Offshore photovoltaic panel cleaning device and method

Abstract

The offshore photovoltaic panel cleaning device comprises a supporting part, a photovoltaic panel is obliquely installed on the top of the supporting part, the supporting part is connected with a cleaning part, and the bottom of the cleaning part is connected with a buoyancy piece floating on the sea surface; the cleaning part comprises a mounting plate, one end of the mounting plate is connected with the supporting part, a water spraying part is arranged on the mounting plate, a first transmission assembly is connected to the water spraying part and located at the bottom of the mounting plate, a supporting part is connected to the first transmission assembly, and the supporting part is mounted on the supporting part; a second transmission assembly and a third transmission assembly are connected to the supporting piece, a buoyancy piece is installed at the bottom of the third transmission assembly, and the second transmission assembly is in linkage with the third transmission assembly and the first transmission assembly. According to the device, efficient, automatic and environment-friendly cleaning of the offshore photovoltaic panel is achieved, manual cleaning is omitted, the photovoltaic panel is continuously cleaned through the action of sea waves in the cleaning process, the power generation efficiency of the photovoltaic panel is greatly improved, and the service life of the photovoltaic panel is greatly prolonged.

Description

Technical Field

[0001] The present invention belongs to the field of new energy technology, and in particular to an offshore photovoltaic panel cleaning device and method. Background Art

[0002] As an emerging renewable energy power generation method, fixed offshore photovoltaics have been widely used in my country's coastal areas in recent years. Its advantage is that it can make full use of the vast ocean space while avoiding the occupation of land resources. It is of great significance to alleviate energy pressure and promote green and low-carbon development. However, although fixed offshore photovoltaics have many advantages in design and construction, they still face a series of challenges in long-term operation, especially the cleaning of photovoltaic panels.

[0003] In terms of cleaning, due to the special location and installation method of fixed offshore photovoltaic devices, traditional ground cleaning equipment and methods cannot be used directly. At present, the main method adopted is manual cleaning one by one by boat. This method is not only inefficient, but also has safety hazards. Workers need to work on the water for a long time and are easily affected by wind and waves. They may also face risks such as improper ship operation and falling into the water. In addition, the cleaning cycle of fixed offshore photovoltaic panels also has an important impact on their power generation efficiency. If the cleaning is not timely, the debris on the photovoltaic panels will block the sunlight and reduce the conversion rate of light energy, thereby affecting the power generation and economic benefits of the entire photovoltaic power station. Summary of the invention

[0004] In order to solve the problem that the deposits accumulated on the surface of existing offshore photovoltaic panels are cleaned manually periodically, the cleaning efficiency is low, the safety is low, and the power generation efficiency is affected, the present invention provides an offshore photovoltaic panel cleaning device and method.

[0005] To achieve the above object, the present invention provides the following technical solutions: The present invention proposes an offshore photovoltaic panel cleaning device, comprising a support portion, a photovoltaic panel is obliquely mounted on the top of the support portion, a cleaning portion is connected to the support portion, and a buoyancy member floating on the sea surface is connected to the bottom of the cleaning portion. The waves cause the buoyancy member to float up and down, so that the cleaning portion absorbs seawater and sprays the absorbed seawater on the photovoltaic panel to clean the photovoltaic panel. The cleaning part comprises a mounting plate, one end of which is connected to the supporting part, a water spraying member is arranged on the mounting plate, a first transmission assembly is connected to the water spraying member at the bottom of the mounting plate, a supporting member is connected to the first transmission assembly, and the supporting member is mounted on the supporting part; The support member is connected with a second transmission assembly and a third transmission assembly, the buoyancy member is installed at the bottom of the third transmission assembly, and the second transmission assembly is linked with the third transmission assembly and the first transmission assembly respectively, so that the third transmission assembly is operated by the action of waves on the buoyancy member, and the second transmission assembly is driven to operate, so that the first transmission assembly is operated, and the first transmission assembly is operated to make the water spraying member first absorb seawater and then spray the absorbed seawater on the photovoltaic panel.

[0006] Preferably, the water spraying member comprises a water spraying cylinder, the water spraying cylinder is mounted on the mounting plate, a spray head is arranged at one end of the water spraying cylinder, and a first check valve is arranged in the spray head; A piston is movably installed in the water spray barrel, and a third connecting rod is connected to the piston. One end of the third connecting rod passes through an end of the water spray barrel away from the spray head and is connected to the first transmission assembly; A water suction pipe is connected to the water spray barrel near the nozzle, one end of the water suction pipe is connected to the interior of the water spray barrel, and the other end of the water suction pipe extends below the sea surface.

[0007] Preferably, the first transmission assembly comprises a connecting seat, a connecting block is slidably connected in the connecting seat, a sliding rod and a guide rod are installed on the connecting block, the guide rod is fixedly connected to an end of the third connecting rod away from the piston, and the sliding rod is linked with the second transmission assembly; A connecting platform is provided on the connecting seat at a position close to the third connecting rod, a fixing rod is installed on the connecting platform, and an elastic member is connected between the fixing rod and the sliding rod.

[0008] Preferably, the support member comprises a first connecting arm, a second connecting arm and a first supporting rod; One end of the first connecting arm, the first supporting rod and the second connecting arm are all fixed on the supporting portion, the other end of the second connecting arm is fixed on the connecting seat, and the second transmission assembly is installed on the second connecting arm; The other end of the first connecting arm is provided with a fixing ring, a connecting shaft is rotatably connected in the fixing ring, one end of the connecting shaft is connected to the second transmission assembly, and the other end of the connecting shaft is connected to the third transmission assembly; The other end of the first support rod is fixedly connected to the third transmission assembly.

[0009] Preferably, the second transmission assembly comprises a cam, a first gear and a second gear, and the cam is linked with the sliding rod; The cam is rotatably mounted on the second connecting arm, and the cam is coaxially connected to the second gear so that the cam and the second gear rotate synchronously; The first gear is mounted on the top end of the connecting shaft, and the second gear is meshed with the first gear.

[0010] Preferably, the third transmission assembly includes a slide rail and a rotating shaft; One end of the slide rail is connected to the fixed ring, a slide rod is slidably connected in the slide rail, one end of the slide rod is connected to a limited end plate, one end of the limited end plate is connected to a connecting arm, a connecting sleeve is provided on the connecting arm, the connecting sleeve is rotatably mounted on the rotating shaft, a connecting plate is obliquely mounted on the rotating shaft, and the connecting plate is fixed to the bottom end of the connecting shaft; A limiting cap is provided at the other end of the sliding rod and is attached to the outer wall of the sliding rail. A second connecting rod is connected to the limiting cap. The axis of the second connecting rod is perpendicular to the axis of the sliding rod. The second connecting rod is vertically connected to the first connecting rod. The bottom end of the first connecting rod is connected to the buoyancy member through a ball joint.

[0011] Preferably, a filter is provided on the end of the water suction pipe below the sea surface, and a second check valve is provided in the water suction pipe.

[0012] Preferably, the filter element is one of a multi-media filter, an activated carbon filter, a precision filter and a security filter. Preferably, the support portion includes a plurality of fixed piles, and the plurality of fixed piles are vertically installed on the seabed, and the tops of the plurality of fixed piles form an inclined mounting surface, and the photovoltaic panel is mounted on the inclined mounting surface, and the fixed pile located at the lowest end of the photovoltaic panel is connected to a fixing sleeve, and the fixing sleeve is connected to the mounting plate and the support member.

[0013] The present invention proposes a method for cleaning an offshore photovoltaic panel, which is applied to the above-mentioned offshore photovoltaic panel cleaning device, and comprises the following steps: The buoyancy member is acted upon by the waves, so that the third transmission assembly reciprocates, and the third transmission assembly drives the second transmission assembly to operate, and the first transmission assembly reciprocates through the second transmission assembly; The first transmission assembly drives the water spraying member to absorb seawater and spray the absorbed seawater onto the photovoltaic panel.

[0014] Compared with the prior art, the present invention has the following beneficial technical effects: The present invention proposes an offshore photovoltaic panel cleaning device, which uses waves as the main power source to drive the cleaning process, so that the buoyancy member floats up and down on the sea surface in the area where the device is installed with the rise and fall of the waves, and converts the mechanical energy received by the buoyancy member into energy to drive the operation of the cleaning part, without the need for additional electricity or manpower investment, thereby reducing the cleaning cost and also reducing the impact on the environment; the water spraying member in the cleaning part drives it to repeatedly absorb and spray water through the first transmission component, and the first transmission component forms a linkage mechanism with the buoyancy member through the second transmission component and the third transmission component, ensuring that the effect of the waves on the buoyancy member can be smoothly transmitted to the inside of the water spraying member, thereby realizing the continuous action of absorbing and spraying water, so that the water spraying member can accurately spray seawater on the photovoltaic panel, effectively remove dirt and dust on the surface, and eliminate the steps of manual cleaning. The staff only needs to regularly check whether the device is faulty, which greatly reduces the work intensity of the staff, maintains the cleanliness of the photovoltaic panel, and further improves the photoelectric conversion efficiency of the photovoltaic panel.

[0015] Furthermore, the device realizes effective linkage between the third transmission assembly and the first transmission assembly through the connection block slidably connected in the connection seat, and the cooperation of the sliding rod and the guide rod installed on the connection block. When the buoyancy member is operated by the waves, the operation of the third transmission assembly is transmitted to the connection block through the guide rod, thereby driving the sliding rod to operate in the second transmission assembly, thereby ensuring the accuracy and efficiency of the transmission and making the operation of the entire device more stable and reliable.

[0016] Furthermore, the second transmission component in the device combines the cam, the first gear and the second gear to achieve efficient and precise transmission from the third transmission component to the first transmission component. When the connecting shaft rotates through the action of the third power transmission component, the connecting shaft drives the second gear to rotate through the cooperation of the first gear and the second gear. The second gear and the first gear are meshed with each other, which improves the stability and reliability of the transmission and makes the entire transmission process more compact and efficient. Through the meshing of the gears, the rotation of the first gear can be smoothly transmitted to the second gear, and since the second gear is coaxially connected to the cam, the cam is driven to rotate synchronously. The cam and the sliding rod are linked to each other, thereby realizing the linear motion of the sliding rod, and then the connecting block is driven by the sliding rod to slide in the connecting seat, so that the connecting block drives the guide rod to move back and forth under the cooperation of the elastic member, the cam and the fixed rod, so that the guide rod drives the water spraying member to absorb and spray seawater. The second transmission component simplifies the transmission structure, improves the transmission efficiency, and enhances the stability and durability of the entire offshore photovoltaic panel cleaning device, so that it can maintain excellent cleaning performance and operation reliability under various complex sea conditions.

[0017] Furthermore, the third transmission assembly in the present device realizes accurate and efficient transmission from the floating up and down of the buoyancy member to the operation of the water spraying member through the cooperation of components such as the slide rail, the slide rod, and the rotating shaft; the sliding of the slide rod in the slide rail can respond to the fluctuation of the buoyancy member with the waves, and transmit it to the connecting plate through the connecting arm and the connecting sleeve, and the connecting plate will cause the rotating shaft connected to the connecting plate to rotate, ensuring the stable rotation of the connecting shaft, and converting the mechanical energy received by the buoyancy member into the kinetic energy of the operation of the second transmission assembly and the first transmission assembly, so that the first transmission assembly can drive the water spraying member to absorb and spray seawater; the limit cap and the third transmission assembly can realize the operation of the second transmission assembly and the kinetic energy of the first transmission assembly, so that the first transmission assembly can drive the water spraying member to absorb and spray seawater; the limit cap and the third transmission assembly can realize the operation of the second transmission assembly and ... realize the operation of the second transmission assembly and the first transmission assembly, so that the first transmission assembly can realize the operation of the second transmission assembly and the first transmission assembly, so that the first transmission assembly can realize the operation of the second transmission assembly and the first transmission assembly, so that the first transmission assembly can realize the operation of the second transmission assembly and the first transmission assembly, so that the first The two connecting rods provide a stable limiting and guiding function for the sliding rod, and form a flexible connection with the buoyancy member through the first connecting rod and the ball joint. When the buoyancy member is affected by the waves, the buoyancy member can more smoothly push the second transmission component to operate, thereby enabling the second transmission component to drive the first transmission component to operate stably. Finally, the first transmission component drives the water spraying member to absorb seawater stably, and then sprays the absorbed seawater on the photovoltaic panel, thereby improving the transmission efficiency and stability of the offshore photovoltaic panel cleaning device, enhancing its ability to adapt to complex sea conditions, and ensuring that excellent cleaning effects can be maintained under various conditions.

[0018] Furthermore, a filter is provided on the end of the suction pipe below the sea surface in the device, which can effectively prevent impurities in the seawater from entering the suction pipe, protecting the water spraying part and the entire transmission system from blockage and damage; at the same time, the filter is detachably connected to the suction pipe, which is convenient for replacing and cleaning the filter. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 This is a schematic diagram of the structure of an offshore photovoltaic panel cleaning device proposed by the present invention; Figure 2 This is a front view structural schematic diagram of an offshore photovoltaic panel cleaning device proposed by the present invention; Figure 3 for Figure 1 The enlarged view of point A in the middle; Figure 4 This is one of the structural schematic diagrams of the cleaning part of an offshore photovoltaic panel cleaning device proposed by the present invention; Figure 5 This is a second structural schematic diagram of a cleaning part in an offshore photovoltaic panel cleaning device proposed by the present invention; Figure 6 This is a schematic diagram of the structure of a water spraying component in an offshore photovoltaic panel cleaning device proposed by the present invention; Figure 7 This is a schematic diagram of the connection between the first transmission assembly and the water spraying member in the offshore photovoltaic panel cleaning device proposed by the present invention; Figure 8 This is a schematic structural diagram of a first transmission assembly in an offshore photovoltaic panel cleaning device proposed by the present invention; Fig. 9 This is a schematic structural diagram of a second transmission assembly in an offshore photovoltaic panel cleaning device proposed by the present invention; In the attached figure: 1, photovoltaic panel; 2, fixed pile; 3, fixed sleeve; 4, floating circular plate; 11, filter; 12, water suction pipe; 13, first support rod; 14, first connecting arm; 15, second connecting arm; 16, stiffening rib; 17, mounting plate; 18, water spraying tube; 19, ball joint; 20, first connecting rod; 21, second connecting rod; 22, second support rod; 23, slide rail; 24, rotating shaft; 25, connecting sleeve; 26, first end plate; 27, connecting plate; 28, first gear ; 29. ​​Second gear; 30. Cam; 31. Second end plate; 32. Sliding rod; 33. Mounting shaft; 34. Limit sleeve; 35. Connecting shaft; 37. Fixed ring; 40. Connecting seat; 41. Third connecting rod; 42. Piston; 43. Spray nozzle; 44. First check valve; 45. Nozzle; 46. Fixed rod; 47. Elastic member; 49. Connecting platform; 50. Sliding block; 51. Connecting block; 52. Third connecting arm; 53. Limiting cap; 54. Sliding rod; 55. Limiting end plate; 56. Guide rod. DETAILED DESCRIPTION

[0020] In the following, only some exemplary embodiments are briefly described. As those skilled in the art will appreciate, the described embodiments may be modified in various ways without departing from the spirit or scope of the present invention. Therefore, the drawings and descriptions are considered to be exemplary and non-restrictive in nature.

[0021] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as limiting the present invention.

[0022] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present invention, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined.

[0023] In the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection, an electrical connection, or a communication; it can be a direct connection, or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0024] In the present invention, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may include that the first and second features are in direct contact, or may include that the first and second features are not in direct contact but are in contact through another feature between them. Moreover, a first feature being "above", "above" and "above" a second feature includes that the first feature is directly above and obliquely above the second feature, or simply indicates that the first feature is higher in level than the second feature. A first feature being "below", "below" and "below" a second feature includes that the first feature is directly above and obliquely above the second feature, or simply indicates that the first feature is lower in level than the second feature.

[0025] The embodiments of the present invention are described in detail below with reference to the accompanying drawings.

[0026] The present invention proposes a cleaning device for offshore photovoltaic panels, such as Figure 1 to Figure 9 As shown, the device includes a supporting part, on the top of which a photovoltaic panel 1 is obliquely installed, and a cleaning part is movably installed at a position on the supporting part close to the lowest end of the photovoltaic panel 1. The cleaning part is used to operate reciprocally through the action of waves, absorb seawater, and spray the absorbed seawater on the photovoltaic panel 1, so as to clean the surface of the photovoltaic panel 1, remove dust, sea salt, bird droppings, fallen leaves and other debris accumulated on the photovoltaic panel 1, realize automatic cleaning of the photovoltaic panel 1, reduce maintenance workload and increase the power generation of the photovoltaic device.

[0027] like Figure 1 and Figure 2 As shown, the supporting part is a plurality of fixed piles 2. In this embodiment, four fixed piles 2 are arranged at the bottom of each photovoltaic panel 1. The four fixed piles 2 are vertically installed on the seabed, and the four fixed piles 2 are divided into two groups based on the difference in length. The length of the fixed piles 2 in each group is the same. After the two groups of fixed piles 2 are vertically installed on the seabed, the top ends of the four fixed piles 2 form an inclined mounting surface, and the photovoltaic panel 1 is mounted on the inclined mounting surface. The photovoltaic panel 1 is stably fixed in the coastal area by the four fixed piles 2, wherein a concrete base is cast with concrete at one end of the fixed pile 2 located on the seabed, and the function of the concrete base is to increase the stability of the fixed pile 2 fixed on the seabed.

[0028] In the device, each fixing pile 2 located at the lowest end of the photovoltaic panel 1 is provided with a fixing sleeve 3, a cleaning part is installed on the outer wall of the fixing sleeve 3, and a supporting member is provided between the cleaning part and the fixing sleeve 3, such as Figure 1~Figure 3 .

[0029] like Figure 1 to Figure 9 As shown, the cleaning part includes a mounting plate 17, one end of which is fixedly connected to the fixed sleeve 3, a water spraying member is installed on the mounting plate 17 at a position away from the fixed sleeve 3, a first transmission assembly is connected to the water spraying member at the bottom position of the mounting plate 17, a support member is connected to the first transmission assembly, and the support member is installed on the outer wall of the fixed sleeve 3; one end of a stiffening rib 16 is connected to the bottom end face of the mounting plate 17, and the other end of the stiffening rib 16 is fixed on the outer wall of the fixed sleeve 3, and a triangular reinforcement structure is formed at the connection between the mounting plate 17 and the fixed sleeve 3, thereby increasing the stability of the connection of the mounting plate 17 to the fixed sleeve 3.

[0030] The second transmission assembly and the third transmission assembly are fixedly connected to the support member, and a buoyancy member is installed at the bottom of the third transmission assembly, and the buoyancy member is a floating circular plate 4. The second transmission assembly is linked with the third transmission assembly and the first transmission assembly respectively. The floating circular plate 4 is affected by the waves and floats up and down on the sea surface, and causes the third transmission assembly to reciprocate. Then the third transmission assembly drives the second transmission assembly to operate, and the second transmission assembly further drives the first transmission assembly to reciprocate, so that the water spraying member can absorb seawater and then spray the seawater on the upper surface of the photovoltaic panel 1. Finally, the dust, sea salt, bird droppings, fallen leaves and other debris accumulated on the upper surface of the photovoltaic panel 1 are cleaned by spraying seawater, so that these debris are separated from the photovoltaic panel 1, thereby improving the power generation efficiency of the photovoltaic panel 1.

[0031] like Figure 1 to Figure 6As shown, the water spraying member includes a water spraying barrel 18, which is obliquely installed on the mounting plate 17, and a nozzle 43 is arranged at one end of the water spraying barrel 18 close to the photovoltaic panel 1, and a nozzle 45 is arranged on the top of the nozzle 43, and the nozzle 45 is biased towards the photovoltaic panel 1, so that the seawater sprayed from the water spraying barrel 18 can be sprayed on the photovoltaic panel 1, and a first check valve 44 is arranged in the nozzle 43, and a piston 42 is movably installed in the water spraying barrel 18, and one end of the third connecting rod 41 is connected to the piston 42, and the third connecting rod 41 is installed concentrically with the water spraying barrel 18, and the third connecting rod 41 can make the piston 42 repeatedly move in the water spraying barrel 18 along the axial direction of the water spraying barrel 18, and the other end of the third connecting rod 41 passes through the end of the water spraying barrel 18 away from the nozzle 43, and is connected to the first transmission assembly; the position of the water spraying barrel 18 close to the nozzle 43 is connected to the piston 42, and the piston 42 is connected to the piston 42. The ... A water suction pipe 12 is connected, one end of the water suction pipe 12 is connected to the inside of the water spray barrel 18, and the other end of the water suction pipe 12 extends below the sea surface. A second check valve is arranged in the water suction pipe 12; the water spraying member moves through the first transmission component, so that the piston 42 reciprocates in the water spray barrel 18. When the piston 42 moves in the direction of the first transmission component in the water spray barrel 18, the first check valve 44 is closed, and the second check valve is opened. The water suction pipe 12 sucks seawater into the water spray barrel 18. When the piston 42 moves in the direction of the nozzle 45 in the water spray barrel 18, the second check valve is closed, and the first check valve 44 is opened. The piston 42 quickly squeezes the seawater in the water spray barrel 18, so that the seawater in the water spray barrel 18 converges to the position of the nozzle 43, and then is sprayed on the photovoltaic panel 1 through the nozzle 45. In this way, the upper surface of the photovoltaic panel 1 is cleaned by reciprocating without intervals.

[0032] like Figure 1 to Figure 6 As shown, a filter element 11 is provided on the end of the water suction pipe 12 below the sea surface, and the water suction pipe 12 and the filter element 11 are detachably connected, so that the staff can replace the new filter element 11 at a later time. The filter element 11 is used to filter the seawater sucked into the water suction pipe 12, filter out the debris in the seawater, and prevent the debris from entering the water suction pipe 12, blocking the second check valve, and affecting the cleaning of the photovoltaic panel 1 by the water spraying part; wherein the filter element 11 in this embodiment is one of a multi-media filter, an activated carbon filter, a precision filter and a security filter.

[0033] like Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 , Figure 7 and Figure 8As shown, the first transmission assembly includes a connecting seat 40, which is a rectangular block. An installation cavity is provided in the connecting seat 40, and a connecting block 51 is slidably connected in the installation cavity. A sliding rod 32 and a guide rod 56 are installed on the connecting block 51. Both ends of the sliding rod 32 extend out of the connecting seat 40. The guide rod 56 is arranged along the length direction of the connecting seat 40, and the axis of the guide rod 56 is colinear with the axis of the third connecting rod 41. An end of the guide rod 56 away from the connecting block 51 is connected to an end of the third connecting rod 41 away from the piston 42. The end of the third connecting rod 41 connected to the guide rod 56 extends into the connecting seat 40. The movement of the connecting block 51 will cause the guide rod 56 to move in the installation cavity, thereby driving the third connecting rod 41 to move; the sliding rod 32 and the guide rod 56 are perpendicular to each other, and one end of the sliding rod 32 is linked to the second transmission assembly; Two connecting platforms 49 are provided on the upper end surface of the connecting seat 40 near the third connecting rod 41, and mounting holes are respectively provided on the two connecting platforms 49, and a fixing rod 46 is installed in the mounting hole. The fixing rod 46 and the sliding rod 32 are parallel to each other, and an elastic member 47 is connected between the fixing rod 46 and the sliding rod 32. At least one elastic member 47 is provided on one side of the connecting seat 40. In this embodiment, the elastic member 47 adopts an elastic rope. In addition, the elastic member 47 can also adopt a structure with a restoring deformation such as a spring; the connecting seat 40 is symmetrically provided with sliding grooves on the two side end surfaces of the connecting block 51, and the sliding grooves are opened along the length direction of the connecting seat 40, and the sliding grooves are connected to the mounting cavity. A slider 50 is slidably installed in the sliding groove, and the slider 50 is fixedly connected to the connecting block 51. The slider 50 enables the connecting block 51 to stably slide along the length direction of the connecting seat 40 in the mounting cavity to prevent the connecting block 51 from occurring in the mounting cavity Rotate to ensure the stability of the operation of the first transmission component. The two ends of the sliding rod 32 pass through the slider 50, and the sliding rod 32 is pushed to slide in the installation cavity through the second transmission component. The sliding rod 32 then drives the connecting block 51 to translate, and at the same time stretches the elastic member 47 to accumulate elastic potential energy. The connecting block 51 pulls the third connecting rod 41 to move through the guide rod 56, so that the piston 42 moves to absorb seawater. When the sliding rod 32 moves to a certain position, the second transmission component cancels the push on the sliding rod 32. The sliding rod 32 has an operating tendency to return to the initial position through the elastic potential energy generated by the elastic member 47. During this operation, the sliding rod 32 drives the connecting block 51 to move, and the connecting block 51 pushes the guide rod 56 to move, thereby pushing the third connecting rod 41, so that the third connecting rod 41 pushes the piston 42, and the seawater sucked into the water spray barrel 18 is sprayed on the photovoltaic panel 1 through the nozzle 45. like Figure 1~Figure 5As shown, the support member includes a first connecting arm 14, a second connecting arm 15 and a first supporting rod 13; one end of the first connecting arm 14, the first supporting rod 13 and the second connecting arm 15 are all fixed on the fixed sleeve 3, and the second connecting arm 15 is located above the first connecting arm 14, the first supporting rod 13 is located below the first connecting arm 14, and the other end of the second connecting arm 15 is fixed on the connecting seat 40, and the connecting seat 40 is stably fixed at the lower position of the mounting plate 17, and the second transmission assembly is installed on the second connecting arm 15 near the connecting seat 40; the other end of the first connecting arm 14 is provided with a fixing ring 37, and the fixing ring 37 is The fixing ring 37 is a circular ring structure, and the axis of the fixing ring 37 is parallel to the axis of the fixing sleeve 3. The fixing ring 37 is rotatably connected with the connecting shaft 35. A limiting ring stage is provided on the outer wall of the connecting shaft 35. A limiting ring groove is circumferentially provided on the inner wall of the fixing ring 37. The limiting ring stage is rotatably installed in the limiting ring groove. Through the cooperation between the limiting ring groove and the limiting ring stage, the connecting shaft 35 can rotate stably in the fixing ring 37, and will not move along the axial direction of the fixing ring 37 during the rotation process. The second transmission assembly is connected to the upper end of the connecting shaft 35, and the third transmission assembly is connected to the lower end of the connecting shaft 35; the other end of the first support rod 13 is fixedly connected to the third transmission assembly.

[0034] like Figure 1 to Figure 7 As shown, the second transmission assembly includes a cam 30, a first gear 28 and a second gear 29, and the outer wall of the cam 30 is in contact with the outer wall of the sliding rod 32; the cam 30 is rotatably mounted on the second connecting arm 15 through a mounting shaft 33, and the axes of the mounting shaft 33 and the sliding rod 32 are parallel to each other, the cam 30 and the second gear 29 are coaxially connected through the mounting shaft 33, so that the cam 30 and the second gear 29 rotate synchronously, and a limiting sleeve 34 is provided on the end of the mounting shaft 33 away from the second connecting arm 15, and the limiting sleeve 34 prevents the cam 30 from being separated from the mounting shaft 33, thereby ensuring the stability of the operation of the second transmission assembly; the first gear 28 is mounted on the top of the connecting shaft 35, and the first gear 28 and the second gear 29 are meshed with each other. When the third transmission assembly rotates the connecting shaft 35, the meshing of the first gear 28 and the second gear 29 causes the cam 30 to rotate, and then the sliding rod 32 is pushed to move by the cam 30. In this embodiment, the second gear 29 and the first gear 28 are both bevel gears.

[0035] like Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 , Figure 7 and Fig. 9As shown, the third transmission assembly includes a slide rail 23 and a rotating shaft 24; the slide rail 23 is a curved slide rail, one end of the slide rail 23 is fixed on the outer wall of the fixing ring 37, the connection point between the slide rail 23 and the outer wall of the fixing ring 37 is projected on the bottom end surface of the mounting plate 17 to obtain a first projection point, and the connection point between the first connecting arm 14 and the outer wall of the fixing ring 37 is projected on the bottom end surface of the mounting plate 17 to obtain a second projection point, and the fixing ring 37 is projected on the bottom end surface of the mounting plate 17 to obtain a projection ring, the first projection point and the second projection point are symmetrical about the center line of the projection ring, and the other end of the slide rail 23 is provided with a first end plate 26, and the first end plate 26 is connected to an end of the first support rod 13 away from the fixing sleeve 3, and the end of the slide rail 23 away from the fixing ring 37 is fixed by the first support rod 13 to prevent the slide rail 23 from shaking greatly during use, thereby ensuring the stable operation of the third transmission assembly; the slide rail The third connecting arm 52 is provided with a connecting sleeve 25, and the connecting sleeve 25 is rotatably mounted on the outer side of the rotating shaft 24. The second end plate 31 is provided on the bottom end of the rotating shaft 24. The second end plate 31 is used to limit the sliding distance of the connecting sleeve 25 in the axial direction of the rotating shaft 24 to prevent the connecting sleeve 25 from separating from the rotating shaft 24. The length extension line of the third connecting arm 52 is perpendicular to the axis of the rotating shaft 24. A connecting plate 27 is obliquely installed on the rotating shaft 24, and the connecting plate 27 is horizontally fixed on the bottom end of the connecting shaft 35.

[0036] One end of the second connecting rod 21 is fixedly connected to the end of the limiting cap 53 away from the sliding rod 54, and the length extension line of the second connecting rod 21 is always perpendicular to the axis of the sliding rod 54. The other end of the second connecting rod 21 is vertically connected to the first connecting rod 20, and the first connecting rod 20 is parallel to the fixed pile 2. The outer wall of the first connecting rod 20 and the outer wall of the second connecting rod 21 are connected to a second support rod 22, and the stability of the connection between the first connecting rod 20 and the second connecting rod 21 is increased by the second support rod 22; the bottom end of the first connecting rod 20 is connected to the floating circular plate 4 through a ball joint 19. The floating circular plate 4 will float up and down under the action of the waves. During this process, the floating circular plate 4 will push the first connecting rod 20 to move vertically repeatedly. The first connecting rod 20 drives the second connecting rod 21 to move repeatedly along the slide rail 23. At the same time, the second connecting rod 21 drives the slide rod 54 to move along the slide rail 23. The slide rod 54 cooperates with the rotating shaft 24 through the connecting sleeve 25, so that the connecting shaft 35 rotates, thereby operating the first transmission component, and then driving the water spraying part to absorb and spray seawater, thereby cleaning the photovoltaic panel 1, eliminating the process of manual cleaning, and the device can continue to work under the action of waves, ensuring the cleanliness of the photovoltaic panel 1 and improving the power generation efficiency of the photovoltaic panel 1.

[0037] The floating circular plate 4 in the present invention is a lightweight floating plate in the shape of a disk with a hollow or porous interior, wherein a ball joint 19 is connected at the center position of the top end surface of the floating circular plate 4, and the ball joint 19 includes a ball head seat, which is installed at the center position of the top end surface of the floating circular plate 4, and a connecting hole is arranged on the top end surface of the ball head seat, and a ball groove is arranged at the bottom of the connecting hole in the floating circular plate 4, and a ball head is installed in the ball groove, and a ball connecting rod is connected to the ball head, and one end of the ball connecting rod passes through the connecting hole and is connected to the bottom end of the first connecting rod 20, and the diameter of the connecting hole is larger than the diameter of the ball connecting rod and smaller than the diameter of the maximum diameter in the horizontal section of the ball groove, so that the ball connecting rod can freely rotate at a certain angle at multiple angles under the cooperation of the ball groove, the connecting hole and the ball head seat, so that the floating circular plate 4 can move at a small angle at the bottom end of the first connecting rod 20.

[0038] The present invention proposes a method for cleaning an offshore photovoltaic panel, which is applied to the above-mentioned offshore photovoltaic panel cleaning device, and comprises the following steps: The buoyancy member is acted upon by the waves, causing the third transmission assembly to reciprocate, which in turn drives the second transmission assembly to operate, and the second transmission assembly further causes the first operating assembly to operate; The first operating component drives the water spraying component to absorb seawater and spray the absorbed seawater onto the photovoltaic panel 1 .

[0039] Specifically, under the action of the waves, the floating circular plate 4 pushes the first connecting rod 20 to move vertically back and forth, and the first connecting rod 20 drives the second connecting rod 21 to move repeatedly along the slide rail 23. At the same time, the second connecting rod 21 drives the sliding rod 54 to move along the slide rail 23. The sliding rod 54 cooperates with the connecting sleeve 25, the rotating shaft 24 and the connecting plate 27 to make the connecting shaft 35 rotate unidirectionally in the fixing ring 37, thereby making the first gear 28 rotate, and the first gear 28 meshes with the second gear 29 to make the second gear 29 rotate, and then the second gear 29 drives the cam 30 to rotate, and the rotation of the cam 30 will push the sliding rod 32 to move, and the sliding rod 32 drives the connecting block 51 to slide in the installation cavity. At the same time, the sliding rod 32 will stretch the elastic member 47, and the connecting block 51 drives the third connecting rod 41 to move through the guide rod 56, thereby making the piston 42 move. In this process, the piston 42 moves toward the first transmission group in the water spray barrel 18. When the cam 30 moves in the direction of the first check valve 44, the first check valve 44 is closed and the second check valve is opened. At this time, the water spray barrel 18 sucks seawater into the water spray barrel 18 through the suction pipe 12. Then, after the cam 30 rotates a certain angle, the push on the sliding rod 32 is cancelled. At this time, the sliding rod 32 has accumulated elastic potential energy through the elastic member 47, which makes the sliding rod 32 have an operating tendency to return to the initial position. The sliding rod 32 drives the connecting block 51 to move, and the connecting block 51 pushes the guide rod 56 to move. The guide rod 56 pushes the third connecting rod 41, so that the third connecting rod 41 pushes the piston 42 to move rapidly in the water spray barrel 18 toward the mounting plate 17. At this time, the first check valve 44 is opened and the second check valve is closed. The seawater in the water spray barrel 18 is squeezed by the piston 42, so that the seawater in the water spray barrel 18 is gathered to the position of the nozzle 43, and then sprayed on the photovoltaic panel 1 through the nozzle 45. In this way, the upper surface of the photovoltaic panel 1 is cleaned by reciprocating without gaps.

[0040] The above shows and describes the basic principles and main features of the present invention and the advantages of the present invention. It is obvious to those skilled in the art that the present invention is not limited to the details of the above exemplary embodiments, and the present invention can be implemented in other specific forms without departing from the spirit or basic features of the present invention. Therefore, no matter from which point of view, the embodiments should be regarded as exemplary and non-restrictive. The scope of the present invention is defined by the attached claims rather than the above description, and it is intended that all changes falling within the meaning and scope of the equivalent elements of the claims are included in the present invention. Any figure mark in the claims should not be regarded as limiting the claims involved.

[0041] In addition, it should be understood that although this specification is described in accordance with the implementation modes, not every implementation mode contains only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment can also be appropriately combined to form other implementation modes that can be understood by those skilled in the art. The above content is only to illustrate the technical idea of ​​the present invention, and cannot be used to limit the protection scope of the present invention. Any changes made on the basis of the technical solution according to the technical idea proposed by the present invention shall fall within the protection scope of the claims of the present invention.

Claims

1. An offshore photovoltaic panel cleaning device, characterized in that: It comprises a support portion, a photovoltaic panel (1) is obliquely mounted on the top of the support portion, a cleaning portion is connected to the support portion, and a buoyancy member floating on the sea surface is connected to the bottom of the cleaning portion, and the sea waves cause the buoyancy member to float up and down, so that the cleaning portion absorbs seawater and sprays the absorbed seawater onto the photovoltaic panel (1), thereby cleaning the photovoltaic panel (1); The cleaning portion comprises a mounting plate (17), one end of the mounting plate (17) being connected to the supporting portion, a water spraying member being arranged on the mounting plate (17), a first transmission assembly being connected to the bottom of the mounting plate (17), the first transmission assembly being connected to a supporting member, and the supporting member being mounted on the supporting portion; The support member is connected to a second transmission assembly and a third transmission assembly, the buoyancy member is installed at the bottom of the third transmission assembly, and the second transmission assembly is linked with the third transmission assembly and the first transmission assembly respectively, so that the third transmission assembly is operated by the action of waves on the buoyancy member, driving the second transmission assembly to operate, so that the first transmission assembly is operated, and the first transmission assembly is operated so that the water spraying member first absorbs seawater and then sprays the absorbed seawater onto the photovoltaic panel (1).

2. The offshore photovoltaic panel cleaning device according to claim 1, characterized in that: The water spraying member comprises a water spraying barrel (18), the water spraying barrel (18) being mounted on the mounting plate (17), a spraying head (43) being disposed at one end of the water spraying barrel (18), and a first check valve (44) being disposed inside the spraying head (43); A piston (42) is movably installed in the water spray barrel (18), and a third connecting rod (41) is connected to the piston (42). One end of the third connecting rod (41) passes through an end of the water spray barrel (18) away from the spray head (43) and is connected to the first transmission assembly; A water suction pipe (12) is connected to the water spray barrel (18) at a position close to the spray head (43); one end of the water suction pipe (12) is in communication with the interior of the water spray barrel (18); and the other end of the water suction pipe (12) extends below the sea surface.

3. The offshore photovoltaic panel cleaning device according to claim 2, characterized in that: The first transmission assembly comprises a connecting seat (40), a connecting block (51) is slidably connected inside the connecting seat (40), a sliding rod (32) and a guide rod (56) are mounted on the connecting block (51), the guide rod (56) is fixedly connected to an end of the third connecting rod (41) away from the piston (42), and the sliding rod (32) is linked to the second transmission assembly; A connecting platform (49) is provided on the connecting seat (40) at a position close to the third connecting rod (41), a fixing rod (46) is mounted on the connecting platform (49), and an elastic member (47) is connected between the fixing rod (46) and the sliding rod (32).

4. The offshore photovoltaic panel cleaning device according to claim 3, characterized in that: The support member comprises a first connecting arm (14), a second connecting arm (15) and a first supporting rod (13); One end of the first connecting arm (14), the first supporting rod (13) and the second connecting arm (15) are all fixed to the supporting portion, the other end of the second connecting arm (15) is fixedly connected to the connecting seat (40), and the second transmission assembly is mounted on the second connecting arm (15); The other end of the first connecting arm (14) is provided with a fixing ring (37), a connecting shaft (35) is rotatably connected inside the fixing ring (37), one end of the connecting shaft (35) is connected to the second transmission assembly, and the other end of the connecting shaft (35) is connected to the third transmission assembly; The other end of the first support rod (13) is fixedly connected to the third transmission assembly.

5. The offshore photovoltaic panel cleaning device according to claim 4, characterized in that: The second transmission assembly comprises a cam (30), a first gear (28) and a second gear (29), and the cam (30) is linked to the sliding rod (32); The cam (30) is rotatably mounted on the second connecting arm (15), and the cam (30) is coaxially connected to the second gear (29), so that the cam (30) and the second gear (29) rotate synchronously; The first gear (28) is mounted on the top end of the connecting shaft (35), and the second gear (29) is meshed with the first gear (28).

6. The offshore photovoltaic panel cleaning device according to claim 4, characterized in that: The third transmission assembly comprises a slide rail (23) and a rotating shaft (24); One end of the slide rail (23) is connected to the fixed ring (37), a slide rod (54) is slidably connected inside the slide rail (23), one end of the slide rod (54) is connected to a limiting end plate (55), one end of the limiting end plate (55) is connected to a third connecting arm (52), a connecting sleeve (25) is provided on the third connecting arm (52), the connecting sleeve (25) is rotatably mounted on the rotating shaft (24), a connecting plate (27) is obliquely mounted on the rotating shaft (24), and the connecting plate (27) is fixed to the bottom end of the connecting shaft (35); The other end of the slide rod (54) is fitted with a limit cap (53) on the outer wall of the slide rail (23), and the limit cap (53) is connected to a second connecting rod (21). The axis of the second connecting rod (21) is perpendicular to the axis of the slide rod (54), and the second connecting rod (21) is vertically connected to a first connecting rod (20). The bottom end of the first connecting rod (20) is connected to the buoyancy member via a ball joint (19).

7. The offshore photovoltaic panel cleaning device according to claim 2, characterized in that: A filter element (11) is provided at the end of the water suction pipe (12) located below the sea surface, and a second check valve is provided in the water suction pipe (12).

8. The offshore photovoltaic panel cleaning device according to claim 7, characterized in that: The filter element (11) is one of a multi-media filter, an activated carbon filter, a precision filter and a security filter.

9. The offshore photovoltaic panel cleaning device according to claim 1, characterized in that: The support portion comprises a plurality of fixing piles (2), wherein the plurality of fixing piles (2) are vertically installed on the seabed, the tops of the plurality of fixing piles (1) form an inclined installation surface, the photovoltaic panel (1) is installed on the inclined installation surface, and the fixing pile (2) located at the lowest end of the photovoltaic panel (1) is connected to a fixing sleeve (3), and the fixing sleeve (3) is connected to the mounting plate (17) and the support member.

10. A method for cleaning an offshore photovoltaic panel, applied to an offshore photovoltaic panel cleaning device according to any one of claims 1 to 9, characterized in that: The following steps are involved: The buoyancy member is acted upon by the waves, so that the third transmission assembly reciprocates, and the third transmission assembly drives the second transmission assembly to operate, and the first transmission assembly reciprocates through the second transmission assembly; The first transmission assembly drives the water spraying component to absorb seawater, and sprays the absorbed seawater onto the photovoltaic panel (1).

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