Background
Along with the development of technology, the work of utilizing unmanned aerial vehicle to survey has very generally been applied to in the middle of the life, at present in some fire-fighting operation, in order to know the particular case of incident place in advance, generally all can use unmanned aerial vehicle to survey earlier, and wherein when facing the condition of a fire, in order to better salvage and protect the life health of fire fighter, it is very necessary to utilize unmanned aerial vehicle to survey earlier.
Present unmanned aerial vehicle is surveying time measuring carrying out the condition of a fire, the smog that the camera arouses on the unmanned aerial vehicle often can appear sheltering from, and smog is attached to on the camera easily, lead to the unable clear shooting of camera, and then influence unmanned aerial vehicle's detection work, although unmanned aerial vehicle's rotor itself can produce powerful downdraft, but because its rotor is installed in the edge more, and general unmanned aerial vehicle camera is installed in the unmanned aerial vehicle below more, because the hindrance of the fuselage, cause the downdraft very easily and to disperse all around, and there is the dead angle under the fuselage, smog still can rise to the unmanned aerial vehicle below, and then hinder the normal control to the scene of a fire, especially be to some detection unmanned aerial vehicle that need go deep into the scene of a fire, the influence is more obvious.
For example, the invention patent application of publication No. CN 110198401B, a camera for a smoke-proof fire-fighting unmanned aerial vehicle, and the invention patent application of publication No. CN 108583882B, an unmanned aerial vehicle for fire rescue, describe a scheme of blowing air and cleaning a glass baffle or a lens, but have the defects that as described above, because a strong downward wind is formed during the operation of a rotor wing of the unmanned aerial vehicle, the downward wind can have a strong influence on the blown wind, resulting in disturbance of the blown wind and further influencing the wind wall forming, the actual smoke-proof effect is difficult to ensure, and the design of the rotating glass baffle and the design of the scraping lens can ensure that the glass baffle is erased by the cleaning cotton when smoke particles are adhered, but all the smoke particles on the glass baffle or the lens can be adhered on the cleaning cotton, and when the cleaning is performed again, the dust adhered on the cleaning cotton is likely to adhere on the glass baffle again, further causing the stains to adhere to the glass baffle all the time, and seriously affecting the normal monitoring of the monitoring camera.
Disclosure of Invention
Aiming at the problems in the prior art, the invention aims to provide a fire-fighting detection unmanned aerial vehicle which can reduce smoke in front of a camera on the unmanned aerial vehicle, remove smoke dust particles attached to the camera, improve shooting definition and ensure real-time monitoring on a fire scene.
In order to solve the above problems, the present invention adopts the following technical solutions.
A fire-fighting detection unmanned aerial vehicle comprises an unmanned aerial vehicle body, wherein a base is fixedly connected to the bottom side of the unmanned aerial vehicle body, the bottom of the base is fixedly connected with a spherical camera capable of adjusting a detection angle, the bottom of the base is fixedly connected with a transparent cover for sheathing the spherical camera inside, the bottom of the base is provided with a cleaning mechanism which can move along the surface of the transparent cover, the base is provided with a driving mechanism matched with the cleaning mechanism, the driving mechanism is used for driving the cleaning mechanism to move along the surface of the transparent cover, the bottom of the base is provided with a rotating part positioned at the periphery of the cleaning mechanism, the bottom of the rotating part is provided with a smoke-expelling mechanism, and the rotating part is used for driving the smoke-expelling mechanism to rotate, wherein, the bottom of base still is provided with the cleaning member who is used for clearing up the cleaning mechanism.
The driving mechanism comprises a first driving motor and a transmission part which are fixedly installed inside the base, and the first driving motor is connected with the cleaning mechanism through the transmission part.
The transmission component comprises a transmission rod, two bevel gears which are meshed with each other and two groups of flat gears which are meshed with each other, the transmission rod is rotatably arranged inside the base through a bearing seat, the two bevel gears are respectively fixed on the transmission rod and an output shaft of the first driving motor, the number of the flat gears in each group is two, one of the flat gears in each group is fixed on the transmission rod, the other flat gear in each group is rotatably arranged below the base through a gear shaft, a support is fixedly connected to the bottom of the flat gear, and the support is connected with the cleaning mechanism.
Clean mechanism include with support fixed connection's arc piece, the inboard of arc piece is through elastic component fixedly connected with arc cleaning plate, the inboard of arc cleaning plate has clean cotton through magic subsides bonding, just clean cotton inboard contacts with the translucent cover.
The cleaning component comprises two arc-shaped pipes symmetrically arranged below the base, the arc-shaped pipes are sleeved on the outer side of the transparent cover, a notch is formed in the outer side of each arc-shaped pipe, and a scraping blade is arranged at the outer edge of each notch.
The rotation angle of the arc-shaped sheet is between 0 degree and 180 degrees, when the rotation angle is between 0 degree and 180 degrees, the arc-shaped sheet is respectively attached below the base, and the inner side of the arc-shaped sheet is attached on the scraping sheet.
The section radius of the arc-shaped pipe is smaller than the distance from the arc-shaped sheet to the transparent cover, and when the cleaning cotton is compressed to the minimum thickness, the thickness of the cleaning cotton is smaller than the distance from the scraping sheet to the arc-shaped sheet.
The rotating part comprises a second driving motor fixedly installed inside the base and a rotating ring rotatably connected to the bottom side of the base, an annular tooth groove is formed in the top of the rotating ring, teeth are evenly distributed in the annular tooth groove, a flat gear is fixedly connected to an output shaft of the second driving motor, and the lower side of the flat gear penetrates through the base and is meshed with the teeth.
The cigarette driving mechanism comprises an arc-shaped support, the end of the arc-shaped support is rotatably connected to the bottom of the rotating ring through a rotating piece, a plurality of arc-shaped frames are arranged on the arc-shaped support, and a cigarette driving fan is arranged inside the arc-shaped frames.
The rotating piece is used for driving the arc-shaped support to rotate, the rotating angle of the arc-shaped support is 0-180 degrees, and when the rotating angle is 0 degree and 180 degrees, the arc-shaped support is parallel to the base respectively.
The invention has the technical effects that: form one with the similar conical air curtain district of translucent cover cladding inside, and then can effectually carry out the separation to smog, reduce smog around the surface at the translucent cover, can clear up translucent cover itself simultaneously, further improve the effect of control scene of a fire.
Detailed Description
In order that the objects and advantages of the invention will be more clearly understood, the following description is given in conjunction with the accompanying examples. It is to be understood that the following text is merely illustrative of one or more specific embodiments of the invention and does not strictly limit the scope of the invention as specifically claimed.
As shown in fig. 1, a fire control surveys unmanned aerial vehicle, including unmanned aerial vehicle body 1, the bottom side fixedly connected with base 2 of unmanned aerial vehicle body 1, the adjustable detection angle's of bottom fixedly connected with spherical camera 3 of base 2, spherical camera 3 can increase monitoring range as far as, compares in conventional camera, and monitoring effect is better.
As shown in fig. 2 and 3, the bottom of the base 2 is fixedly connected with a transparent cover 4 which covers the spherical camera 3 inside, the bottom of the base 2 is provided with a cleaning mechanism 5 which can move along the surface of the transparent cover 4, the base 2 is provided with a driving mechanism 6 matched with the cleaning mechanism, the driving mechanism 6 is used for driving the cleaning mechanism 5 to move along the surface of the transparent cover 4, the bottom of the base 2 is provided with a rotating part 7 which is positioned at the periphery of the cleaning mechanism, the bottom of the rotating part 7 is provided with a smoke-expelling mechanism, and the rotating part 7 is used for driving the smoke-expelling mechanism to rotate, wherein the bottom of the base 2 is further provided with a cleaning part 8 which is used for cleaning the cleaning mechanism 5.
As shown in fig. 4, the driving mechanism 6 includes a first driving motor 601 fixedly installed inside the base 2 and a transmission member 602, and the first driving motor 601 is connected to the cleaning mechanism 5 through the transmission member 602.
Specifically, as shown in fig. 3 and 5, the transmission part 602 includes a transmission rod 6021, two bevel gears 6022 engaged with each other, and two sets of flat gears 6023 engaged with each other, the transmission rod 6021 is rotatably disposed inside the base 2 through a bearing seat, the two bevel gears 6022 are respectively fixed on the transmission rod 6021 and on the output shaft of the first driving motor 601, the number of each set of flat gears 6023 is two, wherein one of the flat gears 6023 is fixed on the transmission rod 6021, the other flat gear 6023 is rotatably disposed below the base 2 through a gear shaft, a bracket 6024 is fixedly connected to the bottom of the flat gear 6023, the bracket 6024 is connected to the cleaning mechanism 5, when the transparent cover 4 needs to be cleaned, the first driving motor 601 is actuated to drive the two bevel gears 6022 to rotate, the transmission rod 6021 is rotated, and during the rotation, the two sets of flat gears 6023 can drive the bracket 6024 to turn over, and the cleaning mechanism 5 is driven by the support 6024 to rotate, so as to clean the surface of the transparent cover 4, thereby reducing the influence of smoke particles on the transparent cover 4.
As shown in fig. 5, the cleaning mechanism 5 includes an arc sheet 501 fixedly connected with a support 6024, an arc cleaning plate 503 is fixedly connected to the inner side of the arc sheet 501 through an elastic member 502, a cleaning cotton 504 is adhered to the inner side of the arc cleaning plate 503 through a hook and loop fastener, the inner side of the cleaning cotton 504 is in contact with the transparent cover 4, the elastic member 502 applies an elastic force to the arc cleaning plate 503 in the cleaning process, so that the cleaning cotton 504 on the arc cleaning plate 503 can be tightly adhered to the transparent cover 4, the overall texture of the cleaning cotton is soft, and the elastic effect of the elastic member 502 is matched, so that the damage to the transparent cover 4 can be reduced while the cleaning effect is ensured.
Specifically, the elastic member 502 may be a spring, which has good elasticity and makes the cleaning cotton 504 contact with the transparent cover 4 more closely.
As shown in fig. 2 and 7, the cleaning component 8 includes two arc pipes 801 symmetrically disposed below the base 2, the arc pipes 801 are sleeved outside the transparent cover 4, a gap 802 is formed on the outer side of the arc pipes 801, a scraping blade 803 is disposed on the outer edge of the gap 802, the scraping blade 803 is used for scraping off granular impurities on the cleaning cotton 504, and the gap 802 is disposed so that the impurities can enter the inner portion of the arc pipes 801 from the gap 802.
Specifically, the rotation angle of the arc-shaped piece 501 is between 0 ° and 180 °, and when the rotation angle is between 0 ° and 180 °, the arc-shaped piece 501 is respectively attached to the lower side of the base 2, and the inner side of the arc-shaped piece 501 is attached to the wiper 803.
More specifically, the radius of the cross section of the arced tube 801 is less than the distance from the arced sheet 501 to the transparent cover 4, and when the cleaning cotton 504 is compressed to a minimum thickness, the thickness of the cleaning cotton is smaller than the distance from the scraping blade 803 to the arc-shaped sheet 501, the deformation amount of the cleaning cotton 504 is set, when the arc-shaped sheet 501 is turned over to be horizontal, the cleaning cotton 504 is extruded and deformed by the scraping blade 803, so that the arc piece 501 can be normally laid flat, and after the flat laying, once the arc piece 501 moves downwards again, the scraping blade 803 can extrude the cleaning cotton 504 and scrape off the particle impurities adhered on the cleaning cotton 504, so that the cleaning cotton 504 is kept in a better state, the cleaning effect of the cleaning cotton 504 on the transparent cover 4 is ensured, the impurities on the cleaning cotton 504 are prevented from being repeatedly adhered on the transparent cover 4, the dust scraped off by the scraper 803 enters the arc pipe 801, and after the task is executed, the arc pipe 801 is detached and cleaned.
The whole of the scraping blade 803 is inclined upwards, so that the resistance on the cleaning cotton 504 from bottom to top is reduced, and when the cleaning cotton 504 moves from top to bottom, the end of the scraping blade 803 just faces the cleaning cotton 504, so that the resistance is increased, and the scraping effect is improved.
As shown in fig. 5 and 6, the rotating member 7 includes a second driving motor 701 fixedly installed inside the base 2 and a rotating ring 702 rotatably connected to the bottom side of the base 2, an annular tooth space 703 is provided at the top of the rotating ring 702, teeth uniformly distributed are provided inside the annular tooth space 703, a flat gear 6023 is also fixedly connected to an output shaft of the second driving motor 701, a lower side of the flat gear 6023 penetrates through the base 2 to be engaged with the teeth, after the unmanned aerial vehicle body 1 enters a fire field, and after an angle of the smoke expelling mechanism is adjusted, the flat gear 6023 is driven by the second driving motor 701, and the rotating ring 702 can be driven by the teeth to rotate by the flat gear 6023, so as to achieve the purpose of driving the smoke expelling mechanism to rotate, thereby enhancing the smoke expelling effect of the smoke expelling mechanism.
As shown in fig. 4, the smoke-expelling mechanism includes an arc-shaped support 9, the end of the arc-shaped support 9 is rotatably connected to the bottom of the rotating ring 702 through a rotating member 10, a plurality of arc-shaped frames 11 are disposed on the arc-shaped support 9, a smoke-expelling fan 12 is disposed inside the arc-shaped frames 11, the rotating member 10 is used for driving the arc-shaped support 9 to rotate, the rotation angle of the arc-shaped support 9 is between 0 ° and 180 °, and when the rotation angle is 0 ° and 180 °, the arc-shaped support 9 is parallel to the base 2, so that the arc-shaped support 9 can rotate, which is convenient for subsequently adjusting the state of the smoke-expelling fan 12, when the unmanned aerial vehicle does not enter the fire, the arc-shaped support 9 is in a flat state, and when the unmanned aerial vehicle enters the fire, the rotating member 10 can adjust the angle of the arc-shaped support 9 and operate the smoke-expelling fan 12 for blowing away smoke rising below the transparent cover 4, and during the cleaning process of the cleaning mechanism 5, the smoke exhausting fan 12 can blow off the smoke or dust cleaned by the cleaning mechanism 5, so that the possibility that impurities are adhered to the cleaning mechanism 5 is reduced, and the cleaning effect of the cleaning mechanism 5 on the transparent cover 4 is improved.
Specifically, as shown in fig. 2 and 8, the rotating member 10 is a device having a rotating function, and may be a brake motor, when the unmanned aerial vehicle monitors a fire scene, the arc-shaped support 9 is driven by the brake motor to rotate, so that the arc-shaped support 9 is inclined, the whole smoke-removing fan 12 is inclined in this state, and the air outlet end blows air towards the transparent cover 4, and meanwhile, the smoke-removing fan 12 is driven by the rotating member 7 to be in a rotating state, so that the smoke-removing fan 12 continuously blows air towards the transparent cover 4 during the rotating process, and a conical air curtain area is formed, which surrounds the transparent cover 4, can effectively separate and blow off smoke in the fire scene, and prevent the smoke from surrounding the surface of the transparent cover 4, thereby providing a good protection effect for the transparent cover 4, and reducing the possibility of smoke accumulation on the surface of the transparent cover 4 to a certain extent, secondly, the camera is installed in unmanned aerial vehicle's below more, is located the dead angle department of fuselage below, and smog rises very easily and influences the camera, and the formation of air curtain relies on oblique decurrent wind to blow mostly, and every ascending wind direction of side is and blows downwards to one side, wholly is in a balanced state, is difficult for appearing certain region and is pressed the wind by the rotor and blow off down, and then can normally form an air curtain that surrounds the camera.
And finally, the action process of each component after the unmanned aerial vehicle enters a fire scene is explained in detail:
when unmanned aerial vehicle 1 enters into the scene of a fire and carries out real time monitoring, firstly, adjust the angle of driving cigarette mechanism through rotating piece 10, make it place to be certain inclination downwards, this angle is preferably fifteen degrees, aim at reduces the field of vision to spherical camera 3 and causes the hindrance, secondly, start the cigarette mechanism, and drive cigarette mechanism through rotating part 7 and rotate, driving cigarette mechanism constantly pivoted in-process, it can blow downwards to drive cigarette mechanism slant, consequently, can form one with the similar conical wind curtain district of translucent cover 4 cladding in inside, and then can effectually carry out the separation to smog, reduce smog around the surface at translucent cover 4, thereby good protecting effect has been played to translucent cover 4, reduce the possibility of smoke and dust granule accumulation on translucent cover 4.
In addition, in case of emergency, once the transparent cover 4 is covered by smoke, the driving mechanism 6 can drive the cleaning mechanism 5 to clean the surface of the transparent cover 4, so that the transparent cover can keep good transparency, the cleaning mechanism 5 can periodically run through a preset time period, or can be selectively run by an operator according to actual conditions, and the cleaning mechanism 5 is in a horizontal state in a normal state, so that the visual field of the spherical camera 3 is prevented from being blocked.
The foregoing is only a preferred embodiment of the present invention; the scope of the invention is not limited thereto. Any person skilled in the art should be able to cover the technical scope of the present invention by equivalent or modified solutions and modifications within the technical scope of the present invention.