CN210852879U

CN210852879U - Unmanned aerial vehicle's frame subassembly and unmanned aerial vehicle

Info

Publication number: CN210852879U
Application number: CN201921396979.3U
Authority: CN
Inventors: 何建兵
Original assignee: Guangzhou Xaircraft Technology Co Ltd
Current assignee: Guangzhou Xaircraft Technology Co Ltd
Priority date: 2019-08-26
Filing date: 2019-08-26
Publication date: 2020-06-26
Anticipated expiration: 2029-08-26

Abstract

The utility model discloses an unmanned aerial vehicle's frame subassembly and unmanned aerial vehicle. The frame subassembly includes fixed frame and clamping part, and fixed frame includes first connecting portion and two first fixed parts, and first connecting portion connects between two first fixed parts. The two opposite surfaces of the first fixing parts are a first surface and a second surface, each first fixing part is provided with an open assembling groove, the side wall of each assembling groove is provided with a step surface, the step surfaces extend along the length direction of the assembling groove, and the included angle between each step surface and the first surface is 1.5-4 degrees. The clamping part is detachably connected with the fixing frame and used for clamping the machine arm. According to the utility model discloses an unmanned aerial vehicle's frame subassembly has certain inclination's step face through the setting, and the step face can produce an effort to the horn, and this effort is different with unmanned aerial vehicle's flight lift direction, and then can promote unmanned aerial vehicle turn to sensitivity.

Description

Unmanned aerial vehicle's frame subassembly and unmanned aerial vehicle

Technical Field

The utility model relates to an unmanned air vehicle technique field especially relates to an unmanned aerial vehicle's frame subassembly and unmanned aerial vehicle.

Background

With the development of the unmanned aerial vehicle, the unmanned aerial vehicle has the advantages of flexibility, quick response, unmanned flight, low operation requirement and the like, draws attention in many ways, and is applied to a plurality of fields such as agriculture and exploration. Unmanned aerial vehicle includes the frame, a plurality of horn (can be four, six or more) that link to each other with the frame, set up the power component that is used for driving this unmanned aerial vehicle flight on the horn and be used for controlling this unmanned aerial vehicle's control system. For adjusting unmanned aerial vehicle's flight parameter, adaptation unmanned aerial vehicle flight demand, unmanned aerial vehicle's power component's axis need outwards deviate for the perpendicular line of horizontal plane. In the related art, the connecting structure for realizing the outward deviation of the central axis of the power assembly relative to the vertical line of the horizontal plane between the rack and the machine arm is complex, poor in stability and high in part processing cost.

SUMMERY OF THE UTILITY MODEL

The utility model provides an unmanned aerial vehicle's frame subassembly, unmanned aerial vehicle's frame subassembly has simple structure, easy dismounting's advantage.

The utility model also provides an unmanned aerial vehicle, unmanned aerial vehicle includes the aforesaid unmanned aerial vehicle's frame subassembly.

According to the utility model discloses unmanned aerial vehicle's frame subassembly, include: a frame; the fixing frame is connected with the rack and comprises a first connecting part and two first fixing parts, wherein one first fixing part is connected with one end of the first connecting part, the other first fixing part is connected with the other end of the first connecting part, and two surfaces opposite to the first fixing part are a first surface and a second surface; one end of each of the two machine arms is provided with a propeller, the two machine arms are correspondingly connected with the two first fixing parts one by one, and an included angle between the rotation axis of each propeller and the perpendicular line of the second surface is 1.5-4 degrees; the clamping part, the clamping part with fixed frame detachably connects in order to be used for the centre gripping the horn.

According to the utility model discloses unmanned aerial vehicle's frame subassembly has certain inclination's step face through the setting, and the step face can produce an effort to the horn, and this effort is different with the flight lift direction of aircraft, and then can promote turning to sensitivity of aircraft.

In some embodiments, the horn has a lug with a third fitting hole, and the clamping portion has a receiving groove adapted to the lug.

In some embodiments, the frame assembly of the drone further comprises: the lantern ring, the lantern ring cover is located the stiff end of horn, the lantern ring centre gripping is in the assembly space.

In some embodiments, the outer peripheral wall of the collar is provided with a lug, the lug is provided with a third assembling hole for fixing the collar, and the clamping part is provided with a receiving groove matched with the lug.

In some embodiments, two of the assembling protrusions are arranged in each of the assembling grooves, and the two assembling protrusions are arranged at intervals along the length direction of the assembling grooves.

In some embodiments, two of the first fixing portions are mirror-symmetrical about the central axis plane.

In some embodiments, each of the first fixing portions is provided with an open fitting groove, a bottom wall of the fitting groove is provided with a fitting projection, an open mouth of the fitting groove is provided at the first surface, and a side wall of the fitting groove is provided with a step surface extending in a length direction of the fitting groove.

In some embodiments, the step surface is gradually inclined downward in a direction away from the center of the drone.

In some embodiments, the included angle between the step surface and the first surface is 1.5 ° to 4 °.

In some embodiments, the included angle between the step surface and the first surface is 2 ° to 3 °.

In some embodiments, a first assembling hole is formed in the step surface, and a second assembling hole matched with the first assembling hole is formed in the clamping portion.

In some embodiments, the first surface is parallel to the second surface.

In some embodiments, the first fixing portion is provided with a stop protrusion extending towards the inside of the assembling groove, the stop protrusion is located at one end of the assembling groove far away from the free end of the horn, and the stop protrusion is in stop fit with the horn.

In some embodiments, a guide groove is formed in a side wall of the assembling groove, the guide groove extends along the depth direction of the assembling groove, the upper end of the guide groove is communicated with the opening of the assembling groove, and a guide portion matched with the guide groove is formed in the clamping portion.

In some embodiments, at least one of the bottom wall and the side wall of the fitting groove is provided with a weight-reduction groove.

In some embodiments, the lower surface of the lug is parallel to the first surface.

According to the utility model discloses unmanned aerial vehicle, include: the frame subassembly, the frame subassembly is as above unmanned aerial vehicle's frame subassembly.

According to the utility model discloses unmanned aerial vehicle has certain inclination's step face through the setting, and the step face can produce an effort to the horn, and this effort is different with the flight lift direction of aircraft, and then can promote turning to sensitivity of aircraft.

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 schematic structural diagram of an unmanned aerial vehicle according to an embodiment of the present invention;

fig. 2 is a schematic view of a partial structure of an unmanned aerial vehicle according to an embodiment of the present invention;

fig. 3 is a schematic structural view of the fixing frame and the lantern ring of the unmanned aerial vehicle according to the embodiment of the present invention;

FIG. 4 is a schematic cross-sectional view taken along A-A of FIG. 3;

FIG. 5 is a schematic view of a portion of the structure of FIG. 4;

fig. 6 is a schematic structural view of a fixed frame of an unmanned aerial vehicle according to an embodiment of the present invention;

fig. 7 is a schematic view of a partial structure of a fixed frame of an unmanned aerial vehicle according to an embodiment of the present invention;

figure 8 is a schematic cross-sectional view of a fixed frame of an unmanned aerial vehicle according to an embodiment of the invention;

fig. 9 is a schematic structural view of a collar of an unmanned aerial vehicle according to an embodiment of the present invention;

fig. 10 is a schematic structural view of another perspective of a collar of an unmanned aerial vehicle according to an embodiment of the invention;

fig. 11 is a schematic structural view of a clamping portion of an unmanned aerial vehicle according to an embodiment of the present invention;

figure 12 is a schematic cross-sectional view of a clamping portion of an unmanned aerial vehicle according to an embodiment of the invention;

fig. 13 is a schematic structural view of a top plate of an unmanned aerial vehicle according to an embodiment of the present invention;

fig. 14 is a schematic structural diagram of a bottom plate of an unmanned aerial vehicle according to an embodiment of the present invention;

fig. 15 is a schematic structural diagram of the unmanned aerial vehicle according to the embodiment of the present invention.

Reference numerals:

the drone 100 is provided with a display screen for displaying the video,

a frame 10, a bottom plate 11, a guide hole 110, a center through hole 111, a through hole 123, a top plate 12, an avoidance hole 121, a center hole 122, a landing gear 14,

the fixing frame 210, the first coupling part 211, the first fixing part 212, the fitting groove 2120, the fitting projection 2121, the first fitting groove 21211, the stopping projection 2122, the stepped surface 2123, the first fitting hole 21230, the guide groove 2124, the weight-reducing groove 2125, the first surface 2127, the second surface 2128,

a clamping portion 30, a second fitting groove 310, a fastening portion 320, a second fitting hole 321, a guide portion 330, a body portion 350,

collar 40, boss 401, third mounting hole 4010, first circular arc segment 410, second circular arc segment 420, first planar segment 430, second planar segment 440, transition segment 450, trepan 470,

the number of components in the reservoir 810, the battery 820,

horn 90, propeller 910.

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.

The frame assembly of the unmanned aerial vehicle and the unmanned aerial vehicle 100 according to the embodiment of the present invention are described below with reference to fig. 1 to 15. 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. 3 and 12, according to the utility model discloses unmanned aerial vehicle's frame subassembly includes: frame 10, fixed frame 210, clamping part 30 and two horn 90. It should be noted that the frame assembly includes two arms 90, but is not limited to two arms 90, and may include four arms 90 or six arms 90.

Specifically, as shown in fig. 6 to 8, the fixing frame 210 is connected to the frame 10 and includes a first connecting portion 211 and two first fixing portions 212, one of the first fixing portions 212 is connected to one end of the first connecting portion 211, the other first fixing portion 212 is connected to the other end of the first connecting portion 211, and each of the first fixing portions 212 is provided with a first fitting groove 21211.

Each of the first fixing parts 212 is provided with an open fitting groove 2120, whereby one end of the horn 90 may be inserted into the fitting groove 2120 to facilitate the fixed fitting of the horn 90. The bottom wall of the fitting groove 2120 is provided with a fitting projection 2121, and the first fitting groove 21211 is provided on the fitting projection 2121. As shown in fig. 7, the upper end surface of the fitting projection 2121 is configured as a first fitting groove 21211 of an arc shape so as to fit the gripper arm 90. The other end of the horn 90 is provided with a propeller 910.

The propeller 910 may provide flight lift to the drone 100, the propeller 910 including a motor and a propeller that may be driven to rotate by the motor.

The two opposite surfaces of the first fixing part 212 are a first surface 2127 and a second surface 2128, and the propeller 910 may be pre-assembled to the horn 90 such that when the horn 90 is assembled with the first fixing part 212, the rotation axis of the propeller 910 is at an angle of 1.5 ° to 4 ° to the perpendicular of the second surface 2128. It will be appreciated that when the drone 100 is flying in a space parallel to the horizontal plane, the second surface 2128 is parallel to the horizontal plane, with the axis of rotation of the propeller 910 at an angle off the vertical to the horizontal plane.

As shown in fig. 7 and 15 in combination, the clamping part 30 has a second fitting groove 310, the clamping part 30 is detachably coupled with the fixing frame 210 and fixes the horn 90, and the first fitting groove 21211 and the second fitting groove 310 together define a fitting space for clamping the horn 90.

In this embodiment, each fixing frame 210 is provided with two first fixing portions 212, and each first fixing portion 212 can be matched with the corresponding clamping portion 30 for fixing one of the arms 90, so that two arms 90 can be fixed in the two first fixing portions 212 of one fixing frame 210. From this, optimized the structure of frame subassembly, improved the fastness and the stability that horn 90 is fixed, moreover, the assembly and the dismantlement of horn 90 of being convenient for.

In some embodiments, each of the first fixing parts 212 is provided with an open fitting groove 2120, an open mouth of the fitting groove 2120 is provided on the first surface 2127, both side walls of the fitting groove 2120 are provided with a stepped surface 2123, the stepped surface 2123 extends along the length direction of the fitting groove 2120, and an included angle between the stepped surface 2123 and the second surface 2128 is 1.5 ° to 4 °, as shown in fig. 8, an included angle between the stepped surface 2123 and the second surface 2128 is β, wherein 1.5 ° or more and β or less and 4 ° or less, it is understood that the stepped surface 2123 has a certain inclination angle with respect to the second surface 2128.

In some embodiments, the horn 90 has a lug 401, the lug 401 is provided with a third fitting hole 4010, and the clamping portion 30 is provided with a receiving groove adapted to the lug 401. Thereby, the fixing of the holder 30 to the horn 90 is facilitated.

Further, two symmetrically disposed lugs 401 are formed on the outer circumferential surface of the fixed end of the horn 90 fitted into the fitting groove 2120, each lug 401 has two mounting surfaces disposed in parallel up and down, the propeller 910 may be pre-fitted to the horn 90 with the rotational axis of the propeller 910 perpendicular to the mounting surfaces of the lugs 401. When the horn 90 is assembled with the first fixing portion 212. Since the stepped surface 2123 of the first fixing portion 212 has a certain inclination angle with respect to the second surface 2128. Therefore, the central axis of the motor pre-mounted on the horn 90 may be offset from a perpendicular line perpendicular to the second surface 2128 by an angle of the stepped surface 2123 with respect to the second surface 2128. I.e., such that the angle between the axis of rotation of the propeller 910 and the perpendicular to the second surface 2128 is 1.5-4. That is, the axis of rotation of propeller 910 is at an angle of 1.5-4 degrees from perpendicular to the horizontal when the aircraft is in horizontal flight.

According to some embodiments of the present invention, as shown in fig. 8, first surface 2127 is parallel to second surface 2128. It will be appreciated that the included angle between the step surface 2123 and the second surface 2128 may also be 1.5-4. In some embodiments, the step face 2123 slopes gradually downward in a direction away from the center of the drone. From this, can be favorable to promoting unmanned aerial vehicle's sensitivity. Further, the included angle between the step face 2123 and the first surface 2127 may be 2 ° to 3 °. Experiments prove that when the included angle between the step surface 2123 and the first surface 2127 is 2-3 degrees, the steering flexibility of the unmanned aerial vehicle is better.

As shown in fig. 3 and 6, the fixed end of the horn 90 may extend into the mounting groove 2120, and after the horn 90 extends into the mounting groove 2120, the mounting surfaces of the lugs 401 on both sides of the horn 90 may be attached to the step surface 2123, and the clamping portion 30 fixes the lugs 401 on both sides of the horn 90 to the step surface 2123, thereby fixing the horn 90, wherein part of the outer peripheral wall of the horn 90 is attached to the inner wall surfaces of the first fitting groove 21211 and the second fitting groove 310 of the clamping portion 30 to increase the connection stability between the horn 90 and the first fixing portion 212.

In some embodiments of the invention, as shown in fig. 7 and 6. Each fitting groove 2120 is provided with two fitting protrusions 2121, and the two fitting protrusions 2121 are spaced apart from each other in a longitudinal direction of the fitting groove 2120. It will be appreciated that by providing two mounting lugs 2121 in each mounting slot 2120, each mounting lug 2121 has a first mating slot 21211. Two pairs of symmetrically-arranged lugs 401 are formed on the outer peripheral surface of the fixed end of each horn 90, after the horn 90 extends into the corresponding assembling groove 2120, the mounting surfaces of the two pairs of lugs 401 are respectively attached to the step surfaces 2123, and two first matching grooves 21211 arranged at intervals in the front-back direction in each assembling groove 2120 are respectively matched with the second matching grooves 310 on the clamping portion 30 to fix the horn 90, so that the firmness and stability of the fixation of the horn 90 can be improved.

According to some embodiments of the present invention, as shown in fig. 7, the first fixing portion 212 may be provided with a stop protrusion 2122 extending toward the inside of the assembling groove 2120, the stop protrusion 2122 is located at one end of the assembling groove 2120 far away from the free end of the horn 90, and the assembling protrusion 2121 is in stop fit with the horn 90. From this, the boss 2122 that supports can cooperate with horn 90 in order to carry out spacing fixed to horn 90, makes horn 90 stretch into to the assembly groove 2120 in the back, can stop in advance to predetermined position to fix horn 90.

As shown in fig. 7, two fitting projections 2121 are provided at intervals in the front-rear direction in each fitting groove 2120, wherein the fitting projection 2121 on the front side (the front-rear direction as shown in fig. 7) is provided with an abutting projection 2122 that projects from the mating surface of the first mating groove 21211. When the horn 90 is inserted into the corresponding mounting groove 2120, the stop protrusion 2122 may abut against the horn 90 to pre-fix the horn 90 to a predetermined mounting position. Thereby, the convenience of assembling the horn 90 is improved. It is to be understood that the position of the stop protrusion 2122 is not limited to the above arrangement, for example, the stop protrusion 2122 may be provided on the inner peripheral wall of the fitting groove 2120 as long as the stop protrusion 2122 is brought into stop-fit with the horn 90 to pre-fix the horn 90 to the fixed fitting position.

In some embodiments of the present invention, as shown in fig. 7, the side wall of the assembling groove 2120 is provided with a step face 2123, the step face 2123 extends along the length direction of the assembling groove 2120, the step face 2123 is provided with a first assembling hole 21230, each lug 401 is provided with a third assembling hole 4010 for fixing, and the clamping portion 30 is provided with a second assembling hole 321 adapted to the first assembling hole 21230 and the third assembling hole 4010. Thereby, the fixing assembly between the clamping portion 30 and the fixing frame 210 is facilitated, and the horn 90 is fixed. For example, when the horn 90 and the fixing frame 210 are assembled, the abutment protrusion 2122 is abutted against the horn 90 after the horn 90 is inserted into the corresponding assembly groove 2120, whereby the third assembly hole 4010 is positioned and aligned with the second assembly hole 321 by providing the abutment protrusion 2122 protruding from the engagement face of the first engagement groove 21211 on the assembly protrusion 2121 located on the front side (the front-rear direction as shown in fig. 7). The clamping portion 30 is fixed to the fixing frame 210 by the screw fastener, and the horn 90 is fixed to the fixing frame 210. This improves the firmness and reliability of the assembly between the clamping portion 30 and the fixed frame 210, and facilitates the attachment and detachment between the clamping portion 30 and the fixed frame 210.

As shown in fig. 7, the fitting groove 2120 may be configured as a stepped groove, a stepped surface 2123 on a side wall of the fitting groove 2120 extends in a front-rear direction, and a first fitting hole 21230 is provided at a position of the stepped surface 2123 adjacent to the first fitting groove 21211. Accordingly, as shown in fig. 5 and 7, the end of the clamping portion 30 is provided with a second fitting hole 321 that fits into the first fitting hole 21230. Thereby, the fixed fitting between the clamping portion 30 and the fixing frame 210 is facilitated.

According to some embodiments of the present invention, as shown in fig. 7, a guide groove 2124 is provided on a side wall of the fitting groove 2120, and the guide groove 2124 extends in a depth direction of the fitting groove 2120 (i.e., an up-down direction shown in fig. 7). The upper end of the guide groove 2124 communicates with the opening of the fitting groove 2120, and as shown in fig. 11 and 12, the holder 30 is provided with a guide portion 330 fitted to the guide groove 2124. Thus, when the clamping part 30 and the fixing frame 210 are assembled, the guide part 330 is inserted into the corresponding guide groove 2124 and moved downward along the guide groove 2124 so that the end of the clamping part 30 abuts against the mounting surface of the upper end of the abutment protrusion 2122, and the second fitting hole 321 is aligned with the third fitting hole 4010 of the boss 401 by the guide part 330 provided on the clamping part 30 to be fitted into the guide groove 2124. The clamping part 30, the horn 90, and the fixing frame 210 are coupled to each other by means of screw fasteners through the first, second, and third assembly holes 21230, 321, and 4010.

In some embodiments of the present invention, as shown in fig. 7 and 6, at least one of the bottom wall and the side wall of the fitting groove 2120 is provided with a weight-reducing groove 2125. That is, the weight-reducing grooves 2125 may be provided in the bottom wall of the fitting groove 2120, the weight-reducing grooves 2125 may be provided in the side walls of the fitting groove 2120, or the weight-reducing grooves 2125 may be provided in both the bottom wall and the side walls of the fitting groove 2120. The weight-reduction grooves 2125 may penetrate through the corresponding bottom wall or side wall of the fitting groove 2120 in the thickness direction. It can be understood that by providing the weight-reducing grooves 2125, the amount of material used for the fixing frame 210 can be saved, and the production cost of the fixing frame 210 can be reduced. Moreover, the overall weight of the drone 100 may be reduced, so that the flight energy consumption of the drone 100 may be reduced.

In some embodiments of the present invention, as shown in fig. 3, the included angle between the center lines of the two first fixing portions 212 is α, which satisfies 65 ° ≦ α ≦ 75 °, it is verified through experiments that the stability and stability of the flight of the drone 100 may be improved when the included angle α between the center lines of the two first fixing portions 212 satisfies 65 ° ≦ α ≦ 75 °, for example, the included angle α between the center lines of the two first fixing portions 212 may be 70 °.

In some embodiments of the present invention, as shown in fig. 3-5, 9, and 10, the rack assembly may further include a collar 40. The protrusion 401 may be formed on an outer circumferential surface of the collar 40, the collar 40 is fitted over the fixed end of the horn 90, and the collar 40 is clamped in the fitting space. It should be noted that when the horn 90 is inserted into the mounting groove 2120, the collar 40 may be clamped in the mounting space defined by the first and second

fitting grooves

21211 and 310, so that the fixing firmness and reliability of the horn 90 may be improved. The inner peripheral wall of the collar 40 may be provided with a filling groove, and when the collar 40 and the horn 90 are assembled, glue may be injected into the outer peripheral wall or the filling groove of the horn 90 to firmly and reliably fix the collar 40 to the horn 90. According to some embodiments of the present invention, as shown in fig. 5, 9-10, the fastening portion 320 of the holding portion 30 is provided with a receiving groove adapted to the lug 401 on the end surface, thereby preventing the arm 90 from loosening along the axial direction. It should be noted that, in conjunction with fig. 5, 9-10, when the horn 90 needs to be assembled, the collar 40 may be assembled to the fixed end of the horn 90 first, and then the horn 90 with the collar 40 inserted therein may be inserted into the corresponding assembly slot 2120. The collar 40 on the horn 90 stops against the limit protrusion to limit the horn 90 to a predetermined position.

At this time, the third fitting hole 4010 on the collar 40 is opposed to the first fitting hole 21230 on the stepped surface 2123. Subsequently, the clamping part 30 is moved to a predetermined position by fitting the guide part 330 with the guide groove 2124, and at this time, the first fitting hole 21230, the second fitting hole 321, and the third fitting hole 4010 are all opposed. Subsequently, the fixed assembly of the horn 90 is accomplished by means of the screw fasteners through the second assembly hole 321, the third assembly hole 4010 and the first assembly hole 21230.

In some embodiments, a single horn 90 may correspond to a plurality of collars 40, and the plurality of collars 40 may be spaced along the length of the horn 90. Each pair of oppositely disposed lugs 401 is formed on the outer peripheral surface of a different collar 40, and a plurality of collars 40 can be arranged in one fitting groove 2120 when fitting. Therefore, the disassembly and assembly of the lantern ring 40 between the machine arms 90 are convenient, and the lantern ring 40 is convenient to replace.

In some embodiments, as shown in fig. 15, the two first fixing portions 212 are mirror symmetric about the central axis plane X of the drone, and thus, the step surfaces 2123 on the two first fixing portions 212 are gradually inclined downward in a direction away from the central axis plane X of the drone. The central axis of the pre-installed propellers on the left and right arms 90 of the unmanned aerial vehicle can be deflected by a certain angle relative to the second surface 2128 in the direction away from the central axis X of the unmanned aerial vehicle through the step surface 2123. The flying vehicle is more flexible when changing the flying state in the left and right directions.

Further, the guide portions 330 on both sides of the clamping portion 30 have different shapes, and the guide grooves 2124 adapted to the guide portions 330 on both sides of the clamping portion 30 also have different shapes, so that the clamping portion 30 can simultaneously adapt to the fixing of the two arms 90 and the first fixing portion 212 on both sides when the direction is changed.

It should be noted that, as shown in fig. 11, 12 and 15, each fixing frame 20 includes two first fixing portions 212, and the two first fixing portions 212 are mirror-symmetrical with respect to the central axis plane X of the drone, and each first fixing portion 212 may cooperate with the clamping portion 30 to fix one horn 90, that is, each fixing frame 20 cooperates with the clamping portion 30 to fix two horns 90. From this, can simplify the structure of frame subassembly, the assembly of the frame subassembly of being convenient for moreover for the frame subassembly realize with simplest structure that the axis of motor deflects certain angle for keeping away from unmanned aerial vehicle axis X both sides with perpendicular to second surface 2128 perpendicular line on the horn 90 of axial plane X both sides in the unmanned aerial vehicle. And then promote unmanned aerial vehicle's sensitivity to the left and right sides.

According to some embodiments of the present invention, as shown in fig. 2, 13-15, the frame 10 comprises: a bottom plate 11 and a top plate 12. The fixing component is arranged on the bottom plate 11, the top plate 12 is arranged above the bottom plate 11 at intervals, and the avoidance hole 121 is arranged at the position of the top plate 12 opposite to the first matching groove 21211.

As shown in fig. 13, the relief hole 121 may be formed in a shape that fits the holding portion 30. The relief hole 121 penetrates the top plate 12 in the thickness direction of the top plate 12. As shown in fig. 2, the fixing component is disposed between the top plate 12 and the bottom plate 11, the avoiding hole 121 is disposed at a position of the top plate 12 opposite to the first fitting groove 21211, and the clamping portion 30 can pass through the corresponding avoiding hole 121 to be assembled with and disassembled from the fixing component, so that convenience in assembling and disassembling the clamping portion 30 and the fixing component is improved, and fixing efficiency of the horn 90 is improved.

In some embodiments of the present invention, the frame 10 may further include: and one end of the mounting frame is clamped between the top plate 12 and the bottom plate 11. It should be noted that, components such as liquid storage container 810 and battery 820 can be arranged on the unmanned aerial vehicle 100, and through setting up fixed frame 210, the assembly of components such as liquid storage container 810 and battery 820 on the unmanned aerial vehicle 100 is convenient for.

The installation frame includes: mount, mounting bracket and spacer beam. Wherein, the mount is used for installing stock solution container 810, and stock solution container 810 can load liquid such as liquid medicine or water to realize that unmanned aerial vehicle 100 sprays the function of liquid medicine and watering. The fixing frame comprises a base plate and two extension plates, wherein one extension plate is connected with one end of the base plate, and the other extension plate is connected with the other end of the base plate.

The mounting bracket is used to mount a battery 820, and the battery 820 can provide energy for the flight of the drone 100. The mounting bracket includes end plate and two blocks of curb plates, and one of them curb plate and the one end of end plate, two extension boards all is connected, and wherein another curb plate all is connected with another in the other end of end plate, two extension boards.

The partition beam is connected between the two side plates. Thus, the mounting frame can be divided into a first mounting space and a second mounting space, the liquid storage container 810 can be disposed in the first mounting space, and the battery 820 can be disposed in the second mounting space. Therefore, mutual interference between the liquid storage container 810 and the battery 820 can be avoided, and the firmness and reliability of fixing the liquid storage container 810 and the battery 820 are improved.

At least one of the base plate and the extension plate is connected with the fixing member. That is, the substrate may be connected with the fixing member; the extension plate can also be connected with the fixing component; alternatively, both the base plate and the extension plate are connected to the fixing member. Therefore, the firmness and reliability of fixing the fixing component can be improved.

In some embodiments of the present invention, the fixing frame 210 and the fastening frame are disposed between the top plate 12 and the bottom plate 11 at an interval, and the fixing frame 210 is connected to the mounting frame. It should be noted that the unmanned aerial vehicle 100 may be provided with a plurality of booms 90 (e.g., 4, 6, or 8), and the plurality of booms 90 may be fixedly assembled by using the fixed frame 210 and the fastening frame by providing the fixed frame 210 and the fastening frame at an interval between the top plate 12 and the bottom plate 11.

As shown in fig. 1 and 2, the drone 100 is provided with four arms 90, wherein two arms 90 are mirror symmetric with the other two arms 90 about the central axis plane X of the drone. The fixing frame 210 and the fastening frame are provided between the top plate 12 and the bottom plate 11 at an interval in the front-rear direction of the drone 100. Wherein, two horn 90 that are located unmanned aerial vehicle 100 front side pass through fastening frame fixed connection, and two horn 90 that are located unmanned aerial vehicle 100 rear side pass through fixed frame 210 fastening connection. From this, the fastness and the reliability of unmanned aerial vehicle 100 horn 90 fixed have been improved.

According to some embodiments of the present invention, the first connection portion 211 is connected with the mounting frame. For example, the first connection portion 211 may be provided in a plate shape, and the first connection portion 211 and the mounting frame may be fixedly connected by a screw fastener. Therefore, firmness and reliability of fixation between the first connecting portion 211 and the mounting frame can be improved, and fixation, assembly and disassembly between the first connecting portion 211 and the mounting frame are facilitated.

The contour of the fixing frame 210 is adapted to the contour of the mounting frame. When the fixing frame 210 and the mounting frame are assembled, the first connecting portion 211 is opposed to the base plate and connected by a screw fastener, and the two first fixing portions 212 are opposed to the two extension plates and connected by a screw fastener, respectively. Therefore, the firmness and reliability of fixation between the fixing frame 210 and the mounting frame are improved, and the fixing frame 210 and the mounting frame are convenient to assemble and disassemble.

According to some embodiments of the utility model, the fastening frame includes: the first connecting part is connected with the first fixing part, and the first fixing part is connected with the first connecting part. It should be noted that the shape of the fastening frame may be the same as that of the fixing frame 210, and the shape of the second fixing portion is the same as that of the first fixing portion 212, which is not described herein again.

According to some embodiments of the present invention, one of the fixing member and the frame 10 is provided with a guide post, and the other is provided with a guide hole 110 adapted to the guide post. That is, a guide post may be disposed on the fixing component, and a guide hole 110 adapted to the guide post may be disposed on the frame 10; the fixing member may be provided with a guide hole 110, and the frame 10 may be provided with a guide post adapted to the guide hole 110. Thus, alignment fitting between the fixing member and the housing 10 is facilitated by the fitting between the guide posts and the guide holes 110.

As shown in fig. 13 to 14, the top wall and the bottom wall of the mounting groove 2120 are provided with guide posts, and correspondingly, the top plate 12 and the bottom plate 11 are provided with guide holes 110 adapted to the guide posts. Thus, positioning and assembling between the fixing member and the housing 10 are facilitated by the engagement between the guide posts and the guide holes 110.

In some embodiments of the present invention, the drone 100 may further include: the fastener and the fitting piece, the fitting piece and the fastener detachably connect. The fastener is provided with a first fixing groove. Accordingly, the fitting member is provided with a second fixing groove, and the first fixing groove and the second fixing groove together define a clamping space for fixing the horn 90. Therefore, the horn 90 can be further fixedly clamped by the fastener and the fitting piece, thereby further improving the firmness and reliability of fixing the horn 90.

According to the utility model discloses unmanned aerial vehicle 100, unmanned aerial vehicle 100 includes: a frame subassembly, the frame subassembly be the above a frame subassembly for unmanned aerial vehicle 100.

According to the utility model discloses unmanned aerial vehicle 100 has two first fixed parts 212 through the fixed frame 210 of every that sets up unmanned aerial vehicle 100, and every first fixed part 212 all can be used for fixed horn 90 with the cooperation of the clamping part 30 that corresponds to can make two horns 90 be fixed in two first fixed parts 212 of a fixed frame 210. From this, optimized the structure of frame subassembly, improved the fastness and the stability that horn 90 is fixed, moreover, the assembly and the dismantlement of horn 90 of being convenient for, and then make unmanned aerial vehicle 100's structure compacter reasonable, the unmanned aerial vehicle 100's of being convenient for dismantlement and maintenance.

In some embodiments, as shown in fig. 1, the drone 100 may include: frame 10, horn 90, housing assembly, landing gear 14, propeller 910, reservoir 810, battery 820, and a control module (electronic control device). The arms 90 are distributed around the frame 10 and fixedly connected to the frame 10. Undercarriage 14 is fixed in the frame 10 below in order to guarantee the stability of unmanned aerial vehicle 100 taking off and landing, and screw 910 is fixed in the tip that the horn 90 is far away from frame 10, and screw 910 provides lift for unmanned aerial vehicle 100 flight, and liquid storage container 820 is carried and is used for the splendid attire to wait to spray or the article of waiting to transport in the frame 10, and battery 820 is fixed in the frame 10 and provides power for screw 910, and control module is fixed in the flight posture that is used for controlling unmanned aerial vehicle 100 in the frame 10.

Referring to fig. 1 and 2, the unmanned aerial vehicle 100 further includes a mounting frame connected to the frame 10, wherein the frame 10 includes the mounting frame, and a top plate 12 and a bottom plate 11 oppositely disposed on two sides of the fixing frame 13, the top plate 12 and the bottom plate 11 are used for carrying devices such as a control module, and the liquid storage container 810 and the battery 820 are adapted to be fixed in the mounting frame. Wherein, the mounting frame prescribes a limit to installation space, and installation space passes through the first installation space of bulkhead interval partition into and second installation space. The battery 820 may be mounted in the first mounting space, and the reservoir 810 may be mounted in the second mounting space. Referring to fig. 13 to 14, the top plate 12 is provided with a plurality of positioning holes, via holes 112 and relief holes 121, and the bottom plate 11 is provided with a plurality of positioning holes and through holes 123.

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's frame subassembly which characterized in that includes:

a frame;

the fixing frame is connected with the rack and comprises a first connecting part and two first fixing parts, wherein one first fixing part is connected with one end of the first connecting part, the other first fixing part is connected with the other end of the first connecting part, and two surfaces opposite to the first fixing part are a first surface and a second surface;

one end of each of the two machine arms is provided with a propeller, the two machine arms are correspondingly connected with the two first fixing parts one by one, and an included angle between the rotation axis of each propeller and the perpendicular line of the second surface is 1.5-4 degrees;

the clamping part, the clamping part with fixed frame detachably connects in order to be used for the centre gripping the horn.

2. The airframe assembly as defined in claim 1, wherein the horn has a lug, the lug is provided with a third fitting hole, and the clamping portion is provided with a receiving groove adapted to the lug.

3. The airframe assembly as defined in claim 1, further comprising: the lantern ring, the lantern ring cover is located the stiff end of horn.

4. The unmanned aerial vehicle frame assembly of claim 3, wherein the collar has a peripheral wall provided with a lug, the lug is provided with a third fitting hole for fixing the collar, and the clamping portion is provided with a receiving groove adapted to the lug.

5. The unmanned aerial vehicle frame assembly of claim 4, wherein a lower surface of the lug is parallel to the first surface.

6. The airframe assembly as defined in claim 1, wherein the two first fastening portions are mirror images of a central axis plane.

7. The unmanned aerial vehicle's frame subassembly of claim 1, wherein each first fixed part is equipped with open assembly groove, the diapire of assembly groove is equipped with the assembly lug, the open mouth of assembly groove is located the first surface, the lateral wall of assembly groove is equipped with the step face, the step face extends along the length direction of assembly groove.

8. The airframe assembly as recited in claim 7, wherein said step surface is inclined gradually downward in a direction away from a central axis of said airframe.

9. The unmanned aerial vehicle frame assembly of claim 7, wherein an angle between the step surface and the first surface is between 1.5 ° and 4 °.

10. The unmanned aerial vehicle frame assembly of claim 9, wherein an angle between the step surface and the first surface is between 2 ° and 3 °.

11. The unmanned aerial vehicle's frame subassembly of claim 7, wherein be equipped with first pilot hole on the step face, be equipped with the second pilot hole with first pilot hole looks adaptation on the clamping part.

12. The unmanned aerial vehicle's frame subassembly of claim 7, wherein there are two in each assembly groove, two assembly lugs set up along the length direction interval of assembly groove.

13. The unmanned aerial vehicle's frame subassembly of claim 12, wherein the first fixed part is provided with the boss that ends that extends towards in the mounting groove, the boss that ends is located the one end of the free end of mounting groove far away from the horn, the boss that ends with the horn end cooperation that ends.

14. The unmanned aerial vehicle's frame subassembly of claim 7, characterized in that, be equipped with the guide way on the lateral wall of assembly groove, the guide way extends along the depth direction of assembly groove, the upper end of guide way with the open mouth intercommunication of assembly groove, be equipped with on the clamping part with the guide part of guide way looks adaptation.

15. The unmanned aerial vehicle frame assembly of claim 7, wherein at least one of the bottom wall and the side wall of the mounting slot is provided with a weight-reduction slot.

16. The airframe assembly as defined in claim 1, wherein the first surface is parallel to the second surface.

17. An unmanned aerial vehicle, comprising: a frame assembly of the drone of any one of claims 1-16.