An unmanned aerial vehicle for facilitating cleaning of photovoltaic panels

Abstract

The present application relates to the technical field of unmanned aerial vehicle, and particularly discloses a kind of unmanned aerial vehicle for cleaning photovoltaic cell panel, including unmanned aerial vehicle body, camera recording ball head, water supply component, spray recovery component and recovery pipeline;Four heightening stands are evenly installed on the bottom of unmanned aerial vehicle body;Camera recording ball head is installed at the bottom surface of unmanned aerial vehicle body in front position;Water supply component is installed at the top of unmanned aerial vehicle body in rear position;Spray recovery component is arranged below unmanned aerial vehicle body, recovery pipeline and adjustable water supply pipeline are connected on the two sides of spray recovery component respectively, and the recovery pipeline is installed with medicine supplement component.The present application sprays chemical cleaning liquid before washing with clean water, and waits for a period of time for cleaning liquid reaction, then washes pollutants with clean water, which can effectively remove stubborn pollutants on photovoltaic cell panel, and improve the cleaning ability and effect of unmanned aerial vehicle on photovoltaic cell panel.

Description

TECHNICAL FIELD

[0001] The application belongs to the technical field of unmanned aerial vehicles, and particularly relates to an unmanned aerial vehicle facilitating cleaning of a photovoltaic cell panel. BACKGROUND

[0002] An unmanned aerial vehicle is a non-staffed aircraft controlled by radio remote control equipment or self-program control device, and is widely applied in multiple fields.

[0003] At present, unmanned aerial vehicles are widely used for cleaning photovoltaic cell panels. However, most of the current spraying unmanned aerial vehicles only carry clean water to flush the photovoltaic cell panels, and generally have the problems of insufficient cleaning force and poor cleaning effect. SUMMARY

[0004] The application aims to provide an unmanned aerial vehicle facilitating cleaning of a photovoltaic cell panel, so as to solve the problems of insufficient cleaning force and poor cleaning effect of the spraying unmanned aerial vehicle in the prior art.

[0005] To achieve the above-mentioned purpose, the application provides the following technical scheme.

[0006] An unmanned aerial vehicle facilitating cleaning of a photovoltaic cell panel comprises:

[0007] An unmanned aerial vehicle body, the bottom of which is uniformly provided with four height increasing frames for lifting the height of the unmanned aerial vehicle body after landing;

[0008] A camera ball head, which is installed at a front position on the bottom surface of the unmanned aerial vehicle body, and is used for recording flight conditions;

[0009] A water supply assembly, which is installed at a rear position on the top of the unmanned aerial vehicle body;

[0010] A spraying and recycling assembly, which is arranged below the unmanned aerial vehicle body, and is connected with a recycling pipeline and an adjustable water supply pipeline on both sides, the ends of the recycling pipeline and the adjustable water supply pipeline away from the spraying and recycling assembly are connected with the water supply assembly, and a medicine supplement assembly is installed on the recycling pipeline, which is used for supplementing medicine into the water supply assembly to ensure that the cleaning force of the filtered recycled sewage is unchanged.

[0011] Preferably, the spraying and recycling assembly comprises a mounting bracket installed on the bottom surface of the unmanned aerial vehicle body, a spraying panel is rotatably installed on the mounting bracket through two pin shafts, an array of spraying heads are arranged on the surface of the spraying panel, a first electric push rod is hinged to the bottom surface of the unmanned aerial vehicle body, and the output end of the first electric push rod is also hingedly arranged on the back surface of the spraying panel.

[0012] Preferably, the spray recovery assembly further comprises a sewage suction disc arranged next to the spray panel away from the camera head side, a support frame is mounted on the back side of the spray panel, a second electric push rod connected with the sewage suction disc is mounted on the support frame, and a filter box is detachably connected to the side of the sewage suction disc, the filter box is connected with the recovery pipeline, and the filter box can filter and clean the sewage recovered by the sewage suction disc.

[0013] Preferably, the water supply assembly comprises a water storage tank and a detachable tank cover thereon, the tank cover is fixed on the water storage tank by a lock buckle, a partitioning inclined plate is mounted in the water storage tank to divide the space in the water storage tank into two areas, i.e. a cleaning liquid area and a clean water area, and the space of the cleaning liquid area is larger than that of the clean water area.

[0014] Preferably, the water supply assembly further comprises a mixing device, the mixing device comprises a first servo motor and a gear box mounted on the top of the tank cover, the output end of the first servo motor is connected with the input end of the gear box, the output end of the gear box is connected with a mixing main shaft, and at least three groups of stirring rods are mounted on the mixing main shaft along the circumferential direction of the axis.

[0015] Preferably, the water supply assembly further comprises a cleaning liquid outlet pipe and a clean water outlet pipe arranged in sequence at the bottom of the water storage tank, the cleaning liquid outlet pipe is connected with the cleaning liquid area in the water storage tank, and the clean water outlet pipe is connected with the clean water area in the water storage tank; a first electromagnetic valve is mounted at the end of the cleaning liquid outlet pipe to control the on-off of the cleaning liquid outlet pipe, and a second electromagnetic valve is mounted at the end of the clean water outlet pipe to control the on-off of the clean water outlet pipe.

[0016] Preferably, the adjustable water supply pipeline comprises a main water supply pipe inserted through the unmanned aerial vehicle body and fixed in the unmanned aerial vehicle body, the lower end of the main water supply pipe is connected with two second rubber pipes, the two second rubber pipes are connected with the spray panel, the end of the main water supply pipe away from the two second rubber pipes is connected with a stainless steel telescopic pipe, the end of the stainless steel telescopic pipe away from the main water supply pipe is connected with an L-shaped communication pipe, an installation horizontal seat is mounted on the L-shaped communication pipe, a short pipe is inserted in the middle of the installation horizontal seat and arranged in communication with the L-shaped communication pipe; two plugs are symmetrically mounted on the installation horizontal seat about the short pipe, the short pipe can translate with the installation horizontal seat to realize the communication switching of the cleaning liquid outlet pipe and the clean water outlet pipe, so that the type of liquid sprayed by the spray panel can be switched in time.

[0017] Preferably, the adjustable water supply pipeline further comprises a third electric push rod fixedly installed in the unmanned aerial vehicle body, the output end of the third electric push rod is connected with a connecting plate, one side of the connecting plate away from the output end of the third electric push rod is fixedly connected with the L-shaped communication pipe, and the translation of the mounting horizontal seat can be realized through the extension and retraction of the output end of the third electric push rod, so that the communication switching of the short connecting pipe and the cleaning liquid outlet pipe and the clean water outlet pipe is realized; the pressure sensor is further installed in the unmanned aerial vehicle body, when the short connecting pipe is translated to be connected with the clean water outlet pipe, the plug away from the pressure sensor blocks the cleaning liquid outlet pipe, and the plug close to the pressure sensor presses the pressure sensor, and vice versa, when the short connecting pipe is translated to be connected with the cleaning liquid outlet pipe, the plug close to the pressure sensor is separated from the pressure sensor and blocks the clean water outlet pipe.

[0018] Preferably, the recovery pipeline comprises a cross arm arranged across the unmanned aerial vehicle body, a sleeve is arranged through the middle part of the cross arm, a main recovery pipe is connected to the upper end of the sleeve, the upper end of the main recovery pipe extends into the cleaning liquid area in the water storage tank, a first rubber pipe is connected to the lower end of the sleeve, and the lower end of the first rubber pipe is connected with the filter box; a suction pump is installed at the end of the main recovery pipe close to the water storage tank.

[0019] Preferably, the medicine supplement assembly comprises a vertical frame inserted into the horizontal straight end of the main recovery pipe, a top seat is installed at the top of the vertical frame, an insert plate is movably arranged in the vertical frame, a plurality of installation openings are arranged at equal intervals on the insert plate, cleaning agent tablets are arranged in the installation openings, two mouth-shaped frames matched with the cleaning agent tablets are symmetrically arranged on the two sides of the vertical frame, water in the main recovery pipe flows through the two mouth-shaped frames, a first tension spring is arranged between the top seat and the top surface of the insert plate, and the first tension spring provides an upward force for the insert plate; a plurality of lock limiting grooves corresponding to the cleaning agent tablets are arranged on the side surface of the insert plate, and lock limiting pieces matched with the lock limiting grooves are installed on the side surface of the main recovery pipe, so that the cleaning agent tablets are gradually supplemented upward into the main recovery pipe in an automatic alternating manner.

[0020] Compared with the prior art, the present application has the following advantages:

[0021] 1、The water storage tank is divided into two liquid storage areas, a large cleaning liquid area and a small clean water area, and the L-shaped communication pipe and the short connecting pipe in the adjustable water supply pipeline are used to first spray the cleaning liquid from the spraying panel to flush the dust, bird droppings and the like on the surface of the photovoltaic cell panel, and then spray clean water from the spraying panel to flush the surface of the photovoltaic cell panel after the cleaning liquid dilutes and dissolves the stubborn pollutants, so that the stubborn pollutants on the photovoltaic cell panel can be effectively removed, the cleaning capacity and effect of the unmanned aerial vehicle on the photovoltaic cell panel are improved, and the application is practical and reliable.

[0022] 2、The sewage collecting of the sewage collecting disc can be realized when the spraying panel sprays in the application, and then the filtration and recovery can be realized through the filter box, and then the recovered water is sent into the water storage tank through the recovery pipeline, which can solve the problem of water shortage when the unmanned aerial vehicle flies high, improve the continuous operation ability of the unmanned aerial vehicle, and effectively make up for the disadvantage that the unmanned aerial vehicle needs frequent take-off and landing to supplement water.

[0023] 3、The water body after filtration and recovery enters the cleaning liquid area in the water storage tank in the application, which reduces the concentration of the cleaning liquid area, and then affects the dilution and dissolution ability of the subsequent cleaning liquid spraying on stubborn pollutants, so that the introduction of the medicine supplement assembly can put new cleaning agent tablets into the main recovery pipe through the upward translation of the insert piece, and the cleaning agent tablets are flushed into the cleaning liquid area in the water storage tank, and the mixing part can realize the recovery of the concentration of the cleaning liquid, so that the dilution and dissolution ability of the subsequent cleaning liquid spraying on stubborn pollutants is ensured, and the unmanned aerial vehicle always has good cleaning ability. BRIEF DESCRIPTION OF DRAWINGS

[0024] Figure 1 It is a front view of the application;

[0025] Figure 2 It is a side view of the application;

[0026] Figure 3 It is a three-dimensional view of the inclined side of the application;

[0027] Figure 4 It is a connection diagram of the water supply assembly, recovery pipeline, adjustable water supply pipeline and medicine supplement assembly of the application;

[0028] Figure 5 It is a connection diagram of the water supply assembly, recovery pipeline, adjustable water supply pipeline, medicine supplement assembly and pressure sensor of the application;

[0029] Figure 6 It is a structure diagram of the internal structure of the water supply assembly of the application;

[0030] Figure 7 It is a structure diagram of the medicine supplement assembly on the main recovery pipe of the application;

[0031] Figure 8 It is a structure diagram of the medicine supplement assembly of the application;

[0032] Figure 9 It is a disassembly diagram of the medicine supplement assembly of the application;

[0033] Figure 10 It is a further disassembly diagram of the medicine supplement assembly of the application;

[0034] Figure 11 It is a sectional view of the insert piece of the application;

[0035] Figure 12 For Figure 11 Enlarged view of A in the middle.

[0036] In the figure:

[0037] 1. UAV body;

[0038] 2. Height increasing stand;

[0039] 3. Ball head for recording and shooting;

[0040] 4. Water supply assembly;

[0041] 41. Water storage tank; 42. Tank cover; 43. Cleaning liquid outlet pipe; 431. First electromagnetic valve; 44. Clean water outlet pipe; 441. Second electromagnetic valve; 45. Mixing element; 451. First servo motor; 452. Gear box; 453. Mixing main shaft; 454. Stirring rod; 46. Partitioning inclined plate;

[0042] 5. Spraying and recycling assembly;

[0043] 51. Mounting frame; 52. Spraying panel; 521. Spraying head; 53. First electric push rod; 54. Support frame; 55. Second electric push rod; 56. Suction disc; 57. Filtering box;

[0044] 6. Recycling pipeline;

[0045] 61. Main recycling pipe; 62. First rubber pipe; 63. Suction pump; 64. Sleeve; 65. Cross arm;

[0046] 7. Adjustable water supply pipeline;

[0047] 71. Second rubber pipe; 72. Main water supply pipe; 73. Stainless steel telescopic pipe; 74. L-shaped communication pipe; 75. Short connecting pipe; 76. Plug; 77. Mounting cross seat; 78. Linking sheet; 79. Third electric push rod;

[0048] 8. Medicine supplement assembly;

[0049] 81. Vertical frame; 811. Tongue-shaped frame; 82. Top seat; 83. First tension spring; 84. Inserted sheet; 841. Locking limiting groove; 85. Cleaning agent tablet; 86. Locking limiting element; 861. Shell; 862. Second servo motor; 863. Fixed sheet; 864. Second tension spring; 865. Sleeve fixing seat; 866. Locking limiting rod; 867. Sleeve ring; 8671. Convex edge; 868. Convex strip;

[0050] 9. Pressure sensor. DETAILED DESCRIPTION

[0051] With reference to the drawings of the embodiments of the present application, the technical solutions in the embodiments of the present application will be clearly and completely described. Obviously, the described embodiments are only a part of the embodiments of the present application, but not all the embodiments of the present application. Based on the embodiments of the present application, all the other embodiments obtained by those skilled in the art without creative work fall within the scope of the present application.

[0052] Referring to Figures 1-6 As shown in the drawings, the present application provides a UAV for cleaning photovoltaic panels, which comprises a UAV body 1, a camera ball head 3, a water supply assembly 4, a spraying and recycling assembly 5 and a recycling pipeline 6. The UAV body 1 mainly comprises a fuselage, an electric power system, a flight control system, a communication system, a radar, a laser range finder, a power management system and the like, which are all mature technologies, so the specific part positions and implementation principles are not described here. Four heightening frames 2 are uniformly installed on the bottom of the UAV body 1, which are used to raise the height of the UAV body 1 after landing, provide space for the spraying and recycling assembly 5 hung below, and avoid collision and damage of the spraying and recycling assembly 5 after landing. The camera ball head 3 is installed at the front position on the bottom surface of the UAV body 1, which is used to record the flight status. The camera ball head 3 cooperates with the communication system to return the real-time picture of the UAV, which is convenient for the pilot to aim the spraying and recycling assembly 5 at the photovoltaic panel for spraying and cleaning operation. The water supply assembly 4 is installed at the rear position on the top of the UAV body 1. The spraying and recycling assembly 5 is arranged below the UAV body 1. The recycling pipeline 6 and an adjustable water supply pipeline 7 are respectively connected to the two sides of the spraying and recycling assembly 5. The ends of the recycling pipeline 6 and the adjustable water supply pipeline 7 away from the spraying and recycling assembly 5 are connected to the water supply assembly 4. The adjustable water supply pipeline 7 sends the water in the water storage tank 41 to the spraying panel 52 for spraying. A medicine supplement assembly 8 is installed on the recycling pipeline 6, which is used to supplement the medicine into the water supply assembly 4, so as to restore the concentration of the medicine liquid and ensure that the cleaning power of the filtered wastewater is unchanged.

[0053] Specifically, the spraying and recycling assembly 5 comprises a mounting frame 51 mounted on the bottom surface of the unmanned aerial vehicle body 1, a spraying panel 52 is rotatably mounted on the mounting frame 51 through two pin shafts, the surface of the spraying panel 52 is provided with an array of spraying heads 521, the bottom surface of the unmanned aerial vehicle body 1 is hingedly connected with a first electric push rod 53, and the output end of the first electric push rod 53 is also hingedly connected with the back surface of the spraying panel 52. In this way, when the unmanned aerial vehicle body 1 flies to a position close to the photovoltaic panel, the real-time state feedback of the camera ball head 3 is matched, the installation direction of the photovoltaic panel is judged, the output end of the first electric push rod 53 is controlled to be extended or retracted, the inclination angle of the spraying panel 52 can be adjusted, the photovoltaic panel can be directly faced, then the water supply pipeline 7 can supply water, and the photovoltaic panel can be sprayed and washed by the spraying heads 521. The spraying and recycling assembly 5 further comprises a sewage suction disc 56, the sewage suction disc 56 is arranged next to the side of the spraying panel 52 away from the camera ball head 3, a supporting frame 54 is mounted on the back side of the spraying panel 52, a second electric push rod 55 connected with the sewage suction disc 56 is mounted on the supporting frame 54, and a filter box 57 is detachably connected to the side surface of the sewage suction disc 56. The detachable characteristic can remove the filter box 57 after a period of time, clean or replace the filter layer in the filter box 57, and then reinstall it. The filter box 57 is connected with the recycling pipeline 6, and the filter box 57 can filter and clean the sewage recycled by the sewage suction disc 56. From the outside to the inside of the filter box 57, a filter grid, a quartz sand layer, a ceramic filter core layer and a granular activated carbon layer (not shown in the figure) are arranged in sequence. The filter grid is used for rough filtration to block leaves and the like, and then the sewage is filtered by the quartz sand layer, the ceramic filter core layer and the granular activated carbon layer, and then sent to the water supply assembly 4 through the recycling pipeline 6 for recycling. The problem of water shortage when the unmanned aerial vehicle flies to a high altitude for operation can be solved, and the continuous operation capability of the unmanned aerial vehicle can be improved.

[0054] Further, the water supply assembly 4 comprises a water storage tank 41 and a detachable tank cover 42 thereon, the tank cover 42 is fixed on the water storage tank 41 by a lock catch, a partitioning inclined plate 46 is installed in the water storage tank 41 to divide the space in the water storage tank 41 into two areas, i.e. a cleaning liquid area and a clean water area; the space of the cleaning liquid area is larger than that of the clean water area, the cleaning liquid is a mixture of existing mature cleaning chemicals, compared with clean water flushing, it can dilute and dissolve stubborn pollutants; in this way, the cleaning liquid is first sprayed out by the spray panel 52 to flush the dust, bird droppings and the like on the surface of the photovoltaic panel, after the cleaning liquid dilutes and dissolves the stubborn pollutants, clean water is sprayed out by the spray panel 52 to flush the surface of the photovoltaic panel, which can effectively remove the stubborn pollutants on the photovoltaic panel, at the same time, the clean water can avoid the long-term residue of the cleaning liquid on the surface of the photovoltaic panel, avoid the accidental damage of the cleaning liquid adhering to the surface of the photovoltaic panel for a long time, improve the cleaning ability and effect of the unmanned aerial vehicle on the photovoltaic panel; the water supply assembly 4 further comprises a mixing device 45, the mixing device 45 comprises a first servo motor 451 and a gear box 452 installed on the top of the tank cover 42, the gear box 452 comprises two gears of different sizes and corresponding bearing sets for supporting rotation, by suitable gear ratio setting, the rotating speed of the mixing main shaft 453 is improved, the stirring and mixing efficiency of the mixing device 45 is improved, the medicament supplemented by the medicament supplementing assembly 8 can be mixed with the cleaning liquid and the recovered water in the water storage tank 41, the output end of the first servo motor 451 is connected with the input end of the gear box 452, the output end of the gear box 452 is connected with the mixing main shaft 453, and at least three groups of stirring rods 454 are installed on the mixing main shaft 453 along the circumferential direction of the axis.

[0055] Further, in order to realize the on-off control of the cleaning liquid outlet pipe 43 and the clean water outlet pipe 44, the water supply assembly 4 further comprises the cleaning liquid outlet pipe 43 and the clean water outlet pipe 44 arranged in sequence at the bottom of the water storage tank 41, the cleaning liquid outlet pipe 43 is connected with the cleaning liquid area in the water storage tank 41, and the clean water outlet pipe 44 is connected with the clean water area in the water storage tank 41; and a first electromagnetic valve 431 is installed at the end of the cleaning liquid outlet pipe 43 to control the on-off thereof, and a second electromagnetic valve 441 is installed at the end of the clean water outlet pipe 44 to control the on-off thereof.

[0056] In further embodiments, with reference to Figures 2-6The recovery pipeline 6 comprises a cross arm 65 arranged across the unmanned aerial vehicle body 1, a sleeve 64 is arranged through the middle part of the cross arm 65, a main recovery pipe 61 is connected to the upper end of the sleeve 64, the upper end of the main recovery pipe 61 extends into the cleaning liquid area in the water storage tank 41, a first rubber pipe 62 is connected to the lower end of the sleeve 64, the material characteristics of the first rubber pipe 62 enable it to adaptively act in cooperation with the movement of the dirt suction disc 56, thereby improving the flexibility of the movement of the dirt suction disc 56, and the lower end of the first rubber pipe 62 is connected to the filter box 57; a suction pump 63 is arranged at the end of the main recovery pipe 61 close to the water storage tank 41, after the recovered water is filtered by the filter box 57, it is sequentially sent into the water storage tank 41 through the first rubber pipe 62, the sleeve 64 and the main recovery pipe 61, at this time, the recovered water is sent into the water storage tank 41 through the recovery pipeline 6, which can solve the problem of water shortage to a certain extent when the unmanned aerial vehicle flies to a high altitude.

[0057] In further embodiments, with reference to Figure 4 With Figure 5 The adjustable water supply pipeline 7 comprises a main water supply pipe 72 which is arranged through the unmanned aerial vehicle body 1 and fixed in the unmanned aerial vehicle body 1, the lower end of the main water supply pipe 72 is connected with two second rubber pipes 71, the two second rubber pipes 71 are connected with the spray panel 52, the material characteristics of the second rubber pipe 71 enable it to adaptively act in cooperation with the movement of the spray panel 52, thereby improving the flexibility of the movement of the spray panel 52, the end of the main water supply pipe 72 away from the two second rubber pipes 71 is connected with a stainless steel telescopic pipe 73, the end of the stainless steel telescopic pipe 73 away from the main water supply pipe 72 is connected with an L-shaped communication pipe 74, an installation horizontal seat 77 is arranged on the L-shaped communication pipe 74, a short pipe 75 which is in communication with the L-shaped communication pipe 74 is arranged through the middle part of the installation horizontal seat 77; two plugs 76 are symmetrically arranged on the installation horizontal seat 77 about the short pipe 75, the short pipe 75 can translate with the installation horizontal seat 77, thereby realizing the communication switching of the cleaning liquid outlet pipe 43 and the clean water outlet pipe 44, so that the type of liquid sprayed by the spray panel 52 can be switched in time, the specific steps are as follows: the short pipe 75 is translated to the position aligned with the cleaning liquid outlet pipe 43, the spray panel 52 can spray cleaning liquid to wash the dust, bird droppings and the like on the surface of the photovoltaic cell panel, after the cleaning liquid dilutes and dissolves the stubborn pollutants, the short pipe 75 is translated to the position aligned with the clean water outlet pipe 44, and then the spray panel 52 can spray clean water to wash the surface of the photovoltaic cell panel;

[0058] The adjustable water supply pipeline 7 further comprises a third electric push rod 79 fixedly installed in the unmanned aerial vehicle body 1, the output end of the third electric push rod 79 is connected with a connecting sheet 78, the side, away from the output end of the third electric push rod 79, of the connecting sheet 78 is fixedly connected with the L-shaped communication pipe 74, the translation of the mounting horizontal seat 77 can be realized through the extension and retraction of the output end of the third electric push rod 79, so as to realize the communication switching of the short connecting pipe 75 with the cleaning liquid outlet pipe 43 and the clean water outlet pipe 44; the pressure sensor 9 is further installed in the unmanned aerial vehicle body 1, when the short connecting pipe 75 is translated to be in butt joint with the clean water outlet pipe 44, the plug 76, away from the pressure sensor 9, will block the cleaning liquid outlet pipe 43, and the plug 76, close to the pressure sensor 9, will press against the pressure sensor 9, on the contrary, when the short connecting pipe 75 is translated to be in butt joint with the cleaning liquid outlet pipe 43, the plug 76, close to the pressure sensor 9, will be separated from the pressure sensor 9 and block the clean water outlet pipe 44; at this time, the water storage tank 41 is divided into two liquid storage areas, one large and one small, the large one is the cleaning liquid area, and the small one is the clean water area, cooperating with the L-shaped communication pipe 74 and the short connecting pipe 75 in the adjustable water supply pipeline 7, the third electric push rod 79 output end drives the connecting sheet 78 to translate, the short connecting pipe 75 is translated to the position in butt joint with the cleaning liquid outlet pipe 43, at this time, the cleaning liquid can be sprayed out by the spraying panel 52 first, to flush the dust, bird droppings and the like on the surface of the photovoltaic cell panel, after the cleaning liquid dilutes and dissolves the stubborn pollutants, the third electric push rod 79 output end drives the connecting sheet 78 to translate, the short connecting pipe 75 is translated to the position in butt joint with the clean water outlet pipe 44, at this time, the clean water can be sprayed out by the spraying panel 52 to flush the surface of the photovoltaic cell panel; wherein, when the corresponding cleaning liquid outlet pipe 43 and clean water outlet pipe 44 supply water switching, the corresponding first electromagnetic valve 431 and second electromagnetic valve 441 are adjusted to the appropriate on-off position.

[0059] In further embodiments, with reference to Figures 7-12 The medicine supplement assembly 8 comprises a vertical frame 81 inserted into the horizontal straight end of the main recovery pipe 61, a top seat 82 is installed at the top of the vertical frame 81, an insertion sheet 84 is movably inserted into the vertical frame 81, a plurality of installation openings are equally spaced on the insertion sheet 84, and cleaning agent tablets 85 are arranged in the installation openings and can be clamped in place, in this way, when the recovered water passes through the main recovery pipe 61 and passes through the two mouth-shaped frames 811 on the vertical frame 81, the cleaning agent tablets 85 arranged opposite the mouth-shaped frames 811 can be flushed into the cleaning liquid area in the water storage tank 41, two mouth-shaped frames 811 matched with the cleaning agent tablets 85 are symmetrically embedded on both sides of the vertical frame 81 for the water in the main recovery pipe 61 to flow through, and a first tension spring 83 is arranged between the top seat 82 and the top surface of the insertion sheet 84 to provide an upward force to the insertion sheet 84; a plurality of lock limiting grooves 841 corresponding to the cleaning agent tablets 85 are formed on the side surface of the insertion sheet 84, and a lock limiting piece 86 matched with the lock limiting grooves 841 is installed on the side surface of the main recovery pipe 61 to realize the purpose of gradually upward movement of the cleaning agent tablets 85 and automatic rotation of the medicine into the main recovery pipe 61.

[0060] The locking component 86 includes a housing 861 installed on the side of the main recovery pipe 61. A fixing plate 863 and a second servo motor 862 are sequentially fixed to the inner wall of the housing 861. A second tension spring 864 is connected to the side of the fixing plate 863. A retaining seat 865 is connected to the end of the second tension spring 864 facing away from the fixing plate 863. A locking rod 866 is fixedly inserted into the retaining seat 865. The end of the locking rod 866 near the insert 84 is configured as a wedge-shaped head that matches the cross-sectional shape of the locking groove 841. The end of the locking rod 866 facing away from the insert 84 extends outwards after penetrating the side wall of the housing 861. A protruding strip 868 is integrally formed on one side of the fixing plate 863. A collar 867 is fixedly installed at the output end of the second servo motor 862. A protruding edge 8671 is integrally formed on the outside of the collar 867. When the collar 867 rotates one revolution, it can drive the protruding edge 8671 to push against the protruding strip 868 once, causing the wedge-shaped head of the locking rod 866 to be pulled out of the locking groove 841 once. After that, the protruding edge 8671 returns to its original position. The locking rod 866 returns to its original position under the action of the second tension spring 864. The insert plate 84 moves upward one unit under the action of the first tension spring 83. The locking rod 866, which has returned to its original position, is inserted into the next locking groove 841.

[0061] This allows for the replacement of cleaning tablets 85 upwards. Once all cleaning tablets 85 on the insert 84 are used up, after the drone lands, the locking lever 866 can be manually pulled outwards, and the insert 84 can be pulled down to its position. Figure 8 The initial position shown is sufficient. Then, release the locking lever 866. Under the force of the second tension spring 864, the wedge-shaped head of the locking lever 866 inserts into the corresponding locking groove 841 to lock the position of the insert 84. Then, reinstall a new batch of cleaning agent tablets 85, and the drone can take off again. The cleaning agent tablets 85 in the insert 84 repeat the above replacement steps, and new cleaning agent tablets 85 are continuously added to the cleaning liquid area in the water tank 41 to restore the concentration of the liquid in the water tank 41, and then put into the new rinsing and cleaning operation of the photovoltaic panels.

[0062] In the present application, the pressure sensor 9 receives pressure transmission electrical signal as the trigger point, that is, when the short-circuit pipe 75 is translated to be connected with the clean water outlet pipe 44, the plug 76 away from the pressure sensor 9 blocks the cleaning liquid outlet pipe 43, and the plug 76 close to the pressure sensor 9 presses against the pressure sensor 9, at this time, the adjustable water supply pipe 7 supplies clean water to the spray panel 52, the mixing device 45 starts, and the lock limiting device 86 operates simultaneously, that is, every time the clean water is supplied, the mixing device 45 starts the mixing operation once, the lock limiting device 86 operates, and a new cleaning agent tablet 85 is replaced at the same time; this is because the spray of clean water greatly reduces the concentration of the water body recovered by the dirt collection disc 56, so that a new cleaning agent tablet 85 needs to be put in, and at the same time, the mixing device 45 needs to be matched to mix the water body, the tablet and the like in the water storage tank 41, so as to restore the concentration of the liquid medicine, and ensure the dilution and dissolution ability of the subsequent cleaning liquid spray to the stubborn contaminants.

[0063] Although embodiments of the present application have been shown and described, it is to be understood that various modifications, substitutions, replacements and changes can be made to these embodiments without departing from the principles and spirit of the present application, and the scope of the present application is defined by the appended claims and their equivalents.

Claims

1. A drone for facilitating cleaning of a photovoltaic panel, characterized in that, The utility model provides a kind of unmanned aerial vehicle, comprising: Unmanned aerial vehicle body, four height increasing stands are uniformly installed in the bottom of unmanned aerial vehicle body, for lifting the height of unmanned aerial vehicle body after landing; Video recording ball head, installed at the bottom surface of unmanned aerial vehicle body, for video recording flight status; Water supply assembly, installed at the top of unmanned aerial vehicle body; Spray recovery assembly, spray recovery assembly is arranged below unmanned aerial vehicle body, two sides of spray recovery assembly are connected with recovery pipeline and adjustable water supply pipeline respectively, the end of recovery pipeline and adjustable water supply pipeline away from spray recovery assembly is connected with water supply assembly, and the recovery pipeline is installed with medicine supplement assembly, medicine supplement assembly is used to supplement medicine into water supply assembly, to ensure that the cleaning power of filtered sewage is unchanged; The spray recovery assembly includes a mounting bracket installed on the bottom surface of the unmanned aerial vehicle body, a spray panel is rotatably mounted on the mounting bracket by two pin shafts, the surface of the spray panel is provided with an array of spray heads, the bottom surface of the unmanned aerial vehicle body is hingedly connected with a first electric push rod, and the output end of the first electric push rod is also hingedly connected with the back surface of the spray panel; The spray recovery assembly further includes a sewage suction disc, which is arranged next to one side of the spray panel away from the video recording ball head, a support frame is installed on the back side of the spray panel, a second electric push rod connected with the sewage suction disc is installed on the support frame, and a filter box is detachably connected to the side surface of the sewage suction disc, the filter box is connected with the recovery pipeline, and the filter box can filter and clean the sewage recovered by the sewage suction disc; The water supply assembly includes a water storage tank, a partitioning inclined plate is installed in the water storage tank, dividing the space in the water storage tank into two areas, a cleaning liquid area and a clean water area, the space of the cleaning liquid area is larger than that of the clean water area; The recovery pipeline includes a cross arm arranged across the unmanned aerial vehicle body, a sleeve is inserted through the middle part of the cross arm, a main recovery pipe is connected to the upper end of the sleeve, the upper end of the main recovery pipe extends into the cleaning liquid area in the water storage tank, a first rubber pipe is connected to the lower end of the sleeve, and the lower end of the first rubber pipe is connected with the filter box; 2. The drone for cleaning photovoltaic panels of claim 1, wherein: The medicine supplement assembly includes a vertical frame inserted into the horizontal end of the main recovery pipe, a top seat is installed on the top of the vertical frame, a plug is movably inserted into the vertical frame, a plurality of installation openings are evenly spaced on the plug, cleaning agent tablets are arranged in the installation openings, two mouth-shaped frames matching the cleaning agent tablets are symmetrically embedded on both sides of the vertical frame for water flow in the main recovery pipe, and a first tension spring is arranged between the top seat and the top surface of the plug to provide an upward force to the plug; The water supply assembly further includes a detachable tank cover above the water storage tank, which can be fixed on the water storage tank by a lock buckle.

3. The drone for cleaning photovoltaic panels of claim 2, wherein: The water supply assembly further comprises a mixing device, which comprises a first servo motor and a gear box installed on the top of the box cover, the output end of the first servo motor is connected with the input end of the gear box, the output end of the gear box is connected with a mixing main shaft, and at least three groups of stirring rods are installed on the mixing main shaft along the circumferential direction of the axis.

4. The drone for cleaning photovoltaic panels of claim 3, wherein: The water supply assembly further comprises a cleaning liquid outlet pipe and a clean water outlet pipe arranged in sequence at the bottom of the water storage tank, the cleaning liquid outlet pipe is connected with the cleaning liquid area in the water storage tank, and the clean water outlet pipe is connected with the clean water area in the water storage tank; a first electromagnetic valve is installed at the end of the cleaning liquid outlet pipe to control the on-off of the cleaning liquid outlet pipe, and a second electromagnetic valve is installed at the end of the clean water outlet pipe to control the on-off of the clean water outlet pipe.

5. The drone for cleaning photovoltaic panels of claim 4, wherein: The adjustable water supply pipeline comprises a main water supply pipe penetrating through the UAV body and fixed in the UAV body, the lower end of the main water supply pipe is connected with two second rubber pipes, the two second rubber pipes are connected with the spraying panel, the end of the main water supply pipe away from the two second rubber pipes is connected with a stainless steel telescopic pipe, the end of the stainless steel telescopic pipe away from the main water supply pipe is connected with an L-shaped communication pipe, an installation horizontal seat is installed on the L-shaped communication pipe, and a short pipe is inserted in the middle of the installation horizontal seat and arranged in communication with the L-shaped communication pipe; two plugs are symmetrically installed on the installation horizontal seat with respect to the short pipe, the short pipe can translate with the installation horizontal seat to realize the communication switching of the cleaning liquid outlet pipe and the clean water outlet pipe, so that the type of liquid sprayed by the spraying panel can be switched in time.

6. A drone for cleaning photovoltaic panels according to claim 5, characterized in that: The adjustable water supply pipeline further comprises a third electric push rod fixedly installed in the UAV body, the output end of the third electric push rod is connected with a connecting plate, one side of the connecting plate away from the output end of the third electric push rod is fixedly connected with the L-shaped communication pipe, and the third electric push rod can realize the translation of the installation horizontal seat through the extension and retraction of the output end, so as to realize the communication switching of the short pipe and the cleaning liquid outlet pipe and the clean water outlet pipe; a pressure sensor is further installed in the UAV body, when the short pipe is translated to be in butt joint with the clean water outlet pipe, the plug away from the pressure sensor will block the cleaning liquid outlet pipe, and the plug close to the pressure sensor will press against the pressure sensor, and vice versa, when the short pipe is translated to be in butt joint with the cleaning liquid outlet pipe, the plug close to the pressure sensor will be separated from the pressure sensor and block the clean water outlet pipe.

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