CN219428379U - Unmanned aerial vehicle screw with function of making an uproar falls - Google Patents

Abstract

The utility model discloses an unmanned aerial vehicle propeller with a noise reduction function, which comprises an unmanned aerial vehicle and a plurality of propellers, wherein the propellers are respectively arranged on the periphery of the unmanned aerial vehicle, one end parts of the propellers are respectively sleeved with a sound-absorbing cotton cylinder, the outer walls of the sound-absorbing cotton cylinders are respectively provided with a plurality of fixing pads, one ends of the fixing pads are respectively movably inserted and connected with a silica gel pad, one end of one part of the silica gel pads is provided with a first protection ring, and one end of the other part of the silica gel pad is provided with a second protection ring.

Description

Unmanned aerial vehicle screw with function of making an uproar falls

Technical Field

The utility model relates to the technical field of unmanned aerial vehicle propellers, in particular to an unmanned aerial vehicle propeller with a noise reduction function.

Background

The unmanned plane for surveying and mapping is a unmanned plane for surveying and mapping, which is operated by using a radio remote control device and a self-provided program control device, or is operated completely or intermittently and autonomously by a vehicle-mounted computer, and the unmanned plane has larger noise due to the high-speed rotation of a propeller, and part of reasons are that the motor support arm of the unmanned plane is flat, and wind resistance and noise generated when the propeller rotates at a high speed are larger.

The utility model discloses a survey and drawing unmanned aerial vehicle screw of making an uproar in the patent of publication number CN211943719U, including the unmanned aerial vehicle body, horizontal fixedly connected with four support arms that are symmetric distribution all around of unmanned aerial vehicle body lateral wall is located support arm upper portion is kept away from the vertical fixedly connected with motor that makes an uproar in position of unmanned aerial vehicle body, the transmission axostylus axostyle up end fixedly connected with screw of motor.

In the technology, the high-frequency sound waves are generated by the high-speed rotation of the propeller, so that the noise of the propeller is reduced; and inhale the sound cover with support arm and all set up to diamond structure, greatly reduced windage and wind noise, but unmanned aerial vehicle can appear the poor condition of atress control when falling to ground, the screw is just big to the impact force on ground this moment to the surface is sunken serious with the damaged condition, has reduced the life of screw, can fly to collapse around when the screw splits simultaneously, and the screw can strike the accidental injury staff, so innovate in this technique.

Disclosure of Invention

The utility model aims to provide an unmanned aerial vehicle propeller with a noise reduction function, so as to solve the problems that the collision force of the propeller on the ground is large, the surface is seriously concave and damaged, the service life of the propeller is shortened, the propeller can fly to the periphery when being split, and workers can be accidentally injured by collision of the propeller.

In order to achieve the above purpose, the present utility model provides the following technical solutions: unmanned aerial vehicle screw with function of making an uproar falls, including unmanned aerial vehicle and a plurality of screw, a plurality of the screw sets up around unmanned aerial vehicle respectively, a plurality of the equal cover of tip of screw is equipped with inhales the cotton section of thick bamboo of sound, and is a plurality of inhale the outer wall of the cotton section of thick bamboo of sound all is provided with a plurality of fixed pads, a plurality of the equal activity of one end of fixed pad is alternates and is connected with the silica gel pad, wherein a portion the one end of silica gel pad all is provided with first protection ring, another portion the one end of silica gel pad all is provided with the second protection ring, a plurality of the bottom of second protection ring all is provided with a plurality of backing bars, a plurality of the equal activity of one end of backing bar is alternated and is connected with the telescopic link, a plurality of the one end of telescopic link all is provided with the bottom plate.

As a preferable technical scheme of the utility model, the plurality of bottom plates are arranged at equal intervals, and the bottom surfaces of the plurality of bottom plates are made of sponge.

As a preferable technical scheme of the utility model, one end parts of the plurality of support rods are sleeved with a silica gel disc, and the bottom ends of the plurality of silica gel discs are provided with a plurality of rubber strips.

As a preferable technical scheme of the utility model, the diameters of the silica gel discs are larger than those of the support rods.

As a preferable technical scheme of the utility model, the top ends of the bottom plates are fixedly provided with a plurality of rubber discs, and the diameters of the rubber discs are smaller than the diameters of the bottom plates.

As a preferable technical scheme of the utility model, auxiliary rods are fixedly arranged at the top ends of the plurality of first protection rings, and L-shaped pipes are fixedly arranged at one ends of the plurality of auxiliary rods.

As a preferable technical scheme of the utility model, one ends of the L-shaped pipes are fixedly provided with buffer discs, and the bottom ends of the buffer discs are provided with buffer rods.

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

1. according to the unmanned aerial vehicle propeller with the noise reduction function, the sound-absorbing cotton cylinder, the silica gel pad, the second protection ring, the supporting rod, the telescopic rod and the bottom plate are arranged, the silica gel pads are made of silica gel, so that stress can be gradually deformed, the first protection ring and the second protection ring can wrap the outer surface of the sound-absorbing cotton cylinder, the deformation resistance of the outer surface of the propeller is improved, a large number of holes are formed in the sound-absorbing cotton cylinder, noise generated by rotation of the propeller is absorbed by the holes, the sound energy is converted into potential energy, and therefore noise generated by the propeller can be reduced.

2. According to the unmanned aerial vehicle propeller with the noise reduction function, the rubber strip, the rubber disc, the auxiliary rod, the buffer disc and the buffer rod are arranged, the buffer disc is located at the top of the propeller, the buffer rod rotates at the bottom of the buffer disc, the bottom of the buffer rod is connected with the top of the propeller, the rotation of the propeller drives the buffer rod to rotate, the stability of the propeller during rotation can be further enhanced, the buffer disc can cover the top of the rotating propeller, and the phenomenon that the propeller directly impacts the periphery when upwards impacts after being broken is avoided.

Drawings

FIG. 1 is a schematic elevational view of the present utility model;

FIG. 2 is an enlarged view of the utility model at A in FIG. 1;

FIG. 3 is a schematic partial elevation view of the present utility model;

fig. 4 is an exploded view of a portion of the present utility model.

In the figure: 1. unmanned plane; 2. a propeller; 3. a sound-absorbing cotton cylinder; 4. a fixing pad; 5. a silica gel pad; 6. a first guard ring; 7. a second guard ring; 8. a support bar; 9. a telescopic rod; 10. a silica gel tray; 11. a rubber strip; 12. a bottom plate; 13. a rubber plate; 14. an auxiliary rod; 15. an L-shaped pipe; 16. a buffer tray; 17. a buffer rod.

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.

Referring to fig. 1-4, the utility model provides a technical scheme of an unmanned aerial vehicle propeller with a noise reduction function:

embodiment one:

as shown in fig. 1-3, the unmanned aerial vehicle propeller with noise reduction function comprises an unmanned aerial vehicle 1 and a plurality of propellers 2, wherein the propellers 2 are respectively arranged around the unmanned aerial vehicle 1, one end parts of the propellers 2 are respectively sleeved with a sound-absorbing cotton cylinder 3, the outer walls of the sound-absorbing cotton cylinders 3 are respectively provided with a plurality of fixing pads 4, one ends of the fixing pads 4 are respectively movably inserted and connected with a silica gel pad 5, one end of one part of the silica gel pads 5 is respectively provided with a first protection ring 6, one end of the other part of the silica gel pads 5 is respectively provided with a second protection ring 7, the bottom ends of the second protection rings 7 are respectively provided with a plurality of support rods 8, the one end of a plurality of bracing pieces 8 all is movably connected with telescopic rod 9 in a penetrating way, the one end of a plurality of telescopic rods 9 all is provided with bottom plate 12, the one end of a plurality of bracing pieces 8 all overlaps and is equipped with silica gel dish 10, the bottom of a plurality of silica gel dishes 10 all is provided with a plurality of rubber strips 11, first protection ring 6 and second protection ring 7 can wrap up the surface of inhaling the cotton section of thick bamboo 3 of sound, the anti deformation performance of screw 2 surface has been increased, and inhale the inside a large amount of holes that are provided with of cotton section of thick bamboo 3 of sound, the noise that screw 2 rotated and produced is absorbed by a plurality of holes, convert acoustic energy into potential energy, thereby can reduce the noise that screw 2 produced.

Embodiment two:

on the basis of the first embodiment, as shown in fig. 1 and 4, a plurality of rubber discs 13 are fixedly installed at the top ends of a plurality of bottom plates 12, the diameters of the plurality of rubber discs 13 are smaller than the diameters of the plurality of bottom plates 12, auxiliary rods 14 are fixedly installed at the top ends of a plurality of first protection rings 6, L-shaped pipes 15 are fixedly installed at one ends of the plurality of auxiliary rods 14, and the unmanned aerial vehicle propeller with the noise reduction function is characterized in that the rubber strips 11, the rubber discs 13, the auxiliary rods 14, the buffer discs 16 and the buffer rods 17 are arranged, the buffer discs 16 are located at the top of the propeller 2, the buffer rods 17 rotate at the bottom of the buffer discs 16, the bottom of the buffer rods 17 are connected with the top of the propeller 2, and the rotation of the propeller 2 drives the buffer rods 17 to rotate.

Working principle: the plurality of propellers 2 can rotate around the unmanned aerial vehicle 1 so as to generate air convection and gradually generate force for moving the unmanned aerial vehicle 1 upwards, thereby driving the unmanned aerial vehicle 1 to fly in the air, the plurality of propellers 2 can generate larger noise when rotating, in order to reduce the noise, the sound-absorbing cotton cylinder 3 covers the outer surface of the propeller 2, the sound-absorbing cotton cylinder 3 is made of sound-absorbing materials, a large number of holes are arranged in the sound-absorbing cotton cylinder 3, the noise generated by the rotation of the propeller 2 is absorbed by the plurality of holes and converted into potential energy, thereby reducing the noise generated by the propeller 2, the plurality of silica gel pads 5 are made of silica gel, so that the stress can be gradually deformed, the first protection ring 6 and the second protection ring 7 can wrap the outer surface of the sound-absorbing cotton cylinder 3, and the deformation resistance of the outer surface of the propeller 2 is increased, the concave degree of the outer surface of the propeller 2 is relieved, when the unmanned aerial vehicle 1 contacts the ground, the bottom surfaces of the plurality of bottom plates 12 are respectively contacted with the ground, the bottom plates 12 move upwards, the surface of the rubber disc 13 can extrude the bottom surfaces of the plurality of rubber strips 11, as the rubber strips 11 are made of rubber, the impact force of the rubber disc 13 on the top of the silica gel disc 10 can be reduced, the damage caused by the large impact force of the bottom plates 12 on the surface of the silica gel disc 10 is avoided, the service lives of the propeller 2 and the unmanned aerial vehicle 1 are prolonged, the buffer disc 16 is positioned on the top of the propeller 2, the buffer rod 17 rotates at the bottom of the buffer disc 16, the bottom of the buffer rod 17 is connected with the top of the propeller 2, the rotation of the propeller 2 drives the buffer rod 17 to rotate at the bottom of the buffer disc 16, the buffer disc 16 can bind the top of the propeller 2, further can strengthen the stability when screw 2 rotates, and buffer disk 16 can cover the top of screw 2 of rotation, when having avoided screw 2 to break the back upward impact, directly strike around, improved the security of screw 2.

In the description of the present utility model, it should be understood that the orientation or positional relationship indicated is based on the orientation or positional relationship shown in the drawings, and is merely for convenience in describing the present utility model and simplifying the description, and does not indicate or imply that the apparatus or element referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present utility model.

In the present utility model, unless explicitly specified and defined otherwise, for example, it may be fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; either directly or indirectly through intermediaries, or in communication with each other or in interaction with each other, unless explicitly defined otherwise, the meaning of the terms described above in this application will be understood by those of ordinary skill in the art in view of the specific circumstances.

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 (7)

1. Unmanned aerial vehicle screw with function of making an uproar falls, including unmanned aerial vehicle (1) and a plurality of screw (2), a plurality of screw (2) set up respectively around unmanned aerial vehicle (1), its characterized in that: a plurality of all the cover of tip of screw (2) is equipped with inhales cotton section of thick bamboo (3), and is a plurality of inhale the outer wall of cotton section of thick bamboo (3) all is provided with a plurality of fixed pads (4), and is a plurality of the one end of fixed pad (4) is all movably connected with silica gel pad (5) in a penetrating way, wherein a portion the one end of silica gel pad (5) all is provided with first protection ring (6), and another portion the one end of silica gel pad (5) all is provided with second protection ring (7), and is a plurality of the bottom of second protection ring (7) all is provided with a plurality of bracing pieces (8), a plurality of the one end of bracing piece (8) all movably connected with telescopic rod (9), a plurality of the one end of telescopic rod (9) all is provided with bottom plate (12).

2. The unmanned aerial vehicle propeller with noise reduction function according to claim 1, wherein: the positions of the bottom plates (12) are arranged at equal intervals, and the bottom surfaces of the bottom plates (12) are made of sponge.

3. The unmanned aerial vehicle propeller with noise reduction function according to claim 1, wherein: a plurality of silica gel discs (10) are sleeved at one end parts of the support rods (8), and a plurality of rubber strips (11) are arranged at the bottom ends of the silica gel discs (10).

4. A unmanned aerial vehicle propeller with noise reduction function according to claim 3, wherein: the diameters of the silica gel discs (10) are larger than the diameters of the support rods (8).

5. The unmanned aerial vehicle propeller with noise reduction function according to claim 1, wherein: a plurality of rubber disks (13) are fixedly arranged at the top ends of the bottom plates (12), and the diameters of the rubber disks (13) are smaller than the diameters of the bottom plates (12).

6. The unmanned aerial vehicle propeller with noise reduction function according to claim 1, wherein: auxiliary rods (14) are fixedly arranged at the top ends of the first protection rings (6), and L-shaped pipes (15) are fixedly arranged at one ends of the auxiliary rods (14).

7. The unmanned aerial vehicle propeller with noise reduction function of claim 6, wherein: one end of each L-shaped pipe (15) is fixedly provided with a buffer disc (16), and the bottom ends of the buffer discs (16) are provided with buffer rods (17).