UAV conformal canopy hinge structure

Abstract

The embodiment of the present invention discloses a UAV conformal canopy hinge structure, which comprises: a hinge mounting base, a first hinge shaft, a give-way rocker arm, a second hinge shaft, and an extended-range rocker arm; wherein the hinge mounting base is arranged on the inner side of the fuselage; the first hinge shaft is arranged on the hinge mounting base and can rotate relative to the hinge mounting base; one end of the give-way rocker arm is connected to the first hinge shaft; the second hinge shaft is arranged at the other end of the give-way rocker arm and can rotate relative to the give-way rocker arm; the extended-range rocker arm is connected to the second hinge shaft, and the canopy is connected to the extended-range rocker arm on the side facing the fuselage; wherein the canopy approaches or moves away from the opening through the extended-range rocker arm and the give-way rocker arm, and when the canopy covers the opening, the give-way rocker arm and the extended-range rocker arm are located inside the fuselage. The UAV conformal canopy hinge structure can realize the large-angle opening and closing of the UAV canopy without destroying the aerodynamic shape of the UAV surface.

Description

Technical Field

[0001] The present invention relates to the field of aircraft, and in particular to a conformal hatch hinge structure for an unmanned aerial vehicle. Background Art

[0002] In the design requirements of drones, for the purpose of daily maintenance, equipment loading, mission delivery, etc., drones need to have necessary hatches on the fuselage. The opening and closing of the hatch involves the hinge structure. The existing conventional hinge structure has interference problems between the shaft, rocker arm and the fuselage skin. In order to achieve a large-angle opening and closing of the hatch, the shaft must be pressed against the outer surface of the fuselage skin when installing the fixed hinge. This destroys the originally smooth aerodynamic shape of the fuselage skin and increases the air resistance of the drone.

[0003] Therefore, it is necessary to develop a UAV conformal canopy hinge structure that can realize large-angle opening and closing of the UAV canopy without destroying the aerodynamic shape of the UAV surface.

[0004] The information disclosed in the background technology section of the present invention is only intended to deepen the understanding of the general background technology of the present invention, and should not be regarded as acknowledging or suggesting in any form that the information constitutes the prior art already known to those skilled in the art. Summary of the invention

[0005] The purpose of the present invention is to provide a UAV conformal canopy hinge structure, which can realize the large-angle opening and closing of the UAV canopy without destroying the aerodynamic shape of the UAV surface.

[0006] In order to achieve the above-mentioned object, a conformal canopy hinge structure of a drone is provided according to the present invention. The drone comprises a fuselage, an opening on the fuselage and a canopy for covering the opening. The conformal canopy hinge structure of the drone comprises: a hinge mounting base, a first hinge shaft, a yielding rocker arm, a second hinge shaft and a range-extending rocker arm;

[0007] The hinge mounting base is arranged on the inner side of the fuselage; the first hinge shaft is arranged on the hinge mounting base and can rotate relative to the hinge mounting base; one end of the give-way rocker arm is connected to the first hinge shaft; the second hinge shaft is arranged at the other end of the give-way rocker arm and can rotate relative to the give-way rocker arm; the extended-range rocker arm is connected to the second hinge shaft, and the side of the cabin cover facing the fuselage is connected to the extended-range rocker arm;

[0008] The hatch cover is moved closer to or farther away from the opening through the extended-range rocker arm and the give-way rocker arm. When the hatch cover covers the opening, the give-way rocker arm and the extended-range rocker arm are located inside the fuselage.

[0009] Preferably, it further comprises a hinge torsion spring, wherein the hinge torsion spring is sleeved on the first hinge shaft and installed coaxially with the first hinge shaft, and the hinge torsion spring can drive the first hinge shaft to rotate.

[0010] Preferably, a locking member is further included, which is arranged on the hinge mounting base and is used to lock or loosen the hinge torsion spring.

[0011] Preferably, the give-way rocker arm is U-shaped, and the opening depth of the U-shape is adapted to the distance between the first hinge shaft and the opening.

[0012] Preferably, the range-extending rocker arm is in the shape of an elongated strip, and the arrangement direction of the range-extending rocker arm is parallel to the length direction of the cabin cover.

[0013] Preferably, a limiting member is provided at one end of the extended-range rocker arm close to the give-way rocker arm, and when the extended-range rocker arm rotates toward the give-way rocker arm, the limiting member can abut against the give-way rocker arm to drive the give-way rocker arm to rotate.

[0014] Preferably, a load-reducing hole is provided on the range-extending rocker arm.

[0015] Beneficial effects: The conformal hatch hinge structure of the drone of the present application has a hinge mounting base arranged on the inner side of the fuselage, and a two-stage transmission method is adopted to drive the hatch to rotate by setting a yielding rocker arm and an extended-range rocker arm, thereby avoiding interference between the rocker arm and the fuselage skin when the hinge is opened and closed, and does not damage the aerodynamic shape of the drone surface, thereby reducing the air resistance of the drone during operation, and at the same time realizing a large-angle opening and closing of the drone hatch. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a structural schematic diagram of a UAV conformal canopy hinge structure according to an embodiment of the present invention.

[0017] Figure 2 It is a schematic diagram of the closed state of the hatch of a UAV conformal hatch hinge structure according to an embodiment of the present invention.

[0018] Description of reference numerals:

[0019] 1. Hinge mounting base; 2. First hinge shaft; 3. Give-way rocker arm; 4. Hinge torsion spring; 5. Second hinge shaft; 6. Extended-range rocker arm. DETAILED DESCRIPTION

[0020] The technical solution of the present invention is described in detail below with reference to the accompanying drawings.

[0021] According to one aspect of the present invention, a UAV conformal canopy hinge structure is provided. The UAV comprises a fuselage, an opening on the fuselage, and a canopy for covering the opening. The UAV conformal canopy hinge structure comprises: a hinge mounting base, a first hinge shaft, a yielding rocker arm, a second hinge shaft, and an extended-range rocker arm;

[0022] The hinge mounting base is arranged on the inner side of the fuselage; the first hinge shaft is arranged on the hinge mounting base and can rotate relative to the hinge mounting base; one end of the give-way rocker arm is connected to the first hinge shaft; the second hinge shaft is arranged at the other end of the give-way rocker arm and can rotate relative to the give-way rocker arm; the extended-range rocker arm is connected to the second hinge shaft, and the side of the cabin cover facing the fuselage is connected to the extended-range rocker arm;

[0023] The hatch cover is moved closer to or farther away from the opening through the extended-range rocker arm and the give-way rocker arm. When the hatch cover covers the opening, the give-way rocker arm and the extended-range rocker arm are located inside the fuselage.

[0024] The unmanned aerial vehicle conformal hatch hinge structure provided by the present invention has a structure in which the yielding rocker arm rotates through the first hinge shaft, and the range-extending rocker arm rotates through the second hinge shaft during the hatch cover opening process, thereby driving the hatch cover arranged on the range-extending rocker arm to move away from the opening on the fuselage; during the hatch cover closing process, the hatch cover drives the range-extending rocker arm to rotate, and the range-extending rocker arm drives the yielding rocker arm to rotate until the hatch cover covers the opening; in the unmanned aerial vehicle conformal hatch hinge structure of the present application, the hinge mounting base is arranged on the inner side of the fuselage, and the hatch cover is driven to rotate by means of a two-stage transmission through the arrangement of the yielding rocker arm and the range-extending rocker arm, thereby avoiding the interference problem between the rocker arm and the fuselage skin when the hinge is opened and closed, not damaging the aerodynamic shape of the unmanned aerial vehicle surface, reducing the air resistance during the operation of the unmanned aerial vehicle, and realizing the large-angle opening and closing of the unmanned aerial vehicle hatch cover.

[0025] Furthermore, it also includes a hinge torsion spring, which is sleeved on the first hinge shaft and installed coaxially with the first hinge shaft, and the hinge torsion spring can drive the first hinge shaft to rotate.

[0026] In this technical solution, the UAV conformal hatch hinge structure further includes a hinge torsion spring. Through the setting of the hinge spring, during the hatch opening process, the hinge torsion spring drives the give-way rocker arm to rotate, and the extended-range rocker arm rotates through the second hinge shaft, so as to drive the hatch set on the extended-range rocker arm away from the opening on the fuselage; during the hatch closing process, the hatch drive the extended-range rocker arm to rotate, and the extended-range rocker arm drives the give-way rocker arm to rotate, thereby overcoming the resistance of the hinge torsion spring until the hatch cover covers the opening; through the setting of the hinge torsion spring, the hatch cover is facilitated to open quickly.

[0027] Furthermore, it also includes a locking member, which is arranged on the hinge mounting base and is used to lock or loosen the hinge torsion spring.

[0028] In this technical solution, the UAV conformal hatch hinge structure further includes a locking member, which is used in combination with a hinge torsion spring. During the hatch opening process, the hinge torsion spring is first relaxed by the locking member, and the hinge torsion spring is in an unlocked state, thereby driving the give-way rocker arm to rotate. The extended-range rocker arm rotates through the second hinge shaft, thereby driving the hatch set on the extended-range rocker arm away from the opening on the fuselage; during the hatch closing process, the hatch drive the extended-range rocker arm to rotate, and the extended-range rocker arm drives the give-way rocker arm to rotate, overcoming the resistance of the hinge torsion spring until the hatch covers the opening, and then the hinge torsion spring is locked by the locking member to lock the hatch door, thereby facilitating the rapid opening and locking of the hatch.

[0029] Furthermore, the yield rocker arm is U-shaped, and the opening depth of the U-shape is adapted to the distance between the first hinge shaft and the opening.

[0030] In this technical solution, the shape of the give-way rocker is further provided. The give-way rocker is U-shaped, which can provide sufficient formation on the one hand, and on the other hand, the give-way rocker is arranged close to the fuselage. When the give-way rocker rotates, the plate of the fuselage can be at the U-shaped opening, so that the drone cabin cover can be opened and closed at a large angle without destroying the aerodynamic shape of the drone surface.

[0031] Furthermore, the range-extending rocker arm is in the shape of an elongated strip, and the setting direction of the range-extending rocker arm is parallel to the length direction of the cabin cover.

[0032] In this technical solution, the shape of the range-extending rocker arm is further provided. The range-extending rocker arm is in the shape of a long strip, which increases the contact area between the range-extending rocker arm and the cabin door, thereby ensuring that the cabin door is firmly fixed.

[0033] Furthermore, a limiting member is provided at one end of the extended-range rocker arm close to the give-way rocker arm, and when the extended-range rocker arm rotates toward the give-way rocker arm, the limiting member can abut against the give-way rocker arm to drive the give-way rocker arm to rotate.

[0034] In this technical solution, the extended-range rocker arm further includes a limit member. Through the setting of the limit member, during the closing process of the cabin door, the extended-range rocker arm can drive the yielding rocker arm to rotate, thereby facilitating the closing of the cabin door.

[0035] Furthermore, a load-reducing hole is provided on the range-extending rocker arm.

[0036] In this technical solution, a load-reducing hole is opened on the range-extending rocker arm, which reduces the deadweight of the range-extending rocker arm, reduces the production cost, and facilitates the closing of the cabin door.

[0037] Example 1

[0038] Figure 1 It is a structural schematic diagram of a UAV conformal canopy hinge structure according to an embodiment of the present invention. Figure 2 It is a schematic diagram of the closed state of the hatch of a UAV conformal hatch hinge structure according to an embodiment of the present invention.

[0039] like Figure 1 and Figure 2 As shown, the unmanned aerial vehicle conformal canopy hinge structure comprises: the unmanned aerial vehicle comprises a fuselage, an opening provided on the fuselage and a canopy for covering the opening, and the unmanned aerial vehicle conformal canopy hinge structure comprises: a hinge mounting base 1, a first hinge shaft 2, a yielding rocker arm 3, a second hinge shaft 5, and a range-extending rocker arm 6;

[0040] The hinge mounting base 1 is arranged on the inner side of the fuselage; the first hinge shaft 2 is arranged on the hinge mounting base 1 and can rotate relative to the hinge mounting base 1; one end of the give-way rocker arm 3 is connected to the first hinge shaft 2; the second hinge shaft 5 is arranged at the other end of the give-way rocker arm 3 and can rotate relative to the give-way rocker arm 3; the extended-range rocker arm 6 is connected to the second hinge shaft 5, and the cabin cover is connected to the extended-range rocker arm 6 on the side facing the fuselage;

[0041] The hatch cover is moved closer to or farther away from the opening through the extended-range rocker arm 6 and the give-way rocker arm 3 . When the hatch cover covers the opening, the give-way rocker arm 3 and the extended-range rocker arm 6 are located inside the fuselage.

[0042] The hinge also includes a hinge torsion spring 4, which is sleeved on the first hinge shaft 2 and installed coaxially with the first hinge shaft 2. The hinge torsion spring 4 can drive the first hinge shaft 2 to rotate.

[0043] It also includes a locking member, which is arranged on the hinge mounting base 1 and is used to lock or loosen the hinge torsion spring 4.

[0044] The give-way rocker arm 3 is U-shaped, and the opening depth of the U-shape is adapted to the distance between the first hinge shaft 2 and the opening.

[0045] The range-extending rocker arm 6 is in the shape of an elongated strip, and the setting direction of the range-extending rocker arm 6 is parallel to the length direction of the cabin cover.

[0046] Among them, a limiting member is provided at one end of the extended-range rocker arm 6 close to the give-way rocker arm 3. When the extended-range rocker arm 6 rotates toward the give-way rocker arm 3, the limiting member can abut against the give-way rocker arm 3 to drive the give-way rocker arm 3 to rotate.

[0047] Among them, a load-reducing hole is opened on the range-extending rocker arm 6.

[0048] Specifically, during the unfolding process of the hinge structure of the drone's conformal canopy, the locking part is opened first, and the hinge torsion spring 4 will provide the hinge opening and closing elastic force. Under the action of the elastic force, the yielding rocker arm 3 and the extended-range rocker arm 6 will automatically spring open at the same time. After the yielding rocker arm 3 reaches the maximum opening and closing angle, the extended-range rocker arm 6 continues to open and close to the maximum opening and closing position under the action of inertia. During the closing process of the drone's conformal canopy hinge structure, an external force needs to be applied to the extended-range rocker arm 6 to close the hinge. The extended-range rocker arm 6 first closes to the limit groove of the yielding rocker arm 3. At this time, the external force acts on the yielding rocker arm 3 through the extended-range rocker arm 6, and the yielding rocker arm 3 compresses the hinge torsion spring 4 to shrink until the hinge is closed and the locking part is locked.

[0049] This embodiment uses the UAV conformal canopy hinge structure to achieve large-angle opening and closing of the UAV canopy without destroying the aerodynamic shape of the UAV surface.

[0050] Finally, it should be noted that the above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or replace some of the technical features therein by equivalents. Any modification, equivalent replacement, improvement, 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 conformal hatch hinge structure for an unmanned aerial vehicle, the unmanned aerial vehicle comprising a fuselage, an opening on the fuselage, and a hatch for covering the opening, characterized in that: The hinge structure of the UAV conformal canopy includes: a hinge mounting base, a first hinge shaft, a yielding rocker arm, a second hinge shaft, and a range-extending rocker arm; The hinge mounting base is arranged on the inner side of the fuselage; the first hinge shaft is arranged on the hinge mounting base and can rotate relative to the hinge mounting base; one end of the give-way rocker arm is connected to the first hinge shaft; the second hinge shaft is arranged at the other end of the give-way rocker arm and can rotate relative to the give-way rocker arm; the extended-range rocker arm is connected to the second hinge shaft, and the cabin cover is connected to the extended-range rocker arm on the side facing the fuselage; Wherein, the hatch cover is close to or away from the opening through the extended-range rocker arm and the give-way rocker arm, and when the hatch cover covers the opening, the give-way rocker arm and the extended-range rocker arm are located inside the fuselage; The UAV conformal canopy hinge structure further includes: a hinge torsion spring, wherein the hinge torsion spring is sleeved on the first hinge shaft and is coaxially installed with the first hinge shaft, and the hinge torsion spring can drive the first hinge shaft to rotate; The UAV conformal canopy hinge structure further includes: a locking member, which is arranged on the hinge mounting base and is used to lock or loosen the hinge torsion spring; Wherein, the give-way rocker arm is U-shaped, and the opening depth of the U-shape is adapted to the distance between the first hinge shaft and the opening; Wherein, the range-extending rocker arm is in the shape of a long strip, and the setting direction of the range-extending rocker arm is parallel to the length direction of the cabin cover; Among them, a limiting member is provided at one end of the extended-range rocker arm close to the give-way rocker arm. When the extended-range rocker arm rotates toward the give-way rocker arm, the limiting member can abut against the give-way rocker arm to drive the give-way rocker arm to rotate.

2. The UAV conformal canopy hinge structure according to claim 1, characterized in that: A load-reducing hole is provided on the range-extending rocker arm.

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