Shielding type dust suppression device for solar photovoltaic panel

Abstract

The utility model discloses a shielding type dust suppression device for a solar photovoltaic panel. The shielding type dust suppression device comprises a solar support, the photovoltaic panel is installed on the solar support, a roller shutter mechanism is installed on the solar support, and a track mechanism is arranged on the outer side of the solar support. The roller shutter mechanism comprises a roller shutter shell installed at the top end of the solar support, a winding drum is installed in the roller shutter shell, roller shutter cloth is wound on the winding drum, the head end of the roller shutter cloth extends out of the roller shutter shell to be connected with a transverse rod, the rail mechanism comprises a rail connected with the photovoltaic panel, a sliding block is installed on the rail, and the two ends of the transverse rod are each provided with a balancing weight. The photovoltaic panel curtain rolling device is reasonable in structure, easy and convenient to operate, suitable for various environments and seasonal environments, high in practicability and high in practicability, and the photovoltaic panel curtain rolling device can be widely applied to various environments and seasonal environments, and the photovoltaic panel curtain rolling device can be widely applied to various environments and seasonal environments. Controllable operation of the winding drum can be conveniently achieved through the clutch connection mode of the control mechanism, dust deposition is effectively reduced, and the photovoltaic power generation efficiency is improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of dust suppression devices, and particularly relates to a shielding type dust suppression device for a solar photovoltaic panel. Background Technique

[0002] With the increasing consumption of traditional non-renewable energy, the development and application of new energy have gradually attracted people's attention. As a new energy source, solar energy has the characteristics of being clean, pollution-free and renewable. Through a solar photovoltaic panel, it can be converted into electric energy only through one energy conversion. In general use, a solar photovoltaic panel can be combined with a controller and an inverter to form a photovoltaic power generation system. Because of its stable and reliable working performance, long service life, flexible layout method, and the characteristics of being able to generate electricity independently or be connected to the grid, it is widely used in various fields.

[0003] Due to the characteristics of solar photovoltaic panels, they are all arranged outdoors. During use, a large amount of dust will be deposited on the surface of the solar photovoltaic panels. These dusts will cause absorption and scattering losses of incident light, thereby greatly reducing the photovoltaic power generation efficiency. Some industrial industries such as steel mills may adopt a 24-hour working system, and the dust generated by emissions at night is even higher than that during the day. In the existing cleaning methods, most of them are to manually clean the surface of the solar photovoltaic panels through equipment. This method is time-consuming and laborious, and will be affected by regions and seasons. In water-scarce regions, due to the large amount of water used, it will cause waste of resources. When cleaning with water in winter, ice layers will condense on the surface of the solar photovoltaic panels, affecting the incidence of light. Summary of the Invention

[0004] Aiming at the deficiencies existing in the prior art, the purpose of the utility model is to provide a shielding type dust suppression device for a solar photovoltaic panel, which can solve the technical problems of reducing the power generation efficiency due to deposited dust during existing use, being time-consuming and laborious for cleaning, and being affected by regions and seasons.

[0005] In order to solve the above technical problems, the utility model is realized by adopting the following technical scheme:

[0006] A shielding type dust suppression device for a solar photovoltaic panel, including a solar bracket, a photovoltaic panel is installed on the solar bracket, a rolling curtain mechanism is installed on the solar bracket, and a track mechanism is arranged outside the solar bracket;

[0007] The described rolling curtain mechanism includes a rolling curtain device housing, a winding drum, a rolling curtain fabric, and a cross bar. The rolling curtain device housing is horizontally installed at the top end of the solar bracket. Both ends of the winding drum are detachably installed on the two horizontal inner walls of the rolling curtain device housing. The tail end of the rolling curtain fabric is fixedly installed on the wall of the winding drum. The rolling curtain fabric is wound around the winding drum, and the head end of the rolling curtain fabric extends out of the rolling curtain device housing and is connected to the cross bar. The cross bar is arranged above the photovoltaic panel, and the cross bar can drive the rolling curtain fabric to move along the length direction of the photovoltaic panel on the track mechanism.

[0008] The present utility model further includes the following technical features:

[0009] The described track mechanism includes a pair of identical slide rail assemblies, and the pair of slide rail assemblies are respectively arranged on the two lateral sides of the solar bracket;

[0010] The slide rail assembly includes a long bracket arranged on the outer side of the top end of the solar bracket and a short bracket arranged on the outer side of the bottom end of the solar bracket. The top end of the long bracket is connected to the top end of the short bracket through a slide rail. The slide rail is at the same height as the photovoltaic panel, and a slider is installed on the slide rail;

[0011] Both ends of the cross bar are respectively arranged above a pair of the sliders and are connected to them. The slider can drive the cross bar to move along the slide rail.

[0012] A counterweight block is respectively installed at both ends of the cross bar, and the counterweight block is fixedly installed above the slider through an angle code.

[0013] A control mechanism is further arranged in the rolling curtain device housing. The control mechanism includes a driving component arranged at one end of the rolling curtain device housing. One end of the winding drum facing the driving component is installed with a propulsion component. A switch is arranged on the rolling curtain device housing;

[0014] The driving component includes a driving motor installed on the inner wall of the rolling curtain device housing. The driving shaft of the driving motor is coaxially arranged with the winding drum, and a driving disk is installed at the end of the driving shaft;

[0015] The propulsion component includes a rotating sleeve sleeved at one end of the winding drum. The other end of the rotating sleeve is sleeved with a support base. A propulsion motor is respectively installed on the inner walls on the upper and lower sides of the rotating sleeve. A telescopic rod is installed on the propulsion motor, and the movable end of the telescopic rod is connected to the side wall of the support base facing the winding drum. The rotating sleeve can only rotate around its own axis relative to the support base, and the whole of the rotating sleeve and the support base can move axially relative to the winding drum;

[0016] On the end faces of the driving disk and the rotating sleeve facing each other, reverse teeth that engage with each other are arranged along the circumferential direction.

[0017] One end of the rotating sleeve is axially provided with a sliding chamber, and a pair of sliding grooves are axially provided on the inner wall of the sliding chamber. One end of the winding drum is integrally provided with a plug connector, and a pair of axially arranged convex blocks are provided on the side wall of the plug connector. The sliding chamber is sleeved on the plug connector, and the pair of convex blocks drive the rotating sleeve to axially move relative to the plug connector along the sliding grooves on their corresponding sides.

[0018] A convex ring is provided on the outer wall of the other end of the rotating sleeve. A through hole for the rotating sleeve to pass through is provided on the support base, and an annular groove is axially provided on the inner wall of the through hole. The convex ring is arranged in the annular groove.

[0019] One fixed square tube is installed on each of the lateral two sides at the top of the solar bracket. The roller shutter housing is installed below the pair of fixed square tubes, and the lower surface of the roller shutter cloth is in contact with the top end of the photovoltaic panel.

[0020] The included angles between the photovoltaic panel and the pair of slide rails and the horizontal plane are 30° to 60°.

[0021] The mass of the counterweight is 1 to 1.5 kg.

[0022] One adjusting nut is installed on the lateral outer wall of each of the pair of sliders. One end of the adjusting nut is in contact with the surface of the slide rail, and the other end of the adjusting nut is connected with a locking rod.

[0023] Limit blocks are installed at both ends of the pair of slide rails.

[0024] Compared with the prior art, the utility model has the following technical effects:

[0025] The structure of the utility model is reasonable and the operation is simple. It is applicable to various environments and seasons. The clutch connection mode of the control mechanism can conveniently realize the controllable operation of the winding drum. In the separated state, the roller shutter cloth in the roller shutter mechanism is unfolded by using the gravity principle, saving electric energy to a certain extent. In the engaged state, the roller shutter cloth can be retracted and controlled to maintain the retracted state. By combining the gravity principle and the mechanical principle, an active shielding type dust prevention and protection is provided for the photovoltaic panel, effectively reducing the dust deposition on the photovoltaic panel, improving the photovoltaic power generation efficiency, and saving the labor cost and time cost during cleaning. Description of the Drawings

[0026] Figure 1 is a three-dimensional schematic diagram of the overall structure of the utility model.

[0027] Figure 2 is a front view schematic diagram of the overall structure of the utility model.

[0028] Figure 3 is a side view schematic diagram of the overall structure of the utility model.

[0029] Figure 4 It is a partial schematic view of the slider part of the track mechanism of the present utility model.

[0030] Figure 5 It is a partial schematic view of the limit block part of the track mechanism of the present utility model.

[0031] Figure 6 It is a schematic structural view of the control mechanism of the present utility model.

[0032] Figure 7 It is a partial schematic view of the control mechanism of the present utility model.

[0033] Figure 8 It is a schematic structural view of the support base of the present utility model.

[0034] Figure 9 It is a schematic structural view of the rotating sleeve of the present utility model.

[0035] Figure 10 It is a schematic structural view of the end of the drum of the present utility model.

[0036] Figure 11 It is an exploded view of the drive assembly of the present utility model.

[0037] The meanings of the various reference numerals in the figure are as follows:

[0038] 1. Solar bracket, 2. Photovoltaic panel, 3. Roller shutter mechanism, 4. Track mechanism, 5. Control mechanism, 6. Switch, 7. Fixed square tube;

[0039] 31. Roller shutter housing, 32. Drum, 33. Roller shutter cloth, 34. Cross bar, 35. Weight, 36. Angle code, 37. Plug joint, 38. Protrusion;

[0040] 41. Long bracket, 42. Short bracket, 43. Slide rail, 44. Slider, 45. Adjusting nut, 46. Locking rod, 47. Limit block.

[0041] 51. Drive assembly, 52. Propulsion assembly, 53. Reverse teeth;

[0042] 511. Drive motor, 512. Drive shaft, 513. Drive disk, 514. Mounting hole, 515. Spring, 516. Strip groove, 517. Protrusion;

[0043] 521. Rotating sleeve, 522. Support base, 523. Propulsion motor, 524. Telescopic rod, 525. Sliding cabin, 526. Sliding groove, 527. Convex ring, 528. Through hole, 529. Annular groove.

[0044] The following further elaborates on the specific content of the present utility model in conjunction with embodiments. Specific embodiments

[0045] Following the above technical solutions, the specific embodiments of the present utility model are given below. It should be noted that the present utility model is not limited to the following specific embodiments, and all equivalent transformations made on the basis of the technical solutions of this application fall within the protection scope of the present utility model.

[0046] In the present utility model, unless otherwise stated, orientation terms such as "upper", "lower", "left", "right", etc. generally refer to those defined based on the drawing surface in the corresponding drawings. "Inner" and "outer" refer to the inside and outside of the contour of the corresponding component, and "longitudinal", "lateral", and "vertical" refer to the marked directions in the drawings.

[0047] Embodiment:

[0048] This embodiment provides a shielding dust suppression device for a solar photovoltaic panel, as Figures 1 to 11 shown, which includes a solar bracket 1, a photovoltaic panel 2 is installed on the solar bracket 1, a rolling curtain mechanism 3 is installed on the solar bracket 1, and a track mechanism 4 is arranged outside the solar bracket 1;

[0049] The rolling curtain mechanism 3 includes a rolling curtain device housing 31, a winding drum 32, a rolling curtain cloth 33, and a cross bar 34. The rolling curtain device housing 31 is horizontally installed at the top of the solar bracket 1, the winding drum 32 is horizontally installed inside the rolling curtain device housing 31, the rolling curtain cloth 33 is wound on the winding drum 32, the head end of the rolling curtain cloth 33 extends out of the rolling curtain device housing 31 and is connected to the cross bar 34. The cross bar 34 is arranged above the photovoltaic panel 2, and the cross bar 34 can drive the rolling curtain cloth 33 to move along the length direction of the photovoltaic panel 2 on the track mechanism 4.

[0050] During the day when the photovoltaic panel 2 is working, the cross bar 34 in this device is placed at the top of the track mechanism 4, and the rolling curtain cloth 33 is stored in the rolling curtain device housing 31. When it enters the night and the photovoltaic panel 2 stops working, the cross bar 34 can be moved from the top of the track mechanism 4 to the bottom of the track mechanism 4, and at the same time, the rolling curtain cloth 33 is pulled out from the rolling curtain device housing 31. Since the rolling curtain device housing 31 is arranged at the top of the solar bracket 1, the extended rolling curtain cloth 33 can completely cover the upper surface of the photovoltaic panel 2, effectively reducing the dust deposition on the surface of the photovoltaic panel 2 at night, and thus ensuring the photovoltaic power generation efficiency.

[0051] As a preferred solution of this embodiment, in this embodiment, the track mechanism 4 includes a pair of rail assemblies with the same structure, and the pair of rail assemblies are respectively arranged on the lateral sides of the solar bracket 1;

[0052] The sliding rail assembly includes a long bracket 41 arranged on the outer side of the top end of the solar bracket 1 and a short bracket 42 arranged on the outer side of the bottom end of the solar bracket 1. The top end of the long bracket 41 is connected to the top end of the short bracket 42 through a sliding rail 43. The sliding rail 43 is in the same plane as the photovoltaic panel 2, and a slider 44 is installed on the sliding rail 43;

[0053] Both ends of the cross bar 34 are respectively arranged above and connected to a pair of the sliders. The slider 44 can drive the cross bar 34 to move along the sliding rail 43. In this embodiment, the sliding rail 43 is a smooth cylinder. A non-closed structure chute matching the sliding rail 43 is opened along the length direction of the sliding rail 43 under the slider 44, and the surface of the chute is smooth, so that the cross bar 34 can smoothly slide from the top end of the sliding rail 43 to the bottom end of the sliding rail 43 under the drive of the slider 44 under the action of gravity. The lowest point of the sliding rail 43 is lower than the lowest point of the photovoltaic panel 2 to ensure that the rolling curtain 33 covers the whole photovoltaic panel 2 after being unfolded. The height of the sliding rail 43 is flush with the photovoltaic panel 2, and the shadows generated by the rolling curtain 33 and the rolling curtain housing 31 will not affect the operation of other photovoltaic panels 2.

[0054] Furthermore, a counterweight 35 is installed at each end of the cross bar 34. The counterweight 35 is fixedly installed above the slider 44 through an angle code 36. The weight of the counterweight 35 is added to the cross bar 34 to improve the driving force for the cross bar 34 to slide downward.

[0055] As a preferred solution of this embodiment, a control mechanism 5 is further arranged in the rolling curtain housing 31 in this embodiment. The control mechanism 5 includes a driving assembly 51 arranged at one end of the rolling curtain housing 31. A propulsion assembly 52 is installed at one end of the winding drum 32 facing the driving assembly 51, and a switch 6 is arranged on the rolling curtain housing 31;

[0056] The driving assembly 51 includes a driving motor 511 installed on the inner wall of the rolling curtain housing 31. The driving shaft 512 of the driving motor 511 is coaxially arranged with the winding drum 32. A driving disk 513 is installed at the end of the driving shaft 512, and the driving disk 513 rotates around the driving shaft 512 as the axis;

[0057] The propulsion assembly 52 includes a rotating sleeve 521 sleeved at one end of the winding drum 32. A support base 522 is sleeved at the other end of the rotating sleeve 521. A propulsion motor 523 is respectively installed on the inner walls of the rolling curtain housing 31 on the upper and lower sides of the rotating sleeve 521. A telescopic rod 524 is installed on the propulsion motor 523, and the movable end of the telescopic rod 524 is connected to the side wall of the support base 522 facing the winding drum 32; Anti-teeth 53 that engage with each other are arranged along the circumferential direction on the end faces of the driving disk 513 and the rotating sleeve 521 facing each other.

[0058] Specifically, a sliding chamber 525 is axially formed at one end of the rotating sleeve 521. A pair of sliding grooves 526 are axially formed on the inner wall of the sliding chamber 525. One end of the winding drum 32 facing the rotating sleeve 521 is integrally provided with a plug connector 37 matching the sliding chamber 525. A pair of axially arranged convex blocks 38 are provided on the side wall of the plug connector 37. The sliding chamber 525 is sleeved on the plug connector 37, and the pair of convex blocks 38 move along the corresponding sliding groove 526 on one side, so that the rotating sleeve 521 can axially move relative to the plug connector 37.

[0059] A through hole 528 through which the rotating sleeve can pass is formed on the support base 522. An annular groove 529 is circumferentially formed on the inner wall of the through hole 528. A convex ring 527 is provided on the outer wall of the other end of the rotating sleeve 521. The other end of the rotating sleeve 521 passes through the through hole 528 and extends outside the support base 522. The convex ring 527 is arranged in the annular groove 529. Due to the limiting effect of the annular groove 529, the rotating sleeve 521 can only rotate around its own axis relative to the support base 522, and the whole of the rotating sleeve 521 and the support base 522 can axially move relative to the winding drum 32.

[0060] When it is necessary to release the rolling curtain 33 to cover the photovoltaic panel 2, the driving assembly 51 and the propulsion assembly 52 are not in contact. The winding drum 32 drives the rotating sleeve 521 to rotate along the axis. When it is necessary to retract the rolling curtain 33, the propulsion motor 523 is first turned on through the switch 6. The propulsion motor 523 urges the telescopic rod 524 to push the support base 522 in the direction of the driving assembly 51. Due to the fitting relationship between the convex ring 527 and the annular groove 529, the support base 522 drives the rotating sleeve 521 to move in the direction of the driving assembly 51. When the rotating sleeve 521 contacts the driving disc 513, the propulsion motor 523 is turned off, and then the driving motor 511 is started. The driving motor 511 rotates slowly. The reverse teeth 53 arranged circumferentially on the end faces of the driving disc 513 and the rotating sleeve 521 facing each other are engaged with each other. The driving disc 513 drives the rotating sleeve 521 to rotate axially. Due to the connection mode between the convex block 38 in the sliding chamber 525 and the sliding groove 526, the rotating sleeve 521 will further drive the winding drum 32 to rotate, and then retract the rolling curtain 33 onto the winding drum 32.

[0061] The above structural settings of the control mechanism 5 neither restrict the unfolding of the rolling curtain 33 under the action of gravity nor can smoothly retract the rolling curtain 33.

[0062] Further, in order to ensure the accurate engagement of the reverse teeth 53 on the driving disk 513 and the rotating sleeve 521, an installation hole 514 is provided at the axis center of the driving disk 513. An axially arranged spring 515 is installed in the installation hole 514. The end of the driving shaft 512 extends into the installation hole 514 and contacts the end face of the spring 515. A strip-shaped groove 516 with both ends closed is provided on the side wall of the installation hole 514. A protrusion 517 is provided on the side wall of the end of the driving shaft 512. The protrusion 517 can move within the strip-shaped groove 516. When the reverse teeth 53 at the end of the rotating sleeve 521 contact the reverse teeth 53 on the driving disk 513 but fail to engage, at this time, the spring 515 in the driving disk 513 is in a compressed state. After the driving disk 513 rotates slightly, when the reverse teeth 53 of the two correspond, the driving disk 513 moves slightly towards the rotating sleeve 521 under the action of the elastic force, ensuring the successful engagement of the reverse teeth 53 at the end of the rotating sleeve 52 and the reverse teeth 53 of the driving disk 513.

[0063] As a preferred solution of this embodiment, in this embodiment, a fixed square tube 7 is installed on each of the lateral two sides at the top of the solar bracket 1. The roller shutter housing 31 is installed below a pair of fixed square tubes 7. Thus, the roller shutter housing 31 is arranged below the top of the solar bracket 1. The lower surface of the roller shutter cloth 33 pulled out from the roller shutter housing 1 contacts the top of the photovoltaic panel 2. When the roller shutter cloth 33 is retracted, since the roller shutter housing 31 is located below the top of the solar bracket 1, the roller shutter cloth 33 outside the roller shutter housing 31 and the photovoltaic panel 2 are not in a parallel state but have a certain included angle. The dust deposited on the roller shutter cloth 33 does not fall back onto the photovoltaic panel 2 due to gravity but falls from the outside of the top of the solar bracket 1.

[0064] As a preferred solution of this embodiment, in this embodiment, the included angles between the photovoltaic panel 2 and a pair of slide rails 43 and the horizontal plane are 30° - 60°, which can not only ensure that the photovoltaic panel 2 can fully absorb light but also ensure that the cross bar 34 slides down under the action of gravity.

[0065] Further, the mass of the counterweight 35 is 1 - 1.5 kg. The number of counterweights 35 can be increased or decreased according to the value of the included angle between the slide rail 43 and the horizontal plane. The setting of the angle and the weight of the counterweight 35 can ensure that the cross bar 34 can slide down smoothly under the action of gravity.

[0066] As a preferred solution of this embodiment, in this embodiment, an adjusting nut 45 is installed on the lateral outer side walls of a pair of sliders 44. One end of the adjusting nut 45 contacts the surface of the slide rail 43. The smoothness of the slider 44 on the slide rail 43 is controlled by adjusting the tightness of the adjusting nut 45. Also, in case of bad weather such as strong wind, the slider 44 can be fixed at the corresponding position on the slide rail 43 by tightening the adjusting nut 45 to prevent the roller shutter cloth 33 from being lifted by the strong wind. The other end of the adjusting nut 45 is connected with a locking rod 46 for easy operation.

[0067] As a preferred solution of this embodiment, limit blocks 47 are installed at both ends of a pair of slide rails 43 in this embodiment to prevent the slider 44 from slipping off the slide rails 43.

[0068] During the actual operation of this embodiment:

[0069] When night falls and the rolling curtain 33 needs to be released to cover the photovoltaic panel 2, the driving assembly 51 and the propulsion assembly 52 are in a separated state. The rolling curtain 33 runs downward along the slide rails 43 under the gravity of the cross bar 34 and the counterweight 35 and unfolds until the slider 44 slides to the bottom end of the slide rails 43 and is intercepted and stopped by the limit block 47. At this time, the upper surface of the photovoltaic panel 2 is completely covered by the rolling curtain 33. When the photovoltaic panel 2 needs to work during the day, the propulsion motor 523 is controlled by the switch 6 to prompt the telescopic rod 524 to push the support base 522 towards the driving assembly 51. The rotating sleeve 521 moves towards the driving assembly 51 driven by the support base 522. When the rotating sleeve 521 contacts the driving disc 513, the propulsion motor 523 is turned off, and then the driving motor 511 is started to run slowly. When the reverse teeth 53 at the end of the rotating sleeve 521 are staggered from the reverse teeth 53 of the driving disc 513, the driving disc 513 is pushed towards the end of the rotating sleeve 521 under the action of the spring until the reverse teeth 53 at the end of the rotating sleeve 521 are successfully engaged with the reverse teeth 53 of the driving disc 513. The rotating sleeve 521 starts to drive the winding drum 32 to rotate under the action of the driving disc 513, and the unfolded rolling curtain 33 is retracted into the rolling curtain housing 31 and wound on the winding drum 32 until the slider 44 is blocked and stopped by the limit block 47 at the upper end of the slide rails 43. The driving motor 511 is turned off. It should be noted that at this time, the propulsion motor 523 is not started again, and the reverse teeth 53 of the driving disc 513 are kept engaged with the reverse teeth 53 of the rotating sleeve 521, so that the rolling curtain 33 is in the retracted state. When night falls again, the propulsion motor 523 is started to prompt the telescopic rod 524 to retract the support base 522 towards the winding drum 32. After the driving disc 513 and the rotating sleeve 521 are separated, the rolling curtain 33 will unfold under the gravity of the cross bar 34 and the counterweight 35.

Claims

1. A shielded dust suppression device for a solar photovoltaic panel, comprising a solar support (1), a photovoltaic panel (2) being mounted on the solar support (1), characterized in that: A rolling shutter mechanism (3) is installed on the solar support (1), and a track mechanism (4) is arranged on the outer side of the solar support (1); The rolling mechanism (3) comprises a rolling housing (31), a reel (32), a rolling cloth (33) and a cross bar (34); the rolling housing (31) is transversely mounted on the top end of the solar support (1); the two ends of the reel (32) are detachably mounted on two transverse inner walls of the rolling housing (31); the tail end of the rolling cloth (33) is fixedly mounted on the wall of the reel (32); the rolling cloth (33) is rolled on the reel (32); the head end of the rolling cloth (33) extends out of the rolling housing (31) and is connected to the cross bar (34); the cross bar (34) is arranged above the photovoltaic panel (2); and the cross bar (34) can drive the rolling cloth (33) to move on the track mechanism (4) along the length direction of the photovoltaic panel (2).

2. The shielding dust suppression device for solar photovoltaic panels according to claim 1, characterized in that: The track mechanism (4) comprises a pair of slide rail assemblies with the same structure, and the pair of slide rail assemblies are respectively arranged on two lateral sides of the solar energy support (1); The slide rail assembly comprises a long bracket (41) arranged on the outside of the top end of the solar bracket (1) and a short bracket (42) arranged on the outside of the bottom end of the solar bracket (1), the top end of the long bracket (41) and the top end of the short bracket (42) are connected via a slide rail (43), the slide rail (43) is at the same height as the photovoltaic panel (2), and a slider (44) is installed on the slide rail (43); The two ends of the cross bar (34) are respectively arranged above a pair of sliding blocks (44) and connected thereto, and the sliding blocks (44) can drive the cross bar (34) to move along the slide rail (43).

3. The shielding dust suppression device for solar photovoltaic panels according to claim 2, characterized in that: A counterweight block (35) is respectively installed at both ends of the crossbar (34), and the counterweight block (35) is fixedly installed above the sliding block (44) through an angle code (36).

4. The shielding dust suppression device for solar photovoltaic panels according to claim 1, characterized in that: A control mechanism (5) is further provided in the shutter roller housing (31), the control mechanism (5) comprising a driving assembly (51) provided at one end of the shutter roller housing (31), a propulsion assembly (52) being installed at one end of the roller (32) facing the driving assembly (51), and a switch (6) being provided on the shutter roller housing (31); The driving assembly (51) comprises a driving motor (511) mounted on the inner wall of the roller housing (31); a driving shaft (512) of the driving motor (511) is coaxially arranged with the roller (32); and a driving disc (513) is mounted on the end of the driving shaft (512); The propulsion assembly (52) comprises a rotating sleeve (521) with one end sleeved on one end of the winding drum (32), the other end of the rotating sleeve (521) being sleeved on a supporting base (522), a propulsion motor (523) being respectively mounted on the inner walls of the roller shutter housing (31) on the upper and lower sides of the rotating sleeve (521), a telescopic rod (524) being mounted on the propulsion motor (523), the movable end of the telescopic rod (524) being connected to the side wall of the supporting base (522) facing the winding drum (32), the rotating sleeve (521) can only rotate around its own axis relative to the supporting base (522), and the rotating sleeve (521) and the supporting base (522) as a whole can move axially relative to the winding drum (32); The end surfaces of the driving disc (513) and the rotating sleeve (521) facing each other are provided with inverted teeth (53) that mesh with each other along the circumferential direction.

5. The shielding dust suppression device for solar photovoltaic panels according to claim 4, characterized in that: A sliding chamber (525) is axially provided at one end of the rotating sleeve (521), and a pair of sliding grooves (526) are axially provided on the inner wall of the sliding chamber (525); a plug connector (37) is integrally provided at one end of the winding drum (32), and a pair of axially provided protrusions (38) are provided on the side wall of the plug connector (37); the sliding chamber (525) is sleeved on the plug connector (37), and the pair of protrusions (38) drive the rotating sleeve (521) to move axially relative to the plug connector (37) along the sliding grooves (526) on the corresponding sides thereof; A convex ring (527) is arranged on the outer wall of the other end of the rotating sleeve (521), a through hole (528) is provided on the supporting base (522) for the rotating sleeve to pass through, an annular groove (529) is arranged on the inner wall of the through hole (528) along the circumferential direction, and the convex ring (527) is arranged in the annular groove (529).

6. The shielding dust suppression device for solar photovoltaic panels according to claim 1, characterized in that: A fixed square tube (7) is installed on both sides of the top of the solar bracket (1), and the roller shutter housing (31) is installed below a pair of the fixed square tubes (7). The lower surface of the roller shutter cloth (33) is in contact with the top of the photovoltaic panel (2).

7. The shielding dust suppression device for solar photovoltaic panels according to claim 2, characterized in that: The angle between the photovoltaic panel (2) and the pair of slide rails (43) and the horizontal plane is 30° to 60°.

8. The shielding dust suppression device for solar photovoltaic panels according to claim 3, characterized in that: The mass of the counterweight (35) is 1-1.5 kg.

9. The shielding dust suppression device for solar photovoltaic panels according to claim 2, characterized in that: An adjusting nut (45) is installed on the lateral outer side wall of the pair of sliding blocks (44), one end of the adjusting nut (45) contacts the surface of the slide rail (43), and the other end of the adjusting nut (45) is connected to a locking rod (46).

10. The shielding dust suppression device for solar photovoltaic panels according to claim 2, characterized in that: Limiting blocks (47) are installed at both ends of the pair of slide rails (43).

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