CN113460321A

CN113460321A - Unmanned aerial vehicle launches shutting release and coaster

Info

Publication number: CN113460321A
Application number: CN202110697890.6A
Authority: CN
Inventors: 马笑笑; 李艳明; 张远昭; 刘斌; 郭九明; 郑程飞
Original assignee: Beijing Machinery Equipment Research Institute
Current assignee: Beijing Machinery Equipment Research Institute
Priority date: 2021-06-23
Filing date: 2021-06-23
Publication date: 2021-10-01

Abstract

The invention discloses an unmanned aerial vehicle ejection locking release device and a pulley, wherein the ejection locking release device comprises a locking retaining arm, a pre-tightening spring, a swinging mechanism and a reset mechanism, the locking retaining arm is connected with the swinging mechanism and can swing along with the swinging mechanism to switch between a locking state and an unlocking state, and the pre-tightening spring is connected with the locking retaining arm and the swinging mechanism and is used for providing pre-tightening force for keeping the locking retaining arm and the swinging mechanism in the locking state; the locking stop arm and the swinging mechanism are kept at a locking position under the action of a pretightening force in a locking state, and the resetting mechanism contracts under the abutting of the swinging mechanism; in the unlocking state, the swing mechanism can swing under the action of ejection force and drive the locking blocking arm to swing to the unlocking position from the locking position, and the reset mechanism resists the swing mechanism to keep the locking blocking arm and the swing mechanism at the unlocking position. The invention can realize the quick reset between the locking state and the unlocking state and the locking release of the unmanned aerial vehicle.

Description

Unmanned aerial vehicle launches shutting release and coaster

Technical Field

The invention relates to the technical field of unmanned aerial vehicle ejection, in particular to an unmanned aerial vehicle locking and releasing mechanism for an ejection device.

Background

The unmanned aerial vehicle is an unmanned aerial vehicle controlled by a radar or an airborne program and is mainly used for detecting and monitoring, deceiving baits, implementing interference, attacking the ground and the like. Compare in traditional aircraft, unmanned aerial vehicle has advantages such as the hidden nature is good, low in cost, take off and land simple, flexible operation, plays more and more important effect in military affairs and civilian field.

In the research of the relevant technology of the unmanned aerial vehicle, the unmanned aerial vehicle catapulting is a novel launching mode. The ejection of the unmanned aerial vehicle means that the unmanned aerial vehicle reaches the initial takeoff speed by means of electromagnetic thrust or pneumatic thrust and the like. The unmanned aerial vehicle locking release technology is a technology with high difficulty and large technical content, requires that a body is stabilized on a tackle when an engine of the unmanned aerial vehicle is in test run, limits the unmanned aerial vehicle, prevents the unmanned aerial vehicle from automatically breaking away from accidents under the test run or strong wind environment, automatically unlocks the unmanned aerial vehicle at the ejection initial stage, enables the unmanned aerial vehicle to have an ejection state, and can flexibly break away from the tackle. The existing locking and releasing mechanism mainly adopts two forms of a shearing pin and an impact turnover arm, but has the problems of long reset period, complex replacement, short service life and the like.

Disclosure of Invention

Aiming at the problems in the prior art, the invention aims to provide the ejection locking release device of the unmanned aerial vehicle, which can be reset quickly and has high reliability.

Another object of the present invention is to provide a tackle equipped with the above-mentioned unmanned aerial vehicle latch release mechanism.

In order to achieve the above object, a first aspect of the present invention provides an unmanned aerial vehicle ejection latch release device, including a latch arm, a pre-tightening spring, a swing mechanism and a reset mechanism, where the latch arm is connected to the swing mechanism and can swing with the swing mechanism to switch between a locked state and an unlocked state, and the pre-tightening spring is connected to the latch arm and the swing mechanism and is configured to provide a pre-tightening force for keeping the latch arm and the swing mechanism in the locked state; in a locking state, the locking stop arm and the swinging mechanism are kept in a locking position under the action of pretightening force, and the resetting mechanism is pressed by the swinging mechanism to contract; in the unlocking state, the swing mechanism can swing under the action of ejection force and drive the locking stop arm to swing from the locking position to the unlocking position, and the reset mechanism abuts against the swing mechanism to keep the locking stop arm and the swing mechanism at the unlocking position.

Further, swing mechanism includes three horn arms, middle arm and pendulum, the one end of middle arm with the shutting keeps off the arm and articulates, the other end of middle arm with the first angular point of three horn arms is articulated, the second angular point of three horn arms with the pendulum is articulated, the third angular point of three horn arms is articulated with three horn arm pivot, three horn arms can wind three horn arm pivot swing.

Furthermore, the blocking arm is hinged to the blocking arm rotating shaft, and the blocking arm can swing around the blocking arm rotating shaft under the driving of the swing mechanism.

Furthermore, one end of the pre-tightening spring is installed on the blocking arm rotating shaft, the other end of the pre-tightening spring is installed on the triangular arm, in a locking state, a hinge point of the middle arm and the blocking arm, the first angular point and the third angular point are collinear, and the third angular point, the second angular point and the center of gravity of the pendulum bob are collinear.

Further, the reset mechanism comprises a limit shell, a bolt and a reset spring, the reset spring is sleeved between the limit shell and the bolt, and the bolt is pressed against the triangular arm and compresses the reset spring in a locking state; in an unlocking state, the bolt is separated from the triangular arm, and the reset spring pushes the bolt to abut against a return route of the triangular arm.

The invention provides a tackle for launching an unmanned aerial vehicle, which comprises a tackle main body and the unmanned aerial vehicle launching latch release device, wherein the tackle main body is provided with a connecting seat for mounting the unmanned aerial vehicle and the unmanned aerial vehicle launching latch release device, and the unmanned aerial vehicle launching latch release device can be switched from a locking state to an unlocking state under the action of launching force of the tackle main body or can be returned from the unlocking state to the locking state through the action of a reset mechanism.

Further, unmanned aerial vehicle cartridge is in the connecting seat, and in the locking state unmanned aerial vehicle is spacing between shutting fender arm and the connecting seat.

Further, wear to be equipped with in the coaster main part and keep off arm pivot and three horn arm pivots, keep off the arm pivot with three horn arm pivots are parallel to each other and the interval sets up, the rotatable setting of shutting fender arm is in keep off in the arm pivot, swing mechanism rotates and to set up in the three horn arm pivots.

Further, the pulley body is provided with a hollow cavity, and the swing mechanism is accommodated in the hollow cavity.

The unmanned aerial vehicle locking and releasing device provided by the invention can realize rapid resetting between a locking state and an unlocking state under the matching of the resetting mechanism and the swinging mechanism, and can realize locking and releasing of the unmanned aerial vehicle by driving the locking retaining arm to switch between the locking position and the unlocking position through the swinging mechanism.

It is to be understood that both the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the invention, as claimed.

Drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings needed to be used in the description of the embodiments will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without creative efforts.

Fig. 1 is a perspective view of a latch release mechanism of an unmanned aerial vehicle according to an embodiment of the present invention;

fig. 2 is a schematic view of a locking release device of an unmanned aerial vehicle according to an embodiment of the present invention in a locked state;

FIG. 3 is a schematic view of an unmanned lockout release device according to an embodiment of the present invention, with a pre-tensioned spring omitted, in an unlocked state;

FIG. 4 is a perspective view of a sled according to one embodiment of the invention;

FIG. 5 is a schematic view of the latch release on the tackle of one embodiment of the present invention in the locked state;

FIG. 6 is a schematic view of a latch release on a sled of an embodiment of the present invention in an unlocked state.

Detailed Description

Example embodiments will now be described more fully with reference to the accompanying drawings. Example embodiments may, however, be embodied in many different forms and should not be construed as limited to the examples set forth herein; rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the concept of example embodiments to those skilled in the art.

In the description of the embodiments of the present invention, it should be noted that the term "connected" is to be understood broadly, and may be, for example, fixed, detachable, or integrally connected, and may be mechanically or electrically connected, and may be directly or indirectly connected through an intermediate medium, unless otherwise specifically stated or limited. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.

The terms "top," "bottom," "above … …," "below," and "above … …," "left-right direction," "up-down direction" as used throughout the description are relative positions with respect to components of the device, such as the relative positions of the top and bottom substrates inside the device. It will be appreciated that the devices are multifunctional, regardless of their orientation in space.

The terms "first" and "second" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implying a number of the indicated technical features. Thus, a defined feature of "first", "second", may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless otherwise specified.

In order to make the objects, technical solutions and advantages of the present invention more apparent, embodiments of the present invention will be described in detail with reference to the accompanying drawings.

As shown in fig. 1-3, the apparatus for releasing the ejection lock of the unmanned aerial vehicle according to the present invention includes a lock arm 1, a pre-tightening spring 2, a swing mechanism 3, and a reset mechanism 4, wherein the lock arm 1 is connected to the swing mechanism 3 and can swing with the swing mechanism 3 to switch between a locked state (see fig. 2) and an unlocked state (see fig. 3), and the pre-tightening spring 2 is connected to the lock arm 1 and the swing mechanism 3 and is configured to provide a pre-tightening force for keeping the lock arm 1 and the swing mechanism 3 in the locked state; the reset mechanism 4 is abutted against the swing mechanism 3 and is used for being abutted against or separated from the return direction of the swing mechanism 3 under the swing of the swing mechanism 3; in a locking state, the locking blocking arm 1 and the swinging mechanism 3 are kept at a locking position under the action of a pretightening force, the resetting mechanism 4 contracts under the abutting pressure of the swinging mechanism 3, and the locking blocking arm 1 at the locking position abuts against one side of the ejection and emission of the unmanned aerial vehicle to limit the unmanned aerial vehicle on a tackle; in the unlocking state swing mechanism 3 can swing and drive under the effect of ejection force the shutting keeps off arm 1 and swings to the unlocking position from the latched position, canceling release mechanical system 4 keeps off swing mechanism 3 is in order to keep shutting keeps off arm 1 and swing mechanism 3 in the unlocking position, and the shutting that is located the unlocking position keeps off arm 1 and avoids unmanned aerial vehicle's ejection transmission route.

Swing mechanism 3 includes triangle arm 31, middle arm 32 and pendulum 33, and the shutting keeps off arm 1 and keeps off arm pivot 6 and articulate, the one end of middle arm 32 with the shutting keeps off arm 1 and articulates, the other end of middle arm 32 with the first angular point 311 of triangle arm 31 is articulated, the second angular point 312 of triangle arm 31 with pendulum 33 is articulated, the third corner point 313 of triangle arm 31 is articulated with triangle arm pivot 5, triangle arm 31 can wind triangle arm pivot 5 swings, the shutting keeps off arm 1 can wind keep off arm pivot 6 swings. One end of a pre-tightening spring 2 is installed on the arm blocking rotating shaft 6, the other end of the pre-tightening spring 2 is installed on the triangular arm 31, specifically, one end of the pre-tightening spring 2 is sleeved on the periphery of the arm blocking rotating shaft 6, the other end of the pre-tightening spring 2 is sleeved on a convex point of the triangular arm, and the convex point can be arranged between the third corner point 313 and the first corner point 311. In the ejection preparation phase, the locking catch arm 1 and the pivoting mechanism 3 can be held in the locked position (see fig. 2) under the pretensioning force of the pretensioning spring 2. In the locked position, the pivot point 321 of the intermediate arm 32 with the blocking bar arm 1, the first angle point 311 and the third angle point 313 are collinear, and the third angle point 313, the second angle point 312 and the center of gravity of the pendulum 33 are collinear. Blocking at latched position keeps off arm 1 and receives from how big thrust of unmanned aerial vehicle, can't the unblock all, blocks at latched position and keeps off arm 1 and support and keep off on unmanned aerial vehicle's moving path, realizes the shutting limit function when unmanned aerial vehicle tests the car. At the ejection stage of taking off, swing mechanism 3 can be accelerated motion under the effect of ejection thrust, when reaching predetermined acceleration a, the pretightning force of pretension spring 2 can be overcome to the horizontal pulling force that pendulum 33 produced because inertia, cause to drive shutting fender arm 1 through the swing of swing mechanism 3 and swing around fender arm pivot 6, and then pull open shutting fender arm to 1 unblock position (see fig. 3), shutting fender arm 1 in unblock position avoids unmanned aerial vehicle's ejection emission route, shutting fender arm 1 no longer is spacing to unmanned aerial vehicle, unmanned aerial vehicle relies on ejection thrust to be launched down this moment.

Reset mechanism 4 includes spacing shell 41, bolt 42 and reset spring 43, reset spring 43 suit is in spacing shell 41 with between the bolt 42, unmanned aerial vehicle shutting release is at the lock-out state, bolt 42 support press in the side of triangle arm 31 and compression reset spring 43 is provided with the arch on the bolt 42 periphery, compresses the reset spring 43 between the two through protruding and the cooperation of spacing shell 41, and bolt 42 is blocked by triangle arm 31. Unmanned aerial vehicle shutting release is at the unblock state, and triangle arm 31 no longer blocks bolt 42 around triangle arm pivot 5 turned position after, bolt 42 with triangle arm 31 breaks away from, and reset spring 43 resumes free length and promotes bolt 42 and pops out to triangle arm 31's backswing route, makes bolt 42

The blocking triangular arm 31 no longer swings back, and the locking blocking arm 1 is kept at the unlocking position. After ejection is completed, the bolt 42 is pulled out, and the locking stop arm is pushed back to the locking position, so that the unmanned aerial vehicle locking release device is reset from the unlocking state to the locking state.

Through above structure setting for middle arm and three horn arm coincidence during initial condition, the shutting keeps off the arm and no matter receives from unmanned aerial vehicle big thrust, can't the unblock in latched position all, realizes the shutting limit function when unmanned aerial vehicle tests the car. The gravity center of the pendulum bob is in the same line with the rotating point of the pendulum bob and the fixed rotating point of the triangular arm, so that the triangular arm and the middle arm are coincided at the initial moment, and the unlocking force of the mechanism can be adjusted by adjusting the weight of the pendulum bob. The spring of spring bolt is in compression state at the initial moment, and when the mechanism unblock, the spring bolt stretches out and carries out machinery spacingly to three horn arms, ensures that unmanned aerial vehicle separates with the coaster smoothly.

As shown in fig. 4-6, the unmanned aerial vehicle ejection trolley of the present invention includes a trolley main body 7 and the above-mentioned unmanned aerial vehicle ejection latch release device, the trolley main body 7 is provided with a connecting seat 71 for mounting an unmanned aerial vehicle 8 and the unmanned aerial vehicle ejection latch release device, and the unmanned aerial vehicle ejection latch release device can be switched from a locked state to an unlocked state under the action of the ejection force of the trolley main body 7, or can be returned from the unlocked state to the locked state through the action of the reset mechanism 4.

The drone 8 is inserted into the connecting socket 71, and in a locked state, the drone is clamped between the locking arm 1 and the connecting socket 7 (see fig. 5), so that the drone 8 is limited on the connecting socket 71 by the locking arm 1. The structure, the arrangement mode and the working principle of the unmanned aerial vehicle ejection locking release device in the locking state are described in detail in the above embodiments, and are not described herein again.

In an embodiment of the present invention, the pulley body 7 has a hollow cavity, and the swing mechanism 3 is accommodated in the hollow cavity, so that the whole equipment structure is more compact.

Wear to be equipped with on the coaster main part 7 and keep off arm pivot 6 and triangle arm pivot 5, keep off arm pivot 6 with triangle arm pivot 5 is parallel to each other and the interval sets up, the shutting keeps off 1 rotatable settings of arm and is in keep off in the arm pivot 6, the rotatable setting of swing mechanism 3 is in triangle arm pivot 5 is last.

In conclusion, the unmanned aerial vehicle locking and releasing device provided by the invention can realize rapid resetting between the locking state and the unlocking state under the matching of the resetting mechanism and the swinging mechanism, and can realize locking and releasing of the unmanned aerial vehicle by driving the locking blocking arm to switch between the locking position and the unlocking position through the swinging mechanism.

Other embodiments of the invention will be apparent to those skilled in the art from consideration of the specification and practice of the invention disclosed herein. This application is intended to cover any variations, uses, or adaptations of the invention following, in general, the principles of the invention and including such departures from the present disclosure as come within known or customary practice within the art to which the invention pertains. It is intended that the specification and examples be considered as exemplary only, with a true scope and spirit of the invention being indicated by the following claims.

It will be understood that the invention is not limited to the precise arrangements described above and shown in the drawings and that various modifications and changes may be made without departing from the scope thereof. The scope of the invention is limited only by the appended claims.

Claims

1. An unmanned aerial vehicle ejection locking release device is characterized by comprising a locking blocking arm, a pre-tightening spring, a swinging mechanism and a reset mechanism, wherein the locking blocking arm is connected with the swinging mechanism and can swing along with the swinging mechanism to switch between a locking state and an unlocking state; in a locking state, the locking stop arm and the swinging mechanism are kept in a locking position under the action of pretightening force, and the resetting mechanism is pressed by the swinging mechanism to contract; in the unlocking state, the swing mechanism can swing under the action of ejection force and drive the locking stop arm to swing from the locking position to the unlocking position, and the reset mechanism abuts against the swing mechanism to keep the locking stop arm and the swing mechanism at the unlocking position.

2. The unmanned aerial vehicle catapult latch release of claim 1, wherein the swing mechanism includes a triangular arm, an intermediate arm, and a pendulum, one end of the intermediate arm is hinged to the latch catch arm, the other end of the intermediate arm is hinged to a first corner point of the triangular arm, a second corner point of the triangular arm is hinged to the pendulum, a third corner point of the triangular arm is hinged to a triangular arm pivot, and the triangular arm is capable of swinging about the triangular arm pivot.

3. The unmanned aerial vehicle catapult latch release of claim 2, wherein the latch arm is pivotally connected to a latch arm pivot, and the latch arm is capable of pivoting about the latch arm pivot upon actuation of the pivoting mechanism.

4. The unmanned aerial vehicle catapult latch release of claim 3, wherein one end of the pre-tension spring is mounted on the latch arm shaft, the other end of the pre-tension spring is mounted on the triangular arm, and in the locked state, a hinge point of the intermediate arm with the latch arm, the first angular point and the third angular point are collinear, and the third angular point, the second angular point and a center of gravity of the pendulum are collinear.

5. The unmanned aerial vehicle ejection latch release of claim 4, wherein the return mechanism includes a limit housing, a latch, and a return spring, the return spring being sleeved between the limit housing and the latch, the latch pressing against the triangular arm and compressing the return spring in the locked state; in an unlocking state, the bolt is separated from the triangular arm, and the reset spring pushes the bolt to abut against a return route of the triangular arm.

6. A tackle for launching an unmanned aerial vehicle, comprising a tackle body and the launch latch release device as claimed in any one of claims 1 to 5, wherein the tackle body is provided with a connecting seat for mounting the unmanned aerial vehicle and the launch latch release device, and the launch latch release device can be switched from a locked state to an unlocked state under the action of the launch force of the tackle body or can be returned from the unlocked state to the locked state through the action of the reset mechanism.

7. A tackle as claimed in claim 6, wherein the drone is inserted into the attachment socket, the drone being captured between the blocking arm and the attachment socket in the locked condition.

8. The tackle as claimed in claim 6, wherein a stop arm shaft and a triangular arm shaft are formed through the tackle body, the stop arm shaft and the triangular arm shaft are parallel to each other and spaced apart from each other, the locking stop arm is rotatably disposed on the stop arm shaft, and the swing mechanism is rotatably disposed on the triangular arm shaft.