CN218229393U - Unmanned aerial vehicle fin folding mechanism - Google Patents

Abstract

The utility model discloses an unmanned aerial vehicle fin folding mechanism relates to unmanned air vehicle technical field, specifically includes: the resetting device, the front beam and the positioning device provide resetting force; under the drive of the reset device, the folding part of the tail wing rotates and is switched from a folding state to an unfolding state; the front beam is positioned on the tail folding part and moves synchronously with the tail folding part, and a folding state fixing part and an unfolding state fixing part are arranged on the front beam; the positioning device is positioned on the tail wing fixing part and matched with the folded state fixing part or the unfolded state fixing part to limit the rotation of the tail wing folding part, so that the tail wing folding part is locked in a folded state or an unfolded state; the utility model discloses, can realize that the fin of X shape rudder is folding, simultaneously because the mechanism sets up inside the fin, saved the space to the utmost, still because positioner's setting can realize expandeing functions such as control and locking.

Description

Unmanned aerial vehicle fin folding mechanism

Technical Field

The utility model relates to an unmanned air vehicle technique field, concretely relates to unmanned aerial vehicle fin folding mechanism.

Background

The V-tail double-rudder surface is adopted by the tail wing of the small-sized unmanned aerial vehicle, the tail wing folding mechanism is realized through integral rotation, the X-shaped rudder is adopted by the tail part of the small-sized unmanned aerial vehicle, the tail wing folding function is difficult to realize through a rotation mode, a fixing mode of the stabilizing surface is adopted for multiple times, and the occupied space is large.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide a: the folding function of fin to having especially adopted the X shape rudder at present realizes the difficulty, realize the folding function of fin and the great problem of occupation space under the nervous condition that can't arrange the mechanism in fuselage space, an unmanned aerial vehicle fin folding mechanism is provided, the problem of the folding function of fin that has solved the small-size unmanned aerial vehicle fin especially adopted the X shape rudder realizes the difficulty has been solved under the nervous condition that can't arrange the mechanism in fuselage space, the function that the fin initiatively expandes and locks has been realized.

The technical scheme of the utility model as follows:

the utility model provides an unmanned aerial vehicle fin folding mechanism specifically includes following structure:

the resetting device provides resetting force, and the folding part of the tail wing is rotated under the driving of the resetting device, and is switched from a folding state to an unfolding state;

the front beam is positioned on the tail folding part and synchronously moves with the tail folding part, and a folding state fixing part and an unfolding state fixing part are arranged on the front beam;

the positioning device is positioned on the tail wing fixing part and matched with the folded state fixing part or the unfolded state fixing part to limit the rotation of the folded part of the tail wing, so that the folded part of the tail wing is locked in a folded state or an unfolded state.

The tail wing folding structure further comprises a rear beam, wherein the rear beam is positioned on the tail wing folding part and moves synchronously with the tail wing; preferably, the rear beam and the front beam are both inside the tail wing and belong to the support of the tail wing;

the roots of the front beam and the rear beam are provided with rotating shafts which can enable the tail folding part to rotate around the tail fixing part; preferably, the root parts of the front beam and the rear beam are provided with rotating shaft holes for the rotating shaft to pass through, and further description is omitted here for other rotating structures, and a person skilled in the art should complete the design of the rotating of the folding part of the tail wing without creative labor.

Furthermore, the resetting device is positioned on the tail folding part and synchronously moves with the tail folding part; preferably, the resetting device is fixed on a structural framework inside the empennage;

the reset device is connected with a tension transmission line, and the tension transmission line is bent around the pulley and then connected to the machine body; the connection to the fuselage is to improve stability, and if directly fixed to the tail fixing portion, it is not well stressed and is prone to accidents, and therefore, it is preferably fixed to the fuselage.

Furthermore, the resetting device is an elastic piece with elastic deformation capacity;

the tension transmission line is a steel cable;

the pulley is arranged on the tail wing fixing part;

one end of the elastic piece is fixedly arranged on the folding part of the tail wing, the other end of the elastic piece is connected with a steel cable, and the steel cable is connected with the machine body by bypassing the pulley; namely, in a folded state, the elastic part is stretched due to the folding of the folded part of the tail wing, and the elastic deformation is stored as elastic potential energy; when the restriction is removed, the elastic member converts the elastic potential energy into kinetic energy to move the steel cable, so that the folding part of the tail wing is driven to rotate and is converted into an unfolding state.

Furthermore, the elastic pieces are a plurality of tension springs; preferably, the number of the tension springs is 3;

one end of each tension spring is fixedly arranged on the folding part of the tail wing, and the other ends of the tension springs are connected into a whole through tension spring sliding support pieces;

one end of the steel cable is connected with the tension spring sliding support piece, and the other end of the steel cable is connected with the machine body; preferably, one end of the steel cable is connected with the middle part of the tension spring sliding support piece so as to ensure the stability to the maximum extent.

Furthermore, the elastic component is a gas spring or a plate spring, and can also be other devices with elastic deformation capacity, and the protection scope of the patent is included.

Further, fold condition fixed part is the arch of setting at the front beam root, expand the condition fixed part and be the recess that sets up at the front beam root.

Further, the positioning device includes: the rotating rocker arm is provided with a limiting shaft matched with the protrusion and the groove;

in a folded state, the protrusion at the root of the front beam is in contact with the limiting shaft on the rotating rocker arm to limit the rotation of the folded part of the tail wing, so that the folded state is locked;

under the unfolding state, the groove at the root of the front beam is in contact with the limiting shaft on the rotating rocker arm to limit the rotation of the folding part of the tail wing, so that the locking of the unfolding state is realized.

Further, the positioning device further comprises: the driving device drives the rotating rocker arm to move; preferably, the driving device is positioned at the tail fixing part;

the driving device drives the rotating rocker arm to move, so that the limiting shaft on the rotating rocker arm is clamped into or separated from the bulge and the groove.

Furthermore, the driving device is a steering engine or a motor with a self-locking function; preferably, the driving device is a steering engine, the steering engine is connected with the rotary rocker arm through a gear set, and the limiting shaft on the rotary rocker arm is clamped into or separated from the bulge and the groove through rotation of the steering engine driving gear set, so that the state locking of the tail wing is realized.

The working principle of the unmanned aerial vehicle empennage folding mechanism is as follows:

when the folding position of fin is folding, rotate the rocking arm through steering engine drive and rotate, make the spacing axle on the rotating rocking arm leave the recess of front-axle beam, manual rotation fin folding position to folding position, the inside extension spring in the folding position of fin is in the maximum tensile state this moment, steering engine reverse rotation again, the drive rotates the rocking arm return, spacing axle on the rotating rocking arm contacts with the arch of front-axle beam root, makes the part in fold condition and locks.

After receiving an unfolding instruction, the steering engine drives the rotating rocker arm to rotate, the limiting shaft on the rotating rocker arm leaves the bulge of the front beam, the folding part of the tail wing rotates to the unfolding position under the action of tension of the tension spring, the steering engine rotates reversely again to drive the rotating rocker arm to return, and the limiting shaft on the rotating rocker arm is in contact with the groove at the root part of the front beam, so that the tail wing is in an unfolding and locking state.

Compared with the prior art, the beneficial effects of the utility model are that:

an unmanned aerial vehicle fin folding mechanism, includes: the resetting device provides resetting force, and the folding part of the tail wing rotates under the driving of the resetting device and is switched from a folding state to an unfolding state; the front beam is positioned on the tail folding part and moves synchronously with the tail folding part, and a folding state fixing part and an unfolding state fixing part are arranged on the front beam; the positioning device is positioned on the tail wing fixing part and matched with the folded state fixing part or the unfolded state fixing part to limit the rotation of the tail wing folding part so as to lock the tail wing folding part in the folded state or the unfolded state; the mechanism can realize the folding of the empennage of the X-shaped rudder, simultaneously saves the space to the maximum extent because the mechanism is arranged inside the empennage, and simultaneously can realize the functions of unfolding control, locking and the like because of the arrangement of the positioning device.

Drawings

Fig. 1 is a schematic structural diagram of an unmanned aerial vehicle empennage folding mechanism;

fig. 2 is a schematic structural view of an unmanned aerial vehicle empennage folding mechanism in an unfolded state;

fig. 3 is a schematic structural diagram of the folding mechanism of the tail wing of the unmanned aerial vehicle in a folded state;

FIG. 4 is a schematic view of a V-arrangement tail fold;

fig. 5 is a folding schematic diagram of the tail in the X-shaped tail layout.

Reference numerals: 1-V-shaped tail wing layout tail wing unfolding position, 2-body, 3-V-shaped tail wing layout tail wing folding position, 4-X-shaped tail wing layout tail wing unfolding position, 5-X-shaped tail wing layout tail wing folding position, 101-tail wing folding position, 102-structural framework, 103-tension spring, 104-back beam, 105-pulley, 106-steel cable, 107-tension spring movable support piece, 108-limiting shaft, 109-front beam, 110-rotating rocker arm, 111-gear set and 112-steering engine.

Detailed Description

It is noted that relational terms such as "first" and "second," and the like, may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising a … …" does not exclude the presence of another identical element in a process, method, article, or apparatus that comprises the element.

The features and properties of the present invention will be described in further detail with reference to the following examples.

Example one

The V-tail double-rudder surface is adopted by the tail wing of the small-sized unmanned aerial vehicle, the tail wing folding mechanism is realized through integral rotation, the X-shaped rudder is adopted by the tail part of the small-sized unmanned aerial vehicle, the tail wing folding function is difficult to realize through a rotation mode, a fixing mode of the stabilizing surface is adopted for multiple times, and the occupied space is large.

In order to solve the above problems, the present embodiment provides an unmanned aerial vehicle empennage folding mechanism, wherein an empennage of the unmanned aerial vehicle empennage folding mechanism is folded from a root part in a rotating manner around the axis direction of a body; meanwhile, the wing unfolding mechanism is arranged in the empennage, so that the occupied space is greatly reduced, and active unfolding control and locking can be realized, and the problems are solved.

As shown in fig. 4, it is a folding schematic diagram of the tail of the V-shaped tail layout; the empennages in the V-shaped empennage layout are arranged on the fuselage 2 in an inclined and upward symmetrical mode, rotate downwards from the root of the empennage, and move from the unfolding position 1 of the empennages in the V-shaped empennage layout to the folding position 3 of the empennages in the V-shaped empennage layout.

As shown in fig. 5, it is a folding schematic diagram of the tail with an X-shaped tail layout; the X-shaped tail wing layout is adopted, the four tail wings are arranged in an X shape, rotate downwards from the root of the tail wing, and move from the unfolding position 4 of the tail wing of the X-shaped tail wing layout to the folding position 5 of the tail wing of the X-shaped tail wing layout.

Referring to fig. 1-3, an unmanned aerial vehicle empennage folding mechanism specifically includes the following structures:

a resetting device for providing resetting force, wherein the tail folding part 101 is rotated under the driving of the resetting device, and is switched from a folding state to an unfolding state;

the front beam 109 is positioned on the tail folding part 101 and moves synchronously with the tail folding part 101, and a folding state fixing part and an unfolding state fixing part are arranged on the front beam 109;

positioner, positioner is located fin fixed part, positioner and fold condition fixed part or the cooperation of expansion state fixed part restrict the folding position 101 of fin and rotate, make the folding position 101 of fin lock at fold condition or expansion state.

In this embodiment, specifically, the folding tail wing device further includes a rear beam 104, where the rear beam 104 is located on the tail wing folding portion 101 and moves synchronously with the tail wing; preferably, said rear beam 104 and front beam 109 are both internal to the tail, belonging to the support of the tail;

the root parts of the front beam 109 and the rear beam 104 are provided with rotating shafts which can enable the tail folding part 101 to rotate around the tail fixing part; preferably, the root portions of the front beam 109 and the rear beam 104 are provided with rotating shaft holes for the rotating shafts to pass through, and further description is omitted here for other rotating structures, and a person skilled in the art should complete the design of the rotating of the tail folding portion 101 without creative labor.

In the embodiment, specifically, the resetting device is located on the tail folding part 101 and moves synchronously with the tail folding part 101; preferably, the resetting device is fixed on the structural framework 102 inside the empennage;

the reset device is connected with a tension transmission line, and the tension transmission line is bent around the pulley 105 and then connected to the machine body 2; in the present embodiment, the connection to the main body 2 is made to improve the stability, and if the connection is directly fixed to the tail fixing portion, the force is not good, and an accident is easily caused, and therefore, it is preferably fixed to the main body 2.

In this embodiment, specifically, the resetting device is an elastic member having an elastic deformation capability;

the tension transmission line is a steel cable 106;

the pulley 105 is arranged on the tail fixing part;

one end of the elastic part is fixedly arranged on the tail folding part 101, the other end of the elastic part is connected with a steel cable 106, and the steel cable 106 is connected with the machine body 2 by bypassing the pulley 105; that is, in the folded state, the elastic member is elongated due to the folding of the tail folding portion 101, and the elastic deformation is stored as elastic potential energy; when the restriction is released, the elastic member converts the elastic potential energy into the kinetic energy to move the wire rope 106, thereby driving the folding portion 101 of the rear wing to rotate and convert into the unfolded state.

In this embodiment, specifically, the elastic member is a plurality of tension springs 103; preferably, the number of the tension springs 103 is 3;

one end of each tension spring 103 is fixedly arranged on the tail folding part 101, and the other ends of the tension springs 103 are connected into a whole through a sliding support part of each tension spring 103;

one end of the steel cable 106 is connected with the tension spring 103 sliding support piece, and the other end is connected with the machine body 2; preferably, one end of the steel cable 106 is connected with the middle part of the sliding support of the tension spring 103 to ensure the stability to the maximum extent.

In this embodiment, specifically, the elastic member is a gas spring or a plate spring, and may also be other devices having elastic deformation capability, which are all within the protection scope of this patent.

In this embodiment, specifically, the folded state fixing portion is a protrusion disposed at the root of the front beam 109, and the unfolded state fixing portion is a groove disposed at the root of the front beam 109.

In this embodiment, specifically, the positioning device includes: the rotary rocker arm 110 is provided with a limiting shaft 108 matched with the protrusion and the groove;

in a folded state, a bulge at the root part of the front beam 109 is in contact with a limiting shaft 108 on a rotating rocker arm 110 to limit the rotation of the tail folding part 101, so that the folded state is locked;

in the unfolded state, the groove at the root of the front beam 109 is in contact with the limiting shaft 108 on the rotating rocker arm 110 to limit the rotation of the tail folding part 101, so that the unfolded state is locked.

In this embodiment, specifically, the positioning device further includes: a driving device for driving the rotating rocker arm 110 to move; preferably, the driving device is positioned at the tail fixing part;

the driving device drives the rotating rocker arm 110 to move, so that the limiting shaft 108 on the rotating rocker arm 110 is clamped in or separated from the bulge and the groove.

In this embodiment, specifically, the driving device is a steering engine 112 or a motor with a self-locking function; preferably, the driving device is a steering engine 112, the steering engine 112 is connected with the rotary rocker arm 110 through a gear set 111, and the gear set 111 is driven by the steering engine 112 to rotate so as to enable the limiting shaft 108 on the rotary rocker arm 110 to be clamped into or separated from the protrusion and the groove, so that the state locking of the tail wing is achieved.

In this embodiment, the theory of operation that an unmanned aerial vehicle fin folding mechanism provided is as follows:

referring to fig. 3, when the folding part 101 of the tail wing is folded, the steering engine 112 drives the rotating rocker arm 110 to rotate, so that the limiting shaft 108 on the rotating rocker arm 110 leaves the groove of the front beam 109, the folding part 101 of the tail wing is manually rotated to a folding position, at this time, the tension spring 103 inside the folding part 101 of the tail wing is in a maximum stretching state, the steering engine 112 rotates reversely, the rotating rocker arm 110 is driven to return, the limiting shaft 108 on the rotating rocker arm 110 contacts with the protrusion at the root of the front beam 109, and the folding part is in a folding state and is locked.

Referring to fig. 2, after receiving an unfolding instruction, the steering engine 112 drives the rotating rocker arm 110 to rotate, the limiting shaft 108 on the rotating rocker arm 110 leaves the protrusion of the front beam 109, the tail folding part 101 rotates to the unfolding position under the pulling force of the tension spring 103, the steering engine 112 rotates in the reverse direction to drive the rotating rocker arm 110 to return, and the limiting shaft 108 on the rotating rocker arm 110 is in contact with the groove at the root of the front beam 109, so that the tail is unfolded and locked.

The above-mentioned embodiments only express the specific embodiments of the present application, and the description thereof is more specific and detailed, but not construed as limiting the scope of the present application. It should be noted that, for those skilled in the art, without departing from the technical idea of the present application, several changes and modifications can be made, which are all within the protection scope of the present application.

Claims (10)

1. The utility model provides an unmanned aerial vehicle fin folding mechanism which characterized in that includes:

the resetting device provides resetting force, and the folding part of the tail wing rotates under the driving of the resetting device and is switched from a folding state to an unfolding state;

the front beam is positioned on the tail folding part and moves synchronously with the tail folding part, and a folding state fixing part and an unfolding state fixing part are arranged on the front beam;

the positioning device is positioned on the tail wing fixing part and matched with the folded state fixing part or the unfolded state fixing part to limit the rotation of the folded part of the tail wing, so that the folded part of the tail wing is locked in a folded state or an unfolded state.

2. The unmanned aerial vehicle empennage folding mechanism is characterized by further comprising a back beam, wherein the back beam is located on the empennage folding part and moves synchronously with the empennage;

the roots of the front beam and the rear beam are provided with rotating shafts which can enable the tail folding part to rotate around the tail fixing part.

3. The unmanned aerial vehicle empennage folding mechanism as claimed in claim 2, wherein the resetting device is located on the empennage folding part and moves synchronously with the empennage folding part;

the resetting device is connected with a tension transmission line, and the tension transmission line is connected to the machine body after being bent around the pulley.

4. The unmanned aerial vehicle empennage folding mechanism as claimed in claim 3, wherein the resetting device is an elastic member with elastic deformation capability;

the tension transmission line is a steel cable;

the pulley is arranged on the tail wing fixing part;

one end of the elastic piece is fixedly arranged on the folding part of the tail wing, the other end of the elastic piece is connected with the steel rope, and the steel rope is connected with the machine body by bypassing the pulley.

5. The unmanned aerial vehicle empennage folding mechanism as claimed in claim 4, wherein the elastic member is a plurality of tension springs;

one end of each tension spring is fixedly arranged on the folding part of the tail wing, and the other ends of the tension springs are connected into a whole through the tension spring sliding support piece;

one end of the steel cable is connected with the tension spring sliding support piece, and the other end of the steel cable is connected with the machine body.

6. The folding mechanism of unmanned aerial vehicle empennage as claimed in claim 4, wherein the elastic member is a gas spring or a leaf spring.

7. The folding mechanism of unmanned aerial vehicle empennage as claimed in claim 1, wherein the folding state fixing part is a protrusion arranged at the root of the front beam, and the unfolding state fixing part is a groove arranged at the root of the front beam.

8. The unmanned aerial vehicle fin folding mechanism of claim 7, wherein the positioning device includes: the rotating rocker arm is provided with a limiting shaft matched with the protrusion and the groove;

in a folded state, the bulge at the root part of the front beam is contacted with the limiting shaft on the rotating rocker arm to limit the rotation of the folded part of the tail wing, so that the folded state is locked;

under the unfolding state, the groove at the root of the front beam is in contact with the limiting shaft on the rotating rocker arm to limit the rotation of the folding part of the tail wing, so that the locking of the unfolding state is realized.

9. The unmanned aerial vehicle tail folding mechanism of claim 8, wherein the positioning device further comprises: the driving device drives the rotating rocker arm to move;

the driving device drives the rotating rocker arm to move, so that the limiting shaft on the rotating rocker arm is clamped into or separated from the bulge and the groove.

10. The unmanned aerial vehicle empennage folding mechanism of claim 9, wherein the driving device is a steering engine or a motor with a self-locking function.

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