Photovoltaic panel cleaning trolley

Abstract

The utility model provides a photovoltaic panel cleaning trolley, and relates to the field of photovoltaic panel cleaning. The cleaning vehicle comprises a vehicle body, a water spraying device, a sweeping device and a water stain cleaning device, the sweeping device comprises a first mounting frame, a rolling brush and a sweeping motor, and the first mounting frame is mounted in front of the vehicle body; the rolling brush is rotatably mounted on the first mounting frame; the cleaning motor is fixedly mounted on the first mounting frame; the water spraying device comprises a water tank, a self-sucking pump and a nozzle; the water tank and the self-sucking pump are arranged on the vehicle body; the nozzle is arranged on the first mounting frame; the clean water stain device comprises a second mounting frame, a sponge and an extrusion motor, and the second mounting frame is mounted behind the vehicle body and comprises a rear baffle; a pressing plate capable of reciprocating back and forth is mounted on the second mounting frame; the sponge is arranged between the rear baffle and the pressing plate; the extrusion motor is fixedly connected with the second mounting frame, and an output shaft is in transmission connection with the pressing plate. The cleaning vehicle can greatly improve the cleaning effect on the photovoltaic panel, and is low in requirement on water resources, so that the cleaning vehicle is wide in application range and very suitable for northwest regions.

Description

Technical Field

[0001] The utility model relates to the technical field of photovoltaic panel cleaning, in particular to a photovoltaic panel cleaning vehicle. Background Art

[0002] The cleanliness of the photovoltaic panel surface has a great impact on the photovoltaic power generation efficiency. If the photovoltaic panel surface is not clean, it will easily produce a spot effect, causing irreversible damage to the photovoltaic panel and seriously affecting the photovoltaic power generation efficiency.

[0003] my country's northwest region has abundant sunshine and is a natural place to build photovoltaic power stations. However, the perennial sandstorms in the northwest region make it easy for sand, bird droppings and other debris to accumulate on the surface of photovoltaic panels, which poses a great challenge to the cleaning of photovoltaic panels.

[0004] Traditional photovoltaic panel cleaning mainly uses manual cleaning, which is not only time-consuming and labor-intensive, but may also damage the photovoltaic panels due to excessive force, causing the operation and maintenance costs of the power station to rise sharply. Although the full water washing cleaning method in the south has a good cleaning effect, the water resources in the northwest are not sufficient, so it is not realistic to use the full water washing cleaning method in the northwest; as for the cleaning method without adding water on the market, although it has low requirements for water resources, it has limited cleaning effect on photovoltaic panels and is also not applicable in the northwest. Utility Model Content

[0005] The utility model aims to provide a photovoltaic panel cleaning vehicle to solve the technical problem that the photovoltaic panel cleaning method in the prior art is not suitable for the northwest region and has a small application range.

[0006] The photovoltaic panel cleaning vehicle provided by the utility model comprises a vehicle body and a water spraying device, a cleaning device and a water stain cleaning device arranged on the vehicle body.

[0007] The cleaning device comprises a first mounting frame, a roller brush and a cleaning motor, wherein the first mounting frame is mounted on the vehicle body and located in front of the vehicle body; the roller brush is rotatably mounted on the first mounting frame; the cleaning motor is fixedly mounted on the first mounting frame, and is used to drive the roller brush to rotate to clean the photovoltaic panel;

[0008] The water spray device comprises a water tank, a self-priming pump and a nozzle connected in sequence by a water pipe, the water tank and the self-priming pump are arranged on the vehicle body; the nozzle is arranged on the first mounting frame, and is used to spray cleaning liquid onto the photovoltaic panel;

[0009] The water stain cleaning device includes a second mounting frame, a sponge and a squeezing motor, wherein the second mounting frame is mounted on the vehicle body and located at the rear of the vehicle body, and the second mounting frame includes a rear baffle; the second mounting frame is equipped with a pressure plate capable of reciprocating in the front-rear direction; the sponge is arranged between the rear baffle and the pressure plate; the squeezing motor is fixedly connected to the second mounting frame, and the output shaft of the squeezing motor is transmission-connected to the pressure plate for pushing and pulling the pressure plate to squeeze the sponge.

[0010] Furthermore, the left end and the right end of the first mounting frame are rotatably mounted on the left side and the right side of the vehicle body, respectively, and a torsion spring is arranged between the left side and the right side of the vehicle body and the corresponding end of the first mounting frame; the axis of the torsion spring extends in the left-right direction, one end of the torsion spring is fixed to the vehicle body, and the other end is fixed to the end of the first mounting frame, so as to press down the first mounting frame.

[0011] Furthermore, the front ends of the left and right sides of the vehicle body are fixedly provided with mounting shafts, and the mounting shafts extend in the left-right direction; the left and right ends of the first mounting frame are provided with first connecting arms, and the first connecting arms are rotatably installed on the corresponding mounting shafts; the torsion spring is sleeved on the mounting shaft, and one end is fixed to the mounting shaft, and the other end is fixed to the corresponding first connecting arm.

[0012] Furthermore, two tension springs are arranged between the first mounting frame and the vehicle body; at least two mounting columns are fixedly arranged at the front ends of the left and right sides of the vehicle body, and the mounting columns are located above the torsion springs on the same side; one end of the two tension springs is fixedly connected to the first mounting frame, and the other end is fixedly connected to one of the corresponding mounting columns.

[0013] Furthermore, the roller brush includes a roller shaft and a plurality of clusters of spiral brush strips arranged on the roller shaft, and along the circumference of the roller shaft, the angles between two adjacent clusters of the brush strips are equal.

[0014] Furthermore, a driving pulley is coaxially fixed to the output shaft of the cleaning motor, a driven pulley is coaxially fixed to the roller shaft of the roller brush, and a transmission belt is wound around the driving pulley and the driven pulley.

[0015] Furthermore, the first mounting frame includes a first top plate and two first side plates respectively fixedly connected to the left and right ends of the first top plate; the nozzle is arranged on the first top plate; and the two ends of the roller shaft of the roller brush are respectively rotatably arranged on the corresponding first side plates.

[0016] Furthermore, the nozzle is arranged above the first top plate of the first mounting frame through an adjustable bracket, and the adjustable bracket includes a first base fixedly arranged on the first top plate and a second base fixedly connected to the nozzle, and also includes an adjusting rod, and both ends of the adjusting rod are rotatably connected to the first base and the second base respectively, and the rotation axis is set at an angle.

[0017] Furthermore, a lead screw and a screw sleeve threadedly sleeved on the lead screw are provided between the extrusion motor and the pressure plate, the output shaft of the extrusion motor is drivingly connected to the lead screw, and the screw sleeve is fixedly connected to the pressure plate.

[0018] Furthermore, a driving gear is coaxially fixed to the output shaft of the extrusion motor, a driven gear is coaxially fixed to the lead screw, a reduction gear is arranged between the driving gear and the driven gear, and the reduction gear is meshedly connected with both the driving gear and the driven gear.

[0019] Furthermore, the second mounting frame further comprises a second top plate and two second side plates respectively fixedly connected to the left and right ends of the second top plate, and the left and right ends of the pressing plate are respectively movably connected to one of the second side plates;

[0020] The upper end of the rear baffle is fixedly connected to the second top plate, and the left end and the right end are respectively fixedly connected to the corresponding second side plates;

[0021] The second mounting frame further comprises a third baffle plate disposed opposite to the rear baffle plate, and the pressure plate is disposed between the rear baffle plate and the third baffle plate;

[0022] Second connecting arms are fixedly provided at both left and right ends of the third baffle, one end of the second connecting arm is fixedly connected to the third baffle, and the other end is connected to the vehicle body.

[0023] The photovoltaic panel cleaning vehicle provided by the utility model can produce the following beneficial effects:

[0024] The photovoltaic panel cleaning vehicle provided by the utility model adopts a modular design, including a vehicle body and a water spraying device and a cleaning device located in front of the vehicle body, and also includes a water stain cleaning device located at the rear of the vehicle body. Among them, the vehicle body is responsible for walking; the water spraying device is used to spray cleaning liquid on the photovoltaic panel to moisten the soil and sand for easy cleaning, thereby improving the cleaning effect, and at the same time, fine dust is granulated under the action of water mist, effectively avoiding dust from being raised and causing secondary pollution, and further improving the cleaning effect of the photovoltaic panel; the cleaning device uses a cleaning motor to drive a roller brush to clean the mud and sand on the surface of the photovoltaic panel; the water stain cleaning device uses a sponge to effectively absorb the water stains remaining after cleaning, further improving the cleanliness of the photovoltaic panel, and also avoiding ice on the surface of the photovoltaic panel in a low temperature environment, and also squeezes the sponge through the squeezing motor to discharge the water in the sponge in time.

[0025] Therefore, the photovoltaic panel cleaning vehicle provided by the utility model can greatly improve the cleaning effect of the photovoltaic panels through the water spraying device and the water stain cleaning device, and the photovoltaic panel cleaning vehicle provided by the utility model has very low requirements for water resources. That is, the photovoltaic panel cleaning vehicle provided by the utility model has good cleaning effect and low requirements for water resources, so it has a wide range of applications and is very suitable for the northwest region.

[0026] In actual use, different modules can be selected according to different application scenarios. Under normal working conditions, a cleaning device and a water spraying device can be installed at the front end, and the self-priming pump and roller brush can be turned on to spray water and roll sweep; a water stain cleaning module can be installed at the rear end to clean the photovoltaic panels. After the rain, there is no need to spray water and clean. The water stain cleaning device at the rear end can be used alone to clean the water stains remaining on the photovoltaic panels, so as to avoid dust accumulation and sediment agglomeration caused by the scouring after the rain. That is, the photovoltaic panel cleaning vehicle provided by the utility model is also very flexible to use. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings in the following description are only embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on the provided drawings without paying creative work.

[0028] Figure 1 A schematic diagram of the structure of a photovoltaic panel cleaning vehicle provided by an embodiment of the utility model;

[0029] Figure 2 for Figure 1 The enlarged schematic diagram of point A in the middle;

[0030] Figure 3 One of the structural schematic diagrams of the water spraying device and the cleaning device of the photovoltaic panel cleaning vehicle provided by the embodiment of the utility model;

[0031] Figure 4 A second structural schematic diagram of a water spraying device and a cleaning device of a photovoltaic panel cleaning vehicle provided by an embodiment of the utility model;

[0032] Figure 5 A schematic diagram of the bottom-up structure of a photovoltaic panel cleaning vehicle provided by an embodiment of the utility model;

[0033] Figure 6 A schematic diagram of the structure of a nozzle and an adjustable bracket of a photovoltaic panel cleaning vehicle provided by an embodiment of the utility model;

[0034] Figure 7 A schematic structural diagram of a water stain removal device for a photovoltaic panel cleaning vehicle provided by an embodiment of the utility model;

[0035] Figure 8 One of the partial structural schematic diagrams of the photovoltaic panel cleaning vehicle provided by the embodiment of the utility model;

[0036] Fig. 9 for Figure 8 The enlarged schematic diagram of point B in the middle;

[0037] Fig.10 The second schematic diagram of the partial structure of the photovoltaic panel cleaning vehicle provided in the embodiment of the utility model.

[0038] Description of reference numerals:

[0039] 100-car body; 110-installation shaft; 120-installation column; 130-travel motor; 140-active track wheel; 150-driven track wheel; 160-support track wheel; 170-track; 180-sensor; 190-control board;

[0040] 200-water spraying device; 210-water tank; 211-cover; 220-self-priming pump; 221-water inlet pipe; 222-water outlet pipe; 230-sprinkler; 240-adjustable bracket; 241-first base; 242-second base; 243-adjusting rod;

[0041] 300-cleaning device; 310-first mounting frame; 311-first top plate; 312-first side plate; 313-front baffle; 314-first connecting arm; 315-first mounting plate; 320-roller brush; 321-roller shaft; 322-brush bar; 330-cleaning motor; 331-driving pulley; 332-driven pulley; 333-transmission belt; 340-torsion spring; 350-tension spring;

[0042] 400-water stain cleaning device; 410-second mounting frame; 411-second top plate; 412-second side plate; 413-rear baffle; 414-third baffle; 415-second connecting arm; 416-second mounting plate; 417-drainage trough; 430-extrusion motor; 431-driving gear; 432-reduction gear; 433-driven gear; 434-gear box; 441-screw; 442-screw sleeve; 450-pressing plate; 451-through groove. DETAILED DESCRIPTION

[0043] In order to make the above-mentioned purposes, features and advantages of the utility model more obvious and easy to understand, the specific embodiments of the utility model are described in detail below in conjunction with the accompanying drawings. It should be understood that the specific embodiments described here are only used to explain the utility model and are not used to limit the utility model.

[0044] This embodiment provides a photovoltaic panel cleaning vehicle, such as Figure 1 , Figure 3 , Figure 4 , Figure 5 and Fig. 9 As shown, the photovoltaic panel cleaning vehicle includes a vehicle body 100 and a water spraying device 200, a cleaning device 300 and a water stain cleaning device 400 arranged on the vehicle body 100. The cleaning device 300 includes a first mounting frame 310, a roller brush 320 and a cleaning motor 330. The first mounting frame 310 is mounted on the vehicle body 100 and is located in front of the vehicle body 100; the roller brush 320 is rotatably mounted on the first mounting frame 310; the cleaning motor 330 is fixedly mounted on the first mounting frame 310, and is used to drive the roller brush 320 to rotate to clean the photovoltaic panel; the water spraying device 200 includes a water tank 210, a self-priming pump 220 and a nozzle 230 connected in sequence by a water pipe, and the water tank 210 and the self-priming pump 220 are connected in sequence by a water pipe. 0 is arranged on the vehicle body 100; the nozzle 230 is arranged on the first mounting frame 310, and is used to spray cleaning liquid to the photovoltaic panel; the water stain cleaning device 400 includes a second mounting frame 410, a sponge and an extrusion motor 430, the second mounting frame 410 is installed on the vehicle body 100 and is located at the rear of the vehicle body 100, and the second mounting frame 410 includes a rear baffle 413; the second mounting frame 410 is installed with a pressing plate 450 that can reciprocate in the front and rear directions; the sponge is arranged between the rear baffle 413 and the pressing plate 450; the extrusion motor 430 is fixedly connected to the second mounting frame 410, and the output shaft of the extrusion motor 430 is transmission-connected to the pressing plate 450, and is used to push and pull the pressing plate 450 to squeeze the sponge.

[0045] The photovoltaic panel cleaning vehicle provided in this embodiment adopts a modular design, including a vehicle body 100, a water spray device 200 and a cleaning device 300 located in front of the vehicle body 100, and a water stain cleaning device 400 located behind the vehicle body 100. Among them, the vehicle body 100 is responsible for walking; the water spray device 200 is used to spray cleaning liquid on the photovoltaic panel to moisten the soil and sand for easy cleaning, thereby improving the cleaning effect, and at the same time, the fine dust is granularized under the action of water mist, effectively avoiding the dust from being raised and causing secondary pollution, and further improving the cleaning effect of the photovoltaic panel; the cleaning device 300 uses a cleaning motor 330 to drive a roller brush 320 to clean the mud and sand on the surface of the photovoltaic panel; the water stain cleaning device 400 effectively absorbs the water stains remaining after cleaning through a sponge, further improving the cleanliness of the photovoltaic panel, and also avoiding the freezing of the photovoltaic panel surface in a low temperature environment, and also squeezes the sponge through the squeezing motor 430 to discharge the water in the sponge in time.

[0046] Therefore, the photovoltaic panel cleaning vehicle provided in this embodiment can greatly improve the cleaning effect of the photovoltaic panel through the water spraying device 200 and the water stain cleaning device 400, and the photovoltaic panel cleaning vehicle provided in this embodiment has very low requirements for water resources. That is, the photovoltaic panel cleaning vehicle provided in this embodiment has good cleaning effect and low requirements for water resources, so it has a wide range of applications and is very suitable for the northwest region.

[0047] In actual use, different modules can be selected according to different application scenarios. Under normal working conditions, the cleaning device 300 and the water spraying device 200 can be installed at the front end, and the self-priming pump 220 and the roller brush 320 can be turned on to spray water and roll sweep; the water stain cleaning device 400 can be installed at the rear end to clean the photovoltaic panel. After the rain, there is no need to spray water and clean. The water stain cleaning device 400 at the rear end can be used alone to clean the water stains remaining on the photovoltaic panel to avoid dust accumulation and sediment agglomeration caused by the scouring after the rain. That is, the photovoltaic panel cleaning vehicle provided in this embodiment is also very flexible to use.

[0048] Specifically, in this embodiment, Figure 3 and Figure 4 As shown, the left and right ends of the first mounting frame 310 are rotatably mounted on the left and right sides of the vehicle body 100, respectively, and a torsion spring 340 is provided between the left and right sides of the vehicle body 100 and the corresponding ends of the first mounting frame 310; the axis of the torsion spring 340 extends in the left-right direction, one end of the torsion spring 340 is fixed to the vehicle body 100, and the other end is fixed to the end of the first mounting frame 310, which is used to press down the first mounting frame 310. In this way, under the downward pressure of the torsion spring 340, the roller brush 320 can be in good contact with the photovoltaic panel, thereby ensuring the cleaning effect of the photovoltaic panel; even when the uneven photovoltaic panel is installed, it can still be effectively cleaned without being affected by the position of the vehicle body 100.

[0049] More specifically, in this embodiment, if Figure 2 As shown, the front ends of the left and right sides of the vehicle body 100 are fixedly provided with mounting shafts 110, and the mounting shafts 110 extend in the left-right direction; the left and right ends of the first mounting frame 310 are provided with first connecting arms 314, and the first connecting arms 314 are rotatably mounted on the corresponding mounting shafts 110; the torsion spring 340 is sleeved on the mounting shaft 110, and one end is fixed to the mounting shaft 110, and the other end is fixed to the corresponding first connecting arm 314. Further, one end of the first connecting arm 314 is fixedly connected to the first side plate 312 of the first mounting frame 310, and the other end is sleeved on the corresponding mounting shaft 110.

[0050] Specifically, in this embodiment, Figure 3 and Figure 5 As shown, two tension springs 350 are further arranged between the first mounting frame 310 and the vehicle body 100; two mounting posts 120 are fixedly arranged at the front ends of the left and right sides of the vehicle body 100, and the mounting posts 120 are both located above the torsion springs 340 on the same side; one end of each of the two tension springs 350 is fixedly connected to the first mounting frame 310, and the other end is fixedly connected to one of the corresponding mounting posts 120. In this way, the tension spring 350 can provide a pulling force for the first mounting frame 310, and the pulling force can make the first mounting frame 310 rotate upward around the axis of the torsion spring 340 by a certain angle, so as to adjust the contact area between the roller brush 320 and the photovoltaic panel. Therefore, in actual use, the fixed position of the tension spring 350 on the vehicle body 100 can be adjusted according to the specific conditions of the sand and dust on the photovoltaic panel (for example: thickness, amount, etc.), and then the contact area between the roller brush 320 and the photovoltaic panel can be adjusted to reduce the consumption of electric energy.

[0051] Specifically, in this embodiment, the two tension springs 350 are symmetrically arranged, so as to provide a relatively balanced tension to the first mounting bracket 310 .

[0052] More specifically, in this embodiment, continue as follows Figure 2 As shown, the tension spring 350 is a tension spring with a hook, and the hook at one end of the tension spring 350 is hooked on one of the several mounting posts 120 on the same side. Preferably, a limiting groove is provided on the mounting post 120, and the hook of the tension spring 350 is hooked in the limiting groove. Of course, the mounting post 120 can also be replaced with a hook or a hanging ring, etc., as long as the end of the tension spring 350 can be fixed.

[0053] It should also be noted here that, although the number of tension springs 350 in this embodiment is two, in other embodiments of the present application, the number of tension springs 350 can also be three, four or five, etc., and by adjusting the number of tension springs 350 used, the tension on the first mounting frame 310 can be adjusted, thereby being able to more finely adjust the contact area between the roller brush 320 and the photovoltaic panel.

[0054] It should also be noted that in other embodiments of the present application, the number of mounting columns 120 on the left and right sides of the vehicle body 100 is not limited to two, but can also be other numbers, for example: three, four or more, and each mounting column 120 has a different stretching length for the tension spring 350, so that the effect of finely adjusting the tension of the tension spring 350 can be achieved by providing more mounting columns 120.

[0055] Specifically, in this embodiment, Figure 4 and Figure 5 As shown, the roller brush 320 includes a roller 321 and three clusters of spiral brush strips 322 arranged on the roller 321, and along the circumference of the roller 321, the angles between two adjacent clusters of brush strips 322 are equal, both 120°. In this configuration, when the roller brush 320 is working, the mud and sand on the surface of the photovoltaic panel are pushed in the spiral direction by the spiral brush strips 322, which can effectively prevent the photovoltaic panel from being contaminated again after cleaning, and achieve the purpose of efficient cleaning.

[0056] Specifically, in this embodiment, the bristles of the roller brush 320 are made of PBT (Polybutyleneterephthalate), which is relatively soft, so it can effectively avoid damage to the photovoltaic panel. The pitch of the brush strips 322 is greater than or equal to 400 mm. It should be noted that in other embodiments of the present application, the number of brush strips 322 is not limited to three clusters, for example: it can also be four clusters or five clusters. In addition, the installation radius of the roller brush 320 can be greater than the radius of the track wheel, so as to increase its contact area with the photovoltaic panel.

[0057] Specifically, in this embodiment, Figure 4 and Figure 5 As shown, the output shaft of the cleaning motor 330 is coaxially fixed with a driving pulley 331, and the roller 321 of the roller brush 320 is coaxially fixed with a driven pulley 332, and a transmission belt 333 is wound around the driving pulley 331 and the driven pulley 332. In this arrangement, after the cleaning motor 330 is started, the driving pulley 331 is driven to rotate, and the driving pulley 331 drives the driven pulley 332 to rotate through the transmission belt 333, and the driven pulley 332 then drives the roller brush 320 to rotate, so as to clean the photovoltaic panel.

[0058] Specifically, in this embodiment, Figures 3 to 5As shown, the first mounting frame 310 includes a first top plate 311 and two first side plates 312 respectively fixedly connected to the left and right ends of the first top plate 311; the nozzle 230 is arranged on the first top plate 311; the two ends of the roller 321 of the roller brush 320 are respectively rotatably arranged on the corresponding first side plates 312, and further, the two ends of the roller 321 of the roller brush 320 are respectively rotatably arranged on the corresponding first side plates 312 through a first connecting arm 314, and the first connecting arm 314 is fixedly connected to the corresponding first side plate 312, for example, the two can be fixedly connected by screws. Preferably, bearings are installed at both ends of the roller 321 of the roller brush 320, and the roller 321 is rotatably installed on the corresponding first connecting arm 314 through the bearings, and the bearings can reduce the wear of the roller 321.

[0059] Specifically, in this embodiment, Figure 4 As shown, the first mounting frame 310 further includes a front baffle 313, the upper end of the front baffle 313 is fixedly connected to the first top plate 311, and the left and right ends are respectively fixedly connected to the corresponding first side plates 312. In this way, the first top plate 311, the two first side plates 312 and the front baffle 313 can all block the dust swept by the roller brush 320, thereby effectively avoiding secondary pollution, and the four can also protect the roller brush 320.

[0060] Specifically, in this embodiment, Figure 4 As shown, the cleaning motor 330 is fixedly mounted on the first top plate 311 of the first mounting frame 310 through the first mounting plate 315. The first mounting plate 315 is "L"-shaped, one plate of which is fixedly connected to the cleaning motor 330, and the other plate is fixedly connected to the lower surface of the first top plate 311.

[0061] Specifically, in this embodiment, Figure 6 As shown, the nozzle 230 is arranged above the first top plate 311 of the first mounting frame 310 through an adjustable bracket 240, and the adjustable bracket 240 includes a first base 241 fixedly arranged on the first top plate 311 and a second base 242 fixedly connected to the nozzle 230, and also includes an adjusting rod 243, and the two ends of the adjusting rod 243 are rotatably connected to the first base 241 and the second base 242, respectively, and the rotation axis is arranged at an angle. Thereby adjusting the spraying area of ​​the nozzle 230. Preferably, the rotation axes at both ends of the adjusting rod 243 are perpendicular to each other, and further, the adjusting rod 243 can swing back and forth around the rotation axis of the lower end, and can swing left and right around the rotation axis of the upper end. In this way, by adjusting the position of the adjustable bracket 240, the spraying direction and spraying area of ​​the nozzle 230 can be adjusted. Preferably, the nozzle 230 itself also has the ability to adjust the spray range, so that the water flow can be adaptively adjusted according to different application scenarios.

[0062] Specifically, in this embodiment, Figure 1 As shown, there are three nozzles 230, one of which is centrally arranged above the first top plate 311 along the left-right direction, and the other two are symmetrically arranged on the left and right sides thereof. Of course, in other embodiments of the present application, the number of nozzles 230 is not limited to three, as long as the spraying range of the nozzles 230 can cover the surface of the photovoltaic panel that needs to be cleaned.

[0063] Specifically, in this embodiment, Figure 1 and Figure 3 As shown, the water tank 210 is fixedly installed above the vehicle body 100 and is fixedly connected to the front and rear sides of the vehicle body 100 by screws, and the water filling port of the water tank 210 is covered with a cover 211; the self-priming pump 220 is fixedly installed on the water tank 210 by two clamps, and the turbine inside the self-priming pump 220 is driven by an electric motor to generate suction. The self-priming pump 220 is connected to the water inlet pipe 221 through the water pipe interface at the bottom to draw the cleaning liquid in the water tank 210 into the pump body, and is connected to the water outlet pipe 222 through the water pipe interface at the top to be connected to the nozzle 230.

[0064] Specifically, in this embodiment, Figure 7 As shown, a lead screw 441 and a screw sleeve 442 threadedly sleeved on the lead screw 441 are arranged between the extrusion motor 430 and the pressure plate 450, the output shaft of the extrusion motor 430 is drivingly connected to the lead screw 441, and the screw sleeve 442 is fixedly connected to the pressure plate 450. Under this arrangement, during the movement of the vehicle body 100, the sponge absorbs a small amount of water stains remaining after the front roller brush 320 cleans, so as to prevent the photovoltaic panel from freezing due to the water stains remaining on the surface; the extrusion motor 430 is connected to the control board 190, and the forward and reverse rotation of the lead screw 441 can be controlled by controlling the forward and reverse rotation of the extrusion motor 430, so that the screw sleeve 442 can reciprocate at a uniform speed in the front and rear directions, i.e., extend and retract, and then the pressure plate 450 at the end of the screw sleeve 442 can squeeze the sponge.

[0065] Specifically, in this embodiment, Figure 7 As shown, the second mounting frame 410 also includes a second top plate 411 and two second side plates 412 respectively fixedly connected to the left and right ends of the second top plate 411. The upper end of the rear baffle 413 is fixedly connected to the second top plate 411, and the left and right ends are respectively fixedly connected to the corresponding second side plates 412. The lower end of the second side plate 412 is provided with a drainage groove 417, and the water squeezed from the sponge is discharged through the drainage groove 417 and flows downward along the photovoltaic panel. In addition, the pressing plate 450 is also provided with a plurality of through grooves 451 for drainage and weight reduction.

[0066] Specifically, in this embodiment, Figure 7As shown, the second side plate 412 is provided with a plurality of slide grooves extending horizontally front to back and spaced apart up and down, and a plurality of sliding shafts are provided at both ends of the pressure plate 450. The plurality of sliding shafts are arranged in one-to-one correspondence with the plurality of slide grooves, and rolling bearings are provided on the outer sleeves of the sliding shafts. The rolling bearings can reduce the sliding friction between the sliding shafts and the slide grooves, thereby reducing the wear of both.

[0067] Specifically, in this embodiment, Figure 8 and Fig. 9 As shown, the output shaft of the extrusion motor 430 is coaxially fixed with a driving gear 431, the lead screw 441 is coaxially fixed with a driven gear 433, and a reduction gear 432 is also arranged between the driving gear 431 and the driven gear 433, and the reduction gear 432 is meshedly connected with both the driving gear 431 and the driven gear 433.

[0068] More specifically, in this embodiment, if Figure 7 As shown, the extrusion motor 430 is fixedly mounted on the second mounting frame 410 through the second mounting plate 416; the driving gear 431, the reduction gear 432 and the driven gear 433 are all arranged in the gear box 434, and the gear box 434 forms protection for each gear.

[0069] Specifically, in this embodiment, Figure 7 As shown, the second mounting frame 410 further includes a third baffle 414 arranged opposite to the rear baffle 413, and the pressing plate 450 is arranged between the rear baffle 413 and the third baffle 414; the left and right ends of the third baffle 414 are fixedly provided with second connecting arms 415, one end of the second connecting arm 415 is fixedly connected to the third baffle 414, and the other end is connected to the vehicle body 100. In this way, the second top plate 411, the two second side plates 412, the rear baffle 413 and the third baffle 414 form an enclosed space with an opening at the bottom, in which the sponge and the pressing plate 450 are arranged, and the overall structure is stable, which can prevent water splashing, and also forms a protective effect for the sponge and the pressing plate 450, and also provides a mounting carrier for the extrusion motor 430 and the like.

[0070] Specifically, in this embodiment, a sensor 180, such as an ultrasonic sensor, is also provided at the bottom of the vehicle body 100, which is connected to the control board 190. During the operation of the photovoltaic panel cleaning vehicle, if the sensor 180 detects the photovoltaic panel, the control board 190 does not give any signal to the travel motor 130; if the photovoltaic panel is not detected, it means that the cleaning vehicle deviates from the photovoltaic panel. At this time, the control board 190 gives an emergency stop signal to the travel motor 130 and adjusts the travel direction of the cleaning vehicle to prevent the cleaning vehicle from falling from the photovoltaic panel. More specifically, there are four sensors 180, which are installed at the four corners of the vehicle body 100 respectively.

[0071] Specifically, in this embodiment, the vehicle body 100 is moved by the crawler 170, and the structure and principle are similar to those of the existing crawler vehicle, so it will not be described in detail here, and only its structure and principle are roughly introduced: two travel motors 130 use gear transmission to drive the crawler wheels installed on both sides of the vehicle body 100 to rotate, and the crawler wheels then drive the rubber crawler 170 with a high friction coefficient to rotate, wherein, as Fig.10 As shown, the track wheels on the front and rear sides are respectively the active track wheel 140 and the driven track wheel 150, and the two in the middle are the supporting track wheels 160, which play a supporting role in the walking of the vehicle body 100; the walking motor 130 can use an adjustable speed closed-loop motor, and the speed of the walking motor 130 is adjusted by the control board 190. The direction of the vehicle body 100 is adjusted by the speed difference between the two walking motors 130, thereby realizing the turning of the vehicle body 100.

[0072] Specifically, in this embodiment, the shell of the vehicle body 100 is entirely made of aluminum profiles, and a battery, a travel motor 130, a control board 190, etc. are arranged inside the shell. The battery provides power to each motor, sensor 180 and self-priming pump 220, etc., and the battery compartment is welded to the bottom plate by angle iron; the control board 190 processes the sensor signal, gives feedback, and controls the steering and travel speed of the vehicle body 100, etc.

[0073] Finally, it should be noted that, in this article, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprises" or any other variations thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device that includes a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0074] The above description of the disclosed embodiments enables those skilled in the art to implement or use the present invention. Various modifications to the embodiments will be apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention will not be limited to the embodiments shown herein, but will conform to the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A photovoltaic panel cleaning vehicle, characterized in that: The invention comprises a vehicle body (100), and a water spraying device (200), a cleaning device (300) and a water stain cleaning device (400) arranged on the vehicle body (100). The cleaning device (300) comprises a first mounting frame (310), a roller brush (320) and a cleaning motor (330); the first mounting frame (310) is mounted on the vehicle body (100) and is located in front of the vehicle body (100); the roller brush (320) is rotatably mounted on the first mounting frame (310); the cleaning motor (330) is fixedly mounted on the first mounting frame (310) and is used to drive the roller brush (320) to rotate to clean the photovoltaic panel; The water spray device (200) comprises a water tank (210), a self-priming pump (220) and a spray head (230) which are sequentially connected via a water pipe; the water tank (210) and the self-priming pump (220) are arranged on the vehicle body (100); the spray head (230) is arranged on the first mounting frame (310) and is used to spray cleaning liquid onto the photovoltaic panel; The water stain cleaning device (400) comprises a second mounting frame (410), a sponge and an extrusion motor (430); the second mounting frame (410) is mounted on the vehicle body (100) and is located at the rear of the vehicle body (100); the second mounting frame (410) comprises a rear baffle (413); the second mounting frame (410) is mounted with a pressure plate (450) capable of reciprocating in a front-rear direction; the sponge is arranged between the rear baffle (413) and the pressure plate (450); the extrusion motor (430) is fixedly connected to the second mounting frame (410), and the output shaft of the extrusion motor (430) is transmission-connected to the pressure plate (450) for pushing and pulling the pressure plate (450) to squeeze the sponge.

2. The photovoltaic panel cleaning vehicle according to claim 1, characterized in that: The left end and the right end of the first mounting frame (310) are rotatably mounted on the left side and the right side of the vehicle body (100), respectively, and a torsion spring (340) is provided between the left side and the right side of the vehicle body (100) and the corresponding end of the first mounting frame (310); the axis of the torsion spring (340) extends in the left-right direction, one end of the torsion spring (340) is fixed to the vehicle body (100), and the other end is fixed to the end of the first mounting frame (310), and is used to press the first mounting frame (310) downward.

3. The photovoltaic panel cleaning vehicle according to claim 2, characterized in that: The front ends of the left and right sides of the vehicle body (100) are fixedly provided with mounting shafts (110), and the mounting shafts (110) extend in the left-right direction; the left and right ends of the first mounting frame (310) are provided with first connecting arms (314), and the first connecting arms (314) are rotatably installed on the corresponding mounting shafts (110); the torsion spring (340) is sleeved on the mounting shaft (110), and one end is fixed to the mounting shaft (110), and the other end is fixed to the corresponding first connecting arm (314).

4. The photovoltaic panel cleaning vehicle according to claim 2 or 3, characterized in that: Two tension springs (350) are also arranged between the first mounting frame (310) and the vehicle body (100); at least two mounting posts (120) are fixedly arranged at the front ends of the left and right sides of the vehicle body (100), and the mounting posts (120) are located above the torsion spring (340) on the same side; one end of the two tension springs (350) is fixedly connected to the first mounting frame (310), and the other end is fixedly connected to one of the corresponding mounting posts (120).

5. The photovoltaic panel cleaning vehicle according to claim 1, characterized in that: The roller brush (320) comprises a roller (321) and a plurality of clusters of spiral brush strips (322) arranged on the roller (321), and along the circumference of the roller (321), the angles between two adjacent clusters of the brush strips (322) are equal.

6. The photovoltaic panel cleaning vehicle according to claim 1, characterized in that: A driving pulley (331) is coaxially fixed to the output shaft of the cleaning motor (330), a driven pulley (332) is coaxially fixed to the roller shaft (321) of the roller brush (320), and a transmission belt (333) is wound around the driving pulley (331) and the driven pulley (332).

7. The photovoltaic panel cleaning vehicle according to claim 1, characterized in that: The first mounting frame (310) comprises a first top plate (311) and two first side plates (312) respectively fixedly connected to the left and right ends of the first top plate (311); the spray head (230) is arranged on the first top plate (311); and the two ends of the roller shaft (321) of the roller brush (320) are respectively rotatably arranged on the corresponding first side plates (312).

8. The photovoltaic panel cleaning vehicle according to claim 1, characterized in that: The nozzle (230) is arranged above the first top plate (311) of the first mounting frame (310) through an adjustable bracket (240), and the adjustable bracket (240) includes a first base (241) fixedly arranged on the first top plate (311) and a second base (242) fixedly connected to the nozzle (230), and also includes an adjustment rod (243), and the two ends of the adjustment rod (243) are respectively rotatably connected to the first base (241) and the second base (242), and the rotation axis is arranged at an angle.

9. The photovoltaic panel cleaning vehicle according to claim 1, characterized in that: A lead screw (441) and a screw sleeve (442) threadedly sleeved on the lead screw (441) are provided between the extrusion motor (430) and the pressure plate (450); the output shaft of the extrusion motor (430) is transmission-connected to the lead screw (441), and the screw sleeve (442) is fixedly connected to the pressure plate (450).

10. The photovoltaic panel cleaning vehicle according to claim 1, characterized in that: The second mounting frame (410) further comprises a second top plate (411) and two second side plates (412) respectively fixedly connected to the left and right ends of the second top plate (411), and the left and right ends of the pressing plate (450) are respectively movably connected to one of the second side plates (412); The upper end of the rear baffle (413) is fixedly connected to the second top plate (411), and the left end and the right end are respectively fixedly connected to the corresponding second side plate (412); The second mounting frame (410) further comprises a third baffle (414) arranged opposite to the rear baffle (413), and the pressing plate (450) is arranged between the rear baffle (413) and the third baffle (414); Second connecting arms (415) are fixedly provided at both the left and right ends of the third baffle (414); one end of the second connecting arm (415) is fixedly connected to the third baffle (414), and the other end is connected to the vehicle body (100).

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