Novel folding rudder

Abstract

The utility model discloses a novel folding rudder, relates to the technical field of aircraft structures, and can solve the problems that in the prior art, due to a rotating shaft and the like, an abnormal protruding structure appears on the surface of the folding rudder, and the wind resistance coefficient is high. The novel folding rudder provided by the embodiment of the utility model comprises a wing root, a wing tip and a rotating shaft structure, the rotating shaft structure is transversely arranged in the wing root; the wingtip is connected to the wing root through a rotating shaft structure, and the wingtip can rotate around the central axis of the rotating shaft structure to be in a folded state and an unfolded state; the planes, close to each other and parallel to the rotating shaft, of the wing root and the wing tip are inclined planes; the locking assembly is transversely arranged in the wing root and is used for locking the state of the wing tip.

Description

Technical Field

[0001] This utility model relates to the field of aircraft structure technology, specifically to a novel folding rudder. Background Technology

[0002] With the continuous advancement of basic industrial levels and modern technology, rudder systems are developing towards miniaturization, automation, and intelligence. Currently, the internal space utilization rate of aircraft such as drones is extremely high. In order to obtain higher control and maneuverability, larger aerodynamic rudders are often required. Therefore, folding rudder technology has become an effective solution to this problem.

[0003] The folding rudders of existing aircraft are mainly folded through a pivot. However, the presence of the pivot results in protrusions or irregular shapes in the shape of the folding rudders, which increases the drag coefficient of the folding rudders, leading to high flight energy consumption and affecting stability at high speeds. Improvements are urgently needed.

[0004] Based on the above background, this application is hereby submitted. Summary of the Invention

[0005] The purpose of this application is to provide a new type of folding rudder that solves the problem in the prior art where abnormal protrusions on the surface of the folding rudder, caused by factors such as the pivot shaft, result in a high drag coefficient.

[0006] To solve the above-mentioned technical problems, the present invention adopts the following solution:

[0007] This application provides a novel folding rudder, including a wing root, a wingtip, and a pivot structure;

[0008] The pivot structure is laterally located inside the wing root; the wingtip is connected to the wing root through the pivot structure, and the wingtip can rotate around the central axis of the pivot structure to be in a folded state and an unfolded state;

[0009] The planes that are adjacent to the wing root and wingtip and are parallel to the axis of rotation are all inclined planes;

[0010] It also includes a locking assembly located laterally within the wing root for locking the wingtip position.

[0011] Optionally, the top of the wing root is provided with two parallel notches, and the area between the two notches is the mounting part;

[0012] The wingtip bottom is provided with two connecting parts that are adapted to the two notches;

[0013] The rotating shaft structure is arranged laterally through the mounting part and the two connecting parts;

[0014] The locking component is located inside the mounting section;

[0015] The bottom surface of the wingtip and the top surface of the wing root are both positive slopes, while the bottom surface of the connecting part and the bottom surface of the notch are both negative slopes with the opposite inclination direction to the positive slopes.

[0016] Optionally, the rotating shaft structure includes a torsion bar spring segment and rotating shaft segments located at both ends of the torsion bar spring segment;

[0017] The mounting part is provided with a first transverse through hole, and the torsion bar spring section is located in the first through hole and can rotate freely in the first through hole;

[0018] The rotating shaft section is provided and fixedly connected to the connecting part laterally. One end of the rotating shaft section is located in the first through hole and is rotatably connected to it, while the other end is inserted into the wing root and is rotatably connected to it.

[0019] Optionally, the locking components are provided in two sets, and the two sets of locking components are located above and below the rotating shaft structure, respectively.

[0020] Optionally, the two sets of locking components have the same structure and are symmetrically arranged on both sides of the rotating shaft structure with the rotating shaft structure as the axis of symmetry.

[0021] Optionally, the rotating shaft structure is located at the middle position between the mounting part and the connecting part.

[0022] Optionally, the locking assembly includes a compression spring and locking pins disposed at both ends of the compression spring;

[0023] The connecting part is provided with a locking groove on the side near the mounting part;

[0024] With the wingtip in the deployed position, the locking pin is inserted into the locking groove;

[0025] With the wingtip in the folded position, the end of the locking pin presses against the side of the connector near the mounting part.

[0026] Optionally, the locking assembly further includes a detachable locking clamp fixed to the end of the locking pin;

[0027] The locking groove includes a clamp part that matches the shape of the locking clamp and an end head that matches the end head of the locking pin, and the clamp part and the end head are connected.

[0028] The mounting part has a receiving groove on the end face near the locking groove for accommodating the locking clamp, and the shape of the receiving groove is adapted to the locking clamp.

[0029] Optionally, the locking pin is further provided with an unlocking hole for the locking pin to be pushed out of the locking groove.

[0030] Optionally, the mounting section is provided with a coaxial and connected spring hole section and a pin hole section, with the spring hole section located between the two pin hole sections;

[0031] The top pressure spring is located in the spring hole section, and the locking pin is located in the pin hole section;

[0032] The locking pin is also provided with a limiting ring protrusion located in the spring hole section, and the pressure spring presses against the end face of the limiting ring protrusion.

[0033] Beneficial effects of the utility model:

[0034] 1. In this application, the planes adjacent to the wing root and wingtip and parallel to the pivot axis are both inclined planes, and the pivot axis structure and locking components are both located inside the wing root. This ensures that when the wingtip is in the deployed state, the wingtip and wing root fit tightly together without any abnormal protruding structures, which can solve the problem of high drag coefficient of folding rudders in the prior art.

[0035] 2. The pivot structure of this application includes a torsion bar spring section and a pivot section, so that after the wingtip is unloaded, the wingtip can automatically rotate from the folded state to the deployed state under the action of the torsion bar spring. This application also provides a locking component, which can automatically lock the deployed state after the wingtip rotates to the deployed state, thereby realizing the self-deployment and self-locking functions of the wingtip in the deployed state. Attached Figure Description

[0036] Figure 1 This is a cross-sectional structural diagram of an embodiment of this application.

[0037] Figure 2 for Figure 1 A magnified schematic diagram of the structure at point A in the middle.

[0038] Figure 3 This is a schematic diagram of the rear view structure of this application.

[0039] Figure 4 This is a schematic diagram of the left-side structure in the unfolded state according to an embodiment of this application.

[0040] Figure 5 This is a schematic diagram of the left-side structure of the folding platform in an embodiment of this application.

[0041] Explanation of reference numerals in the attached drawings: 1-wing root, 11-notch, 12-mounting part, 121-first through hole, 122-spring hole section, 123-pin hole section, 124-accommodating groove, 2-wing tip, 21-connecting part, 211-locking groove, 3-rotating shaft structure, 31-torsion bar spring section, 32-rotating shaft section, 4-locking assembly, 41-top pressure spring, 42-locking pin, 421-unlocking hole, 422-limiting ring protrusion, 43-locking clamp. Detailed Implementation

[0042] The present invention will be further described in detail below with reference to the embodiments and accompanying drawings, but the implementation of the present invention is not limited thereto.

[0043] In the description of this utility model, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "longitudinal", "lateral", "horizontal", "inner", "outer", "front", "rear", "top", "bottom", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship commonly used when the utility model product is in use. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0044] In the description of this utility model, it should also be noted that, unless otherwise explicitly specified and limited, the terms "set up," "have," "install," "connect," and "connect" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0045] The present invention will now be described in detail with reference to the accompanying drawings and embodiments.

[0046] like Figures 1 to 5 As shown, this embodiment provides a novel folding rudder, including a wing root 1, a wingtip 2, and a pivot structure 3;

[0047] The pivot structure 3 is laterally disposed inside the wing root 1; the wingtip 2 is connected to the wing root 1 through the pivot structure 3, and the wingtip 2 can rotate around the central axis of the pivot structure 3 to a folded state and an unfolded state.

[0048] The planes that are adjacent to the wing root 1 and the wing tip 2 and are parallel to the axis of rotation are both inclined planes;

[0049] It also includes a locking component 4 that is laterally disposed within the wing root 1 and used to lock the wingtip 2.

[0050] This embodiment sets up a wing root 1, a wingtip 2, and a pivot structure 3. The planes of the wing root 1 and the wingtip 2 that are adjacent to each other and parallel to the pivot are both inclined planes. At the same time, the pivot structure 3 and the locking component 4 are both located inside the wing root 1. This ensures that when the wingtip 2 is in the deployed state, the wingtip 2 and the wing root 1 are tightly fitted together without any abnormal protrusions. This can solve the problem of high drag coefficient of folding rudders in the prior art.

[0051] In this embodiment, the top of the wing root 1 is provided with two parallel notches 11, and the mounting part 12 is located between the two notches 11;

[0052] The bottom of the wingtip 2 is provided with two connecting parts 21 that are adapted to the two notches 11;

[0053] The rotating shaft structure 3 is arranged to extend laterally through the mounting part 12 and the two connecting parts 21;

[0054] The locking component 4 is disposed within the mounting portion 12;

[0055] The bottom surface of the wingtip 2 and the top surface of the wing root 1 are both positive slopes, while the bottom surface of the connecting part 21 and the bottom surface of the notch 11 are both negative slopes with the opposite inclination direction to the positive slopes. The positive slope of the bottom surface of the wingtip 2 and the negative slope of the bottom surface of the connecting part 21 are as follows: Figure 5 As shown.

[0056] In this embodiment, by providing two connecting parts 21 at the bottom of the wingtip 2, providing two parallel notches 11 at the top of the wing root 1, and placing the pivot structure 3 in the mounting part 12 and the two connecting parts 21, and placing the locking component 4 in the mounting part 12, the wingtip 2 and the wing root 1 are tightly fitted with small gaps after the wingtip 2 and the wing root 1 are in the deployed state, making the outer surface of the entire folding rudder smoother and reducing wind resistance.

[0057] In this embodiment, the rotating shaft structure 3 includes a torsion bar spring section 31 and rotating shaft sections 32 located at both ends of the torsion bar spring section 31;

[0058] The mounting part 12 is provided with a first transverse through hole 121, and the torsion bar spring section 31 is provided in the first through hole 121 and can rotate freely in the first through hole 121.

[0059] The pivot section 32 is provided and fixedly connected to the connecting part 21 laterally. One end of the pivot section 32 is provided in the first through hole 121 and is rotatably connected to it, and the other end is inserted into the wing root 1 and is rotatably connected to it.

[0060] The pivot structure 3 in this embodiment includes a torsion bar spring section 31 and a pivot section 32, so that after the wingtip 2 is unloaded, the wingtip 2 can automatically rotate from the folded state to the deployed state under the action of the torsion bar spring. In addition, this embodiment is provided with a locking component 4, which can automatically lock the deployed state after the wingtip 2 rotates to the deployed state, so as to realize the self-deployment and self-locking function of the wingtip 2 in the deployed state.

[0061] In this embodiment, the locking component 4 is provided in two sets, and the two sets of locking components 4 are located above and below the rotating shaft structure 3 respectively, thereby improving the stability of the locking function of the locking component 4.

[0062] In this embodiment, the two sets of locking components 4 have the same structure and are symmetrically arranged on both sides of the rotating shaft structure 3 with the rotating shaft structure 3 as the axis of symmetry, so that the locking components 4 are more stable under force after locking the wingtip 2 in the deployed state.

[0063] In this embodiment, the rotating shaft structure 3 is located at the middle position between the mounting part 12 and the connecting part 21.

[0064] In this embodiment, the locking component 4 includes a top pressure spring 41 and locking pins 42 disposed at both ends of the top pressure spring 41;

[0065] The connecting part 21 is provided with a locking groove 211 on the side near the mounting part 12;

[0066] When the wingtip 2 is in the deployed state, the locking pin 42 is inserted into the locking groove 211;

[0067] When the wingtip 2 is in the folded state, the end of the locking pin 42 presses against the side of the connecting part 21 near the mounting part 12, so that after the wingtip 2 rotates around the central axis of the rotating shaft structure 3 into the unfolded state, the locking pin 42 is pushed into the locking groove 211 under the action of the pressing spring 41.

[0068] In this embodiment, the locking component 4 further includes a detachable locking clamp 43 fixed to the end of the locking pin 42;

[0069] The locking groove 211 includes a clamp part that matches the shape of the locking clamp 43 and an end head that matches the end head of the locking pin 42, and the clamp part and the end head are connected.

[0070] The mounting part 12 is provided with a receiving groove 124 for accommodating the locking clamp 43 on the end face near the locking groove 211. The shape of the receiving groove 124 is adapted to the locking clamp 43.

[0071] In this embodiment, the locking pin 42 is also provided with an unlocking hole 421 for the locking pin 42 to be pushed out of the locking groove 211, which facilitates the wingtip 2 to be unlocked from the unfolded state and rotated back to the folded state to load the item. Unlocking can be easily done with a two-jaw caliper or a custom-made four-jaw caliper, making the operation convenient.

[0072] In this embodiment, the mounting part 12 is provided with a coaxial and connected spring hole section 122 and a pin hole section 123, with the spring hole section 122 located between the two pin hole sections 123.

[0073] The top pressure spring 41 is located in the spring hole section 122, and the locking pin 42 is located in the pin hole section 123;

[0074] The locking pin 42 is also provided with a limiting ring protrusion 422 located in the spring hole section 122, and the pressing spring 41 presses against the end face of the limiting ring protrusion 422.

[0075] The limiting ring protrusion 422 facilitates the installation of the pressure spring 41 and limits the outward extension distance of the locking pin 42.

[0076] In this embodiment, a locking component 4 includes a top compression spring 41 and two locking pins 42, which are symmetrically arranged on both sides of the top compression spring 41.

[0077] It is understood that the above embodiments are merely exemplary implementations used to illustrate the principles of this utility model, and the utility model is not limited thereto. For those skilled in the art, various modifications and improvements can be made without departing from the spirit and essence of this utility model, and these modifications and improvements are also considered to be within the protection scope of this utility model.

Claims

1. A novel folding rudder, characterized in that, It includes the wing root (1), wingtip (2) and pivot structure (3); The pivot structure (3) is laterally located inside the wing root (1); the wingtip (2) is connected to the wing root (1) through the pivot structure (3), and the wingtip (2) can rotate around the central axis of the pivot structure (3) to be in a folded state and an unfolded state; The planes that are adjacent to the wing root (1) and the wing tip (2) and are parallel to the axis of rotation are both inclined planes; It also includes a locking component (4) that is laterally disposed within the wing root (1) and used to lock the wingtip (2) state.

2. The novel folding rudder according to claim 1, characterized in that, The top of the wing root (1) is provided with two parallel notches (11), and the mounting part (12) is located between the two notches (11). The wingtip (2) has two connecting parts (21) at the bottom that are adapted to the two notches (11). The rotating shaft structure (3) is provided to extend laterally through the mounting part (12) and the two connecting parts (21); The locking component (4) is located inside the mounting part (12); The bottom surface of the wingtip (2) and the top surface of the wing root (1) are both positive slopes, while the bottom surface of the connecting part (21) and the bottom surface of the notch (11) are both negative slopes with the opposite inclination direction to the positive slopes.

3. A novel folding rudder according to claim 2, characterized in that, The rotating shaft structure (3) includes a torsion bar spring section (31) and rotating shaft sections (32) located at both ends of the torsion bar spring section (31). The mounting part (12) is provided with a first transverse through hole (121), and the torsion bar spring section (31) is provided in the first through hole (121) and can rotate freely in the first through hole (121); The pivot section (32) is provided and fixedly connected to the connecting part (21) laterally. One end of the pivot section (32) is provided in the first through hole (121) and rotatably connected to it, and the other end is inserted in the wing root (1) and rotatably connected to it.

4. A novel folding rudder according to claim 2, characterized in that, The locking component (4) is provided in two sets, and the two sets of locking components (4) are located above and below the rotating shaft structure (3), respectively.

5. A novel folding rudder according to claim 4, characterized in that, The two sets of locking components (4) have the same structure and are symmetrically arranged on both sides of the rotating shaft structure (3) with the rotating shaft structure (3) as the axis of symmetry.

6. A novel folding rudder according to claim 2, characterized in that, The rotating shaft structure (3) is located at the middle position between the mounting part (12) and the connecting part (21).

7. A novel folding rudder according to claim 2, characterized in that, The locking assembly (4) includes a top pressure spring (41) and locking pins (42) located at both ends of the top pressure spring (41). The connecting part (21) has a locking groove (211) on the side near the mounting part (12). When the wingtip (2) is in the deployed state, the locking pin (42) is inserted into the locking groove (211); When the wingtip (2) is in a folded state, the end of the locking pin (42) presses against the side of the connecting part (21) near the mounting part (12).

8. A novel folding rudder according to claim 7, characterized in that, The locking assembly (4) also includes a detachable locking clamp (43) fixed to the end of the locking pin (42). The locking groove (211) includes a clamp part that matches the shape of the locking clamp (43) and an end head that matches the end of the locking pin (42), and the clamp part and the end head are connected. The mounting part (12) has a receiving groove (124) on the end face near the locking groove (211) for accommodating the locking clamp (43), and the shape of the receiving groove (124) is adapted to the locking clamp (43).

9. A novel folding rudder according to claim 7, characterized in that, The locking pin (42) is also provided with an unlocking hole (421) for the locking pin (42) to be pushed out of the locking groove (211).

10. A novel folding rudder according to claim 7, characterized in that, The mounting part (12) is provided with a coaxial and connected spring hole section (122) and a pin hole section (123), with the spring hole section (122) located between the two pin hole sections (123); The top pressure spring (41) is located in the spring hole section (122), and the locking pin (42) is located in the pin hole section (123); The locking pin (42) is also provided with a limiting ring protrusion (422) located in the spring hole section (122), and the top spring (41) presses against the end face of the limiting ring protrusion (422).

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