CN210175103U

CN210175103U - Unmanned plane

Info

Publication number: CN210175103U
Application number: CN201920633671.XU
Authority: CN
Inventors: Dingfeng Xiao; 肖锭锋; Jianbing He; 何建兵
Original assignee: Guangzhou Xaircraft Technology Co Ltd
Current assignee: Guangzhou Xaircraft Technology Co Ltd
Priority date: 2019-04-30
Filing date: 2019-04-30
Publication date: 2020-03-24
Anticipated expiration: 2029-04-30

Abstract

The utility model discloses an unmanned aerial vehicle, include: fuselage, a plurality of horn and power device. The fuselage includes the fixed frame that a plurality of intervals set up, fixed frame is including the first sub-fixed frame that links to each other and the sub-fixed frame of second, inject the assembly space between first sub-fixed frame and the sub-fixed frame of second and dodge the space and the first space of dodging and the second of size difference in the up-down direction, the radial relative both sides of every horn are equipped with first connection lug and the second connection lug of size difference in the up-down direction respectively, the first end cooperation of horn is in the assembly space of fixed frame, first connection lug holds in first dodging the space or passes first dodging the space along the axial, the second is connected the lug and is held in the second dodges the space or passes the second along the axial and dodges the space. According to the utility model discloses an unmanned aerial vehicle can realize the accurate assembly of horn, guarantees unmanned aerial vehicle normal use.

Description

Unmanned plane

Technical Field

The utility model belongs to the technical field of the aircraft and specifically relates to an unmanned aerial vehicle is related to.

Background

In recent years, along with the development of unmanned aerial vehicles, the unmanned aerial vehicles attract attention in many ways due to the advantages of flexibility, quick response, unmanned flight, low operation requirement and the like, and are applied to multiple fields such as agriculture and exploration.

Generally, a drone includes a fuselage, a plurality of arms (four, six, or more) connected to the fuselage, a power device provided on the arms for driving the drone to fly, and a control system for controlling the drone. Unmanned aerial vehicle's horn can be usually through dismouting structure dismouting to reduce its space that occupies, convenience of customers carries and transports. In the related art, due to the fact that the disassembly and assembly structure of the horn is unreasonable in design, a user may mistakenly assemble each horn in actual use, and then use of the aircraft is affected, and even serious accidents are caused.

SUMMERY OF THE UTILITY MODEL

The utility model discloses aim at solving one of the technical problem that exists among the prior art at least. Therefore, an object of the utility model is to provide an unmanned aerial vehicle, this unmanned aerial vehicle can prevent that the horn from the wrong dress, realizes unmanned aerial vehicle's accurate assembly of horn, guarantees unmanned aerial vehicle normal use and work.

According to the utility model discloses unmanned aerial vehicle, include: the machine body comprises a plurality of fixed frames arranged at intervals, the fixed frames comprise a first sub-fixed frame and a second sub-fixed frame which are connected, the first sub-fixing frame includes a fixing frame main body having a first fitting groove opened upward, the second sub-fixing frame is provided with a second assembling groove which is opened downwards, the fixing frame main body is provided with a first upper end surface and a second upper end surface which are oppositely arranged at the left and the right and face upwards, the second sub-fixing frame is provided with a first lower end surface and a second lower end surface which are oppositely arranged at the left and the right and face downwards, the first upper end surface and the first lower end surface are opposite in the up-down direction and are spaced apart to define a first avoidance space, the second upper end surface and the second lower end surface are opposite in the up-down direction and are spaced apart to define a second avoidance space, the size of the first avoidance space in the vertical direction is different from the size of the second avoidance space in the vertical direction; the machine arms are arranged at intervals along the circumferential direction of the machine body, the number of the machine arms is the same as that of the fixed frames and corresponds to that of the fixed frames one by one, the two opposite sides in the radial direction of each machine arm are respectively provided with a first connecting lug and a second connecting lug, the first connecting lug and the second connecting lug have different dimensions in the up-down direction, the first end of each of the arms is fitted in a fitting space defined by the first fitting groove and the second fitting groove of the corresponding fixing frame, the first connecting lug is suitable for being accommodated in the first avoidance space or is suitable for axially penetrating through the first avoidance space, the second connecting lug is suitable for being accommodated in the second avoiding space or is suitable for axially penetrating through the second avoiding space, the first connecting lug and the second connecting lug are connected with the first sub-fixing frame; the power devices are used for providing flight lift force, the number of the power devices is the same as that of the horn arms, the power devices correspond to the horn arms one by one, and each power device is connected to the second end of the corresponding horn arm.

According to the utility model discloses unmanned aerial vehicle, be provided with a plurality of fixed frames that are used for connecting the horn on the fuselage, set to the structure including first sub-fixed frame and the sub-fixed frame of second through the structure with every fixed frame, and make first up end of first sub-fixed frame and the first terminal surface of the sub-fixed frame of second prescribe a limit to the first space of dodging, the second of the second up end of first sub-fixed frame and the second of the sub-fixed frame lower terminal surface prescribe a limit to the second and dodge the space, through making first dodge space and second dodge the space size difference in upper and lower direction, first connection lug on the horn and second connection lug are different in size in upper and lower direction and make first connection lug be greater than the size of second dodge space in upper and lower direction, when connecting horn and fixed frame, because first connection lug is suitable for holding in first dodge space or is suitable for passing first dodge space and second connection lug along the axial Be suitable for to hold in the second dodges the space or be suitable for and pass the second along the axial and dodge the space, if the phenomenon that the horn misloading can appear unable assembly to can prevent the horn misloading, realize unmanned aerial vehicle's horn accurate assembly, guarantee unmanned aerial vehicle normal use and work.

According to some embodiments of the invention, the first upper end face and the second upper end face are located at the same horizontal plane, the first lower end face is higher than the second lower end face.

According to some embodiments of the utility model, the cover is equipped with at least one installation lantern ring on the horn, every the radial relative both sides of the installation lantern ring are formed with respectively first connecting lug the second connecting lug, the mirror symmetry structure is personally submitted about first reference to the installation lantern ring, first reference surface is for crossing the horizontal plane at the center of the installation lantern ring.

According to some optional embodiments of the utility model, the installation lantern ring is for following two that the axial interval of horn set up, the axial both ends of first assembly groove are formed with curved cooperation portion respectively, two the lower part of installation lantern ring respectively with two the cooperation portion cooperation, wherein keep away from the second end of horn be formed with spacing arch on the cooperation portion, the terminal surface of the first end of horn with spacing protruding butt.

According to some optional embodiments of the present invention, each of the mounting collar the up end of first connecting lug with the up end of second connecting lug all lies in the first plane, every the mounting collar the down end of first connecting lug with the down end of second connecting lug all lies in the second plane, the first plane with first contained angle has between the first reference surface, the second plane with second contained angle has between the first reference surface, first contained angle with the second contained angle is the same.

According to some optional embodiments of the utility model, the unmanned aerial vehicle includes: the clamping piece, the clamping piece is the arc that the opening faced down, the clamping piece centre gripping is in the upper portion of the installation lantern ring, just the clamping piece with the sub-fixed frame of second sets up side by side in the axial direction, first connecting lug is suitable for to pass along the axial first space of dodging, the second connecting lug is suitable for to pass along the axial the space is dodged to the second, the opening both ends of clamping piece are first exposed core and second exposed core respectively, first exposed core end is supported first connecting lug on and with first connecting lug links to each other, the second exposed core end support on the second connecting lug and with the second connecting lug links to each other.

Optionally, the clamping piece is in a mirror symmetry structure with respect to a second reference plane, and the second reference plane is perpendicular to the central axis of the horn.

Optionally, an end surface of the first clamping end abutting against the upper end surface of the first connecting lug is a first clamping end surface, an end surface of the second clamping end abutting against the upper end surface of the second connecting lug is a second clamping end surface, and the first clamping end surface and the second clamping end surface are both located in a third plane.

Optionally, at least one of the first clamping end face and the second clamping end face is formed with an anti-slip protrusion for limiting the first connecting lug and/or the second connecting lug, and the anti-slip protrusion is located on the outer peripheral side of the first connecting lug and/or the second connecting lug to limit the horn in the axial direction.

Optionally, the first sub-fixing frame comprises: the first limiting part is arranged on the first upper end face and is positioned at one end, far away from the first assembling groove, of the first upper end face; the second limiting part is arranged on the second upper end face and is positioned at one end, far away from the first assembling groove, of the second upper end face; the fixed frame of second with the holder all is located first spacing portion with between the spacing portion of second, first spacing portion with the spacing portion of second is formed with first spacing groove, second spacing groove on the wall each other respectively, first exposed core with the second exposed core holds respectively first spacing groove the spacing inslot of second, first exposed core with first spacing groove phase-match, the second exposed core with the second spacing groove phase-match, first spacing groove with the specification of second spacing groove is different.

Furthermore, the cross section of the first limiting groove is a right-angle rectangle, and the cross section of the second limiting groove is a rounded rectangle.

According to some embodiments of the present invention, the first sub-fixing frame comprises: the first limiting part is arranged on the first upper end face and is positioned at one end, far away from the first assembling groove, of the first upper end face; the second limiting part is arranged on the second upper end face and is positioned at one end, far away from the first assembling groove, of the second upper end face; the fixed frame of second is located first spacing portion with between the spacing portion of second, the relative both ends of the fixed frame of second are formed with first installation lug, second installation lug respectively, the top of first spacing portion is formed with first positioning groove, first installation lug cooperation is in the first positioning groove and with first spacing portion links to each other, the top of the spacing portion of second is formed with second positioning groove, second installation lug cooperation is in the second positioning groove and with the spacing portion of second links to each other.

Optionally, the first mounting lug is matched with the first positioning groove, the second mounting lug is matched with the second positioning groove, and the specifications of the first positioning groove and the second positioning groove are different.

According to some embodiments of the present invention, the second sub-mount is a mirror symmetric structure with respect to a third reference plane perpendicular to the central axis of the horn.

According to the utility model discloses a some embodiments, it is a plurality of fixed frame falls into at least two sets ofly, and every group includes two fixed frame and every group are two fixed frame passes through the tie-beam and links to each other, every group two contained angle has between the central axis of fixed frame, and every group two fixed frame about the central line symmetry of tie-beam sets up.

Additional aspects and advantages of the invention will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the invention.

Drawings

The above and/or additional aspects and advantages of the present invention will become apparent and readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings of which:

fig. 1 is a perspective view of an unmanned aerial vehicle according to an embodiment of the present invention;

figure 2 is a perspective view of another angle of the drone in figure 1;

fig. 3 is a partial block diagram of the drone of fig. 1;

figure 4 is a perspective view of the top panel of the drone in figure 1;

fig. 5 is a perspective view of the base plate of the drone in fig. 1;

figure 6 is a schematic view of the mounting frame and the boom of the drone in figure 1 assembled;

figure 7 is a perspective view of the connection of the first sub-fixed frame of each group of fixed frames of the drone in figure 1;

FIG. 8 is an enlarged view at A in FIG. 7;

figure 9 is a schematic view of the connection of a first sub-fixed frame of one of the groups of fixed frames of the drone in figure 1;

figure 10 is a schematic view of the connection of a first sub-fixed frame of another set of fixed frames of the drone in figure 1;

figure 11 is a perspective view of the horn of the drone in figure 1;

figure 12 is a perspective view of a second sub-fixed frame of the drone in figure 1;

fig. 13 is a front view of the second sub-fixing frame of fig. 12;

figure 14 is a perspective view of a mounting collar of the horn of the drone in figure 1;

FIG. 15 is a front view of the mounting collar of FIG. 14;

figure 16 is a perspective view of a clamp of the drone in figure 1;

FIG. 17 is a cross-sectional view of the clamp of FIG. 16;

fig. 18 is a perspective view of a mounting collar of a drone according to another embodiment of the present invention.

Reference numerals:

a drone 100;

a body 20;

a housing assembly 21;

a body 22;

a fixed frame 1; a first sub-fixing frame 11; a fixed frame body 10; the first fitting groove 111; a fitting portion 112; a limit protrusion 113; a first upper end face 11 a; a second upper end surface 11 b; a first stopper 114; a first limit groove 1141; a first positioning groove 1142; a second stopper portion 115; a second limit groove 1151; a second positioning groove 1152; a first lightening slot 116; a second sub-fixing frame 12; the second fitting groove 121; a first lower end surface 12 a; a second lower end surface 12 b; a second lightening slot 122; first mounting lugs 123; a second mounting lug 124;

a connecting beam 23;

a top plate 24; a first fixing hole 241; a bottom plate 25; the second fixing hole 251;

a mounting frame 26;

mounting a lantern ring 3; a circular arc segment 31; a planar section 32; a transition section 33; the first connecting lugs 34; the second connecting lug 35;

a clamp 4; a first clamping end 41; a first clamping end surface 411; a second clamping end 42; a second clamping end surface 421; the retaining projection 43; a third lightening slot 44;

a horn 5;

a power plant 6;

a landing gear 7; a liquid storage container 8; and a battery 9.

Detailed Description

Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are exemplary only for the purpose of explaining the present invention, and should not be construed as limiting the present invention.

An unmanned aerial vehicle 100 according to an embodiment of the invention is described below with reference to fig. 1-18. This unmanned aerial vehicle 100 can be used for carrying out operations such as pesticide spraying or moisture sprinkling irrigation to crops in the agro-farming industry. Of course, this unmanned aerial vehicle 100 also can be used for spraying of fire extinguishing fluid in the forest fire, take photo by plane, other fields such as electric power inspection, environmental monitoring, forest fire prevention and disaster patrol.

As shown in fig. 1-18, according to the utility model discloses unmanned aerial vehicle 100 includes: fuselage 20, undercarriage 7, liquid storage container 8, battery 9, horn 5, power device 6 for providing flight lift and the controlling means that is used for controlling unmanned aerial vehicle 100 work.

Referring to fig. 1 to 7, the plurality of booms 5 are arranged at intervals along the circumferential direction of the body 20, the body 20 includes a plurality of fixed frames 1 arranged at intervals, the fixed frames 1 include first sub-fixed frames 11 and second sub-fixed frames 12 connected in the up-down direction, the number of the booms 5 is the same as the number of the fixed frames 1, and the booms 5 are connected and fixed to the body 20 through the corresponding fixed frames 1. The number of the power devices 6 is the same as that of the horn 5, and the power devices 6 correspond to the horn 5 one by one, and each power device 6 is connected to the second end of the corresponding horn 5. Undercarriage 7 is fixed in the stability of fuselage 20 below in order to guarantee that unmanned aerial vehicle 100 takes off and lands, and liquid storage container 8 is carried and is used for the splendid attire to spray or the article of waiting to transport on the fuselage 20, and battery 9 is fixed in on the fuselage 20 and is used for controlling unmanned aerial vehicle 100's work (for example can control unmanned aerial vehicle 100's flight posture) on the fuselage 20 for power device 6 provides power.

Alternatively, the number of the horn 5 may be four, and the four horns 5 are symmetrically distributed on both sides of the central axis (refer to the X axis in fig. 2) of the body 20. The two front booms 5 have the same length, the two rear booms 5 have the same length, and the two rear booms 5 have a length greater than the two front booms 5.

Optionally, when the booms 5 are four and four booms 5 are symmetrically distributed on two sides of the central axis of the main body 20, the fixing frames 1 are four and are divided into two groups, two groups of fixing frames 1 are respectively located on the front side and the rear side of the main body 20, each group includes two fixing frames 1 and the first sub-fixing frames 11 of the two fixing frames 1 of each group are connected through the connecting beam 23, an included angle is formed between the central axes of the two fixing frames 1 of each group, for example, the included angle between the two fixing frames 1 located on the front side may be 110 °, and the included angle between the two fixing frames 1 located on the rear side may be 70 °. And each set of two fixed frames 1 is arranged symmetrically with respect to the centre line of the connecting beam 23 (see X-axis in figure 2). Thereby, make the structure of unmanned aerial vehicle 100 balanced.

With continued reference to fig. 1 to 7, the main body 20 includes a housing assembly 21, a main body 22 and a mounting frame 26 sequentially arranged along the front-rear direction, wherein the main body 22 includes a plurality of fixed frames 1 arranged along the circumferential direction at intervals, and a top plate 24 and a bottom plate 25 arranged on the upper and lower opposite sides of the first sub-fixed frame 11, the top plate 24 and the bottom plate 25 are used for carrying devices such as a control device, and the liquid storage container 8 and the battery 9 are adapted to be fixed in the mounting frame 26. The top plate 24 has a plurality of first positioning holes and first fixing holes 241, and the bottom plate 25 has a plurality of second positioning holes and second fixing holes 251. The first sub-fixing frame 11 is formed with a first positioning post matched with the first positioning hole and a third fixing hole corresponding to the first fixing hole 241, and the first sub-fixing frame 11 is further formed with a second positioning post matched with the second positioning hole and a fourth fixing hole corresponding to the second fixing hole 251. Therefore, the top plate 24 can be connected with the first sub-fixing frame 11 by the matching of the first positioning hole and the first positioning column and the connection of the first fixing hole 241 and the third fixing hole by the fastener; the bottom plate 25 can be connected to the first sub-fixing frame 11 by fitting the second positioning hole with the second positioning post and connecting the second fixing hole 251 and the fourth fixing hole with the fastening member.

The first sub-frame 11 includes a frame body 10, the frame body 10 having a first fitting groove 111 opened toward the upper side, the second sub-frame 12 having a second fitting groove 121 opened toward the lower side, and after the first sub-frame 11 and the second sub-frame 12 are coupled, the first fitting groove 111 and the second fitting groove 121 together constitute a fitting space for fitting the first end of the horn 5. The frame body 10 has a first upper end surface 11a and a second upper end surface 11b facing upward and facing left and right, and the second sub-frame 12 has a first lower end surface 12a and a second lower end surface 12b facing downward and facing left and right. The first upper end surface 11a and the first lower end surface 12a are opposite and spaced apart in the up-down direction to define a first avoidance space, the second upper end surface 11b and the second lower end surface 12b are opposite and spaced apart in the up-down direction to define a second avoidance space, and the size of the first avoidance space in the up-down direction is different from the size of the second avoidance space in the up-down direction. For example, the size of the first avoidance space in the vertical direction may be larger than the size of the second avoidance space in the vertical direction, or the size of the first avoidance space in the vertical direction may be smaller than the size of the second avoidance space in the vertical direction.

In the present invention, "a plurality" means two or more.

The diametrically opposite sides of each horn 5 are provided with a first engaging lug 34 and a second engaging lug 35, respectively, and the dimension of the first engaging lug 34 in the up-down direction and the dimension of the second engaging lug 35 in the up-down direction are different. For example, the dimension of the first connecting lug 34 in the up-down direction may be larger than the dimension of the second connecting lug 35 in the up-down direction, or the dimension of the first connecting lug 34 in the up-down direction may be smaller than the dimension of the second connecting lug 35 in the up-down direction. The first end of each horn 5 is fitted in the fitting space defined by the first and second

fitting grooves

111 and 121 of the corresponding fixing frame 1.

When the first end of each horn 5 is fitted in the fitting space of the corresponding fixed frame 1, the first connecting lug 34 is adapted to be received in or to pass through a first avoiding space in an axial direction (the axial direction refers to a direction of a central axis of the corresponding horn 5), and a dimension of the first connecting lug 34 in the up-down direction matches a dimension of the first avoiding space in the up-down direction; the second connecting lug 35 is adapted to be received in or adapted to pass through the second avoiding space in an axial direction (the axial direction refers to a direction of a central axis of the corresponding horn 5), and a dimension of the second connecting lug 35 in the up-down direction matches a dimension of the second avoiding space in the up-down direction. Wherein, the first and second connecting

lugs

34 and 35 are connected to the first sub-frame 11.

Therefore, when the arm 5 is fixedly connected to the corresponding fixed frame 1, the first sub-fixed frame 11 and the second sub-fixed frame 12 are connected, the first sub-fixed frame 11 and the second sub-fixed frame 12 may be detachably connected, and for example, the first sub-fixed frame 11 and the second sub-fixed frame 12 may be connected by a fastening member (for example, a screw, a bolt, or the like). The fixed frame 1 is constructed after the first and second

sub-fixed frames

11 and 12 are coupled, and at this time, the first fitting groove 111 of the first sub-fixed frame 11 and the second fitting groove 121 of the second sub-fixed frame 12 together constitute a fitting space for receiving the first end of the horn 5.

The first end of the horn 5 projects into this fitting space, and the first attachment lug 34 can be accommodated in the first escape space and the second attachment lug 35 can be accommodated in the second escape space after the horn 5 is fitted in place.

If the horn 5 is erroneously mounted, the directions of the first connecting lug 34 and the second connecting lug 35 are reversed, if the dimension of the first connecting lug 34 in the up-down direction is larger than the dimension of the second connecting lug 35 in the up-down direction and the dimension of the first escape space in the up-down direction is larger than the dimension of the second escape space in the up-down direction, since the dimension of the first connecting lug 34 in the up-down direction is larger than the dimension of the second avoiding space in the up-down direction, the first connecting lug 34 cannot be accommodated into the second avoiding space at this time, causing fitting interference, thereby, the operator can be reminded to adjust the horn 5 to the correct fitting direction so that the first engaging lug 34 is received in the first escape space and the second engaging lug 35 is received in the second escape space, then, the first and second connecting

lugs

34 and 35 are connected to the first sub-mount frame 11, so that the horn 5 can be fixed to the body 20.

If the horn 5 is erroneously mounted, the directions of the first connecting lug 34 and the second connecting lug 35 are reversed, if the dimension of the first connecting lug 34 in the up-down direction is smaller than the dimension of the second connecting lug 35 in the up-down direction and the dimension of the first escape space in the up-down direction is smaller than the dimension of the second escape space in the up-down direction, since the dimension of the second connecting lug 35 in the up-down direction is larger than the dimension of the first avoiding space in the up-down direction, the second connecting lug 35 cannot be accommodated into the first avoiding space at this time, causing fitting interference, thereby, the operator can be reminded to adjust the horn 5 to the correct fitting direction so that the first engaging lug 34 is received in the first escape space and the second engaging lug 35 is received in the second escape space, then, the first and second connecting

lugs

Or, in the process that the first end of the horn 5 extends into the assembly space, the first connecting lug 34 needs to axially penetrate through the first avoiding space to a set position, and meanwhile, the second connecting lug 35 axially penetrates through the second avoiding space to the set position, and then the first connecting lug 34 and the second connecting lug 35 are both connected with the first sub-fixing frame 11, so that the horn 5 can be installed and fixed on the body 20.

If an assembly error occurs in the horn 5, the directions of the first connecting lug 34 and the second connecting lug 35 are reversed, if the dimension of the first connecting lug 34 in the vertical direction is larger than the dimension of the second connecting lug 35 in the vertical direction and the dimension of the first avoidance space in the vertical direction is larger than the dimension of the second avoidance space in the vertical direction, because the dimension of the first connecting lug 34 in the vertical direction is larger than the dimension of the second avoidance space in the vertical direction, the first connecting lug 34 cannot pass through the second avoidance space at this time, so that assembly interference is caused, and an operator can be reminded to adjust the horn 5 to a correct assembly direction.

If an assembly error occurs in the horn 5, the directions of the first connecting lug 34 and the second connecting lug 35 are reversed, if the dimension of the first connecting lug 34 in the vertical direction is smaller than the dimension of the second connecting lug 35 in the vertical direction and the dimension of the first avoidance space in the vertical direction is smaller than the dimension of the second avoidance space in the vertical direction, because the dimension of the second connecting lug 35 in the vertical direction is larger than the dimension of the first avoidance space in the vertical direction, the second connecting lug 35 cannot pass through the first avoidance space at this time, so that assembly interference is caused, and an operator can be reminded to adjust the horn 5 to a correct assembly direction.

When the horn 5 needs to be detached from the body 20, the connection relationship between the horn 5 and the first sub-fixing frame 11 can be released, and the horn 5 can be pulled out from the assembly space of the fixing frame 1, so that the horn 5 can be conveniently detached, and the reliable connection between the horn 5 and the body 20 can be realized.

Alternatively, referring to fig. 11, each horn 5 may include a cylindrical hollow rod, which may be an aluminum alloy tube wrapped with a carbon fiber material, a plastic tube made of plastic, or a carbon tube made of a carbon fiber material.

Alternatively, referring to fig. 8, a plurality of first lightening grooves 116 are formed in the first sub-fixing frame 11, whereby the mass of the first sub-fixing frame 11 can be lightened while the structural strength of the first sub-fixing frame 11 is ensured, so that the weight of the whole machine can be reduced, and the power consumption can be reduced.

Alternatively, referring to fig. 12, a plurality of second lightening grooves 122 are formed in the second sub-fixing frame 12, so that the mass of the second sub-fixing frame 12 can be lightened while the structural strength of the second sub-fixing frame 12 is ensured, thereby reducing the weight of the whole machine and reducing energy consumption.

According to the unmanned aerial vehicle 100 of the embodiment of the present invention, the body 20 is provided with a plurality of fixed frames 1 for connecting the horn 5, by configuring the structure of each fixed frame 1 to include the first sub-fixed frame 11 and the second sub-fixed frame 12, and by configuring the first upper end surface 11a of the first sub-fixed frame 11 and the first lower end surface 12a of the second sub-fixed frame 12 to define the first avoidance space, and the second upper end surface 11b of the first sub-fixed frame 11 and the second lower end surface 12b of the second sub-fixed frame 12 to define the second avoidance space, by configuring the first avoidance space and the second avoidance space to have different sizes in the up-down direction, configuring the first connecting lugs 34 and the second connecting lugs 35 on the horn 5 to have different sizes in the up-down direction, and configuring the first connecting lugs 34 to have a size in the up-down direction larger than the size in the second avoidance space in the up-down direction, when connecting horn 5 with fixed frame 1, because first connecting lug 34 is suitable for and holds in first dodging the space or be suitable for to pass first dodging the space along the axial and second connecting lug 35 is suitable for and holds in the second dodges the space or be suitable for and pass the second along the axial and dodge the space, if horn 5 mistake can appear unable phenomenon of assembling, thereby can prevent horn 5 mistake, realize unmanned aerial vehicle 100's horn 5 accurate assembly, guarantee unmanned aerial vehicle 100 normal use and work.

According to some embodiments of the present invention, referring to fig. 7 and 8, the first upper end surface 11a and the second upper end surface 11b are located at the same horizontal plane, and the first lower end surface 12a is higher than the second lower end surface 12 b. Therefore, the size of the first avoidance space in the vertical direction can be conveniently different from the size of the second avoidance space in the vertical direction, and the size of the first avoidance space in the vertical direction is larger than that of the second avoidance space in the vertical direction.

According to some embodiments of the utility model, referring to fig. 11, 14, 15 and 18, the cover is equipped with at least one installation lantern ring 3 on the horn 5, and the installation lantern ring 3 can be one, and the installation lantern ring 3 also can be a plurality of, is connected fixedly through the mode of gluing between the periphery wall of installation lantern ring 3 and horn 5. The radial opposite sides of every installation lantern ring 3 are formed with first connection lug 34, second connection lug 35 respectively, through the installation lantern ring 3 that sets up, and make first connection lug 34 and second connection lug 35 form on installation lantern ring 3, make things convenient for the connection of horn 5 fixed, and can reduce or avoid horn 5 and fixed frame 1 direct contact and the wearing and tearing that cause horn 5.

The mounting collar 3 has a mirror-symmetrical structure with respect to a first reference plane (see Y-plane in fig. 15), which is a horizontal plane passing through the center of the mounting collar 3. From this, through setting up the installation lantern ring 3 and personally submitting mirror symmetry structure about first reference, can improve the compatibility that the installation lantern ring 3 used, for example when the horn 5 in the installation different position, when the installation lantern ring 3 is used in the installation of one of them horn 5, can use the installation of the horn 5 in another position after can rotating 180 along the horizontal direction with the installation lantern ring 3, reduce the kind of unmanned aerial vehicle 100 spare part, and reduce cost, and can save the work load of distinguishing and categorizing the installation lantern ring 3 of different specifications when installing horn 5, and can not appear because the installation wrong problem that the installation lantern ring 3 use mismatch leads to.

Alternatively, referring to fig. 14, 15 and 18, the outer circumferential surface of the mounting collar 3 includes two circular arc sections 31 disposed opposite to each other from top to bottom and two plane sections 32 disposed opposite to each other from left to right, each plane section 32 is connected to two ends of the two circular arc sections 31 located on the same side, a transition section 33 is disposed between each plane section 32 and each circular arc section 31, each transition section 33 may be composed of a plurality of facets, and the transition section 33 may also be composed of a circular arc surface. Wherein the first connecting lug 34 and the second connecting lug 35 are respectively connected to the two plane sections 32. Therefore, when the mounting collar 3 is fitted over the horn 5, the mounting collar 3 can be prevented from rotating relative to the horn 5.

According to some alternative embodiments of the present invention, referring to fig. 7, 8, 11, 14 and 15, the mounting collar 3 is two spaced apart along the axial direction of the horn 5, and a first connecting lug 34 and a second connecting lug 35 are formed on two radially opposite sides of each mounting collar 3. The two axial ends of the first assembling groove 111 are respectively formed with an arc-shaped matching part 112, and the lower parts of the two mounting lantern rings 3 are respectively matched with the two matching parts 112, so that the horn 5 can be prevented from being directly contacted with the first sub-fixing frame 11 to protect the horn 5 through the matching of the mounting lantern rings 3 and the matching parts 112, and the horn 5 can be stably supported on the first sub-fixing frame 11. Wherein, a limit bulge 113 is formed on the matching part 112 far away from the second end of the horn 5, and the end surface of the first end of the horn 5 is abutted against the limit bulge 113. From this, when assembling horn 5 to the fitting space in the fixed frame 1 in, when stretching into the first end of horn 5 to this fitting space in, through above-mentioned spacing effect of spacing arch 113, after horn 5 assembles the target in place, the terminal surface and the spacing arch 113 butt of the first end of horn 5, the first end of horn 5 can't continue to stretch out outside the fitting space again to can guarantee that the first end of horn 5 accurately assembles the target in place fast.

In another embodiment, referring to fig. 18, the number of the mounting collar 3 may be one, two first connecting lugs 34 and two second connecting lugs 35 are respectively formed on two diametrically opposite sides of the mounting collar 3, and the axial length of the mounting collar 3 may be substantially the same as the axial length of the fitting space of the stationary frame 1.

According to some optional embodiments of the present invention, referring to fig. 11, 14, 15 and 18, each mounting collar 3 is a mirror-symmetric structure with respect to the first reference surface, the upper end surface of the first connecting lug 34 and the upper end surface of the second connecting lug 35 of each mounting collar 3 are both located in a first plane, the lower end surface of the first connecting lug 34 and the lower end surface of the second connecting lug 35 of each mounting collar 3 are both located in a second plane, the first plane and the first reference surface have a first included angle therebetween, the second plane and the first reference surface have a second included angle therebetween, the first included angle and the second included angle are the same, thereby, by setting each mounting collar 3 to this structure, the compatibility of the use of the mounting collar 3 may be further improved, and, after assembling the arm 5 to the fixed frame 1 of the fuselage 20, the central axis of the motor in the power device 6 mounted on the arm 5 may be made to have a vertical angle therebetween, for example, when the first α and the second α are both 2 °, the central axis of the motor in the power device 6 and the vertical direction may also be made to meet the requirement that the central axis of the unmanned aerial vehicle is set to be a horizontal angle (i.e., the central axis of the unmanned aerial vehicle 88 is made to be a horizontal angle, i.e., the central axis of the unmanned.

According to some optional embodiments of the present invention, referring to fig. 7, 8, 16 and 17 in combination with fig. 11, 14 and 15, the drone 100 comprises: the clamping piece 4, clamping piece 4 are the arc that the opening is faced down, and clamping piece 4 centre gripping is in the upper portion of the installation lantern ring 3, and clamping piece 4 sets up side by side with the fixed frame 12 of second sub in the axial direction. The first connecting lug 34 is adapted to axially pass through the first avoiding space, the second connecting lug 35 is adapted to axially pass through the second avoiding space, the two open ends of the clamping member 4 are respectively a first clamping end 41 and a second clamping end 42, the first clamping end 41 abuts against the first connecting lug 34 and is connected with the first connecting lug 34, and the second clamping end 42 abuts against the second connecting lug 35 and is connected with the second connecting lug 35. Thus, the horn 5 can be more reliably connected to the fixed frame 1 of the body 20 by the provided clip 4. The number of the clamping pieces 4 is the same as that of the first connecting lugs 34 or the second connecting lugs 35, and the first connecting lugs 34 and the second connecting lugs 35 in each pair correspond to one clamping piece 4.

For example, when the unmanned aerial vehicle 100 includes the clip 4, after the first end of the arm 5 is inserted into the mounting space of the fixed frame 1 to a predetermined position, for example, when the end surface of the first end of the arm 5 abuts against the stopper protrusion 113 on the engagement portion 112, the arm 5 is mounted in place. At this time, the clamping member 4 may be clamped at the upper portion of the mounting collar 3, the first clamping end 41 of the clamping member 4 is supported on the first connecting lug 34, the second clamping end 42 of the clamping member 4 is supported on the second connecting lug 35, and the machine arm 5 may be mounted and fixed on the fixed frame 1 by the fasteners passing through the first clamping end 41, the first connecting lug 34 and the first sub-fixed frame 11 and the fasteners passing through the second clamping end 42, the second connecting lug 35 and the first sub-fixed frame 11. When the horn 5 needs to be detached from the body 20, the fasteners penetrating through the first connecting lug 34 and the second connecting lug 35 are detached, the clamping piece 4 and the horn 5 are disconnected from the first sub-fixing frame 11, the clamping piece 4 can be detached from the mounting sleeve ring 3, the first end of the horn 5 is axially drawn out from the mounting space of the fixing frame 1, and therefore the horn 5 can be detached from the body 20 conveniently and quickly.

Alternatively, referring to fig. 16, a plurality of third lightening grooves 44 are formed on the clamping member 4, so that the mass of the clamping member 4 can be reduced while the structural strength of the clamping member 4 is ensured, thereby reducing the weight of the whole machine and reducing the energy consumption.

Alternatively, referring to fig. 16 and 17 in combination with fig. 7, 8, 11, 14 and 15, the clamp 4 may be mirror symmetrical about a second reference plane, which is perpendicular to the central axis of the horn 5. From this, through setting up holder 4 to personally submitting mirror symmetry structure about the second reference, can improve the compatibility that holder 4 used, for example when the horn 5 in the different position of installation, when holder 4 is used in the installation of one of them horn 5, can use holder 4 along the installation of the horn 5 of another position after the 180 degrees rotation of horizontal direction, reduce the kind of unmanned aerial vehicle 100 spare part, and reduce cost, and can save the work load of distinguishing and categorizing holder 4 of different specifications when installing horn 5, and can not appear because holder 4 uses the wrong installation problem that leads to of mismatching.

Alternatively, referring to fig. 16 and 17 in combination with fig. 7, 8, 11, 14 and 15, an end surface of the clamping member 4 where the first clamping end 41 abuts against the upper end surface of the first connecting lug 34 is a first clamping end surface 411, an end surface of the second clamping end 42 abuts against the upper end surface of the second connecting lug 35 is a second clamping end surface 421, and both the first clamping end surface 411 and the second clamping end surface 421 are located in the third plane. This can further improve the compatibility of the use of the clip 4. The third plane may be parallel to the first plane, and the plane where the first clamping end surface 411 and the second clamping end surface 421 are located is parallel to the plane where the upper end surface of the first connecting lug 34 and the upper end surface of the second connecting lug 35 are located, so that the first clamping end surface 411 and the upper end surface of the first connecting lug 34 realize surface-to-surface contact, and the upper end surface of the second clamping end surface 421 and the upper end surface of the second connecting lug 35 realize surface-to-surface contact, so that the clamping member 4 may be more stably connected to the first sub-fixing frame 11, and the reliability of connection between the horn 5 and the fixing frame 1 may be further improved.

Alternatively, referring to fig. 17 in combination with fig. 8, 14 and 15, at least one of the first and second clamping

end surfaces

411 and 421 of the clamping member 4 is formed with a retaining protrusion 43 for retaining the first and/or second connecting

lugs

34 and 35, and the retaining protrusion 43 is located on the outer circumferential side of the first and/or second connecting

lugs

34 and 35. At this time, the retaining protrusion 43 may define a semi-closed limiting groove with the first clamping end surface 411 and/or the second clamping end surface 421 of the clamping member 4, and the first connecting lug 34 and/or the second connecting lug 35 may be received in the limiting groove to limit the first connecting lug 34 and/or the second connecting lug 35, so as to limit the horn 5 in the axial direction. For example, the above-mentioned retaining protrusion 43 may be formed only on the first clamping end surface 411 of the clamping member 4, at this time, the retaining protrusion 43 is located on the outer peripheral side of the first connecting lug 34, in the process of installing the horn 5 in the fixed frame 1, the retaining protrusion 43 may play a role in pre-positioning the first connecting lug 34, thereby facilitating subsequent fastener connection, after the horn 5 is assembled, even if the fastener for fastening the first connecting lug 34 in the use process of the unmanned aerial vehicle 100 is loosened, the limiting effect of the retaining protrusion 43 on the horn 5 in the axial direction may prevent the horn 5 from axially moving from the fixed frame 1 or coming out from the assembly space of the fixed frame 1.

For another example, the above-mentioned anti-disengaging protrusion 43 may be formed on only the second clamping end surface 421 of the clamping member 4, at this time, the anti-disengaging protrusion 43 is located on the outer peripheral side of the second connecting lug 35, in the process of installing the horn 5 in the fixed frame 1, the anti-disengaging protrusion 43 may play a role in pre-positioning the second connecting lug 35, thereby facilitating subsequent fastener connection, after the horn 5 is assembled, even if the fastener for fastening the second connecting lug 35 in the use process of the unmanned aerial vehicle 100 is loosened, the limiting effect of the anti-disengaging protrusion 43 on the horn 5 in the axial direction may prevent the horn 5 from moving axially from the fixed frame 1 or from coming out of the assembly space of the fixed frame 1.

For example, the retaining protrusion 43 may be formed on the first clamping end surface 411 of the clamping member 4 and the retaining protrusion 43 may be formed on the second clamping end surface 421 of the clamping member 4, so that the pre-positioning function of the first connecting lug 34 and the second connecting lug 35 may be performed, and the subsequent fastening connection may be facilitated, and after the horn 5 is assembled, even if the fastening member fastening the first connecting lug 34 and the second connecting lug 35 in the using process of the unmanned aerial vehicle 100 is loosened, the limiting function of the retaining protrusion 43 on the horn 5 in the axial direction may prevent the horn 5 from moving axially from the fixing frame 1 or from coming off from the assembling space of the fixing frame 1.

In some optional embodiments of the present invention, referring to fig. 8, 16 and 17, the first sub-fixing frame 11 includes: the first limiting part 114 is arranged on the first upper end surface 11a of the fixing frame body 10 and located at one end, far away from the first assembling groove 111, of the first upper end surface 11a, the second limiting part 115 is arranged on the second upper end surface 11b of the fixing frame body 10 and located at one end, far away from the first assembling groove 111, of the second upper end surface 11b, and the second sub-fixing frame 12 and the clamping piece 4 are located between the first limiting part 114 and the second limiting part 115. The first limiting part 114 and the second limiting part 115 can limit the second sub-fixing frame 12 and the clamping piece 4, and the second sub-fixing frame 12, the clamping piece 4 and the first sub-fixing frame 11 can be conveniently installed.

The first and second limiting

grooves

1141 and 1151 are formed on the facing walls of the first and second limiting

portions

114 and 115, respectively, and the first and second clamping ends 41 and 42 are accommodated in the first and second limiting

grooves

1141 and 1151, respectively, that is, the first clamping end 41 is accommodated in the first limiting groove 1141 and the second clamping end 42 is accommodated in the second limiting groove 1151. The first clamping end 41 is matched with the first limiting groove 1141, the size and the shape of the first clamping end 41 are matched with the first limiting groove 1141, the second clamping end 42 is matched with the second limiting groove 1151, and the size and the shape of the second clamping end 42 are matched with the second limiting groove 1151, so that the first clamping end 41 can be reliably accommodated in the first limiting groove 1141, the second clamping end 42 can be reliably accommodated in the second limiting groove 1151, the further positioning effect on the clamping piece 4 can be achieved, and the guide effect on the disassembly and assembly of the clamping piece 4 can be achieved. The first and

second spacing grooves

1141 and 1151 have different specifications, and accordingly, the first and second clamping ends 41 and 42 have different specifications. It should be noted that the "specification" of the present invention includes shapes and sizes.

The first and second retaining

grooves

1141 and 1151 have different specifications, and may have only different shapes, only different sizes, or both different shapes and sizes. Therefore, when the clamping member 4 is misassembled in the direction, because the specifications of the first limiting groove 1141 and the second limiting groove 1151 are different, and accordingly, the specifications of the first clamping end 41 and the second clamping end 42 are also different, the second clamping end 42 cannot be accommodated in the first limiting groove 1141 or interfered, or the first clamping end 41 cannot be accommodated in the second limiting groove 1151 or interfered, the assembly error of an operator can be reminded, so that the clamping member 4 is adjusted to be a correct assembly position, and the clamping member 4 is guaranteed to be accurately assembled in place.

For example, in an embodiment of the present invention, referring to fig. 8, 16 and 17, the cross section of the first position-limiting groove 1141 is a right-angled rectangle, the cross section of the second position-limiting groove 1151 is a rounded rectangle, and the second position-limiting groove 1151 may be rounded on the basis of the first position-limiting groove 1141. Correspondingly, the cross section of the first clamping end 41 is a right-angled rectangle, the cross section of the second clamping end 42 is a rounded rectangle, and the second clamping end 42 may be rounded on the basis of the first clamping end 41. Therefore, the structure of the clamping piece 4 and the first sub-fixing frame 11 is simple, the processing is convenient, and meanwhile, the assembling error of the clamping piece 4 can be prevented.

For another example, in another embodiment of the present invention, the cross section of the first position-limiting groove 1141 is a rounded rectangle, the cross section of the second position-limiting groove 1151 is a right-angled rectangle, and the first position-limiting groove 1141 may be rounded on the basis of the second position-limiting groove 1151. Correspondingly, the cross section of the first clamping end 41 is a rounded rectangle, the cross section of the second clamping end 42 is a right-angled rectangle, and the first clamping end 41 may be rounded on the basis of the second clamping end 42. Therefore, the structure of the clamping piece 4 and the first sub-fixing frame 11 is simple, the processing is convenient, and meanwhile, the assembling error of the clamping piece 4 can be prevented.

According to some embodiments of the present invention, referring to fig. 8, 12 and 13, the first sub-fixing frame 11 comprises: the first limiting part 114 is arranged on the first upper end surface 11a of the fixing frame body 10 and located at one end of the first upper end surface 11a, which is far away from the first assembling groove 111, and the second limiting part 115 is arranged on the second upper end surface 11b of the fixing frame body 10 and located at one end of the second upper end surface 11b, which is far away from the first assembling groove 111, and the second sub-fixing frame 12 is located between the first limiting part 114 and the second limiting part 115. The first limiting part 114 and the second limiting part 115 can limit the second sub-fixing frame 12, and the second sub-fixing frame 12 and the first sub-fixing frame 11 can be conveniently installed.

A first mounting lug 123 and a second mounting lug 124 are respectively formed at two opposite ends of the second sub-fixing frame 12, a first positioning groove 1142 is formed at the top of the first limiting portion 114, the first mounting lug 123 is fitted in the first positioning groove 1142 and connected with the first limiting portion 114, a second positioning groove 1152 is formed at the top of the second limiting portion 115, and the second mounting lug 124 is fitted in the second positioning groove 1152 and connected with the second limiting portion 115. Therefore, the reliability of connection between the second sub-fixing frame 12 and the first sub-fixing frame 11 can be further improved, and meanwhile, when the first sub-fixing frame 11 and the second sub-fixing frame 12 are connected, pre-positioning of the second sub-fixing frame 12 can be conveniently realized through the matching of the first mounting lug 123 and the first positioning groove 1142 and the matching of the second mounting lug 124 and the second positioning groove 1152, and then the first mounting lug 123 and the second mounting lug 124 are connected with the first sub-fixing frame 11 through fasteners.

Alternatively, first mounting lug 123 mates with first detent 1142 in shape and size, second mounting lug 124 mates with second detent 1152 in shape and size, and second mounting lug 124 mates with second detent 1152 in shape and size. As a result, first mounting lug 123 may be securely received within first detent 1142 and second mounting lug 124 may be securely received within second detent 1152.

The first positioning groove 1142 and the second positioning groove 1152 have different specifications, and may have different shapes, sizes, or both. Accordingly, the first and second mounting lugs 123 and 124 are also different in size. Therefore, when the orientation of the second sub-fixing frame 12 is incorrectly assembled, because the specifications of the first positioning groove 1142 and the second positioning groove 1152 are different, and accordingly, the specifications of the first mounting lug 123 and the second mounting lug 124 are also different, the second mounting lug 124 cannot be accommodated in the first positioning groove 1142 or interferes with the first positioning groove, or the first mounting lug 123 cannot be accommodated in the second positioning groove 1152 or interferes with the second positioning groove, the operator can be reminded of assembling errors, so that the second sub-fixing frame 12 can be adjusted to a correct assembling position, and the second sub-fixing frame 12 can be accurately assembled in place.

According to some embodiments of the present invention, referring to fig. 12 and 13, the second sub-fixing frame 12 is of a mirror symmetrical structure with respect to a third reference plane, which is perpendicular to the central axis of the horn 5. Therefore, the second sub-fixing frame 12 is arranged to be in a mirror symmetry structure with respect to the third reference surface, the compatibility of the second sub-fixing frame 12 can be improved, for example, when the booms 5 in different directions are installed, when the second sub-fixing frame 12 is used for installing one of the booms 5, the second sub-fixing frame 12 can be matched with the other first sub-fixing frame 11 to be installed on the boom 5 in another direction after rotating 180 degrees along the horizontal direction, the types of parts of the unmanned aerial vehicle 100 are reduced, the cost is reduced, the workload for distinguishing and classifying the second sub-fixing frames 12 in different specifications can be omitted when the booms 5 are installed, and the problem of installation errors caused by the use of the second sub-fixing frame 12 can be avoided.

According to some embodiments of the utility model, referring to fig. 6-10, a plurality of fixed frames 1 divide into at least two sets ofly, and every group includes two fixed frames 1 and every two fixed frames 1 of group and links to each other through tie-beam 23, for example the first sub-fixed frame 11 of two fixed frames 1 of every group links to each other through tie-beam 23, has the contained angle between the central axis of two fixed frames 1 of every group, and the central line symmetry setting about tie-beam 23 of two fixed frames 1 of every group. This makes it possible to improve the compatibility of the use of the fixing frame 1. For example, the mounting collar 3 is in a mirror symmetry structure with respect to the first reference surface, the clamping member 4 is in a mirror symmetry structure with respect to the second reference surface, the second sub-fixing frame 12 is in a mirror symmetry structure with respect to the third reference surface, and meanwhile, each two fixing frames 1 are symmetrically arranged with respect to the center line of the connecting beam 23, so that the mounting collar 3 and the clamping member 4 can be used for fixing frames 1 at different positions to connect the fixed boom 5, and the second sub-fixing frame 12 can be connected with the first sub-fixing frames 11 at different positions to form a fixing frame 1 to connect the fixed boom 5, thereby improving compatibility of various parts of the unmanned aerial vehicle 100.

In the description herein, references to the description of the term "one embodiment," "some embodiments," "an illustrative embodiment," "an example," "a specific example," or "some examples" or the like mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

While embodiments of the present invention have been shown and described, it will be understood by those of ordinary skill in the art that: various changes, modifications, substitutions and alterations can be made to the embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the claims and their equivalents.

Claims

1. An unmanned aerial vehicle, comprising:

the machine body comprises a plurality of fixed frames arranged at intervals, the fixed frames comprise a first sub-fixed frame and a second sub-fixed frame which are connected, the first sub-fixing frame includes a fixing frame main body having a first fitting groove opened upward, the second sub-fixing frame is provided with a second assembling groove which is opened downwards, the fixing frame main body is provided with a first upper end surface and a second upper end surface which are oppositely arranged at the left and the right and face upwards, the second sub-fixing frame is provided with a first lower end surface and a second lower end surface which are oppositely arranged at the left and the right and face downwards, the first upper end surface and the first lower end surface are opposite in the up-down direction and are spaced apart to define a first avoidance space, the second upper end surface and the second lower end surface are opposite in the up-down direction and are spaced apart to define a second avoidance space, the size of the first avoidance space in the vertical direction is different from the size of the second avoidance space in the vertical direction;

the machine arms are arranged at intervals along the circumferential direction of the machine body, the number of the machine arms is the same as that of the fixed frames and corresponds to that of the fixed frames one by one, the two opposite sides in the radial direction of each machine arm are respectively provided with a first connecting lug and a second connecting lug, the first connecting lug and the second connecting lug have different dimensions in the up-down direction, the first end of each of the arms is fitted in a fitting space defined by the first fitting groove and the second fitting groove of the corresponding fixing frame, the first connecting lug is suitable for being accommodated in the first avoidance space or is suitable for axially penetrating through the first avoidance space, the second connecting lug is suitable for being accommodated in the second avoiding space or is suitable for axially penetrating through the second avoiding space, the first connecting lug and the second connecting lug are connected with the first sub-fixing frame;

the power devices are used for providing flight lift force, the number of the power devices is the same as that of the horn arms, the power devices correspond to the horn arms one by one, and each power device is connected to the second end of the corresponding horn arm.

2. The drone of claim 1, wherein the first upper end surface and the second upper end surface are located on a same horizontal plane, the first lower end surface being higher than the second lower end surface.

3. The unmanned aerial vehicle of claim 1, wherein the horn is sleeved with at least one mounting collar, the first connecting lug and the second connecting lug are respectively formed on two radially opposite sides of each mounting collar, the mounting collars are in a mirror symmetry structure with respect to a first reference surface, and the first reference surface is a horizontal plane passing through centers of the mounting collars.

4. The unmanned aerial vehicle of claim 3, wherein the number of the mounting collar rings is two, the mounting collar rings are arranged at intervals along the axial direction of the horn, the two axial ends of the first assembling groove are respectively provided with an arc-shaped matching portion, the lower portions of the two mounting collar rings are respectively matched with the two matching portions, a limiting protrusion is formed on the matching portion far away from the second end of the horn, and the end face of the first end of the horn is abutted to the limiting protrusion.

5. The drone of claim 3, wherein an upper end surface of the first connecting lug and an upper end surface of the second connecting lug of each mounting collar lie in a first plane, a lower end surface of the first connecting lug and a lower end surface of the second connecting lug of each mounting collar lie in a second plane, the first plane and the first reference plane having a first included angle therebetween, the second plane and the first reference plane having a second included angle therebetween, the first included angle and the second included angle being the same.

6. A drone according to claim 3, characterized by comprising: the clamping piece, the clamping piece is the arc that the opening faced down, the clamping piece centre gripping is in the upper portion of the installation lantern ring, just the clamping piece with the sub-fixed frame of second sets up side by side in the axial direction, first connecting lug is suitable for to pass along the axial first space of dodging, the second connecting lug is suitable for to pass along the axial the space is dodged to the second, the opening both ends of clamping piece are first exposed core and second exposed core respectively, first exposed core end is supported first connecting lug on and with first connecting lug links to each other, the second exposed core end support on the second connecting lug and with the second connecting lug links to each other.

7. The drone of claim 6, wherein the clamp is mirror symmetrical about a second reference plane, the second reference plane being perpendicular to the central axis of the horn.

8. The drone of claim 6, wherein the end surface of the first clamp end abutting the upper end surface of the first connecting lug is a first clamp end surface, the end surface of the second clamp end abutting the upper end surface of the second connecting lug is a second clamp end surface, and the first clamp end surface and the second clamp end surface are both located in a third plane.

9. The unmanned aerial vehicle of claim 8, wherein at least one of the first and second clamping end surfaces has an anti-slip protrusion formed thereon for limiting the first and/or second connecting lugs, the anti-slip protrusion being located on an outer circumferential side of the first and/or second connecting lugs to limit the horn in an axial direction.

10. A drone according to claim 6, wherein the first sub-frame comprises:

the first limiting part is arranged on the first upper end face and is positioned at one end, far away from the first assembling groove, of the first upper end face;

the second limiting part is arranged on the second upper end face and is positioned at one end, far away from the first assembling groove, of the second upper end face;

the fixed frame of second with the holder all is located first spacing portion with between the spacing portion of second, first spacing portion with the spacing portion of second is formed with first spacing groove, second spacing groove on the wall each other respectively, first exposed core with the second exposed core holds respectively first spacing groove the spacing inslot of second, first exposed core with first spacing groove phase-match, the second exposed core with the second spacing groove phase-match, first spacing groove with the specification of second spacing groove is different.

11. The drone of claim 10, wherein the cross section of the first restraint slot is a right-angled rectangle and the cross section of the second restraint slot is a rounded rectangle.

12. The drone of claim 1, wherein the first sub-mount comprises:

the fixed frame of second is located first spacing portion with between the spacing portion of second, the relative both ends of the fixed frame of second are formed with first installation lug, second installation lug respectively, the top of first spacing portion is formed with first positioning groove, first installation lug cooperation is in the first positioning groove and with first spacing portion links to each other, the top of the spacing portion of second is formed with second positioning groove, second installation lug cooperation is in the second positioning groove and with the spacing portion of second links to each other.

13. The drone of claim 12, wherein the first mounting lug mates with the first detent, the second mounting lug mates with the second detent, and the first detent and the second detent are of different gauges.

14. The drone of claim 1, wherein the second sub-mount is mirror symmetric about a third reference plane, the third reference plane being perpendicular to the central axis of the horn.

15. An unmanned aerial vehicle according to any one of claims 1-14, wherein a plurality of the fixed frames are divided into at least two groups, each group comprises two of the fixed frames and each group of the two fixed frames are connected by a connecting beam, an included angle is formed between central axes of each group of the two fixed frames, and each group of the two fixed frames are symmetrically arranged about a central line of the connecting beam.