Scraping strip assembly and photovoltaic cleaning machine

Abstract

The utility model discloses a scraping strip assembly and a photovoltaic cleaning machine. The scraping strip assembly is suitable for being connected to a walking beam of the photovoltaic cleaning machine so as to scrape and sweep a photovoltaic panel. The scraping strip assembly comprises a scraping strip, a connecting base and at least one scraping strip switching rod. The scraping strip and the connecting base are provided with a connecting protrusion and a connecting groove which can be connected in a matched mode. The scraping strip transfer rod is provided with a transfer concave part connected with the connecting protrusion in a matched mode and a transfer convex part connected with the connecting groove in a matched mode. The scraping strip switching rod is detachably connected between the scraping strip and the connecting base so as to change the overall height of the scraping strip assembly. According to the scraping strip assembly provided by the utility model, the universality of the scraping strip can be improved, and the specifications of the rubber strips are reduced and the cost is reduced while the use heights of different rubber strips are met. The photovoltaic cleaning machine provided by the invention comprises the scraping strip assembly.

Description

Technical Field

[0001] This application relates to the field of photovoltaic cleaning technology, and in particular to a scraper assembly and a photovoltaic cleaning machine. Background Technology

[0002] A photovoltaic (PV) power station is a device that converts solar energy into electrical energy. The power generation efficiency and lifespan of a PV power station are greatly affected by contamination, making regular or on-demand cleaning crucial. To facilitate cleaning, the industry has developed PV cleaning machines. One existing PV cleaning machine includes a traveling beam and a drive mechanism that moves the beam. The traveling beam spans the PV panel array, and a rubber strip is connected below it. The traveling beam moves under the drive mechanism, and the rubber strip scrapes the PV panel array. The amount of contact between the rubber strip and the PV panel array significantly affects the cleaning effect and operational reliability of the PV cleaning machine. When the contact area is small, cleaning may be incomplete, resulting in poor cleaning. Conversely, a large contact area increases the operating resistance of the PV cleaning machine, affecting its reliability. Therefore, the height of the rubber strip is often set separately for each machine model. However, this results in a wide variety of rubber strip specifications with poor versatility, hindering production, maintenance, and cost reduction.

[0003] Therefore, it is necessary to propose a technical solution to overcome the shortcomings of existing technologies. Summary of the Invention

[0004] This application provides a scraper assembly and a photovoltaic cleaning machine, which can improve the versatility of the scraper, meet different usage heights of the scraper, reduce the specifications of the scraper, and lower costs.

[0005] This application is achieved through the following technical solution: a scraper assembly, suitable for connection to the walking beam of a photovoltaic cleaning machine, for scraping photovoltaic panels, wherein the scraper assembly includes a scraper, a connecting seat, and at least one scraper adapter rod. The scraper and the connecting seat are provided with connecting protrusions and connecting grooves that can be adapted to connect. The scraper adapter rod is provided with an adapter recess adapted to connect with the connecting protrusion and an adapter protrusion adapted to connect with the connecting groove. The scraper adapter rod is detachably connected between the scraper and the connecting seat to change the overall height of the scraper assembly.

[0006] As a further improvement of this application, the connecting protrusion is disposed at the upper end of the scraper, the connecting groove is disposed at the lower end of the connecting seat, the adapter protrusion is disposed at the upper end of the scraper adapter rod, and the adapter recess is disposed at the lower end of the scraper adapter rod.

[0007] As a further improvement to the technical solution of this application, the scraper adapter rod also includes a glue-reducing groove, which is disposed between the adapter protrusion and the adapter recess.

[0008] As a further improvement of the present application, the scraper assembly further includes a pin that passes through the thickness direction of the scraper adapter rod; the pin passes through the scraper adapter rod and the connecting seat to restrict the relative sliding between the two, or the pin passes through the scraper adapter rod and the scraper to restrict the relative sliding between the two.

[0009] As a further improvement to the technical solution of this application, the pin is a metal strip cotter pin.

[0010] As a further improvement of the technical solution of this application, the scraper assembly includes a plurality of scraper adapter rods, which are connected in sequence in the height direction of the scraper assembly, with the uppermost rod connected to the connecting seat and the lowermost rod connected to the scraper.

[0011] As a further improvement of this application, the lower end of the scraper is provided with several discontinuous slits, which divide the lower end of the scraper into several scraping tongues.

[0012] As a further improvement of this application, the scraper is provided with an opening that communicates with the upper end of the disconnected gap.

[0013] As a further improvement to the technical solution of this application, the scraper tongue is provided with several transversely extending ribs.

[0014] This application also achieves this through the following technical solution: a photovoltaic cleaning machine, including a drive component, a walking beam and a scraper component as described above, wherein the scraper component is connected to the walking beam, and the drive component drives the walking beam to move on the photovoltaic panel, so as to drive the scraper component to clean the surface of the photovoltaic panel.

[0015] The scraper assembly provided in this application includes a scraper adapter rod, which is detachably connected between the scraper and the connecting seat to change the overall height of the scraper assembly. One or more scraper adapter rods can be set between the connecting seat and the scraper as needed, thereby meeting the usage requirements of different heights. In this way, there is no need to use different specifications of rubber strips. One type or a small number of specifications of rubber strips can meet the needs of various heights, improving the versatility of the scraper. While meeting the different usage heights of rubber strips, the specifications of rubber strips are reduced, which greatly reduces costs. Attached Figure Description

[0016] Figure 1 This is a perspective view of an embodiment of the photovoltaic cleaning machine of this application applied to a photovoltaic array.

[0017] Figure 2 yes Figure 1 A magnified view of a portion of point A in the middle.

[0018] Figure 3 This is a perspective view of an embodiment of the scraper assembly of this application.

[0019] Figure 4 This is an exploded perspective view of an embodiment of the scraper assembly of this application.

[0020] The attached figures are labeled as follows: 100, photovoltaic array; 200, photovoltaic cleaning machine; 1, scraper; 11, connecting protrusion; 12, scraper body; 120, opening; 121, disconnection gap; 122, scraper tongue; 123, protruding rib; 2, connecting seat; 21, connecting groove; 3, scraper adapter rod; 31, adapter protrusion; 32, adapter recess; 33, adhesive reduction groove; 4, traveling beam; 5, pin. Detailed Implementation

[0021] To provide a clearer understanding of the technical features, objectives, and effects of this application, the specific embodiments of this application will now be described in detail with reference to the accompanying drawings.

[0022] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Unless otherwise specified, the technical features in the following embodiments can be combined with each other. The embodiments described below are merely some embodiments of this application, not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of this application without creative effort are within the scope of protection of this application.

[0023] Please see Figures 1 to 4 As shown, this application provides a scraper assembly and a photovoltaic cleaning machine 200. The photovoltaic cleaning machine 200 is placed on a photovoltaic array 100 and is used to clean dust and debris on the photovoltaic array 100. The photovoltaic cleaning machine 200 includes a drive assembly and a traveling beam 4 driven by the drive assembly. The scraper assembly is connected to the traveling beam 4. During the movement of the traveling beam 4, the scraper assembly contacts the photovoltaic array 100 to scrape off dust, debris, etc. on the photovoltaic array 100.

[0024] In this embodiment, the scraper assembly includes a scraper 1, a connecting seat 2, and at least one scraper adapter rod 3. The scraper 1 and the connecting seat 2 are provided with a connecting protrusion 11 and a connecting groove 21 that can be adapted for connection. The scraper adapter rod 3 is provided with an adapter recess 32 adapted for connection with the connecting protrusion 11 and an adapter protrusion 31 adapted for connection with the connecting groove 21. The scraper adapter rod 3 is detachably connected between the scraper 1 and the connecting seat 2 to change the overall height of the scraper assembly.

[0025] The scraper assembly provided in this application includes a scraper adapter rod 3, which is detachably connected between the scraper strip 1 and the connecting seat 2 to change the overall height of the scraper assembly. One or more scraper adapter rods 3 can be provided between the connecting seat 2 and the scraper strip 1 as needed, thereby meeting the usage requirements of different heights. This eliminates the need for different specifications of rubber strips; using one or a small number of rubber strip specifications can meet the needs of various heights, improving the versatility of the scraper strip 1. While meeting different rubber strip usage heights, it reduces the number of rubber strip specifications, significantly lowering costs.

[0026] It is understandable that the connecting protrusion 11 and connecting groove 21 on the scraper 1 and the connecting seat 2 are compatible, meaning that even without the scraper adapter rod 3, the scraper 1 and the connecting seat 2 can be directly connected through the cooperation of the connecting protrusion 11 and the connecting groove 21. The scraper adapter rod 3 is provided with a connecting recess 32 that is adapted to connect with the connecting protrusion 11, and a connecting protrusion 31 that is adapted to connect with the connecting groove 21, so that the scraper adapter rod 3 can be connected to both the scraper 1 and the connecting seat 2 simultaneously, serving as a transfer function and increasing the overall height of the scraper assembly. In this embodiment, the structure of the connecting protrusion 31 on the scraper adapter rod 3 can be the same as the structure of the connecting protrusion 11, and the structure of the connecting recess 32 on the scraper adapter rod 3 can be the same as the structure of the connecting groove 21.

[0027] In this embodiment, the connecting protrusion 11 is disposed at the upper end of the scraper 1, the connecting groove 21 is disposed at the lower end of the connecting seat 2, the transition protrusion 31 is disposed at the upper end of the scraper adapter rod 3, and the transition recess 32 is disposed at the lower end of the scraper adapter rod 3. In other embodiments, the connecting protrusion 11 may be disposed at the lower end of the connecting seat 2, the connecting groove 21 may be disposed at the upper end of the scraper 1, and the transition protrusion 31 and transition recess 32 on the scraper adapter rod 3 may be arranged in reverse order.

[0028] Please see Figure 3 and Figure 4 As shown, in this embodiment, the upper end of the connecting seat 2 is provided with a laterally extending connecting plate, which is connected to the traveling beam 4 by screws. The scraper adapter rod 3 also includes a rubber-reducing groove 33, which is disposed between the adapter protrusion 31 and the adapter recess 32. The rubber-reducing groove 33 can reduce the weight of the scraper adapter rod 3, reduce stress, improve elasticity, and ensure the reliability of the connection with the scraper 1 and the connecting seat 2. In this embodiment, both the connecting seat 2 and the scraper adapter rod 3 are hard plastic parts, and the materials used can be the same.

[0029] Please continue reading. Figure 3 and Figure 4 As shown, the scraper assembly further includes a pin 5 that passes through the scraper adapter rod 3 along its thickness direction. The pin 5 passes through the scraper adapter rod 3 and the connecting seat 2 to restrict relative sliding between them; alternatively, the pin 5 passes through the scraper adapter rod 3 and the scraper 1 to restrict relative sliding between them. In this embodiment, the scraper 1, the connecting seat 2, and the scraper adapter rod 3 are all provided with small holes passing through them along their thickness direction. The pin 5 passes through these small holes to fix the scraper 1 and the scraper adapter rod 3, as well as the scraper adapter rod 3 and the connecting seat 2, respectively. In this embodiment, since the connecting protrusion 11 on the scraper 1 and the connecting recess 32 on the scraper adapter rod 3, as well as the connecting protrusion 31 on the scraper adapter rod 3 and the connecting groove 21 on the connecting seat 2, are all assembled by sliding insertion along the length direction of the scraper assembly, the degree of freedom in the height direction is restricted after assembly, but not in the direction of sliding insertion, which poses a risk of slippage during use. Therefore, in this embodiment, a pin 5 is provided to limit the slippage between components. In this embodiment, the pin 5 is a metal strip cotter pin. That is, the pin 5 is formed by bending an elastic metal strip in half, with the open end formed by the fold passing through the small hole, and the other end opposite the open end forming a circular protrusion to prevent it from passing through the small hole. After the open end passes through the two components to be connected, the two metal strips at the open end are pried apart to prevent the pin 5 from detaching from the small hole.

[0030] This embodiment uses the example of a scraper adapter rod 3 being provided between the scraper blade 1 and the connecting seat 2. In other embodiments, the scraper blade assembly may include multiple scraper adapter rods 3, which are connected sequentially in the height direction of the scraper blade assembly, with the uppermost rod connected to the connecting seat 2 and the lowermost rod connected to the scraper blade 1.

[0031] Please see Figure 4As shown, in this embodiment, the scraper 1 includes a connecting protrusion 11 and a scraper body 12. The lower end of the scraper body 12 is provided with several discontinuous slits 121, which divide the lower end of the scraper 1 into several scraping tongues 122. These scraping tongues 122 are relatively independent, and when cleaning the photovoltaic array 100, the mutual influence between adjacent scraping tongues 122 is minimal. When encountering small, hard obstacles, they can easily deform and pass over them, reducing operating resistance and the incidence of operational abnormalities. The discontinuous slits 121 only separate adjacent scraping tongues 122; the discontinuous slits 121 have no width to prevent the photovoltaic array 100 from being missed at the discontinuous slits 121. Furthermore, the scraper 1 is provided with an opening 120 communicating with the upper end of the discontinuous slits 121. The opening 120 can relieve stress and prevent the scraper 1 from being further torn along the upper end of the discontinuous slits 121 during use. The surface of the opening 120 is a smooth arc surface. In this embodiment, the scraper tongue 122 is also provided with several laterally extending ribs 123. During the scraping process of the scraper 1 on the photovoltaic array 100, the scraper tongue 122 elastically bends and deforms, causing the several ribs 123 to contact the surface of the photovoltaic array 100, which can scrape the photovoltaic array 100 more thoroughly and improve the cleaning effect. In this embodiment, the ribs 123 are triangular prisms and are arranged on opposite sides of the scraper body 12, so that they can achieve a good scraping effect when the scraper assembly moves in both directions.

[0032] Please refer to it again. Figure 1 As shown, this application also provides a photovoltaic cleaning machine 200, which includes a drive assembly, a walking beam 4 and a scraper assembly as described above. The scraper assembly is connected to the walking beam 4, and the drive assembly drives the walking beam 4 to move on the photovoltaic panel, so as to drive the scraper assembly to clean the surface of the photovoltaic panel.

[0033] As can be seen from the above description of the specific embodiments, the scraper assembly provided in this application includes a scraper adapter rod 3. The scraper adapter rod 3 is detachably connected between the scraper 1 and the connecting seat 2 to change the overall height of the scraper assembly. One or more scraper adapter rods 3 can be set between the connecting seat 2 and the scraper 1 as needed, so as to meet the usage requirements of different heights. In this way, there is no need to use different specifications of rubber strips. One type or a small number of specifications of rubber strips can meet the needs of various heights, improving the versatility of the scraper 1. While meeting the different rubber strip usage heights, the specifications of the rubber strips are reduced, which greatly reduces the cost.

[0034] This application is illustrated through several specific embodiments. Those skilled in the art will understand that various modifications and equivalent substitutions can be made to this application without departing from its scope. Furthermore, various modifications can be made to this application for specific situations or circumstances without departing from the scope of this utility model. Therefore, this application is not limited to the specific embodiments disclosed, but should include all embodiments falling within the scope of the claims of this application.

Claims

1. A wiper strip assembly adapted to be connected to a walking beam of a photovoltaic panel cleaning machine for wiping a photovoltaic panel, characterized in that, The squeegee assembly comprises a squeegee, a connecting seat and at least one squeegee adapter rod, the squeegee and the connecting seat are provided with connecting protrusions and connecting grooves capable of being connected, the squeegee adapter rod is provided with an adapter recess capable of being connected with the connecting protrusions and an adapter protrusion capable of being connected with the connecting grooves, and the squeegee adapter rod is detachably connected between the squeegee and the connecting seat to change the overall height of the squeegee assembly.

2. The wiper blade assembly of claim 1, wherein, The connecting protrusions are arranged at the upper end of the squeegee, the connecting grooves are arranged at the lower end of the connecting seat, the adapter protrusion is arranged at the upper end of the squeegee adapter rod, and the adapter recess is arranged at the lower end of the squeegee adapter rod.

3. The wiper blade assembly of claim 2, wherein, The squeegee adapter rod further comprises a glue-reducing groove arranged between the adapter protrusion and the adapter recess.

4. The wiper blade assembly of claim 1, wherein, The squeegee assembly further comprises a pin member arranged along the thickness direction of the squeegee adapter rod; the pin member penetrates the squeegee adapter rod and the connecting seat to limit the relative sliding of the two, or the pin member penetrates the squeegee adapter rod and the squeegee to limit the relative sliding of the two.

5. The wiper blade assembly of claim 4, wherein, The pin member is a metal strip split pin.

6. The wiper blade assembly of claim 1, wherein, The squeegee assembly comprises a plurality of squeegee adapter rods, the plurality of squeegee adapter rods are sequentially connected in the height direction of the squeegee assembly, the uppermost squeegee adapter rod is connected with the connecting seat, and the lowermost squeegee adapter rod is connected with the squeegee.

7. The wiper blade assembly of any one of claims 1 to 6, wherein, The lower end of the squeegee is provided with a plurality of disconnection gaps, and the plurality of disconnection gaps divide the lower end of the squeegee into a plurality of squeegee blades.

8. The wiper blade assembly of claim 7, wherein, The squeegee is provided with an opening communicating with the upper end of the disconnection gap.

9. The wiper blade assembly of claim 7, wherein, The squeegee blade is provided with a plurality of transversely extending ribs.

10. A photovoltaic cleaning machine characterized by, The squeegee assembly comprises a driving assembly, a walking beam and a squeegee assembly as claimed in any one of claims 1 to 9, the squeegee assembly is connected to the walking beam, and the driving assembly drives the walking beam to move on a photovoltaic panel to drive the squeegee assembly to clean the surface of the photovoltaic panel.

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