven shafts in the same X-axis direction to rotate. According to the wing folding mechanism, swing folding or unfolding of the wings is achieved, a user does not need to manually operate the wing folding mechanism, rapid response in the wing folding or unfolding process is achieved, the structural stability of the wings in the folding or unfolding process can be guaranteed, and the situation that the wings are unstable or out of control is avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of unmanned aerial vehicle wings, in particular to a quick-detachable foldable wing structure for unmanned aerial vehicles. Background Art

[0002] The foldable wing structure of a home drone refers to a design in which the wing part of the drone can be folded or retracted. Through a man-made hinge structure, the wing can be folded up when needed to reduce the volume. When unfolded, the locking mechanism can ensure that the wing remains stable during flight. The entire structure has been precisely designed and tested to ensure that the wing can maintain sufficient strength and stability when folded and unfolded. This design is suitable for outdoor sports, travel photography, emergency rescue and other scenarios, allowing users to carry and use drones more conveniently;

[0003] For example, the authorization announcement number CN217260638U discloses a quick-detachable foldable wing of an unmanned aerial vehicle and an unmanned aerial vehicle, comprising a middle wing skin, a central wing reinforcement rib, and also comprising a folding wing, a folding wing reinforcement rib, a first carbon fiber tube and a second carbon fiber tube symmetrically arranged along the longitudinal direction of the middle wing skin, the first carbon fiber tube and the second carbon fiber tube being detachably fixed to the central wing reinforcement rib () by segmented plug-in; the folding wing is connected to the first carbon fiber tube and the second carbon fiber tube through the web of the folding wing reinforcement rib, and the middle wing skin is connected to the reinforcement rib of the central wing and the fuselage skin using a small number of support plate nuts and bolts to ensure that it can be easily disassembled from the outside using a screwdriver. However, during use of this technical solution, the folding and stowing operation of the wing needs to be performed manually by the staff, which can be quickly operated for small-sized home machines, while the wings of larger-sized unmanned aerial vehicles are larger, and the folding and stowing process takes longer. If the operation is improper or not careful, it is also easy to cause the wing structure to fold, unfold unstably, or the locking mechanism is not fully effective. Utility Model Content

[0004] The purpose of the utility model is to provide a quick-detachable foldable wing structure for an unmanned aerial vehicle. A servo motor, a screw rod bidirectional pushing structure, and a gear rack deflection structure enable two double-leg quick connectors and a T-shaped wing arm on the same side to swing, fold or unfold, so as to solve the problems raised in the above-mentioned background technology.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a quick-detachable foldable wing structure for a drone, comprising a square housing of the drone and a driven shaft rotatably installed at the inner corner of the square housing of the drone, a double-leg quick connector is fixed to one end of the surface of the driven shaft, and a T-shaped wing arm is installed at the end of the double-leg quick connector away from the square housing of the drone, a hollow box is fixed to both sides of the top wall of the square housing of the drone, a screw rod bidirectional pushing structure is installed inside the hollow box, two movable ends of the screw rod bidirectional pushing structure are provided with a servo motor for driving two driven shafts in the same X-axis direction to rotate, and a servo motor for driving the screw rod bidirectional pushing structure to work is installed on the outer wall of one side of the hollow box.

[0006] Preferably, the double-leg quick connector includes a support plate fixed to one end of the driven shaft surface, and two square protrusions integrally formed on the outer wall of one side of the support plate, and clamping blocks are installed on the outer wall on the side away from each other of the two square protrusions, and a column groove is provided between the clamping block and the square protrusions.

[0007] Preferably, two symmetrical solid columns are installed at one end of the T-shaped wing arm close to the square protruding foot, and the solid columns and column grooves are plugged into each other. One side of the interior of the solid column is provided with an internal thread groove that completely penetrates the solid column, and the extension direction of the internal thread groove is perpendicular to the extension direction of the solid column. A positioning bolt for bolting the clamp block, the solid column and the square protruding foot is installed on the outer wall of one side of the clamp block.

[0008] Preferably, the screw bidirectional pushing structure includes a bidirectional screw rotatably installed inside the hollow box and a nut pair symmetrically installed at both ends of the surface of the bidirectional screw. The output end of the servo motor is fixedly connected to one end of the bidirectional screw through a coupling.

[0009] Preferably, the driven gear includes a driven gear fixed to one end of the driven shaft surface and a linear rack fixed to the bottom end of the nut pair, and the linear rack and the driven gear are meshed with each other.

[0010] Preferably, the double-leg quick connector and T-shaped wing arm are both made of aluminum alloy.

[0011] Compared with the prior art, the beneficial effects of the utility model are as follows: the quick-detachable foldable wing structure for the drone is provided with a servo motor and a double-foot quick connector and other structures that cooperate with each other. The servo motor can provide precise force and motion control to drive the swinging, folding or unfolding process of the wing, and the screw rod bidirectional pushing structure has the characteristics of simplicity, reliability and precise control, and has a self-locking function, which is suitable for controlling the locking of the folding state of larger-sized wings. Finally, the rotational motion of the servo motor can be converted into a linear yaw motion of the T-shaped wing arm, thereby realizing the swinging folding or unfolding of the wing. It does not require manual operation by the user, and realizes a rapid response to the wing folding or unfolding process. It can also ensure the structural stability of the wing during the folding or unfolding process, and avoid instability or loss of control. BRIEF DESCRIPTION OF THE DRAWINGS

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

[0013] Figure 2 It is a three-dimensional structural schematic diagram of the utility model;

[0014] Figure 3 This is a schematic diagram of the cross-sectional structure of the square casing of the UAV of the present utility model when viewed from above;

[0015] Figure 4 It is a schematic diagram of the three-dimensional structure of the double-leg quick connector of the utility model.

[0016] In the figure: 1. Square housing of drone; 2. Driven shaft; 3. Double-foot quick connector; 301. Support plate; 302. Square protruding foot; 303. Clamp; 304. Column groove; 305. Positioning bolt; 4. T-shaped wing arm; 5. Hollow box; 6. Servo motor; 7. Screw rod bidirectional pushing structure; 8. Gear rack deflection structure. DETAILED DESCRIPTION

[0017] 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. 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.

[0018] See also Figure 1-4 The utility model provides an embodiment: a quick-detachable foldable wing structure for a drone, comprising a square housing 1 of the drone and a driven shaft 2 rotatably mounted at an inner corner of the square housing 1 of the drone, a double-foot quick connector 3 is fixed to one end of the surface of the driven shaft 2, and a T-shaped wing arm 4 is installed at one end of the double-foot quick connector 3 away from the square housing 1 of the drone, and both the double-foot quick connector 3 and the T-shaped wing arm 4 are made of aluminum alloy.

[0019] A hollow box 5 is fixed on both sides of the top wall of the square casing 1 of the drone, and a screw bidirectional push structure 7 is installed inside the hollow box 5. The two moving ends of the screw bidirectional push structure 7 are provided with a gear rack deflection structure 8 for driving the two driven shafts 2 to rotate in the same X-axis direction. The gear rack deflection structure 8 can convert the rotational motion of the servo motor 6 into the linear deflection motion of the T-shaped wing arm 4, so as to realize the swing folding or unfolding of the wing. A servo motor 6 for driving the screw bidirectional push structure 7 is installed on the outer wall of one side of the hollow box 5. The servo motor 6 can provide precise force and motion control to drive the swing folding or unfolding process of the wing;

[0020] The double-leg quick connector 3 includes a support plate 301 fixed to one end of the surface of the driven shaft 2, and two square protruding feet 302 integrally formed on the outer wall of one side of the support plate 301, and a clamping block 303 is installed on the outer wall of the two square protruding feet 302 away from each other, and a column groove 304 is provided between the clamping block 303 and the square protruding feet 302;

[0021] Two symmetrical solid columns are installed at one end of the T-shaped wing arm 4 close to the square protruding foot 302. The solid columns and the column grooves 304 are plugged into each other. An internal thread groove that completely penetrates the solid column is provided on one side of the interior of the solid column. The extension direction of the internal thread groove is perpendicular to the extension direction of the solid column. A positioning bolt 305 for bolting the clamp block 303, the solid column and the square protruding foot 302 is installed on the outer wall of one side of the clamp block 303. The staff can insert the two solid columns at the rear end of the T-shaped wing arm 4 into the column groove 304 between the support plate 301 and the clamp block 303, and then take out the positioning bolt 305, so that the positioning bolt 305 is screwed into the clamp block 303, the solid column and the square protruding foot 302, so as to fix the T-shaped wing arm 4 and the double-foot quick connector 3 together;

[0022] The quick-release structural design of the double-foot quick connector 3 and the T-shaped wing arm 4 allows the connection between the wing arm and the quick connector to be quickly disassembled and installed, so that it can be carried out more easily;

[0023] The screw bidirectional pushing structure 7 includes a bidirectional screw rotatably mounted inside the hollow box 5 and a nut pair symmetrically mounted at both ends of the surface of the bidirectional screw. The output end of the servo motor 6 is fixedly connected to one end of the bidirectional screw through a coupling. The gear rack deflection structure 8 includes a driven gear fixed to one end of the surface of the driven shaft 2 and a linear rack fixed to the bottom end of the nut pair. The linear rack and the driven gear are meshed with each other.

[0024] The rotational power of the servo motor 6 is transmitted to the screw in the screw bidirectional pushing structure 7, and the screw drives the nut pair and the linear rack to move, and the linear rack drives the driven shaft 2 and the double-foot quick connector 3 to rotate through the driven gear, so that the two T-shaped wing arms 4 on the same side can swing toward each other to realize the folding or unfolding action of the wing, effectively reducing the complexity of user operation.

[0025] When the embodiment of the present application is in use, the staff first sends a working signal to the servo motor 6 through the control button on the drone remote control, and the servo motor 6 first drives the screw rod bidirectional sliding structure 7 to work, and the screw rod bidirectional sliding structure 7 drives the two gear rack deflection structures 8 in the same X-axis direction to move, so that the horizontal linear motion of the screw rod bidirectional sliding structure 7 is converted into the rotational swinging motion of the driven shaft 2 and the double-foot quick connector 3 through the gear rack deflection structure 8. At this time, the two T-shaped wing arms 4 in the same X-axis direction can be synchronously deflected in opposite directions until the two T-shaped wing arms 4 are in a completely folded, stowed or unfolded state. In this process, the folding action or unfolding action of the T-shaped wing arm 4 is The rotation direction of the servo motor 6 corresponds to that of the servo motor 6, and the servo motor 6 can provide precise force and motion control to drive the swinging, folding or unfolding process of the wing, while the screw bidirectional pushing structure 7 is simple, reliable, and has precise control characteristics, and has a self-locking function, which is suitable for controlling the locking of the folding state of larger-sized wings. Finally, the gear rack deflection structure 8 can convert the rotational motion of the servo motor 6 into the linear deflection motion of the T-shaped wing arm 4, thereby realizing the swinging folding or unfolding of the wing. It does not require manual operation by the user, and realizes rapid response of the wing folding or unfolding process, and can also ensure the structural stability of the wing during the folding or unfolding process to avoid instability or loss of control.

Claims

1. A quick-detachable foldable wing structure for an unmanned aerial vehicle, characterized in that: The invention comprises a square housing (1) of an unmanned aerial vehicle and a driven shaft (2) rotatably mounted at an inner corner of the square housing (1) of the unmanned aerial vehicle. A double-leg quick connector (3) is fixed to one end of the surface of the driven shaft (2), and a T-shaped wing arm (4) is mounted to one end of the double-leg quick connector (3) away from the square housing (1) of the unmanned aerial vehicle. A hollow box (5) is fixed to both sides of the top wall of the square housing (1) of the unmanned aerial vehicle. A screw rod bidirectional push structure (7) is mounted inside the hollow box (5). Two movable ends of the screw rod bidirectional push structure (7) are provided with gear rack deflection structures (8) for driving two driven shafts (2) to rotate in the same X-axis direction. A servo motor (6) for driving the screw rod bidirectional push structure (7) to work is mounted on the outer wall of one side of the hollow box (5).

2. The quick-detachable foldable wing structure for a drone according to claim 1, characterized in that: The double-leg quick connector (3) comprises a support plate (301) fixed to one end of the surface of the driven shaft (2), and two square protruding feet (302) integrally formed on an outer wall of one side of the support plate (301), a clamping block (303) being installed on the outer wall of a side away from each other of the two square protruding feet (302), and a column groove (304) being provided between the clamping block (303) and the square protruding feet (302).

3. The quick-detachable foldable wing structure for a drone according to claim 2, characterized in that: Two symmetrical solid columns are installed at one end of the T-shaped wing arm (4) close to the square protruding foot (302), and the solid columns and column grooves (304) are plugged into each other. An internal thread groove that completely penetrates the solid column is provided on one side of the interior of the solid column, and the extension direction of the internal thread groove is perpendicular to the extension direction of the solid column. A positioning bolt (305) for bolting the clamping block (303), the solid column, and the square protruding foot (302) is installed on the outer wall of one side of the clamping block (303).

4. The quick-detachable foldable wing structure for a drone according to claim 1, characterized in that: The screw rod bidirectional pushing structure (7) comprises a bidirectional screw rod rotatably mounted inside the hollow box (5) and a pair of nuts symmetrically mounted at both ends of the surface of the bidirectional screw rod. The output end of the servo motor (6) is fixedly connected to one end of the bidirectional screw rod via a coupling.

5. The quick-detachable foldable wing structure for a drone according to claim 4, characterized in that: The gear rack deflection structure (8) comprises a driven gear fixed to one end of the surface of the driven shaft (2) and a linear rack fixed to the bottom end of the nut pair, the linear rack and the driven gear meshing with each other.

6. The quick-detachable foldable wing structure for a drone according to claim 1, characterized in that: The double-leg quick connector (3) and the T-shaped wing arm (4) are both made of aluminum alloy components.

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