CN211196615U

CN211196615U - Unmanned aerial vehicle protection architecture

Info

Publication number: CN211196615U
Application number: CN201921751383.0U
Authority: CN
Inventors: 陈曦
Original assignee: Henan Guyi Automation Technology Co ltd
Current assignee: Henan Guyi Automation Technology Co ltd
Priority date: 2019-10-18
Filing date: 2019-10-18
Publication date: 2020-08-07
Anticipated expiration: 2029-10-18

Abstract

An unmanned aerial vehicle protection structure comprises a cantilever, wherein the cantilever is of a tubular structure, a telescopic arm capable of moving left and right is inserted in a tube cavity of the cantilever, a spring cavity is arranged in the middle of the tube cavity, a first reset spring sleeved outside the telescopic arm is arranged in the spring cavity, a first limiting part abutting against the left end of the cantilever and a second limiting part abutting against the left side wall of the spring cavity are arranged outside the telescopic arm, the left end of the first reset spring is fixed with the right side of the second limiting part, the right end of the first reset spring is fixed with the right side wall of the spring cavity, a first limiting groove and a second limiting groove are arranged between the first limiting part and the second limiting part at the lower side of the telescopic arm, a rotor wing is installed on the upper side wall of the left end of the telescopic arm through a vertically arranged motor, a rotor wing protective cover extending left is arranged on the upper side wall of the left end of the cantilever through a vertically arranged support rod, a locking mechanism of a telescopic cylinder is arranged on the lower side wall of the left end of the cantilever; the utility model has the characteristics of reasonable in design, protecting effect is good etc.

Description

Unmanned aerial vehicle protection architecture

Technical Field

The utility model relates to an unmanned air vehicle technique field, concretely relates to unmanned aerial vehicle protection architecture.

Background

A multi-rotor unmanned aerial vehicle is a special unmanned helicopter with three or more rotor shafts, and the rotor shafts are driven to rotate by a motor on each shaft so as to generate lift force; the collective pitch of the rotors is fixed and is not variable like a common helicopter; the single-shaft propelling force can be changed by changing the relative rotating speed between different rotors, so that the running track of the aircraft is controlled;

when many rotor unmanned aerial vehicle break down, unmanned aerial vehicle's rotor is very easy because receive violent striking and break, and unmanned aerial vehicle's rotor cost is higher, and then brings the unnecessary loss, consequently needs to optimize an unmanned aerial vehicle protection architecture.

SUMMERY OF THE UTILITY MODEL

The utility model aims at overcoming the not enough and providing an unmanned aerial vehicle protection architecture of prior art, have reasonable in design, characteristics such as protecting effect is good.

The technical scheme of the utility model according to down:

an unmanned aerial vehicle protection structure comprises a cantilever which is of a tubular structure, a telescopic arm capable of moving left and right is inserted in a tube cavity of the cantilever, a section of spring cavity is transversely arranged in the middle of the tube cavity, a first return spring sleeved outside the telescopic arm is arranged in the spring cavity, the outside of the telescopic arm is provided with a first limit part which is abutted against the left end of the cantilever and a second limit part which is abutted against the left side wall of the spring cavity, the left end of the first reset spring is fixed with the right side of the second limit part, the right end of the first reset spring is fixed with the right side wall of the spring cavity, a first limit groove and a second limit groove are arranged between the first limit part and the second limit part at the lower side of the telescopic arm, the upper side wall of the left end of the telescopic arm is provided with a rotor wing through a vertically arranged motor, and the upper side wall of the left end of the cantilever is provided with a rotor wing protective cover extending leftwards through a vertically arranged support rod frame;

the cantilever is characterized in that a mounting hole communicated with the cantilever tube cavity is vertically formed in the side wall of the left end of the cantilever, a magnetic coil winding, a limiting shaft sleeve and a lock shaft which moves upwards along the limiting shaft sleeve and is matched with the first limiting groove/the second limiting groove are sequentially arranged in the mounting hole from outside to inside, and a second reset spring is sleeved on the lock shaft.

Furthermore, the first limiting groove/the second limiting groove is of a conical structure with a small upper part and a large lower part, so that the lock shaft can conveniently move from bottom to top to be matched with the first limiting groove/the second limiting groove.

Further, the rotor protection casing includes upper and lower parallel arrangement's last protective cover and lower protective cover, it links to each other with 4 stands that the protective cover passes through vertical arrangement down to go up the protective cover, 4 stands form rotor protection storehouse together down, go up protective cover, 4 stands can give the omnidirectional protection of rotor down, and the protecting effect is good.

Further, the middle part of lower protective cover is equipped with rotor pivot guide way, gets into the rotor protection casing from the pivot guide way when the rotor moves to the rotor protection casing through the flexible of flexible arm.

Compared with the prior art, the beneficial effects of the utility model are that: by additionally arranging a telescopic arm on the cantilever of the unmanned aerial vehicle and additionally arranging a rotor wing protective cover on the upper side of the cantilever of the unmanned aerial vehicle, when a distance sensor of the unmanned aerial vehicle detects that the distance is 1m from the ground, a control signal is sent to a controller of a magnetic coil winding, the controller energizes the magnetic coil winding, a lock shaft overcomes the resistance of a second reset spring to be separated from a second limiting groove under the action of ampere force, the telescopic arm stretches inwards under the action of the tensile force of a first reset spring, the telescopic arm stops moving when a first limiting part is abutted against the left side of the cantilever, the magnetic force of the magnetic coil winding is lost when power is cut off, the lock shaft moves upwards under the action of the second reset spring to be matched with the second limiting groove to limit the relative movement of the telescopic arm and the cantilever, and then the rotor wing enters a protective; the utility model has the characteristics of reasonable in design, protecting effect is good etc.

Drawings

Fig. 1 is a state diagram of the rotor of the present invention when entering the rotor wing shield;

FIG. 2 is an enlarged view taken at A of FIG. 1;

fig. 3 is a state diagram of the rotor of the present invention when it leaves the rotor wing shield;

fig. 4 is a perspective view of the rotor wing protection cover of the present invention.

Reference numerals: 1. cantilever, 2, flexible arm, 3, the spring chamber, 4, first reset spring, 5, first spacing portion, 6, the spacing portion of second, 7, first spacing groove, 8, the spacing groove of second, 9, the rotor, 10, the bracing piece, 11, the rotor protection casing, 12, the mounting hole, 13, the magnetic coil winding, 14, spacing axle sleeve, 15, lock axle, 16, second reset spring, 17, go up the protective cover, 18, lower protective cover, 19, stand, 20, the guide way.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

As shown in fig. 1-4, an unmanned aerial vehicle protection structure comprises an unmanned aerial vehicle main body, wherein a distance sensor is arranged at the lower part of the unmanned aerial vehicle main body, and a controller and a power supply are arranged in the unmanned aerial vehicle main body; the unmanned aerial vehicle main body is uniformly provided with 4 cantilevers 1 along the periphery thereof; the cantilever 1 is of a tubular structure, a telescopic arm 2 capable of moving left and right is inserted in a tube cavity of the cantilever 1, a section of spring cavity 3 is transversely arranged in the middle of the tube cavity, a first reset spring 4 sleeved outside the telescopic arm 2 is arranged in the spring cavity 3, a first limiting part 5 abutting against the left end of the cantilever 1 and a second limiting part 6 abutting against the left side wall of the spring cavity 3 are arranged outside the telescopic arm 2, the left end of the first reset spring 4 is fixed with the right side of the second limiting part 6 in a welding mode, the right end of the first reset spring 4 is fixed with the right side wall of the spring cavity 3 in a welding mode, the first reset spring 4 is always in a stretched state, a first limiting groove 7 and a second limiting groove 8 are arranged between the first limiting part 5 and the second limiting part 6 at the lower side of the telescopic arm 2, the first limiting groove 7 is arranged between the first limiting part 5 and the left end of the cantilever 1, the second limit groove 8 is positioned in the spring cavity 3, the upper side wall of the left end of the telescopic arm 2 is provided with a rotor wing 9 through a vertically arranged motor, the rotor wing 9 is in threaded connection with a motor spindle through a rotor wing rotating shaft, and the upper side wall of the left end of the cantilever 1 is provided with a rotor wing protective cover 11 extending leftwards through a vertically arranged support rod 10;

the vertical mounting hole 12 that is equipped with upper end and 1 lumen intercommunication of cantilever of left end lower wall of cantilever 1, be equipped with magnetic coil winding 13, spacing axle sleeve 14 in proper order in the mounting hole 12 from the outside-in, along spacing axle sleeve 14 rebound and with first spacing groove 7/spacing groove 8 complex lock axle 15 of second, the cover is equipped with second reset spring 16 on the lock axle 15, spacing axle sleeve 14 lower part is equipped with the shoulder hole, and the lateral wall offsets on second reset spring 16 lower extreme and the shoulder hole, and second reset spring 16 upper end offsets with the spacing portion downside that is located lock axle 15, and second reset spring 16 is in at compressed state always.

The first limiting groove 7/the second limiting groove 8 are of a conical structure with a small upper part and a large lower part.

The rotor wing protective cover 11 comprises an upper protective cover 17 and a lower protective cover 18 which are arranged in parallel from top to bottom, the upper protective cover 17 and the lower protective cover 18 are both of a circular structure, a ring frame is arranged on the periphery of the circular structure, an X-shaped frame is arranged on the inner ring of the ring frame, a ring hole is arranged on the ring frame, the periphery of the lower protective cover 18 is provided with an annular frame, a similar north-shaped frame is arranged in the annular frame, two parallel edges of the similar north-shaped frame form a rotor 9 rotating shaft wire groove 20, the hollow structure can reduce the weight of the rotor protective cover 11, the upper protecting cover 17 and the lower protecting cover 18 are connected by 4 upright posts 19 which are vertically arranged, the 4 upright posts 19 are arranged on the same side of the upper protecting cover 17 and the lower protecting cover 18 and are semicircular, thereby facilitating the rotor 9 to enter from the side without the upright 19, and the upper protective cover 17, the lower protective cover 18 and the 4 upright 19 form a protective cabin of the rotor 9 together.

The middle part of the lower protective cover 18 is provided with a rotary shaft guide groove 20 of the rotary wing 9.

The utility model discloses a theory of operation: when the unmanned aerial vehicle has a fault and falls and needs protection, namely the process from attached drawing 3 to attached drawing 1, a distance sensor on the unmanned aerial vehicle detects that the distance is 1m from the ground and sends a control instruction to a controller of a magnetic coil winding 13, the controller energizes the magnetic coil winding 13 for one second, the magnetic coil winding 13 is energized to generate ampere force to drive an inner lock shaft 15 to overcome a second reset spring 16 to move downwards, then the lock shaft 15 is separated from a second limit groove 8, the first reset spring 4 is always in a stretched state, then the first reset spring 4 drives a contraction arm 2 to move inwards, when the right side of a first limit part 5 is abutted against the right end of a cantilever 1, the contraction arm 2 stops moving inwards, at the moment, the first limit groove 7 corresponds to the position of the lock shaft 15, the second reset spring 16 is always in a compressed state, then the second reset spring 16 pushes the lock shaft 15 upwards to be inserted into the first limit groove 7, the telescopic arm 2 is locked in the pipe cavity of the cantilever 1, and meanwhile, the rotor wing 9 enters the protection bin of the rotor wing protection cover 11 along the wire groove 20 under the driving of the telescopic arm 1.

Although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments or portions thereof without departing from the spirit and scope of the invention.

Claims

1. An unmanned aerial vehicle protection structure is characterized by comprising a cantilever (1), wherein the cantilever (1) is of a tubular structure, a telescopic arm (2) capable of moving left and right is inserted in a tube cavity of the cantilever (1), a section of spring cavity (3) is transversely arranged in the middle of the tube cavity, a first reset spring (4) sleeved outside the telescopic arm (2) is arranged in the spring cavity (3), a first limiting part (5) abutted against the left end of the cantilever (1) and a second limiting part (6) abutted against the left side wall of the spring cavity (3) are arranged outside the telescopic arm (2), the left end of the first reset spring (4) is fixed with the right side of the second limiting part (6), the right end of the first reset spring (4) is fixed with the right side wall of the spring cavity (3), a first limiting groove (7) and a second limiting groove (8) are arranged between the first limiting part (5) and the second limiting part (6) on the lower side of the telescopic arm (2), the upper side wall of the left end of the telescopic arm (2) is provided with a rotor wing (9) through a vertically arranged motor, and the upper side wall of the left end of the cantilever (1) is provided with a rotor wing protective cover (11) extending leftwards through a vertically arranged support rod (10);

the utility model discloses a cantilever, including cantilever (1), the left end of cantilever (1) lower lateral wall is vertical to be equipped with mounting hole (12) of upper end and cantilever (1) lumen intercommunication, be equipped with magnetic coil winding (13), spacing axle sleeve (14) in proper order in mounting hole (12), along spacing axle sleeve (14) rebound and with first spacing groove (7)/spacing groove (8) complex lock axle (15), the cover is equipped with second reset spring (16) on lock axle (15).

2. An unmanned aerial vehicle protection architecture according to claim 1, wherein: the first limiting groove (7)/the second limiting groove (8) is of a conical structure with a small upper part and a large lower part.

3. An unmanned aerial vehicle protection architecture according to claim 1, wherein: rotor protection casing (11) are including last protective cover (17) and lower protective cover (18) of upper and lower parallel arrangement, it links to each other with 4 stand (19) through vertical arrangement to go up protective cover (17) and lower protective cover (18), it forms rotor (9) protection storehouse together to go up protective cover (17), lower protective cover (18), 4 stand (19).

4. An unmanned aerial vehicle protection architecture according to claim 3, wherein: the middle part of the lower protective cover (18) is provided with a rotor wing (9) rotating shaft guide groove (20).