CN215043631U - Shock attenuation noise reduction unmanned aerial vehicle - Google Patents
Shock attenuation noise reduction unmanned aerial vehicle Download PDFInfo
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- CN215043631U CN215043631U CN202120871753.5U CN202120871753U CN215043631U CN 215043631 U CN215043631 U CN 215043631U CN 202120871753 U CN202120871753 U CN 202120871753U CN 215043631 U CN215043631 U CN 215043631U
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Abstract
The utility model provides a shock attenuation noise reduction unmanned aerial vehicle, include: the unmanned aerial vehicle comprises an unmanned aerial vehicle body, a supporting plate, a first spring and a damping component; the upper end of the supporting plate is hinged to the bottom of the unmanned aerial vehicle body, and the lower end of the supporting plate is fixed with the bearing plate; the supporting plate is provided with a chute; one end of the first spring is fixed on one support plate, and the other end of the first spring is fixed on the other support plate; the first spring and the sliding groove are positioned on two sides of the supporting plate; the damping assembly is arranged corresponding to the supporting plate and comprises a fixing rod and a telescopic rod, the upper end of the fixing rod is hinged to the bottom of the unmanned aerial vehicle body, and the lower end of the telescopic rod is connected with the sliding chute in a sliding mode; a buffer groove is formed in the fixed rod and extends from the bottom surface of the fixed rod to the inside of the fixed rod; a second spring is arranged in the buffer groove, the upper end of the second spring is fixed at the top of the buffer groove, and the lower end of the second spring is fixed at the top of the telescopic rod; the fixed rod is sleeved on the telescopic rod through the buffer slot. The utility model discloses a set up first spring and damper assembly, shock attenuation effect when can improving the landing.
Description
Technical Field
The utility model belongs to the technical field of unmanned aerial vehicle, especially, relate to a shock attenuation noise reduction unmanned aerial vehicle.
Background
An unmanned aircraft, abbreviated as "drone" and abbreviated in the english as "UAV", is an unmanned aircraft that is operated by means of a radio remote control device and a self-contained program control device, or by an onboard computer operating autonomously, completely or intermittently, and is often more suitable for tasks that are too dangerous than a manned aircraft. Unmanned aerial vehicles can be classified into military and civil applications according to the application field. For military use, unmanned aerial vehicles divide into reconnaissance aircraft and target drone. In the civil aspect, the unmanned aerial vehicle + the industry application is really just needed by the unmanned aerial vehicle; at present, the unmanned aerial vehicle is applied to the fields of aerial photography, agriculture, plant protection, miniature self-timer, express transportation, disaster relief, wild animal observation, infectious disease monitoring, surveying and mapping, news reporting, power inspection, disaster relief, film and television shooting, the use of the unmanned aerial vehicle is greatly expanded, and developed countries actively expand industrial application and develop unmanned aerial vehicle technology.
The in-process that unmanned aerial vehicle descends, because the weight of self has great impact force occasionally at the landing. However, in the prior art, because unmanned aerial vehicle's shock attenuation effect is poor, it is great to cause the whole vibrations power that receives of unmanned aerial vehicle, causes unmanned aerial vehicle to take place the slope phenomenon, is unfavorable for landing of unmanned aerial vehicle safety.
Disclosure of Invention
An object of the utility model is to provide a shock attenuation noise reduction unmanned aerial vehicle to solve the poor problem of shock attenuation effect among the prior art. In order to achieve the above purpose, the utility model adopts the following technical scheme:
a shock attenuation noise reduction unmanned aerial vehicle, comprising:
an unmanned aerial vehicle body;
the upper ends of the supporting plates are hinged to the bottom of the unmanned aerial vehicle body, and the lower ends of the supporting plates are fixed with a bearing plate; a sliding groove extending along the length direction of the supporting plate is formed in the side face, close to the unmanned aerial vehicle body, of the supporting plate;
one end of the first spring is fixed on one of the support plates, and the other end of the first spring is fixed on the other support plate; the first spring and the sliding groove are positioned on two sides of the supporting plate;
the damping assembly is arranged corresponding to the supporting plate and comprises a fixed rod and a telescopic rod, the upper end of the fixed rod is hinged to the bottom of the unmanned aerial vehicle body, and the lower end of the telescopic rod is connected with the sliding chute in a sliding mode; a buffer groove is formed in the fixed rod and extends from the bottom surface of the fixed rod to the inside of the fixed rod; a second spring is arranged in the buffer groove, the upper end of the second spring is fixed at the top of the buffer groove, and the lower end of the second spring is fixed at the top of the telescopic rod; the fixed rod is sleeved on the telescopic rod through the buffer groove.
Preferably, a sliding block is fixed at the lower end of the telescopic rod, and the sliding block is matched with the sliding groove to form the sliding connection.
Preferably, a stud is fixed at the bottom of the unmanned aerial vehicle body; a limiting block is fixed on one side face, far away from the unmanned aerial vehicle body, of the supporting plate; a connecting ring is sleeved on the stud, and a limiting rod is welded on the connecting ring; the limiting rod and the first spring are positioned on the same side of the supporting plate; the gag lever post is located the stopper is to the inboard pivoted rotation region of unmanned aerial vehicle body in.
Preferably, further include a noise reduction cover, noise reduction cover parcel in the unmanned aerial vehicle body.
Preferably, the noise reduction cover further comprises a noise reduction cover, wherein the noise reduction cover comprises a sound absorption layer and a sound insulation plate which are sequentially arranged from outside to inside; a plurality of sound absorbing holes are formed in the surface of the sound absorbing layer.
Preferably, a vacuum cavity is formed in the sound insulation board, and fiber fillers are filled in the vacuum cavity.
Preferably, an anti-vibration layer is arranged between the sound absorption layer and the sound insulation board and on the lower surface of the sound insulation board.
Compared with the prior art, the utility model has the advantages that:
(1) when the unmanned aerial vehicle lands, the unmanned aerial vehicle body is pressed downwards so that the supporting plate is opened towards the outside of the unmanned aerial vehicle body,
the first spring stretches to achieve the damping effect; under the cooperation through slider and spout for the telescopic link slides in the backup pad surface, makes the telescopic link extrude the second spring, and the second spring can absorb partial vibration. Therefore, the overall damping effect is improved.
(2) When the unmanned aerial vehicle flies or lands, the sound absorption holes absorb noise, then the noise is absorbed again through the sound absorption layer, and then sound insulation is performed through the sound insulation board; the anti-vibration layer can avoid the acoustic celotex board to take place great vibration to holistic syllable-dividing effect has been improved, the acoustic celotex board is inside to be seted up the vacuum cavity simultaneously and to have filled the fibrous filler, thereby reaches syllable-dividing effect once more. Therefore, the overall noise reduction effect is improved.
Drawings
Fig. 1 is a main view of the shock-absorbing noise-reducing unmanned aerial vehicle according to an embodiment of the present invention;
FIG. 2 is a block diagram of the shock assembly of FIG. 1;
fig. 3 is a cross-sectional view of the noise reduction cap of fig. 1.
Fig. 4 is a bottom view of the left support plate of fig. 1.
The unmanned aerial vehicle comprises an unmanned aerial vehicle body 1, a vehicle arm 2, a blade 3, a vibration prevention layer 4, a noise reduction cover 5, a support plate 6, a bearing plate 7, a first spring 8, a limiting rod 9, a fixing rod 10, a telescopic rod 11, a sliding block 12, a sliding groove 13, a buffer groove 14, a second spring 15, a sound absorption layer 16, a vacuum cavity 17, a sound absorption hole 18 and a sound insulation plate 19.
Detailed Description
The present invention will now be described in more detail with reference to the drawings, in which preferred embodiments of the invention are shown, it being understood that one skilled in the art could modify the invention herein described while still achieving the beneficial effects of the invention. Accordingly, the following description should be construed as broadly as possible to those skilled in the art and not as limiting the invention.
As shown in fig. 1-3, a shock attenuation noise reduction unmanned aerial vehicle includes: unmanned aerial vehicle body 1, a pair of backup pad 6, first spring 8 and damper.
Noise reduction cover 5 wraps up in the outside of unmanned aerial vehicle body 1 for absorb and isolated noise. Known from the prior art are: 1 four sides top fixed mounting of unmanned aerial vehicle body has horn 2, and 2 tops of horn are provided with paddle 3, and 1 embedded setting in one side of unmanned aerial vehicle body is convenient for shoot with the camera.
The upper end of backup pad 6 articulates in the bottom of unmanned aerial vehicle body 1, and a bearing plate 7 is fixed to the lower extreme, and 7 bottom fixed mountings of bearing plate have the buffering slipmat, offer one on backup pad 6 is close to the side of unmanned aerial vehicle body 1 along the spout 13 of the length direction extension of backup pad 6.
One end of the first spring 8 is fixed to one of the support plates 6 (left support plate 6), and the other end is fixed to the other support plate 6 (right support plate 6); the first spring 8 and the slide groove 13 are located on both sides of the support plate 6.
And the damping components are arranged corresponding to the supporting plates 6, namely one supporting plate 6 is connected with one damping component.
The shock-absorbing assembly includes a fixing rod 10, a telescopic rod 11 and a second spring 15. The upper end of the fixed rod 10 is hinged to the bottom of the unmanned aerial vehicle body 1, the lower end of the telescopic rod 11 is connected with the sliding groove 13 in a sliding mode, the lower end of the telescopic rod 11 is fixed with a sliding block 12, and the sliding block 12 is matched with the sliding groove 13 to form sliding connection; a buffer groove 14 extending along the length direction of the fixed rod 10 is formed in the fixed rod 10, and the buffer groove 14 extends from the bottom surface of the fixed rod 10 to the inside of the fixed rod 10; a second spring 15 is arranged in the buffer groove 14, the upper end of the second spring 15 is fixed at the top of the buffer groove 14, and the lower end of the second spring 15 is fixed at the top of the telescopic rod 11; the fixing rod 10 is sleeved on the telescopic rod 11 through a buffer slot 14. As shown in fig. 2, a partial sectional view of the buffer tank 14 is shown.
As in fig. 4, for the face up view azimuth of left side support plate 6, the side of backup pad 6 is articulated with unmanned aerial vehicle body 1, and the side perpendicular to installation gag lever post 9 of articulated unmanned aerial vehicle body 1's side. A stud is fixed at the bottom of the unmanned aerial vehicle body 1; a limiting block is fixed on one side surface of the supporting plate 6, which is far away from the unmanned aerial vehicle body 1; a connecting ring is sleeved on the stud, and a limiting rod 9 is welded on the connecting ring; the limiting rod 9 and the first spring 8 are positioned on the same side of the supporting plate 6; the gag lever post 9 is located the stopper and rotates the region to the inboard pivoted of unmanned aerial vehicle body 1. The effect of gag lever post 9 is that restriction backup pad 6 is rotatory to the inboard of unmanned aerial vehicle body 1. When the left support plate 6 rotates towards the right support plate 6, the left limiting rod 9 blocks the screw on the left support plate 6 to limit the rotation of the support plate 6. That is, in this embodiment, the limiting block includes a stud fixed on the supporting plate 6 by a nut. In this embodiment, the inboard direction of unmanned aerial vehicle body 1, using left side support plate 6 as an example, means that left side support plate 6 is far away from the direction of left side paddle 3.
In the present embodiment, the noise reduction cover 5 includes a sound absorbing layer 16 and a sound insulating board 19 which are arranged in this order from the outside to the inside; the surface of the sound absorption layer 16 is provided with a plurality of sound absorption holes 18; a vacuum cavity 17 is formed in the sound insulation board 19, and fiber fillers are filled in the vacuum cavity 17; the vibration preventing layer 4 is provided between the sound absorbing layer 16 and the sound insulating board 19 and on the lower surface of the sound insulating board 19. Wherein, the material of anti-vibration layer 4 is the damping material, through setting up anti-vibration layer 4, avoids acoustic celotex board 19 to vibrate to reach syllable-dividing effect.
When unmanned aerial vehicle descends, bearing plate 7 at first contacts ground, and the weight pressure of unmanned aerial vehicle organism 1 is in backup pad 6, and a pair of backup pad 6 is all opened to unmanned aerial vehicle's outside direction under the effect of the impulsive force to stretch first spring 8. That is, the support plate 6 transmits the weight to the first spring 8, and the shock transmitted from the load bearing plate 7 contacting the ground is transmitted to the first spring 8, and the first spring 8 can absorb a part of the shock. In the process of opening the supporting plate 6 to the outside direction of the unmanned aerial vehicle body 1, the first spring 8 is in a stretched state.
When the backup pad 6 is opened to the outside direction of unmanned aerial vehicle body 1, under the cooperation of slider 12 and spout 13, telescopic link 11 slides on the surface of backup pad 6. Along with opening of backup pad 6, telescopic link 11 contracts back to in the inside dashpot 14 of dead lever 10 for telescopic link 11 extrudees second spring 15, and the vibrations that come from bearing plate 7 contact ground transmission promptly transmit to second spring 15, and second spring 15 can absorb partial vibration sense, thereby has improved holistic buffering effect, through the effectual vibrations that have reduced when unmanned aerial vehicle body 11 descends of buffering, plays corresponding cushioning effect. Simultaneously, also effectual vibration when having reduced unmanned aerial vehicle body 11 uses through the buffering plays corresponding noise reduction effect, has reduced the risk of being discovered by the radar. Wherein the second spring 15 is always in a compressed state.
When unmanned aerial vehicle flies or descends, the production noise that unmanned aerial vehicle body 11 self produced at first absorbs the noise through inhaling sound hole 18, then absorbs once more through inhaling sound layer 16 to reach the effect of preliminary noise reduction, give sound insulation through acoustic celotex board 19 afterwards. Because the surface of the sound insulation board 19 is provided with the vibration-proof layer 4, the sound insulation board 19 can be prevented from generating large vibration, and the whole sound insulation effect is improved. The sound insulation board 19 is internally provided with the vacuum cavity 17, and the vacuum cavity 17 is filled with fiber filler, so that the sound insulation can be realized again. From this, through multiple noise absorption and isolated noise, the effectual noise reduction effect that has improved, unmanned aerial vehicle is difficult to be found by the radar, has improved the security of flight.
The above description is only for the preferred embodiment of the present invention, and does not limit the present invention. Any technical personnel who belongs to the technical field, in the scope that does not deviate from the technical scheme of the utility model, to the technical scheme and the technical content that the utility model discloses expose do the change such as the equivalent replacement of any form or modification, all belong to the content that does not break away from the technical scheme of the utility model, still belong to within the scope of protection of the utility model.
Claims (7)
1. The utility model provides a shock attenuation noise reduction unmanned aerial vehicle, its characterized in that includes:
an unmanned aerial vehicle body;
the upper ends of the supporting plates are hinged to the bottom of the unmanned aerial vehicle body, and the lower ends of the supporting plates are fixed with a bearing plate; a sliding groove extending along the length direction of the supporting plate is formed in the side face, close to the unmanned aerial vehicle body, of the supporting plate;
one end of the first spring is fixed on one of the support plates, and the other end of the first spring is fixed on the other support plate; the first spring and the sliding groove are positioned on two sides of the supporting plate;
the damping assembly is arranged corresponding to the supporting plate and comprises a fixed rod and a telescopic rod, the upper end of the fixed rod is hinged to the bottom of the unmanned aerial vehicle body, and the lower end of the telescopic rod is connected with the sliding chute in a sliding mode; a buffer groove is formed in the fixed rod and extends from the bottom surface of the fixed rod to the inside of the fixed rod; a second spring is arranged in the buffer groove, the upper end of the second spring is fixed at the top of the buffer groove, and the lower end of the second spring is fixed at the top of the telescopic rod; the fixed rod is sleeved on the telescopic rod through the buffer groove.
2. The unmanned aerial vehicle of claim 1, wherein a sliding block is fixed to the lower end of the telescopic rod, and the sliding block is matched with the sliding groove to form the sliding connection.
3. The shock-absorbing noise-reducing unmanned aerial vehicle of claim 1, wherein a stud is fixed to the bottom of the unmanned aerial vehicle body; a limiting block is fixed on one side face, far away from the unmanned aerial vehicle body, of the supporting plate; a connecting ring is sleeved on the stud, and a limiting rod is welded on the connecting ring; the limiting rod and the first spring are positioned on the same side of the supporting plate; the gag lever post is located the stopper is to the inboard pivoted rotation region of unmanned aerial vehicle body in.
4. The shock-absorbing and noise-reducing unmanned aerial vehicle as claimed in claim 1, further comprising a noise-reducing hood, wherein the noise-reducing hood is wrapped around the unmanned aerial vehicle body.
5. The shock-absorbing noise-reducing unmanned aerial vehicle as claimed in claim 4, further comprising a noise-reducing cover, wherein the noise-reducing cover comprises a sound-absorbing layer and a sound-insulating plate which are arranged in sequence from outside to inside; a plurality of sound absorbing holes are formed in the surface of the sound absorbing layer.
6. The unmanned aerial vehicle of claim 5, wherein a vacuum cavity is opened inside the sound insulation board, and the vacuum cavity is filled with fiber filler.
7. The shock-absorbing and noise-reducing unmanned aerial vehicle as claimed in claim 5, wherein an anti-vibration layer is arranged between the sound-absorbing layer and the sound-insulating board and on the lower surface of the sound-insulating board.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120871753.5U CN215043631U (en) | 2021-04-26 | 2021-04-26 | Shock attenuation noise reduction unmanned aerial vehicle |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202120871753.5U CN215043631U (en) | 2021-04-26 | 2021-04-26 | Shock attenuation noise reduction unmanned aerial vehicle |
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| CN215043631U true CN215043631U (en) | 2021-12-07 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114212256A (en) * | 2022-01-28 | 2022-03-22 | 南方电网电力科技股份有限公司 | Unmanned aerial vehicle |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114212256A (en) * | 2022-01-28 | 2022-03-22 | 南方电网电力科技股份有限公司 | Unmanned aerial vehicle |
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