Photovoltaic cleaning equipment cover plate structure and photovoltaic cleaning equipment applying same

Abstract

The utility model provides a photovoltaic cleaning equipment cover plate structure and photovoltaic cleaning equipment using the same. The photovoltaic cleaning equipment cover plate structure comprises a cover plate body. The shaft sleeve is arranged at the connecting end of the cover plate main body; the reinforcing ribs are arranged on the cover plate main body; the cover plate body, the shaft sleeve and the reinforcing ribs are integrally formed. According to the photovoltaic cleaning equipment cover plate structure and the photovoltaic cleaning equipment applying the same, the shaft sleeve and the reinforcing rib are integrally formed at the two ends of the cover plate body respectively, the strength of the joint of the cover plate body and the connecting shaft is improved, and meanwhile the two ends of the shaft sleeve and the cover plate turnover device are connected through the pair of short shafts respectively; the risk that the connecting and matching part of the cover plate main body and the connecting shaft and the connecting shaft are easy to break and fall into the liquid medicine tank under the dual effects of crystallization corrosion of volatile gas in the liquid medicine tank and long-term stress, so that the broken shaft body or the cover plate crushes the texturing flower basket or the purity of the liquid medicine is damaged is reduced, and the service life of the cover plate main body and the connecting shaft is prolonged; and the production efficiency of photovoltaic cleaning and texturing is ensured.

Description

Technical Field

[0001] The utility model relates to the technical field of photovoltaic cleaning equipment, and particularly relates to a cover plate structure of a photovoltaic cleaning equipment and a photovoltaic cleaning equipment applying the same. Background Art

[0002] With the continuous increase in the global demand for renewable energy, the solar photovoltaic industry has developed rapidly. In the cleaning and texturing process of solar cells (silicon wafers), the cells need to pass through various photovoltaic cleaning equipment (such as trough texturing equipment) so that the cells react with the liquid medicine in the liquid medicine tank of the equipment to achieve the cleaning effect. The existing cover plates of photovoltaic cleaning equipment are provided with shaft connection structures on both sides. A whole long connecting shaft is passed through a pair of shaft connection structures on both sides of a pair of cover plates, and the two ends of the long connecting shaft are docked with the cover plate flipping device of the photovoltaic cleaning equipment to realize the up-and-down flipping of the cover plate relative to the photovoltaic cleaning equipment, so as to open and close the top opening of the photovoltaic cleaning equipment.

[0003] However, the liquid medicine tank contains a large amount of alkaline or acidic gases. Most of the shaft connection structure of the cover plate and the length direction of the long connecting shaft are directly exposed to the air in the tank without protection, and are easily directly contacted by the alkaline or acidic gases volatilized from the liquid medicine tank, forming crystal accumulation on the metal shaft bodies of the cover plate and the long connecting shaft. Under the dual action of the stress of long-term flipping use of the cover plate and the long-term accumulation and corrosion of crystals, the shaft connection structure of the cover plate and the connection and cooperation part between the shaft body of the long connecting shaft and the shaft connection structure are prone to stress fracture and fall into the liquid medicine tank, resulting in the broken cover plate or shaft body crushing the texturing flower basket or damaging the purity of the liquid medicine and requiring replacement of the connecting shaft, which affects the production efficiency and cost; in addition, the cover plate is only stressed through a pair of shaft connection structures on both sides, and the long hinge shaft is also only connected and stressed with a pair of cover plate flipping devices at both ends, resulting in uneven stress at most positions between both sides of the cover plate and both ends of the long hinge shaft, further causing the cover plate and the long hinge shaft to be prone to fatigue fracture due to long-term stress. Summary of the Utility Model

[0004] The utility model provides a cover plate structure of a photovoltaic cleaning equipment and a photovoltaic cleaning equipment applying the same, so as to solve the technical problem that the shaft connections on both sides of the cover plate of the photovoltaic cleaning equipment and the long hinge shaft are prone to fracture due to stress and crystal corrosion in the prior art.

[0005] To solve the above problems, the technical solution adopted by the utility model is:

[0006] The utility model provides a cover plate structure of a photovoltaic cleaning equipment, including:

[0007] A cover plate main body;

[0008] A shaft sleeve, which is arranged at the connection end of the cover plate main body;

[0009] Reinforcing ribs are provided on the cover plate body;

[0010] The cover plate body, the bushing, and the reinforcing ribs are integrally formed.

[0011] Preferably, the reinforcing ribs are integrally connected to the free ends of the cover plate body opposite to the connection ends and are located on the same side or the opposite side of the cover plate body where the bushing is provided.

[0012] Preferably, the cross-section of the reinforcing rib is in a U-shape and is formed by bending the cover plate body.

[0013] Furthermore, the cover plate structure of the photovoltaic cleaning equipment further includes:

[0014] A cover plate flipping device, including a pair of cover plate flipping mechanisms provided on the photovoltaic cleaning equipment and located on both sides of the connection end respectively;

[0015] A pair of connecting shafts respectively connect the ends of a pair of cover plate flipping mechanisms and their adjacent bushings, and the cover plate flipping mechanisms and the bushings completely cover the connecting shafts.

[0016] Furthermore, one end of the connecting shaft penetrates into the inner part of the end of the bushing, and the opposite end of the connecting shaft extends out of the bushing;

[0017] The cover plate structure of the photovoltaic cleaning equipment further includes:

[0018] A pair of connecting arms respectively connect a pair of cover plate flipping mechanisms and the opposite ends of their adjacent connecting shafts extending out of the bushings.

[0019] Preferably, one end of the connecting arm is connected to the cover plate flipping mechanism, and the opposite end of the connecting arm is provided with a shaft mounting hole matching the connecting shaft;

[0020] The connecting shaft and the connecting arm are connected by inserting and mating one end of the connecting shaft extending out of the bushing with the shaft mounting hole.

[0021] Furthermore, the cover plate flipping device further includes:

[0022] A flipping motor, the driving shaft of which is used to drive a pair of cover plate flipping mechanisms to move synchronously so that a pair of connecting arms swing synchronously, thereby driving the cover plate body to flip up and down with the pair of connecting arms.

[0023] Furthermore, the cover plate structure of the photovoltaic cleaning equipment further includes:

[0024] At least two screw perforations are respectively provided at the opposite ends of the bushing;

[0025] The part of the connecting shaft penetrating into the inner part of the bushing is provided with at least one screw mounting hole matching the screw perforation;

[0026] The connecting shaft and the bushing are firmly connected by passing fasteners through the corresponding screw perforations and screw mounting holes.

[0027] Preferably, the cover plate body is rectangular, and the bushing is a sleeve integrally connected to one side of the connecting end of the cover plate body. The sleeve extends parallel to the length direction of the cover plate body, and both ends of the sleeve are flush with both ends of the cover plate body in its length direction.

[0028] There are two groups of screw perforations. Each group of screw perforations includes at least two screw perforations, which are respectively arranged at opposite ends of the sleeve. At least two screw mounting holes matching the screw perforations are provided on the part of the connecting shaft passing through the inside of the sleeve.

[0029] Furthermore, the cover plate structure of the photovoltaic cleaning device further includes:

[0030] Reinforcing ribs, integrally connected to the free ends of the cover plate body opposite to the connecting ends, and located on the same side or the opposite side of the cover plate body where the sleeve is provided.

[0031] Preferably, the cross-section of the reinforcing rib is in a shape of "ji", and is formed by bending the cover plate body.

[0032] The present invention also provides a photovoltaic cleaning device, which includes a main tank body, and also includes the above-mentioned cover plate structure of the photovoltaic cleaning device. The cover plate flipping device is installed on the main tank body and is used to drive the cover plate body to flip up and down relative to the main tank body, so as to open and close the top opening of the main tank body by the cover plate body.

[0033] Preferably, there are a pair of cover plate structures of the photovoltaic cleaning device. The cover plate flipping devices of the pair of cover plate structures of the photovoltaic cleaning device are respectively arranged at both ends of the top opening, and are respectively used to drive the corresponding cover plate bodies of the pair of cover plate structures of the photovoltaic cleaning device to flip up and down relative to the main tank body in an opposite or reverse direction, so as to open and close the top opening simultaneously by the pair of cover plate bodies.

[0034] Compared with the prior art, the present invention has the following beneficial effects:

[0035] For the cover plate structure of the photovoltaic cleaning device provided by the present invention, a sleeve is arranged at the connecting end of the cover plate body. The sleeve extends integrally along the length direction to be flush with both ends of the cover plate body in the length direction, so that the sleeve is used as a whole to be connected to a pair of relatively short connecting shafts (short shafts) at both ends in the length direction respectively. Reinforcing ribs are arranged at the free ends of the cover plate body opposite to the connecting ends, and the sleeve, the reinforcing ribs and the cover plate body are integrally formed to enhance the structural strength of the cover plate body; the above structural layout improves the fatigue resistance of the connection between the cover plate body and the connecting shaft under the dual actions of the crystallization corrosion of the volatile gas in the photovoltaic cleaning device and the long-term stress, and reduces the risk of fracture of the cover plate body, especially at the connection with the connecting shaft.

[0036] Meanwhile, the cover plate structure of the photovoltaic cleaning equipment provided by the present utility model splits a traditional whole long connecting shaft into a pair of shorter connecting shafts. The pair of connecting shafts are respectively inserted into the inner parts at both ends of the shaft sleeve, so that the connecting shafts extend into the shaft sleeve corresponding to most of the lengths with higher corrosive gas concentration inside the photovoltaic cleaning equipment, reducing the contact between the metal shaft bodies of this part and the corrosive gas inside the photovoltaic cleaning equipment, thereby reducing the risk of the connecting shafts breaking due to surface crystallization corrosion; and one end of the connecting shaft extending out of the shaft sleeve corresponds to a part of the length with lower corrosive gas concentration and is connected to the cover plate flipping device of the photovoltaic cleaning equipment. Similarly, it can also provide a certain degree of isolation protection for the metal shaft body of this part against the corrosive gas, thereby reducing the risk of the end of the connecting shaft extending out of the shaft sleeve breaking due to surface corrosion. The above setting of the shaft sleeve plus the use of short shafts for the connecting shafts ensures the overall force when the connecting shafts are connected to the shaft sleeve and the cover plate flipping device, further reducing the risk of the connecting shafts breaking under the dual action of volatile gas crystallization corrosion and long-term stress.

[0037] In summary, the cover plate structure of the photovoltaic cleaning equipment provided by the present utility model and the photovoltaic cleaning equipment using the same reduce the risk that the connection and cooperation part between the connecting shaft and the cover plate and the cover plate shaft connection structure are prone to break under the dual action of crystallization corrosion and long-term stress and fall into the liquid medicine tank, resulting in the broken shaft body or the cover plate crushing the texturing flower basket or damaging the purity of the liquid medicine, improving the service life of the cover plate main body and the connecting shaft, and ensuring the production efficiency of photovoltaic cleaning and texturing. BRIEF DESCRIPTION OF THE DRAWINGS

[0038] In order to more clearly illustrate the technical solutions proposed by the present utility model, the present utility model will be described in detail below with reference to the embodiments and the drawings. It should be understood that the embodiments and the drawings in the following specific embodiments and the description of the drawings are only some embodiments of the present utility model, and those skilled in the art can make changes to these drawings under the concept of the present utility model.

[0039] Figure 1 FIG. 1 is a front view structural schematic diagram of the first embodiment of the cover plate structure of the photovoltaic cleaning equipment provided by the present utility model without fasteners;

[0040] Figure 2 FIG. 2 Figure 1 is a partial enlarged structural schematic diagram of area A of the cover plate structure of the photovoltaic cleaning equipment in FIG. 1;

[0041] Figure 3 FIG. 3 Figure 1 is a side view structural schematic diagram of the cover plate structure of the photovoltaic cleaning equipment in FIG. 1;

[0042] Figure 4 FIG. 4 Figure 3 is a partial enlarged structural schematic diagram of area B of the cover plate structure of the photovoltaic cleaning equipment in FIG. 3;

[0043] Figure 5The front view structural schematic diagram of the fastener of the cover plate structure of the photovoltaic cleaning equipment provided by the present utility model;

[0044] Figure 6 The side view structural schematic diagram of the fastener in 5;

[0045] Figure 7 For Figure 1 The front view of the assembly structure of the bushing and the fastener of the cover plate structure of the photovoltaic cleaning equipment in;

[0046] Figure 8 For Figure 7 The partial enlarged structural schematic diagram of the C area of the cover plate structure of the photovoltaic cleaning equipment in;

[0047] Figure 9 For Figure 7 The side view of the assembly structure of the cover plate structure of the photovoltaic cleaning equipment in;

[0048] Figure 10 For Figure 9 The partial enlarged structural schematic diagram of the D area of the cover plate structure of the photovoltaic cleaning equipment in;

[0049] Figure 11 The side view structural schematic diagram of the second embodiment of the cover plate structure of the photovoltaic cleaning equipment provided by the present utility model without the fastener;

[0050] Figure 12 For Figure 11 The partial enlarged structural schematic diagram of the E area of the cover plate structure of the photovoltaic cleaning equipment in;

[0051] Figure 13 For Figure 11 The side view of the assembly structure of the bushing and the fastener of the cover plate structure of the photovoltaic cleaning equipment in;

[0052] Figure 14 For Figure 13 The partial enlarged structural schematic diagram of the F area of the cover plate structure of the photovoltaic cleaning equipment in;

[0053] Figure 15 The side view structural schematic diagram of the third embodiment of the cover plate structure of the photovoltaic cleaning equipment provided by the present utility model without the fastener;

[0054] Figure 16 The side view structural schematic diagram of the fourth embodiment of the cover plate structure of the photovoltaic cleaning equipment provided by the present utility model without the fastener;

[0055] Figure 17 The front view structural schematic diagram of the photovoltaic cleaning equipment provided by the present utility model.

[0056] Among them, the main marks of each drawing in the figure are as follows:

[0057] 1. Cover plate body; 11. Connection end; 12. Free end; 13. Screw clearance hole; 2. Bush; 21. Screw through hole; 22. Bottom wall; 23. Side wall; 24. Top wall; 3. Connecting shaft; 31. Screw mounting hole; 32. Convex column; 321. Screw through hole; 4. Reinforcing rib; 41. Bottom rib; 42. Side rib; 43. Top rib; 5. Photovoltaic cleaning equipment; 51. Main tank body; 511. Top opening; 6. Cover plate flipping device; 61. Cover plate flipping mechanism; 7. Connecting arm; 71. Shaft mounting hole.

[0058] Among them, other markings in the figure are as follows:

[0059] G. Flipping direction. Specific implementation manners

[0060] In order to make the technical problems, technical solutions and beneficial effects to be solved by the present utility model clearer, the following further elaborates on the present utility model in conjunction with the attached Figure 1-17 drawings and embodiments.

[0061] Please refer to Figure 1-10 , 17 together. The cover plate structure of the photovoltaic cleaning equipment provided by the present utility model includes:

[0062] Cover plate body 1; Bush 2, provided on one side of the connection end 11 of the cover plate body 1; Cover plate flipping device 6, including a pair of cover plate flipping mechanisms 61 provided on the photovoltaic cleaning equipment and located on both sides of the connection end 11 respectively; A pair of connecting shafts 3, respectively connecting the ends of a pair of cover plate flipping mechanisms 61 and their adjacent bushes 2, and the cover plate flipping mechanism 61 and the bush 2 completely cover the connecting shaft 3.

[0063] Please refer to Figure 1-10 , 17 together. In the first embodiment of the cover plate structure of the photovoltaic cleaning equipment provided by the present utility model:

[0064] One end of the connecting shaft penetrates into the inner part of the end (corresponding to the axial end) of the bush 2, and the opposite end of the connecting shaft 3 extends out of the bush 2. The end of the connecting shaft 3 extending out of the bush 2 is used to connect with the cover plate flipping device 6 of the photovoltaic cleaning equipment 5, so as to realize the function that the cover plate body 1 of the cover plate structure of the photovoltaic cleaning equipment can be turned up and down to open and close the photovoltaic cleaning equipment 5.

[0065] Please refer to Figure 1 , 3 , 7, 9 together. In the first embodiment, the cover plate structure of the photovoltaic cleaning equipment further includes:

[0066] Reinforcing rib 4, integrally connected to the free end 12 of the cover plate body 1 opposite to the connection end 11, and located on the same side or the opposite side (i.e., the opposite side) of the cover plate body 1 where the bush 2 is provided.

[0067] Please refer to Figure 1 、 3 、7, and 9 together. In the first embodiment, the reinforcing rib 4 is integrally connected to the free end 12 of the cover plate body 1 opposite to the connection end 11 and is located on the same side of the cover plate body 1 where the bushing 2 is provided. That is, the reinforcing rib 4 and the bushing 2 are respectively provided at both ends (the free end 12 and the connection end 11) of the same side of the rectangular plate-shaped cover plate body 1, and both the reinforcing rib 4 and the bushing 2 extend parallel to the length direction of the rectangular plate-shaped cover plate body 1.

[0068] Please refer to Figure 1 、 3 、7, and 9 together. As a preferred implementation of the first embodiment, the reinforcing rib 4 is a square tube-shaped rib integrally connected to the same side of the free end 12 of the cover plate body 1 where the bushing 2 is provided. The square tube-shaped rib (the reinforcing rib 4) extends parallel to the length direction of the cover plate body 1, and the axial two ends of the square tube-shaped rib (the reinforcing rib 4) are flush with the two ends of the cover plate body 1 in its length direction. That is, the length of the sleeve (the bushing 2) extending parallel to the length direction of the cover plate body 1 is equal to the length of the cover plate body 1; or the length of the square tube-shaped rib (the reinforcing rib 4) is slightly shorter than that of the cover plate body 1, so that the overall structural strength of the cover plate body 1 is improved by the sufficiently long reinforcing rib 4.

[0069] Please refer to Figure 1 、 3 、7, and 9 together. As a more preferred implementation of the first embodiment, the square tube-shaped rib (the reinforcing rib 4), the cover plate body 1, and the bushing 2 are integrally formed by injection molding. And the bottom rib 41 of the square tube-shaped rib (the reinforcing rib 4) is integrally connected to one side of the rectangular plate-shaped cover plate body 1. The top rib 43 of the square tube-shaped rib (the reinforcing rib 4) away from its bottom rib 41 (i.e., away from the cover plate body 1) is integrally connected to both side ends of the bottom rib 41 through a pair of side ribs 42, so as to enhance the strength of the overall structure formed after the integral injection molding of the reinforcing rib 4, the cover plate body 1, and the bushing 2.

[0070] In other implementations of the first embodiment (not shown in the figure), the reinforcing rib 4 can also be an open rib with a U-shaped or C-shaped cross-section. The open side of the reinforcing rib 4 is integrally formed and connected to one side of the rectangular plate-shaped cover plate body 1 by injection molding, so that the reinforcing rib 4 and the cover plate body 1 integrally enclose a semi-closed space with both axial ends open.

[0071] Please refer to Figure 1-10 、17 together. As a preferred implementation of the first embodiment, the photovoltaic cleaning device 5 further includes:

[0072] A pair of connecting arms 7, which are respectively connected to the opposite other ends of a pair of cover plate flipping mechanisms 61 and the adjacent extending shaft of the connecting shaft 3 extending out of the bushing 2.

[0073] In an implementation manner of the first embodiment, one end of the connecting arm 7 is connected to the cover plate turning mechanism 61, and a shaft mounting hole 71 is provided at the opposite end of the connecting arm 7, the shape of which matches the outer shape of the opposite end of the connecting shaft 3 protruding from the shaft sleeve 2; one end of the connecting shaft 3 protruding from the shaft sleeve 2 is inserted into the shaft mounting hole 71 in a plug-in fit manner, so as to connect one end of the connecting shaft 3 protruding from the shaft sleeve 2 to the opposite end of the connecting arm 7.

[0074] Please refer to Figure 5-10 、17. As a preferred implementation manner, a screw fixing hole (not shown in the figure) that communicates with the shaft mounting hole 71 from the outer side surface of the connecting arm 7 (that is, penetrates the outer side surface of the connecting arm 7 and the shaft mounting hole 71) is further provided at the opposite end of the connecting arm 7; one end of the connecting shaft 3 protruding from the shaft sleeve 2 is inserted into the shaft mounting hole 71, and one end of the connecting shaft 3 protruding from the shaft sleeve 2 is pressed tightly in the shaft mounting hole 71 by a locking screw (not shown in the figure) passing through the screw fixing hole, so as to firmly connect the connecting shaft 3 and the connecting arm 7. And for the part of the metal shaft body of one end of the connecting shaft 3 protruding from the shaft sleeve 2 inserted into the shaft mounting hole 71 (corresponding to a part of the length with a relatively low concentration of corrosive gas), when the photovoltaic cleaning device 5 is a trough-type texturing device, it can also generate a certain degree of isolation and protection against the corrosive gas volatilized from the device liquid tank due to the closing effect of the shaft mounting hole 71 of the connecting arm 7, thereby reducing the risk of the one end of the connecting shaft 3 protruding from the shaft sleeve 2 breaking due to surface corrosion. In addition, the above setting of the shaft sleeve 2 and the use of a short shaft for the connecting shaft 3 ensure the overall force when the connecting shaft 3 is connected to the shaft sleeve 2 and the cover plate turning device 6, and further reduce the risk of the connecting shaft 3 breaking under the dual action of crystallization corrosion and long-term stress.

[0075] Please refer to Figure 5-10, 17. As a more preferred embodiment, one end of the connecting shaft 3 extending out of the sleeve 2 is provided with a boss 32 with a diameter smaller than the connecting shaft 3 and coaxial with the connecting shaft 3, and the boss 32 is provided with a screw through hole 321 for aligning with the screw fixing hole to connect the connecting shaft 3 with the cover flipping device 6, and the screw through hole 321 is perpendicular to the axial direction of the boss 32 (that is, the screw through hole 321 is perpendicular to the axial direction of the connecting shaft 3) and passes through the opposite sides of the boss 32, and the screw through hole 321 is arranged parallel to the cover body 1. The connecting arm 7 is in the shape of a long strip or a rectangular plate. The shaft mounting hole 71 is perpendicular to the length direction of the connecting arm 7 and is arranged at the other end of the connecting arm 7 relative to the cover plate flipping device 6. The shaft mounting hole 71 is preferably a through hole that penetrates the two opposite side surfaces of the connecting arm 7 (the shaft mounting hole 71 can also be a blind hole that does not penetrate the two opposite side surfaces of the connecting arm 7). The boss 32 is inserted into the shaft mounting hole 71. When the screw through hole 321 provided on the boss 32 is relatively positioned with the screw fixing hole provided at the other end of the connecting arm 7, the boss 32 is inserted into the shaft mounting hole 71. The locking screw in the screw fixing hole is aligned with the screw through hole 321, so that the end of the connecting shaft 3 extending out of the sleeve 2 is fastened in the shaft mounting hole 71, so as to fasten the connecting shaft 3 and the other end of the connecting arm 7, and a pair of connecting shafts 3 are fastened to a pair of connecting arms 7 at the axial ends of the cover body 1, respectively, so that when the cover flipping device 6 drives a pair of connecting arms 7 to swing up and down synchronously, it can drive the pair of connecting shafts 3 at the axial ends of the cover body 1 to link the cover body 1 to flip up and down along the flipping direction G.

[0076] In another embodiment (not shown in the figure), the end of the connecting shaft 3 extending out of the sleeve 2 may not be provided with the above-mentioned protruding column 32, and the above-mentioned screw through hole 321 is directly provided on the end of the connecting shaft 3 extending out of the sleeve 2.

[0077] In other embodiments (not shown in the figures), the above-mentioned protruding column 32 is not provided at the end of the connecting shaft 3 extending out of the sleeve 2, but a plug-in hole extending along the axial direction of the connecting shaft 3 is provided at the end of the connecting shaft 3 extending out of the sleeve 2, and a plug-in column matching the plug-in hole is provided at the other end of the connecting arm 7. The connecting shaft 3 and the connecting arm 7 are fastened together by plugging the plug-in column into the plug-in hole.

[0078] See also Figure 17 In the first embodiment, the cover flipping device 6 further includes:

[0079] A flip motor (not shown in the figure) has a driving shaft (not shown in the figure) for driving a pair of cover flipping mechanisms 61 to synchronously flip up and down, so that a pair of connecting arms 7 connected to the corresponding cover flipping mechanisms 61 swing synchronously, thereby driving the cover body 1 to flip up and down along with the pair of connecting arms 7.

[0080] See also Figure 17, in the preferred embodiment of the first embodiment, the drive shaft of the flipping motor is connected to a transmission shaft (not shown in the figure) through a transmission mechanism (not shown in the figure). The cover flipping mechanism 61 is a synchronous pulley or gear set transmission mechanism connected between the corresponding end of the transmission shaft and one end of the corresponding connecting arm 7. That is, a pair of cover flipping mechanisms 61 are respectively connected between the two ends of the transmission shaft and the adjacent connecting arms 7. By driving the transmission shaft to rotate with a fixed-axis rotation of the drive shaft, the synchronous pulley or gear set transmission mechanism of the pair of cover flipping mechanisms 61 is driven to move, thereby driving the connecting arm 7 to swing up and down relative to the photovoltaic cleaning device. Finally, the cover body 1 of the photovoltaic cleaning device cover structure is driven by the connecting shaft 3 to flip up and down relative to the photovoltaic cleaning device along the flipping direction G.

[0081] Please refer to Figure 1-10 , as a preferred embodiment of the first embodiment, the photovoltaic cleaning device cover structure further includes:

[0082] At least two screw perforations 21 are respectively provided at the opposite ends of the bushing 2 (i.e., the two ends of the bushing 2 in its axial direction); at least one screw mounting hole 31 matching the screw perforation 21 is provided on the part of the connecting shaft 3 passing through the inside of the bushing 2. Through a fastener (not shown in the figure) passing through the corresponding screw perforation 21 and screw mounting hole 31, the connecting shaft 3 and the bushing 2 are tightly connected, that is, a pair of connecting shafts 3 are respectively tightly connected to the corresponding axial ends of the bushing 2 through fasteners.

[0083] As a more preferred embodiment of the first embodiment, the above fastener is a connecting screw. By passing the connecting screw through the corresponding screw perforation 21 and screw mounting hole 31, the part of the connecting shaft 3 passing through the inside of the bushing 2 is tightly connected to the bushing 2.

[0084] In other embodiments of the first embodiment, the fastener can also be a connecting bolt.

[0085] Please refer to Figure 1-10 , in the first embodiment, the cover body 1 is in the shape of a rectangular plate, and the bushing 2 is a sleeve integrally connected to one side of the connecting end 11 of the cover body 1. The sleeve (bushing 2) extends parallel to the length direction of the cover body 1, and the axial ends of the sleeve (bushing 2) are flush with the two ends of the cover body 1 in its length direction. That is, the length of the sleeve (bushing 2) extending in the direction parallel to the length direction of the cover body 1 is equal to the length of the cover body 1. When a pair of connecting shafts 3 are respectively tightly connected to the corresponding axial ends of the bushing 2 through fasteners, the end of the connecting shaft 3 extending out of the bushing 2 also extends out to the outside of one end of the cover body 1 in the length direction, facilitating the connection of the end of the connecting shaft 3 extending out of the bushing 2 to the cover flipping devices 6 on both sides of the main tank body 51 of the photovoltaic cleaning device 5.

[0086] Please refer to Figure 1-10, in the first embodiment, there are two sets of screw perforations 21. Each set of screw perforations 21 includes at least two screw perforations 21. The two sets of screw perforations 21 are respectively arranged at opposite ends of the sleeve 2 (i.e., the two ends of the sleeve 2 in its axial direction). The part of the connecting shaft 3 passing through the inside of the sleeve 2 is provided with at least two screw mounting holes 31 that match the screw perforations 21.

[0087] Please refer to Figure 1-8 , as a preferred implementation manner of the first embodiment, each of the two sets of screw perforations 21 includes six screw perforations 21. And the six screw perforations 21 are divided into two rows of screw perforations 21 arranged along the axial direction of the sleeve 2 and spaced parallel to each other. Each row of screw perforations 21 includes three screw perforations 21 evenly spaced in the axial direction of the sleeve 2. The part of the connecting shaft 3 passing through the inside of the sleeve 2 is provided with six screw mounting holes 31 that match the screw perforations 21.

[0088] As another implementation manner of the first embodiment, each of the two sets of screw perforations 21 can also include two to five or more than six screw perforations 21. The part of the connecting shaft 3 passing through the inside of the sleeve 2 is correspondingly provided with the same number of screw mounting holes 31 as the number of screw perforations 21 in one set.

[0089] Please refer to Figure 1-10 , as a preferred implementation manner of the first embodiment, the sleeve 2 is a square tube-shaped (casing) with a rectangular cross-section and is hollow. The screw perforations 21 are through holes vertically provided on the tube wall of the sleeve 2. Correspondingly, the connecting shaft 3 is a square shaft with an outer shape matching the internal shape of the square tube-shaped sleeve 2 (casing) and a rectangular or square cross-section. The screw mounting holes 31 are threaded through holes (i.e., the screw mounting holes 31 penetrate through the connecting shaft 3) that match the screw perforations 21 and are perpendicular to the axial direction of the connecting shaft 3 (i.e., coincide with the radial direction of the connecting shaft 3).

[0090] In other implementation manners of the first embodiment, the screw mounting holes 31 can also be threaded blind holes (i.e., the screw mounting holes 31 do not penetrate through the connecting shaft 3) that match the screw perforations 21 and are perpendicular to the axial direction of the connecting shaft 3 (i.e., coincide with the radial direction of the connecting shaft 3).

[0091] Please refer to Figure 3 , 4 , 10, as a preferred implementation manner of the first embodiment, the square tube-shaped sleeve 2 (casing) and the cover plate main body 1 are integrally formed by injection molding. And the bottom wall 22 of the square tube-shaped sleeve 2 (casing) is integrally connected to one side of the rectangular plate-shaped cover plate main body 1. The top wall 24 of the square tube-shaped sleeve 2 (casing) far from its bottom wall 22 (i.e., far from the cover plate main body 1) is integrally connected to both side ends of the bottom wall 22 through a pair of side walls 23, improving the strength of the overall structure formed by the integral injection molding of the sleeve 2 and the cover plate main body 1.

[0092] In other embodiments of the first embodiment (not shown in the figure), the bushing 2 can also be an open sleeve with a U-shaped or C-shaped cross-section. The open side of the bushing 2 is integrally formed by injection molding and connected to one side of the rectangular plate-shaped cover body 1, so that the bushing 2 and the cover body 1 together enclose an internal accommodation space for accommodating the connecting shaft 3.

[0093] Please refer to Figure 3 、 4 、10. In the first embodiment, the screw through hole 21 is provided on the bottom wall 22 of the square tube-shaped bushing 2 (casing) connected to the cover body 1. A screw relief hole 13 matching the screw through hole 21 is provided at the junction of the cover body 1 and the bottom wall 22 of the through tube-shaped bushing 2 (casing). The connecting screw passes through the corresponding screw relief hole 13, screw through hole 21, and screw mounting hole 31 in sequence from the opposite side of the cover body 1 facing away from the bushing 2 (i.e., the side without the bushing 2) to firmly connect the connecting shaft 3 and the bushing 2.

[0094] The cover structure of the photovoltaic cleaning equipment provided by the present utility model splits the traditional single long connecting shaft 3 into a pair of shorter connecting shafts 3. A bushing 2 is provided at the connecting end 11 of the cover body 1. The pair of connecting shafts 3 are respectively inserted into the interiors at both axial ends of the bushing 2, so that most of the length of the connecting shaft 3 corresponding to the higher concentration of corrosive gas in the photovoltaic cleaning equipment 5 extends into the interior of the bushing 2, reducing the contact of this part of the metal shaft body with the corrosive gas in the photovoltaic cleaning equipment 5, thereby reducing the risk of fracture of the connecting shaft 3 due to crystallization corrosion on the surface.

[0095] Please refer to Figure 11-14 , in the second embodiment of the cover structure of the photovoltaic cleaning equipment provided by the present utility model, the difference between the cover structure of the photovoltaic cleaning equipment and that in the first embodiment is:

[0096] The screw through hole 21 is provided on the top wall 24 of the square tube-shaped bushing 2 (casing) away from the cover body 1. The connecting screw passes through the corresponding screw through hole 21 and screw mounting hole 31 in sequence from the side of the cover body 1 facing the bushing 2 (i.e., the side with the bushing 2) to firmly connect the connecting shaft 3 and the bushing 2.

[0097] Please refer to Figure 15 , in the third embodiment of the cover structure of the photovoltaic cleaning equipment provided by the present utility model, the differences between the cover structure of the photovoltaic cleaning equipment and those in the first and second embodiments are:

[0098] The reinforcing rib 4 is integrally connected to the free end 12 of the cover body 1 opposite to the connecting end 11 and is located on the opposite side (i.e., the relative side) of the cover body 1 where the bushing 2 is provided. That is, the reinforcing rib 4 and the bushing 2 are respectively arranged at both ends (the free end 12 and the connecting end 11) of the opposite (opposite) sides of the rectangular plate-shaped cover body 1, and both the reinforcing rib 4 and the bushing 2 extend parallel to the length direction of the rectangular plate-shaped cover body 1.

[0099] Please refer to Figure 16 In the fourth embodiment of the cover plate structure of the photovoltaic cleaning device provided by the present utility model, the difference between the cover plate structure of the photovoltaic cleaning device and those in the first to third embodiments is as follows:

[0100] The cross-section of the reinforcing rib 4 is in a U-shape and is formed by bending the cover plate main body 1, that is, by bending and protruding the free end 12 of the cover plate main body 1 toward the opposite side of the cover plate main body 1 where the bushing 2 is provided, so as to form a reinforcing rib 4 with a U-shaped cross-section on the free end 12 of the cover plate main body 1 and arranged on the two opposite sides of the rectangular plate-shaped cover plate main body 1 with the bushing 2.

[0101] In other embodiments (not shown in the figure), the reinforcing rib 4 with a U-shaped cross-section can also be arranged on the same side of the free end 12 of the cover plate main body 1 and the bushing 2 in the rectangular plate-shaped cover plate main body 1, and is arranged in parallel and spaced apart from the bushing 2 arranged at the connecting end 11 of the cover plate main body 1.

[0102] For the cover plate structure of the photovoltaic cleaning device provided by the present utility model, the bushing 2 and the reinforcing rib 4 integrally formed with the cover plate main body 1 respectively strengthen the structural strength of the cover plate main body 1 at the connecting end 11 and the free end 12 of the cover plate main body 1, and the bushing 2 extends integrally along the length direction to be flush with the two ends of the cover plate main body 1 in the length direction, so that the bushing 2 is connected to a pair of connecting shafts 3 (i.e., short shafts) that are relatively shorter than the bushing 2 at both ends in its length direction as a whole, thereby improving the fatigue resistance of the connection between the cover plate main body 1 and the connecting shaft 3 under the dual action of the crystallization corrosion of the volatile gas in the photovoltaic cleaning device and the long-term stress, and reducing the risk of fracture of the cover plate main body 1, especially at the connection with the connecting shaft 3.

[0103] Please refer to Figure 17 The present utility model also provides a photovoltaic cleaning device 5, which includes a main tank body 51 and also includes the above-mentioned cover plate structure of the photovoltaic cleaning device, wherein the cover plate flipping device 6 of the cover plate structure of the photovoltaic cleaning device is installed on the main tank body 51 and is used to drive the cover plate main body 1 of the cover plate structure of the photovoltaic cleaning device to flip up and down relative to the main tank body 51 along the flipping direction G, so as to open and close the top opening 511 of the main tank body 51 with the cover plate main body 1.

[0104] Please refer to Figure 17 In this embodiment, the photovoltaic cleaning device 5 is a trough-type texturing device, and its main tank body 51 is a liquid medicine tank for containing liquid medicine to perform cleaning and texturing operations on solar cell wafers (silicon wafers).

[0105] Please refer to Figure 17, As a preferred embodiment, the turning motor of the cover turning device 6 is installed on the top of the main tank body 51 of the photovoltaic cleaning device 5 and is located on one side of the edge of the top opening 511. The driving shaft of the turning motor is connected to a pair of cover turning mechanisms 61 through a transmission mechanism installed on the main tank body 51. The pair of cover turning mechanisms 61 are respectively arranged on both sides of one end of the top of the main tank body 51. The corresponding ends of a pair of connecting arms 7 are respectively connected to the pair of cover turning mechanisms 61 and are respectively located on both sides of the connecting end 11. The pair of connecting shafts 3 of the photovoltaic cleaning device cover structure are fixedly connected to the pair of connecting arms 7 at both axial ends of the cover body 1. When the driving shaft of the turning motor drives the pair of connecting arms 7 to swing up and down synchronously on both sides of one end of the top of the main tank body 51, the pair of connecting shafts 3 at both axial ends of the cover body 1 can drive the cover body 1 to turn up and down relative to the top of the main tank body 51 along the turning direction G, so as to open and close the top opening 511 of the main tank body 51.

[0106] Please refer to Figure 17 , As a preferred embodiment, there are a pair of photovoltaic cleaning device cover structures for the photovoltaic cleaning device 5. The corresponding cover turning devices 6 of the pair of photovoltaic cleaning device cover structures are respectively arranged at both ends of the top opening 511 of the main tank body 51. The corresponding pair of cover turning mechanisms 61 of the pair of cover turning devices 6 are respectively arranged on both sides of both ends of the top opening 511. The corresponding turning motors of the pair of cover turning devices 6 are respectively located at both ends of the top opening 511.

[0107] The pair of cover turning devices 6 respectively drive the two pairs of connecting arms 7 to swing up and down in opposite or the same directions along the turning direction G at both ends of the top of the main tank body 51 with their driving shafts, driving the two pairs of connecting shafts 3 at both axial ends of the pair of cover bodies 1 to drive the pair of cover bodies 1 to turn up and down in opposite or the same directions relative to the top opening 511 of the main tank body 51 along the turning direction G, so as to drive the corresponding cover bodies 1 of the pair of photovoltaic cleaning device cover structures to turn up and down in opposite (relatively approaching and closing by turning) or the same (relatively moving away and opening by turning) directions relative to the main tank body 51 along the turning direction G, so that the pair of cover bodies 1 turn and open / close synchronously and at the same time open and close the top opening 511.

[0108] In other embodiments (not shown in the figures), the cover flipping mechanism 61 of the cover flipping device 6 can also use a telescopic cylinder instead of a flipping motor. The fixed end of the telescopic cylinder is hinged to the top of the main trough body 51, the telescopic rod of the telescopic cylinder is hinged to one end of the connecting rod, one end of the connecting rod is hinged to one end of the connecting arm 7, and the opposite end of the connecting arm 7 is connected to the connecting shaft 3. Through the linear telescopic movement of the telescopic rod of the telescopic cylinder relative to its fixed end, the fixed end, the telescopic rod, the connecting rod and the connecting arm 7 of the telescopic cylinder are driven to swing relative to the main trough body 51 under the linkage effect, so that the connecting arm 7 hinged to the connecting rod swings and turns up and down around the axial direction of the connecting shaft 3 at the same time, and further drives the connecting shaft 3 to rotate fixedly in the positive and negative directions around its axial direction, so that the cover structure of the photovoltaic cleaning device rotates up and down fixedly in the positive and negative directions around the connecting shaft 3 to open and close the top opening 511 of the main trough body 51.

[0109] The above are only the preferred embodiments of the present invention and are not intended to limit the present invention. Those of ordinary skill in the art should understand that any modifications, equivalent replacements, and improvements made within the spirit and principle of the present invention should be included within the protection scope of the present invention.

Claims

1. A photovoltaic cleaning equipment cover structure, characterized in that: include: Cover plate body (1); A shaft sleeve (2) is arranged at a connection end (11) of the cover plate body (1); A reinforcing rib (4) is provided on the cover plate body (1); The cover plate body (1), the shaft sleeve (2) and the reinforcing rib (4) are integrally formed.

2. The photovoltaic cleaning equipment cover structure according to claim 1, characterized in that: The reinforcing rib (4) is integrally connected to the free end (12) of the cover plate body (1) opposite to the connecting end (11), and is located on the same side of the cover plate body (1) where the shaft sleeve (2) is arranged or on the opposite side.

3. The photovoltaic cleaning equipment cover structure according to claim 2, characterized in that: The reinforcing rib (4) has a cross-section in the shape of a Chinese character "X", and is formed by bending the cover plate body (1).

4. The photovoltaic cleaning equipment cover structure according to any one of claims 1 to 3, characterized in that: Also includes: A cover plate flipping device (6), comprising a pair of cover plate flipping mechanisms (61) provided on the photovoltaic cleaning device (5) and respectively located on both sides of the connecting end (11); A pair of connecting shafts (3) are respectively connected to a pair of cover plate flipping mechanisms (61) and the ends of adjacent shaft sleeves (2), and the cover plate flipping mechanisms (61) and the shaft sleeves (2) completely cover the connecting shafts (3).

5. The photovoltaic cleaning equipment cover structure according to claim 4, characterized in that: One end of the connecting shaft (3) is inserted into the end of the shaft sleeve (2), and the other end of the connecting shaft (3) extends out of the shaft sleeve (2); The photovoltaic cleaning equipment cover plate structure also includes: A pair of connecting arms (7) are respectively connected to a pair of cover plate flipping mechanisms (61) and the other ends of the adjacent connecting shafts (3) extending out of the shaft sleeve (2).

6. The photovoltaic cleaning equipment cover structure according to claim 5, characterized in that: One end of the connecting arm (7) is connected to the cover plate flipping mechanism (61), and the other end of the connecting arm (7) is provided with a shaft mounting hole (71) matching the connecting shaft (3); The connecting shaft (3) is connected to the connecting arm (7) by inserting and matching one end of the connecting shaft (3) extending out of the shaft sleeve (2) with the shaft mounting hole (71).

7. The photovoltaic cleaning equipment cover structure according to claim 4, characterized in that: Also includes: At least two screw through holes (21) are respectively arranged at two opposite ends of the shaft sleeve (2); The portion of the connecting shaft (3) that passes through the interior of the shaft sleeve (2) is provided with at least one screw mounting hole (31) that matches the screw through hole (21); The connecting shaft (3) and the shaft sleeve (2) are fastened together by passing the fastener through the corresponding screw through hole (21) and the screw mounting hole (31).

8. The photovoltaic cleaning equipment cover structure according to claim 7, characterized in that: The cover plate body (1) is rectangular, and the shaft sleeve (2) is a sleeve integrally connected to one side of the connection end (11) of the cover plate body (1), the sleeve extending parallel to the length direction of the cover plate body (1), and the two ends of the sleeve are flush with the two ends of the cover plate body (1) in the length direction thereof; The screw through holes (21) are provided in two groups, and the two groups of screw through holes (21) each include at least two screw through holes (21) which are respectively provided at opposite ends of the shaft sleeve (2), and the portion of the connecting shaft (3) which is provided inside the shaft sleeve (2) is provided with at least two screw mounting holes (31) which match the screw through holes (21).

9. A photovoltaic cleaning device, comprising a main tank body (51), characterized in that: It also includes a photovoltaic cleaning equipment cover structure as described in any one of claims 4 to 8, wherein the cover flipping device (6) is installed on the main tank body (51) and is used to drive the cover body (1) to flip up and down relative to the main tank body (51) so that the cover body (1) opens and closes the top opening (511) of the main tank body (51).

10. The photovoltaic cleaning device according to claim 9, characterized in that: The photovoltaic cleaning equipment cover plate structure is provided with a pair of cover plate flipping devices (6), which are respectively arranged at the two ends of the top opening (511) and are respectively used to drive a pair of corresponding cover plate bodies (1) of the photovoltaic cleaning equipment cover plate structure to flip up and down relative to the main tank body (51) in the opposite direction or in the opposite direction, so that the pair of cover plate bodies (1) open and close the top opening (511) at the same time.

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