CN219295715U - Propeller protection mechanism - Google Patents

Abstract

The utility model discloses a propeller protection mechanism which comprises a motor arranged at the top of one end of a horn, wherein the output end of the motor is connected with a rotating shaft, a top linkage clamping sleeve of the rotating shaft is symmetrically arranged on the outer wall of the linkage clamping sleeve, clamping grooves are formed in the top of the linkage clamping sleeve, clamping seats are arranged in the inner cavity of each clamping groove in a clamping manner, movable grooves are formed in the inner cavities of two sides of each clamping seat, gear plates are arranged in the inner cavities of the movable grooves, fixing rods are arranged on the outer sides of the gear plates, fixing discs are fixedly connected to the outer ends of the fixing rods, and protection supports are fixedly connected to the outer sides of the fixing discs. Through setting up the protection support with screw blade parcel in the middle part, can protect screw blade, be equivalent to simultaneously at screw blade's outside has increased a bigger blade, can provide bigger pulling force when flying, can accelerate unmanned aerial vehicle body and climb speed, the angle of protection support is according to screw blade's angle and adjusts the wing that establishes, can adapt to different angles and use.

Description

Propeller protection mechanism

Technical Field

The utility model relates to the technical field of unmanned aerial vehicles, in particular to a propeller protection mechanism.

Background

The unmanned plane is called as unmanned plane for short, and is controlled by using radio remote control equipment and a self-provided program control device; the rotor unmanned aerial vehicle's screw sets up the outermost end at unmanned aerial vehicle upper boom generally, touches on the object easily in flight, damages the screw and causes unmanned aerial vehicle crash.

Existing propeller protection devices can be divided into three forms: the first is to use a protecting cover, the whole propeller is arranged in the protecting cover, and the protecting cover is made of a material with a cavity; this kind of protection mode can produce very big influence to the screw air current, and the safety cover weight is great, probably causes unmanned aerial vehicle unable flight or flight to control the difficulty, and its dismouting is also comparatively troublesome in addition. The second is to adopt an annular protection frame, wherein the annular protection frame and the propeller are positioned on the same horizontal plane, and the radius is larger than the rotating radius of the propeller, so as to provide protection for the rotating plane of the propeller; the third is to adopt L shape fender bracket, set up in the screw lower part, mainly provide the protection to screw rotation plane, and above-mentioned several screw protection machanism all is static state to can not rotate along with rotating along with the screw, although the protective structure volume can not influence unmanned aerial vehicle's flight, but unmanned aerial vehicle has all set up four at least rotor in general, and the weight of four sets of fender brackets plus unmanned aerial vehicle body can influence unmanned aerial vehicle's climbing speed.

Disclosure of Invention

The present utility model is directed to a propeller protection mechanism, which solves the above-mentioned problems in the prior art.

In order to achieve the above purpose, the present utility model provides the following technical solutions: the utility model provides a screw protection machanism, includes the motor of installing at horn one end top, the output of motor is connected with the axis of rotation, the top linkage cutting ferrule of axis of rotation, the outer wall symmetry of linkage cutting ferrule is provided with screw blade, the draw-in groove has been seted up at the top of linkage cutting ferrule, the inner chamber joint of draw-in groove is provided with the cassette, movable groove has been seted up to the inner chamber of cassette both sides, the inner chamber of movable groove is provided with the gear piece, the outside of gear piece is provided with the dead lever, the outer fixedly connected with fixed disk of dead lever, the outside fixedly connected with protection support of fixed disk.

Preferably, the fixed disk is a curved disk, and is attached to the notch of the outer wall of the clamping seat, the outer wall of the clamping seat is also provided with a thread groove communicated with the movable groove, and the inner cavity of the thread groove is in threaded connection with a limit screw.

Preferably, the outer wall of the linkage clamping sleeve is provided with a mounting opening, the position of the outer wall of the clamping seat corresponding to the mounting opening is provided with a limiting opening, and the inner cavity of the mounting opening is provided with a limiting fixing block.

Preferably, the limiting fixing block comprises a vertical plate and an external curved plate, the inner end of the vertical plate extends to the inner cavity of the limiting opening, and the two ends of the curved plate are provided with connecting holes and are fixed by screws.

Preferably, the positions of the thread grooves correspond to the positions of teeth of the outer ring of the gear plate, and the diameters of the thread grooves are equal to the maximum distance between the teeth.

Preferably, the protection support is a hollow metal frame, and a layer of metal net is arranged outside the metal frame.

Compared with the prior art, the utility model has the beneficial effects that:

1. this screw protection machanism, through setting up the protective bracket with screw blade parcel in the middle part, can protect screw blade, the protective bracket rotates synchronous rotation along with screw blade's rotation in the time of the protection, be equivalent to increasing a bigger blade in screw blade's outside, can provide bigger pulling-up force when flying, then can accelerate unmanned aerial vehicle body and climb speed, the angle of protective bracket can be according to screw blade's angle and adjust the setting, when adjusting, screw out spacing screw, then can rotate the protective bracket, the protective bracket drives the fixed disk, the dead lever, the gear piece rotates at the inner chamber of cassette, after adjusting the angle, screw up spacing screw again can fix, through spacing screw and the cooperation of gear piece use, the protective bracket can be adjusted to arbitrary angle and fixed, can adapt to the wing of different angles like this and use, increase application scope.

2. This screw protection machanism, when protecting the support installation, with cassette joint in the draw-in groove, at this moment, the cassette still can be at the draw-in groove internal free rotation, rotates the position of corresponding installing port with the spacing mouth in the cassette, then inserts the one end of perpendicular board in installing port and the spacing mouth through spacing fixed block and spacing, then the connecting hole that the rethread screw passed the curved plate both sides is fixed and can be installed and accomplish, this component simple structure, the installation and the dismantlement of being convenient for.

Drawings

FIG. 1 is a schematic diagram of the structure of the present utility model;

FIG. 2 is a schematic view of the protective bracket structure of the present utility model;

FIG. 3 is a schematic view of the structure of the linkage shaft sleeve of the present utility model;

FIG. 4 is a schematic view of the structure of the card holder of the present utility model;

FIG. 5 is a schematic view of a limiting block according to the present utility model.

In the figure: 1. a motor; 2. a rotating shaft; 3. linkage cutting ferrule; 301. a mounting port; 302. limiting fixed blocks; 4. propeller blades; 5. a clamping groove; 6. a clamping seat; 601. a limit opening; 7. a movable groove; 8. a gear plate; 9. a fixed rod; 10. a fixed plate; 11. a protective bracket; 12. a limit screw; 13. a metal net.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

Examples: referring to fig. 1-5, the present utility model provides a technical solution: the utility model provides a screw protection machanism, including installing motor 1 at horn one end top, motor 1's output is connected with axis of rotation 2, axis of rotation 2's top linkage cutting ferrule 3, linkage cutting ferrule 3's outer wall symmetry is provided with screw blade 4, draw-in groove 5 has been seted up at linkage cutting ferrule 3's top, the inner chamber joint of draw-in groove 5 is provided with cassette 6, movable groove 7 has been seted up to the inner chamber of cassette 6 both sides, movable groove 7's inner chamber is provided with gear piece 8, gear piece 8's outside is provided with dead lever 9, dead lever 9's outer fixedly connected with fixed disk 10, fixed disk 10's outside fixedly connected with protection support 11.

In this embodiment, unmanned aerial vehicle's screw blade 4 drives axis of rotation 2 through motor 1 and rotates, then drives screw blade 4 and rotates together, drives linkage cutting ferrule 3 and cassette 6 on upper portion simultaneously and rotates, and protective bracket 11 is fixed on cassette 6 and protective bracket 11 wraps up screw blade 4 at the middle part, can protect screw blade 4, and in the time of the protection, protective bracket follows screw blade's rotation synchronous rotation, has increased a bigger blade in screw blade's outside in the equivalent, can provide bigger pulling-up force when flying, can accelerate unmanned aerial vehicle body speed of climbing then.

Wherein, fixed disk 10 is curved disc, and the laminating is in the notch of cassette 6's outer wall, and the screw thread groove with movable groove 7 switch-on has still been seted up to cassette 6's outer wall, and the inner chamber threaded connection of screw thread groove has stop screw 12. The positions of the thread grooves correspond to the positions of teeth of the outer ring of the gear plate, and the diameters of the thread grooves are equal to the maximum distance between the teeth.

In this embodiment, according to the protection support 11 described above, the propeller blade 4 is protected, and the angle of the protection support 11 is adjustable, and can be adjusted according to the angle of the propeller blade 4, when adjusting, the limit screw 12 is screwed out, then the protection support 11 can be rotated, the protection support 11 drives the fixing disc 10, the fixing rod 9 and the gear piece 8 to rotate in the inner cavity of the clamping seat 6, after the angle is adjusted, the limit screw 12 is screwed down again to be fixed, and through the cooperation of the limit screw 12 and the gear piece 8, the protection support 11 can be adjusted to any angle and fixed, so that the wing with different angles can be adapted to use, and the application range is enlarged.

Wherein, the installing port 301 has been seted up to the outer wall of linkage cutting ferrule 3, and spacing mouth 601 has been seted up to the position that cassette 6 outer wall corresponds installing port 301, and the inner chamber of installing port 301 is provided with spacing fixed block 302, and spacing fixed block 302 comprises perpendicular board and outside curved plate, and the inner of perpendicular board extends to the inner chamber of spacing mouth 601, and the connecting hole has been seted up at the both ends of curved plate and adopts the screw fixation.

In this embodiment, when the protection bracket is installed, the clamping seat 6 is clamped in the clamping groove 5, at this time, the clamping seat 6 can also rotate freely in the clamping groove 5, the limiting opening 601 in the clamping seat 6 rotates to the position corresponding to the mounting opening 301, then one end of the vertical plate is inserted into the mounting opening 301 and the limiting opening to be limited through the limiting fixing block 302, and then the vertical plate is fixed through the connecting holes on two sides of the curved plate by screws, so that the installation is completed.

The protective bracket 11 is a hollow metal frame, and a layer of metal net 13 is arranged outside the metal frame.

In this embodiment, the metal mesh may block some objects with smaller volume outside, so as to further protect the propeller blade 4.

Working principle: when the protective bracket is installed, the clamping seat 6 is clamped in the clamping groove 5, at this time, the clamping seat 6 can rotate freely in the clamping groove 5, the limiting opening 601 in the clamping seat 6 rotates to the position corresponding to the installing opening 301, then one end of the vertical plate is inserted into the installing opening 301 and the limiting opening through the limiting fixing block 302 to be limited, then the installation can be completed through fixing through screws passing through connecting holes on two sides of the curved plate, the protective bracket 11 after the installation wraps the propeller blade 4 in the middle, the propeller blade 4 can be protected, the angle of the protective bracket 11 can be adjusted according to the angle of the propeller blade 4, during adjustment, the limiting screw 12 is screwed out, then the protective bracket 11 can rotate, the protective bracket 11 drives the fixing disc 10, the fixing rod 9 and the gear piece 8 to rotate in the inner cavity of the clamping seat 6, after the angle is adjusted, the limiting screw 12 is screwed down again, the limiting screw 12 and the gear piece 8 is used in a matched mode, the protective bracket 11 can be adjusted to any angle and is fixed, and the angle of the wing can be enlarged.

Although embodiments of the present utility model have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made therein without departing from the principles and spirit of the utility model, the scope of which is defined in the appended claims and their equivalents.

Claims (6)

1. The utility model provides a screw protection machanism, includes motor (1) of installing at horn one end top, its characterized in that: the motor is characterized in that the output end of the motor (1) is connected with a rotating shaft (2), a top linkage clamping sleeve (3) of the rotating shaft (2), propeller blades (4) are symmetrically arranged on the outer wall of the linkage clamping sleeve (3), clamping grooves (5) are formed in the top of the linkage clamping sleeve (3), clamping seats (6) are arranged in the inner cavity of the clamping grooves (5) in a clamping mode, movable grooves (7) are formed in the inner cavities of the two sides of the clamping seats (6), gear pieces (8) are arranged in the inner cavities of the movable grooves (7), fixing rods (9) are arranged on the outer sides of the gear pieces (8), fixing plates (10) are fixedly connected to the outer ends of the fixing rods (9), and protective supports (11) are fixedly connected to the outer sides of the fixing plates (10).

2. A propeller protection mechanism as claimed in claim 1, wherein: the fixing disc (10) is a curved disc and is attached to the notch of the outer wall of the clamping seat (6), the outer wall of the clamping seat (6) is also provided with a thread groove communicated with the movable groove (7), and the inner cavity of the thread groove is in threaded connection with a limit screw (12).

3. A propeller protection mechanism as claimed in claim 1, wherein: the outer wall of the linkage clamping sleeve (3) is provided with a mounting opening (301), the outer wall of the clamping seat (6) is provided with a limiting opening (601) corresponding to the mounting opening (301), and the inner cavity of the mounting opening (301) is provided with a limiting fixing block (302).

4. A propeller protection mechanism as claimed in claim 3, wherein: the limiting fixing block (302) comprises a vertical plate and an external curved plate, the inner end of the vertical plate extends to the inner cavity of the limiting opening (601), and connecting holes are formed in two ends of the curved plate and are fixed through screws.

5. A propeller protection mechanism as claimed in claim 2, wherein: the positions of the thread grooves correspond to the positions of teeth of the outer ring of the gear plate, and the diameters of the thread grooves are equal to the maximum distance between the teeth.

6. A propeller protection mechanism as claimed in claim 1, wherein: the protection support (11) is a hollow metal frame, and a layer of metal net (13) is arranged outside the metal frame.

Images