CN219257737U - Foldable unmanned aerial vehicle horn - Google Patents

Abstract

The utility model relates to a foldable unmanned aerial vehicle arm, belongs to the technical field of unmanned aerial vehicles, and solves the problem that the conventional unmanned aerial vehicle arm folding structure is unfavorable for meeting the requirements of convenient disassembly and assembly and firm installation of the arm. The foldable unmanned aerial vehicle horn comprises a foldable horn and a horn mounting seat; the folding arm comprises an arm folding part; the proximal end of the arm folding part is hinged with an arm mounting seat; the horn folding part locking part of the horn folding part and the mounting seat retaining part of the horn mounting seat are of a semi-surrounding sleeve structure with external threads; the two are coaxially connected and combined into a horn connecting part with a coherent external thread; the horn lock nut is locked at the horn connecting part, and the thread is a multi-thread with taper. The foldable unmanned aerial vehicle arm is simple in structure, can simultaneously meet the problems of convenient disassembly and assembly and firm installation of the arm, and can save storage and transportation space, take off immediately and fly safely of the unmanned aerial vehicle.

Description

Foldable unmanned aerial vehicle horn

Technical Field

The utility model relates to the technical field of unmanned aerial vehicles, in particular to a foldable unmanned aerial vehicle arm.

Background

In recent years, unmanned aerial vehicle technology development is rapid, unmanned aerial vehicles are various in variety and wide in application field. The following requirements for unmanned aerial vehicle transportation and storage space conservation are remarkable. The common practice is to fold or disassemble parts and components occupying a large storage space of the unmanned aerial vehicle, so that the unmanned aerial vehicle can be transported and stored conveniently. Wherein, unmanned aerial vehicle horn is the important part that needs folding or dismantlement.

The conventional horn has the following storage modes: the horn is disassembled, the horn is folded, buckled and locked, the horn is folded, and the nut is locked, or the horn is not folded or disassembled.

The problems of complicated disassembly, inconvenience in various circuit management, poor installation stability and the like of various storage modes exist respectively, so that not only is the disassembly and assembly operation complicated, but also water leakage and electricity leakage are easy to cause, the installation stability is unstable and the like. Not only has high requirements on the professionality of operators and wastes time and energy, but also easily causes the unmanned aerial vehicle to have safety accidents.

How to improve the reliability, the sealing performance and the convenience of the unmanned aerial vehicle horn folding process is important to effectively save the storage and transportation space and meet the requirement of the unmanned aerial vehicle on instant starting and safe flight.

Disclosure of Invention

In view of the above analysis, the utility model aims to provide a foldable unmanned aerial vehicle horn, which is used for solving the technical problems that the folding structure of the unmanned aerial vehicle horn is not beneficial to simultaneously meeting the convenience of disassembly and assembly of the horn and firm installation.

The utility model is realized by the following technical scheme:

a foldable unmanned aerial vehicle horn comprises a foldable horn and a horn mounting seat; the folding horn comprises a horn folding part; the proximal end of the arm folding part is hinged with an arm mounting seat; the horn folding part comprises a horn locking nut and a horn folding part locking part; the locking part of the folding part of the horn is of a semi-surrounding sleeve structure with external threads; the horn mount comprises a mount holding part which is of a semi-surrounding sleeve structure with external threads; the horn folding part and the mounting seat holding part are coaxially connected and combined into a horn connecting part with a complete sleeve structure; a coherent external thread is formed on the horn connecting portion; the external threads of the horn connecting portion are matched with the internal threads of the horn lock nut, and the external threads of the horn connecting portion and the internal threads of the horn lock nut are multi-thread threads with taper.

Further, the horn folding part further comprises a horn folding rotating shaft part and a horn folding part positioning sleeve.

Further, the arm folding rotating shaft part is provided with an arm folding part rotating shaft hole; the positioning sleeve of the folding part of the horn is arranged concentrically with the locking part of the folding part of the horn.

Further, the arm folding rotating shaft part is communicated with the arm folding part positioning sleeve; and a horn folding part positioning boss is arranged between the horn folding part positioning sleeve and the horn folding part positioning sleeve.

Further, the horn folding part further comprises a horn folding part rotation limiting block.

Further, the horn folding part rotation limiting block is positioned at the joint of the horn folding part positioning sleeve and the horn folding part locking part

Further, the horn folding part further comprises a horn folding part fastening part.

Further, the horn folding portion fastening portion radially penetrates through the horn folding portion locking portion and the horn folding portion positioning sleeve.

Further, the horn lock nut also comprises a nut positioning hole, a damping limit groove and a pre-tightening limit groove.

Further, the pre-tightening limit groove is arranged on the inner column surface of the nut positioning hole; the damping limiting groove is formed in the nut inner threaded end of the nut positioning hole and nut inner threaded connection portion, and the machine arm installation base comprises an installation base machine body connection portion, an installation base connection portion and an installation base machine arm connection portion which are connected in sequence and are communicated inside.

Further, the mount arm connecting portion includes a mount rotating shaft portion and the mount holding portion; the mounting seat rotating shaft part is provided with a mounting seat mounting hole; the mounting seat retaining part is provided with mounting seat external threads.

Further, the mounting seat retaining part is of a semi-surrounding sleeve structure; the center angle of the semi-surrounding sleeve structure of the mounting seat retaining part is less than or equal to 180 DEG

Further, the device also comprises a horn rubber ring.

Further, the horn rubber ring is arranged inside the connecting part of the mounting seat, and the horn rubber ring comprises a horn rubber ring buffer groove and a waterproof blade.

Further, the motor arm vibration damping sleeve is also included.

Further, the horn vibration damping sleeve is arranged outside the connecting part of the mounting seat, and comprises an outer clamping part of the horn vibration damping sleeve and an inner clamping part of the horn vibration damping sleeve.

Compared with the prior art, the utility model has at least the following beneficial effects:

the folding part of the foldable unmanned aerial vehicle arm is fixedly connected with the body part and is hinged with the arm pipe; when the horn folding part and the horn mounting seat are coaxial, a complete horn connecting part with the external threads of the horn is formed; the connecting part of the unmanned aerial vehicle arm can be screwed with the internal thread of the nut, so that the unmanned aerial vehicle arm is firmly connected with the body part; when the screw connection of the horn lock nut and the horn connecting part is released, the horn folding part hinged on the horn mounting seat rotates to drive the horn pipe and the propeller part connected with the horn pipe to rotate to the periphery of the machine body part, so that the storage and transportation volume of the unmanned aerial vehicle is effectively reduced. The foldable unmanned aerial vehicle arm is simple in structure, reliable in folding and unfolding structure, stable in position and convenient to operate. The unmanned aerial vehicle storage and transportation space saving, the unmanned aerial vehicle instant start and the safe flight need are facilitated.

The above technical schemes can be mutually combined to realize more preferable combination schemes. Additional features and advantages of the utility model will be set forth in the description which follows, and in part will be obvious from the description, or may be learned by practice of the utility model. The objectives and other advantages of the utility model may be realized and attained by the structure particularly pointed out in the written description and drawings.

Drawings

The drawings are only for purposes of illustrating particular embodiments and are not to be construed as limiting the utility model, like reference numerals being used to refer to like parts throughout the several views.

FIG. 1 is a partial exploded view of a mounting structure of a foldable unmanned aerial vehicle horn mounted to a fuselage section of the present utility model;

fig. 2 is a schematic diagram of the whole structure of the foldable unmanned aerial vehicle arm installed on the body;

FIG. 3 is a partial exploded view of the horn structure of the foldable unmanned aerial vehicle of the present utility model;

FIG. 4 is a sectional view taken along the direction E-E in FIG. 2;

FIG. 5 is a schematic view of a folding portion of a horn according to the present utility model;

FIG. 6 is a cross-sectional view taken in the direction F-F of FIG. 5;

FIG. 7 is an exploded view of the horn lock nut assembly of the present utility model;

FIG. 8 is an axial cutaway schematic view of the horn lock nut assembly of FIG. 7 after assembly;

FIG. 9 is an exploded view of the horn mount assembly and attached fuselage section of the present utility model;

FIG. 10 is a schematic view of a mounting base for a horn according to the present utility model;

FIG. 11 is a schematic view of the rubber ring structure of the arm of the present utility model;

FIG. 12 is a schematic view of the structure of the damping sleeve of the arm of the present utility model;

fig. 13 is a schematic structural view of a foldable unmanned aerial vehicle arm in a maximum folding position of a fuselage section according to the present utility model.

Reference numerals:

1. a body section; 11. a fuselage section housing mounting hole; 2. a folding arm; 21. a horn tube; 211. the mounting end of the arm blade; 212. a horn limit groove; 213. a horn fastening hole; 22. a horn lock nut; 221. locking the internal thread by the nut; 222. a pre-tightening limit groove; 223. damping limit groove; 224. a nut turning mark; 225. a nut positioning hole; 23. a horn folding portion; 231. folding rotating shaft part of the arm; 2311. a rotating shaft hole of the folding part of the arm; 232. a locking part of the folding part of the arm; 2321. the folding part of the arm locks the guiding part; 2322. external threads of the folding part of the arm; 233. positioning sleeve of folding part of the arm; 234. positioning boss of folding part of the arm; 235. the folding part of the arm rotates a limiting block; 2351. the arm folding part rotates a limiting surface; 236. a arm folding portion fastening portion; 3. a horn mounting base; 31. a mount body connection; 311. a machine body connecting hole of the machine arm mounting seat; 32. a mount arm connection; 321. a mounting seat rotating shaft portion; 3211. mounting holes of the mounting seats; 322. a mount holder; 3221. an external thread of the mounting seat; 3222. an external thread of the mounting seat holding part; 33. a mounting seat connecting part;

41. pulling a rivet; 42. embedding a sleeve; 43. loosening the nut; 44. a spindle screw; 45. pre-tightening the O-shaped ring; 46. damping O-rings; 47. a horn vibration damping sleeve; 471. an outer clamping part of the arm vibration damping sleeve; 472. an inner clamping part of the arm vibration damping sleeve; 48. arm rubber ring; 481. the small end of the rubber ring of the arm; 482. the large end of the horn rubber ring; 4821. a buffering groove of the rubber ring of the arm; 483. waterproof blade.

Detailed Description

The following detailed description of preferred embodiments of the utility model is made in connection with the accompanying drawings, which form a part hereof, and together with the description of the embodiments of the utility model, are used to explain the principles of the utility model and are not intended to limit the scope of the utility model.

The technical scheme of the present utility model is described in more detail with reference to fig. 1 to 13:

the present embodiment sets: d is the minimum inner diameter of the arm folding spindle 231, and A, B and C are both angle values; the end of each part close to the body part 1 is a near end, and the end of each part far away from the body part is a far end.

As shown in fig. 1 and 13, the foldable unmanned aerial vehicle horn of the present embodiment includes a foldable horn 2 and a horn mount 3. The proximal end of the horn mount pad 3 is connected with the fuselage portion 1 of the unmanned aerial vehicle, the distal end of the horn mount pad 3 is connected with the proximal end of the folding horn 2, and the distal end of the folding horn 2 is connected with the propeller portion of the unmanned aerial vehicle.

As shown in fig. 2 and 3, the folding horn 2 of the present embodiment includes a horn tube 21, a horn lock nut 22, and a horn fold 23.

As shown in fig. 1 and 4, the proximal end of the horn fold 23 is hinged to the horn mount 3; the distal end of the horn fold 23 is connected to the main tube portion of the proximal end of the horn tube 21.

In the unmanned aerial vehicle storage and transportation state, the horn lock nut 22 is connected on the horn pipe 21 in a sliding manner.

As shown in fig. 5 and 6, the horn folding portion 23 includes a horn folding rotation shaft portion 231, a horn folding portion locking portion 232, and a horn folding portion positioning sleeve 233.

Specifically, the arm folding pivot 231 has a semi-cylindrical pillow block structure, and an axial arm folding pivot hole 2311 is provided thereon for hinging the arm mount 3.

Preferably, the hinge shaft is smoothly rotated in the insert sleeve 42 by providing the insert sleeve 42 in the arm fold shaft hole 2311.

The semi-cylindrical pillow block structure of the arm folding rotating shaft 231 is smoothly connected to the outside of the generatrix of the outer ring of the arm folding positioning sleeve 233 and is located at the front end of the arm folding positioning sleeve 233. The arm folding pivot portion 231 and the arm folding portion positioning sleeve 233 are integrated.

The maximum diameter of the outer circle of the arm folding portion positioning sleeve 233 is located at a position far from the arm folding rotating shaft portion 231, and the maximum diameter D of the outer circle of the arm folding portion positioning sleeve 233 is identical to the outer diameter of the straight tube portion of the arm tube 21. The outer circle maximum diameter D of the horn folding portion positioning sleeve 233 is provided with a stepped shaft to the distal end, the stepped shaft diameter of the distal end of the horn folding portion positioning sleeve 233 is equal to the inner diameter of the straight tube portion of the horn tube 21, and the stepped shaft of the distal end of the horn folding portion positioning sleeve 233 is used for positioning the inner wall surface of the horn tube 21.

Preferably, the outer side of the proximal end of the arm folding part positioning sleeve 233 is provided with an outer guiding part of the rotating shaft of the arm folding part, which is tightened along the outer edge and has a cone angle of B; the arm folding portion positioning sleeve 233 is provided with an open arm folding portion rotating shaft inner guide portion with a cone angle C from the maximum inner diameter D to both ends, so that the arm folding portion 23 can be conveniently screwed or unscrewed relative to the rotating arm mounting seat 3 and the processing is convenient.

Further preferably, B <10 °, C <5 °.

Preferably, the inner hole of the arm folding portion positioning sleeve 233 is provided as an outwardly open tapered surface with a taper angle C to facilitate insertion and positioning of the arm tube 21 in the positioning portion of the annular inner ring of the arm folding rotating shaft portion 231.

Specifically, the locking part 232 of the folding part of the horn is a semi-surrounding sleeve structure, and the outer arc surface of the semi-surrounding sleeve structure is provided with external threads and is the external threads 2322 of the folding part of the horn; the arm folding portion locking portion 232 and the arm folding portion positioning sleeve 233 are concentrically arranged and located on the same side of the arm folding rotating shaft portion 231, and the distance between the two is equal to the wall thickness of the arm tube 21.

Specifically, the outer side of the end of the arm folding portion locking portion 232 is also provided with an arm folding portion locking guide portion 2321 with a taper angle B, so as to facilitate insertion of the arm locking nut 22.

Preferably, the horn fold external thread 2322 is a multi-start thread with a taper, specifically a 4-start thread with a taper angle a.

Further preferably, a <10 °.

The multi-thread setting can make horn lock nut 22 rotate the round and realize the effect of many circles to promote and horn lock nut 22 rotational speed reaches quick detach, fast-assembling horn, promotes horn dismouting speed and the technological effect of use convenience.

The taper angle A ensures that the arm lock nut 22 is loosened and smoothly screwed in before entering the preset position in the initial stage, and reduces the machining tolerance difficulty.

Specifically, the middle part of the arm folding part locking part 232 is provided with an arm folding part fastening part 236, and the arm folding part fastening part 236 is a screw hole structure which radially penetrates through the arm folding part locking part 232 and the arm folding part positioning sleeve 233 and is used for locking the positions of the arm folding part locking part and the arm folding part positioning sleeve 233 after the arm pipe 21 is inserted into the arm folding part positioning sleeve 233.

Specifically, a horn folding portion positioning boss 234 is provided at the root portion between the horn folding portion locking portion 232 and the horn folding portion positioning sleeve 233, and is used for positioning and mounting the horn tube 21 in cooperation with the corresponding structure of the horn tube 21, so that the horn tube 21 can be conveniently inserted into the correct position in the horn folding portion positioning sleeve 233 in a correct direction at one time, and the correct position of the propeller position connected with the horn tube 21 is ensured.

The arm mounting seat 3 comprises a mounting seat retaining part 322, and the mounting seat retaining part 322 is of a semi-surrounding sleeve structure with external threads; when the folding arm 2 is coaxially connected with the arm mounting seat 3, the arm folding part 23 and the mounting seat holding part 322 form an arm connecting part with a complete sleeve structure; a coherent external thread is formed on the connecting part of the arm; the external threads of the horn connecting portion and the nut internal threads 221 of the horn lock nut 22 are multi-start threads with matching taper.

Specifically, the horn folding portion 23 further includes a horn folding portion rotation stopper 235. The arm folding portion rotation limiting block 235 is located at the joint of the arm folding portion positioning sleeve 233 and the arm folding portion locking portion 232, and the arm folding portion rotation limiting block 235 is provided with an arm folding portion rotation limiting surface 2351.

As shown in fig. 13, when the arm folding portion 23 drives the arm tube 21 to rotate around the hinge shaft to a certain angle and is wrapped around the side wall of the body portion 1, the arm folding portion rotation limiting surface 2351 contacts with the edge of the body arm connecting portion of the body portion 1, and the folding arm 2 is limited and does not rotate any more.

Fig. 13 shows only the limit folding angle of the folding arm 2, but the folding angle of the folding arm 2 is not limited to this angle, and the folding arm 2 may have a different folding angle.

Preferably, the shape of the rotation limiting surface 2351 is designed according to the shape of the contact fuselage horn connection. Specifically, the part where the rotation limiting surface 2351 and the fuselage horn connecting part are contacted at first is designed into a tangential cambered surface relatively so as to relieve stress damage at the moment of contact; the contact part behind the rotation limiting surface 2351 and the machine body arm connecting part is designed randomly, so that the folding machine arm 2 is attached to the side wall of the machine body part 1 at the maximum corner position, and the stability of the relative position is ensured.

As shown in fig. 3, the main structure of the horn tube 21 is carbon tube.

Specifically, the proximal end of the horn tube 21 is provided with a horn stopper groove 212 and a horn tightening hole 213. The arm limiting groove 212 is used for clamping and fixing the arm folding part positioning boss 234 and positioning the position relationship between the arm pipe 21 and the arm folding part 23; the horn fastening holes 213 are for mating with the horn fold fastening portions 236 for securing the positional relationship of the horn tube 21 and the horn fold 23 by fasteners.

Specifically, the distal end of the horn tube 21 is provided with a horn blade mounting end 211. The structure of the horn blade mounting end 211 matches the mounting structural design of the propeller portion.

As shown in fig. 1, 3 and 13, in the storage and transportation state of the unmanned aerial vehicle, the horn lock nut 22 is slidably connected to the middle carbon tube of the horn tube 21.

As shown in fig. 2 and 4, in the starting and flying state of the unmanned aerial vehicle, the horn lock nut 22 is screwed to the assembly connected to the horn fold 23 and the horn mount 3.

Preferably, the horn fold 23 is secured to the proximal end of the horn tube 21 by plastic injection molding or adhesive, and is screwed to the horn fold fastening portion 236 by a blind rivet 41, securing the horn fold 23 to the horn tube 21.

The secondary fixing mode can effectively prevent the horn tube 21 from falling off, ensure the structural integrity of the horn folding part 23 and the horn tube 21, and ensure that the horn tube 21 and the horn folding part 23 have good following performance.

As shown in fig. 7 and 8, the horn lock nut 22 is of a ring sleeve type structure, and comprises a nut internal thread 221, a pre-tightening limit groove 222, a damping limit groove 223 and a nut positioning hole 225 which are arranged in the ring sleeve in sequence, and further comprises a nut turning mark 224 arranged outside the ring sleeve, wherein the nut turning mark 224 is beneficial to an operator to quickly and correctly operate at any station, and the usability of the foldable unmanned aerial vehicle horn is reflected.

The diameter of the inner column surface arranged in the nut positioning hole 225 is not smaller than the outer diameter D of the horn tube 21; the damping limit groove 223 is arranged on the nut positioning hole 225, and the pre-tightening limit groove 222 is arranged at the tail end of the nut internal thread 221.

The damping O-shaped ring 46 is tightly matched in the damping limiting groove 223, the damping O-shaped ring 46 can effectively prevent the horn lock nut 22 from sliding on the middle carbon tube of the horn tube 21 in a non-locking state, and the horn lock nut 22 can be stabilized on the middle carbon tube of the horn tube 21 in a storage state; and, in the locking state, the arm lock nut 22 can be effectively positioned at the inner guide part of the rotating shaft of the arm folding part 23, so as to be beneficial to keeping the structural stability of the flying state of the unmanned aerial vehicle.

The pre-tightening O-ring 45 is arranged in the pre-tightening limiting groove 222; the pre-tightening O-shaped ring 45 can increase the pre-tightening force between the horn lock nut 22 and the combination of the horn folding part 23 and the horn mounting seat 3 in the locking process, so that the horn lock nut 22 is ensured not to loosen, and the structural stability of the unmanned aerial vehicle in the flight state is maintained.

Preferably, the pre-tightening O-shaped ring 45 and the damping O-shaped ring 46 of the embodiment are aviation rubber rings, so that the wear is small and the service life is long. Further preferably, the nut internal thread 221 is a tapered multi-start thread matching the horn fold external thread 2322, in particular a 4-start thread with a taper angle a.

In the installed state, the nut internal thread 221 is tapered in the opposite direction to the horn fold external thread 2322. After the installation state, the screw pair is tightly matched.

As shown in fig. 9, the body part 1 of the present embodiment is provided with a body arm connection part, and the body arm connection part is provided with a plurality of body part housing mounting holes 11 for connecting the arm mounting base 3.

As shown in fig. 10, the arm mount 3 includes a mount body connecting portion 31, a mount connecting portion 33, and a mount arm connecting portion 32 which are connected in this order and penetrate inside. The inner wall surface of the mounting seat connecting part 33 is provided with an organic arm rubber ring 48, and the outer wall surface of the mounting seat connecting part 33 is provided with an organic arm vibration damping sleeve 47.

Specifically, the mount body connecting portion 31 is used to connect the body portion 1. The mount body connection 31 is structurally matched to the body horn connection design. The mount body connecting portion 31 is provided with a horn mount body connecting hole 311 that matches the body housing mounting hole 11. Unmanned aerial vehicle horn mount pad 3 passes through fuselage connection fastening assembly fixed connection horn mount pad 3.

For unmanned aerial vehicles with larger transport capacity, the unmanned aerial vehicle arm mounting seat 3 of the embodiment can be preferably a metal piece, and the body connection fastening component is a bolt or a combination of the bolt and the nut. The two ends of the connecting hole 311 of the machine body of the machine arm installation seat are provided with internal threads.

For small unmanned aerial vehicles, the horn mount 3 of the present embodiment is preferably an injection molded part. The machine body connecting and fastening assembly is composed of knurled copper studs, knurled copper sleeves and screws, wherein the two ends of the knurled copper studs are provided with inner screw holes.

Specifically, firstly, embedding a knurled copper stud and a knurled copper sleeve in a machine arm installation seat body connecting hole 311 of a machine arm installation seat 3 in a plastic injection molding mode; then, the arm mounting seat 3 is buckled on the arm connecting part of the body part 1; the horn mount 3 is fastened to the fuselage horn connection from both sides with screws.

The mount arm connecting portion 32 includes a mount rotating shaft portion 321 and a mount holding portion 322, and the mount holding portion 322 has a half-surrounding sleeve structure. The mount retaining portion 322 has mount external threads 3221 provided on the outer side of the semi-surrounding sleeve structure.

Preferably, the center angle of the mount retaining portion 322 semi-surrounds the sleeve structure is 180 ° or less.

Preferably, the mount external threads 3221 are tapered multi-start threads, specifically 4-start threads with a taper angle A.

Preferably, in the installation state, the installation seat holding part 322 and the horn folding part locking part 232 which are both of a semi-enclosed sleeve structure are spliced into a complete ring sleeve structure, and the installation seat external threads 3221 and the horn folding part external threads 2322 form continuous horn connecting external threads with consistent taper directions.

In the installation state, the taper of the split horn connecting external thread is opposite to that of the nut internal thread 221 arranged on the horn locking nut 22, so that the horn connecting external thread and the nut internal thread can be connected in a matched mode.

The mount rotating shaft portion 321 is an ear plate structure with a mount mounting hole 3211, and 2 mount rotating shaft portions 321 are mirror-symmetrically disposed on the end side of the mount holding portion 322 near the mount connecting portion 33.

The distance of the 2 mount-rotating shaft portion 321 pieces is equal to the height of the arm-folding rotating shaft portion 231. In the mounted state, 2 opposite mounting seat mounting holes 3211 are communicated with the arm folding portion rotating shaft hole 2311, and an embedded sleeve 42 is arranged in the mounting seat mounting holes 3211.

As shown in fig. 1, the arm folding portion 23 is preferably rotatably hinged to the arm mounting base 3 through 2 mounting base mounting holes 3211 and the inlay sleeve 42 by using a rotation shaft screw 44 and a loosening nut 43. Wherein the middle part of the rotating shaft screw 44 is of a polished rod structure.

As shown in fig. 4, the mount connection portion 33 is used to connect the mount body connection portion 31 and the mount arm connection portion 32 through a resilient member transition. The elastic member includes a horn rubber ring 48 provided on the inner wall surface of the mount connection part 33 and a horn vibration damping sleeve 47 provided on the outer wall surface of the mount connection part 33.

The arm vibration damping sleeve 47 is used for elastic contact connection of the mounting seat connecting part 33 and the body arm connecting part arranged on the body part 1 shell.

As shown in fig. 12, the arm damping sleeve 47 has a ring groove structure with two side wall surfaces, which are an arm damping sleeve outer clamping part 471 located on the inner wall surface of the housing of the body part 1 and an arm damping sleeve inner clamping part 472 located on the outer wall of the housing of the body part 1.

The horn vibration damping sleeve 47 prevents liquid outside the folding horn 2 from entering the inside of the body part 1 at the connection position with the body part 1 in a clamping manner, improves the waterproof performance, and effectively protects the use safety of electric elements inside the body.

As shown in fig. 4 and 11, the horn rubber ring 48 is of a stepped shaft sleeve structure, and comprises a small end 481 of the horn rubber ring and a large end 482 of the horn rubber ring, a plurality of fan-shaped waterproof blades 483 arranged inside a stepped shaft base of the horn rubber ring 48, and a horn rubber ring buffer groove 4821 arranged on the side wall surface of the large end 482 of the horn rubber ring.

The circumference of the waterproof blades 483 in the shape of a plurality of fan blades is suspended, the middle part of the waterproof blades is hollowed, and on the premise of not losing elastic deformation, fluid is prevented from entering the body part 1 from the inside of the folding horn 2, so that the waterproof performance of the folding unmanned aerial vehicle horn to the body part 1 is further improved.

The plurality of horn rubber ring buffer grooves 4821 enable the horn rubber rings 48 to have larger elastic deformation under the same mass, so that impact force in the screwing-in and screwing-out process of the horn folding part 23 relative to the horn mounting seat 3 can be effectively relieved, and the structural safety of the unmanned aerial vehicle is protected.

The horn rubber ring 48 is installed in an interference mode in the axial direction and the radial direction, namely, the outer side face of the horn rubber ring 48 is used for limiting the extrusion of the horn rubber ring 48 at the position of the horn mounting seat 3, and the shaft end of the large end 482 of the horn rubber ring is extruded to abut against the proximal end of the horn folding part 23.

The horn rubber ring 48 is limited between the horn folding part 23 and the fuselage part 1 from the internal interference, so that the vibration transferred from the folding horn 2 to the fuselage part 1 can be reduced, and the safety of the unmanned aerial vehicle structure and electric elements in the unmanned aerial vehicle structure can be improved.

In the foldable unmanned aerial vehicle horn of this embodiment, the horn mount pad 3 adopts the mode of half surrounding to enclose into complete external screw thread structure with horn folded portion 23 to lock through horn lock nut 22. This connection structure sets up the fit clearance that can eliminate between each connecting piece, improves the assembly rigidity between the collapsible unmanned aerial vehicle horn, between collapsible unmanned aerial vehicle horn and the fuselage portion 1 to reduce the folding unmanned aerial vehicle horn and rock, improve the security of unmanned aerial vehicle flight.

Meanwhile, the horn lock nut 22 is matched with the horn mounting seat 3 and the multiple inclined planes of the horn folding part 23, so that the contact surface is increased, the local stress concentration is reduced, and the strength requirement of the foldable unmanned aerial vehicle horn is ensured.

The present utility model is not limited to the above-mentioned embodiments, and any changes or substitutions that are easily contemplated by those skilled in the art within the scope of the present utility model are intended to be included in the scope of the present utility model. Meanwhile, all equipment or facilities provided with the device for expanding the application field and producing compound technical effects belong to the protection scope of the method.

Claims (10)

1. The foldable unmanned aerial vehicle horn is characterized by comprising a foldable horn (2) and a horn mounting seat (3);

the folding horn (2) comprises a horn locking nut (22) and a horn folding part (23); the near end of the arm folding part (23) is hinged with the arm mounting seat (3);

the arm folding part (23) comprises an arm folding part locking part (232); the arm folding part locking part (232) is of a semi-surrounding sleeve structure with external threads;

the horn mounting seat (3) comprises a mounting seat retaining part (322), and the mounting seat retaining part (322) is of a semi-surrounding sleeve structure with external threads;

the horn folding part (23) and the mounting seat holding part (322) are coaxially connected and combined into a horn connecting part with a complete sleeve structure; a coherent external thread is formed on the horn connecting portion;

the external threads of the horn connecting portion are matched with the internal threads of the horn lock nut (22) and are multi-thread threads with taper.

2. The foldable unmanned aerial vehicle horn according to claim 1, wherein the horn fold (23) further comprises a horn fold pivot portion (231) and a horn fold positioning sleeve (233).

3. The foldable unmanned aerial vehicle horn according to claim 2, wherein the horn folding spindle part (231) is provided with a horn folding spindle hole (2311); the horn folding part positioning sleeve (233) is arranged concentrically with the horn folding part locking part (232).

4. A foldable unmanned aerial vehicle horn according to claim 3, wherein the horn fold (23) further comprises a horn fold rotation stopper (235).

5. The foldable drone arm of claim 4, wherein the horn fold (23) further comprises a horn fold staple (236).

6. The foldable unmanned aerial vehicle horn according to claim 1, wherein the horn lock nut (22) further comprises a nut positioning hole (225), a damping limit groove (223) and a pre-tightening limit groove (222).

7. A foldable unmanned aerial vehicle horn according to any of claims 1 to 6, wherein the horn mount (3) comprises a mount body connection (31), a mount connection (33) and a mount horn connection (32) connected in this way and internally penetrated.

8. The foldable drone arm of claim 7, wherein the mount arm connection (32) includes a mount rotation shaft portion (321) and the mount retention portion (322); the mounting seat rotating shaft part (321) is provided with a mounting seat mounting hole (3211); the mount holding part (322) is provided with mount external threads (3221).

9. The foldable unmanned aerial vehicle horn of claim 8, further comprising a horn rubber ring (48).

10. The foldable unmanned aerial vehicle horn according to claim 9, further comprising a horn vibration damping sleeve (47).

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