A cleaning robot for cleaning photovoltaic modules uses a return platform.

Abstract

This utility model relates to a return platform for a cleaning robot used for cleaning photovoltaic modules, suitable for mounting on the main shaft of a photovoltaic support. The return platform includes a platform body, a support frame, a mounting bracket, and a triggering device. The platform body and the support frame are mounted above the portion of the main shaft extending beyond the photovoltaic module. The triggering device is fixed to the support frame, which is located on the side of the platform body furthest from the photovoltaic module. At least one of the platform body and the support frame is fixedly connected to the main shaft via the mounting bracket. This utility model's return platform can be installed on a shorter main shaft, reducing production costs while providing good wind resistance.

Description

Technical Field

[0001] This utility model relates to a return platform for a cleaning robot used for cleaning photovoltaic modules, belonging to the field of photovoltaic technology. Background Technology

[0002] In the photovoltaic (PV) industry, when cleaning robots clean PV modules on PV racks, a return platform is installed at the end of the rack to ensure complete cleaning of the last PV module. Currently, most return platforms are partially mounted on the main shaft of the PV rack, with the other part suspended in the air. To ensure stable support for the return platform, the length of the end of the main shaft must meet certain requirements. However, to control production costs, the length of the end of the main shaft extending beyond the PV module in existing PV racks is relatively short, which is not conducive to the installation of complex frame-type return platforms. Utility Model Content

[0003] The purpose of this invention is to provide a return platform for a cleaning robot that cleans photovoltaic modules. It has a simple structure, can be installed on a shorter main shaft, reduces production costs, and has good wind resistance.

[0004] To achieve the above objectives, the present invention adopts the following technical solution:

[0005] A return platform for a cleaning robot for cleaning photovoltaic modules is adapted to be mounted on the main shaft of a photovoltaic support. It includes a platform body, a support frame, a mounting bracket, and a triggering device. The platform body and the support frame are mounted above the portion of the main shaft that extends out of the photovoltaic module. The triggering device is fixed to the support frame. The support frame is located on the side of the platform body away from the photovoltaic module. At least one of the platform body and the support frame is fixedly connected to the main shaft via the mounting bracket.

[0006] As a further improvement of the present invention, the platform body includes a support rod, two connecting rods and two limiting rods. The support rod is one and perpendicular to the main shaft. One end of each of the two connecting rods is fixedly connected to the opposite ends of the same side of the support rod. Each connecting rod is perpendicular to the support rod. The limiting rod is perpendicularly connected to the other end of the connecting rod and is set away from the main shaft.

[0007] As a further improvement of the present invention, the mounting bracket includes a first mounting bracket, and the platform body is fixedly connected to the main shaft through the first mounting bracket.

[0008] As a further improvement of the present invention, the mounting bracket includes a second mounting bracket, and the support frame is fixedly connected to the main shaft through the second mounting bracket.

[0009] As a further improvement of the present invention, the first mounting bracket includes a first support member and a first connecting member that are separately arranged and connected to each other, and the second mounting bracket includes a second support member and a second connecting member that are separately arranged and connected to each other. The first connecting member and the second connecting member are fixedly installed side by side on the main shaft, the first support member is fixed to the support rod, and the second support member is fixed to the support frame.

[0010] As a further improvement of this utility model, it also includes a purlin fixed above the main shaft, the top of the purlin being fixedly connected to the support rod, and the bottom of the purlin being fixedly connected to the first support member.

[0011] As a further improvement of the present invention, the support frame includes two longitudinal support rods and one transverse support rod. The two longitudinal support rods are arranged in parallel relative to each other, and one end of each longitudinal support rod is fixedly connected to the support rod. The two ends of the transverse support rod are respectively fixedly connected to the other ends of the two longitudinal support rods away from the support rod to form a U-shaped structure.

[0012] As a further improvement of this utility model, the support rod is provided with an elongated hole, and the extension direction of the elongated hole is consistent with the length direction of the main shaft.

[0013] As a further improvement of the present invention, the sensing device is installed on the support crossbar and includes a first plate portion and a second plate portion formed by integral bending, with a reinforcing member provided between the first plate portion and the second plate portion.

[0014] As a further improvement of the present invention, the invention also includes a component connector. A plurality of photovoltaic modules are fixedly installed on the photovoltaic bracket. One end of the component connector is fixedly connected to the support rod, and the other end of the component connector is provided with a hook for hooking the frame of the photovoltaic module adjacent to the support rod.

[0015] Compared to existing technologies, the return platform of this utility model for cleaning photovoltaic modules uses a mounting bracket to set the platform body and support frame on the main shaft. This ensures that the center of gravity of the return platform is located on or near the main shaft, forming a triangular structure with the two ends of the platform body. The portion of the main shaft extending beyond the photovoltaic module only needs to be sufficient to secure the mounting bracket, without requiring a large length. This utility model's return platform can be installed on a shorter main shaft, reducing production costs while providing good wind resistance. Attached Figure Description

[0016] Figure 1This is a three-dimensional assembly diagram of the cleaning robot for cleaning photovoltaic modules, with its return platform mounted on the main shaft of the photovoltaic support.

[0017] Figure 2 yes Figure 1 An enlarged view of part A in the image;

[0018] Figure 3 yes Figure 1 3D exploded view;

[0019] Figure 4 yes Figure 3 Further exploded view;

[0020] Figure 5 This is a three-dimensional assembly diagram of the return platform used by the cleaning robot for cleaning photovoltaic modules according to this utility model;

[0021] Figure 6 This is a three-dimensional exploded view of the return platform of the cleaning robot for cleaning photovoltaic modules according to this utility model;

[0022] Figure 7 This is a three-dimensional schematic diagram of a cleaning robot for cleaning photovoltaic modules, wherein the return platform of the cleaning robot is mounted on the main shaft and the hook on the return platform hooks the frame of the photovoltaic module.

[0023] Figure 8 yes Figure 7 Enlarged view of section B;

[0024] Figure 9 yes Figure 5 Side view;

[0025] Figure 10 yes Figure 5 A three-dimensional assembly diagram of the central support frame, the first mounting bracket, and the sensing device;

[0026] Figure 11 yes Figure 10 A three-dimensional exploded view. Detailed Implementation

[0027] The exemplary embodiments of the present invention will now be described in detail with reference to the accompanying drawings. If several embodiments exist, features in these embodiments may be combined with each other without conflict. When the description refers to the drawings, unless otherwise stated, the same numbers in different drawings represent the same or similar elements. The descriptions in the following exemplary embodiments do not represent all embodiments consistent with the present invention; rather, they are merely examples of apparatuses, products, and / or methods consistent with some aspects of the present invention as set forth in the claims.

[0028] The terminology used in this invention is for the purpose of describing particular embodiments only and is not intended to limit the scope of protection of this invention. The singular forms “a,” “the,” or “the” used in the specification and claims of this invention are also intended to include the plural forms, unless the context clearly indicates otherwise.

[0029] It should be understood that the terms "first," "second," and similar words used in the specification and claims of this utility model do not indicate any order, quantity, or importance, but are merely used to distinguish the features. Similarly, the terms "an" or "a" do not indicate a quantity limitation, but rather indicate the presence of at least one. Unless otherwise stated, the terms "front," "back," "left," "right," "upper," "lower," and similar words appearing in this utility model are for ease of explanation only and are not limited to a specific location or spatial orientation. The terms "comprising" or "including" are an open-ended expression, meaning that the element preceding "comprising" or "including" covers the element following "comprising" or "including" and its equivalents, which does not exclude that the element preceding "comprising" or "including" may also include other elements. If "several" appears in this utility model, it means two or more.

[0030] Please refer to Figures 1 to 11As shown, this utility model discloses a return platform 400 for a cleaning robot used for cleaning photovoltaic modules. The return platform 400 is mounted on the main shaft 200 of the photovoltaic support 100 and located at the opposite end of the stopping platform 300. That is, both the stopping platform 300 and the return platform 400 are located on the photovoltaic support 100, and when viewed along the extension direction of the main shaft 200, they are located at opposite ends of the main shaft 200. The return platform 400 includes a platform body 1, a support frame 2, a mounting bracket 3, and a triggering device 20. The platform body 1 and the support frame 2 are mounted above the portion of the main shaft 200 extending beyond the photovoltaic module 500, and the triggering device 20 is fixed to the support frame 2. The support frame 2 is located on the side of the platform body 1 away from the photovoltaic module 500. At least one of the platform body 1 and the support frame 2 is fixedly connected to the main shaft 200 by the mounting bracket 3. Specifically, multiple photovoltaic modules 500 are arranged sequentially along the extension direction of the main shaft 200 of the photovoltaic bracket. After the installation of the photovoltaic modules 500 is satisfied, both ends of the main shaft 200 continue to extend a distance away from the photovoltaic modules 500 along its axial direction, so that both ends of the main shaft 200 form parts that extend beyond the photovoltaic modules 500. The stopping platform 300 and the return platform 400 are respectively located on the parts of the main shaft 200 that extend beyond the photovoltaic modules 500. The platform body 1 and the support frame 2 of the return platform 400 are both fixed to the main shaft 200 by the mounting bracket 3. Therefore, the center of gravity of the return platform of the cleaning robot for cleaning photovoltaic modules of this utility model is located on or close to the main shaft 200. The center of gravity and the two ends of the platform body 1 form a triangular structure, which can be installed on a shorter main shaft 200, reducing production costs while having good wind resistance.

[0031] Please refer to Figures 1 to 11 And specifically refer to Figures 5 to 7As shown, the platform body 1 includes a support rod 11, two connecting rods 12, and two limiting rods 13. The support rod 11 is a single rod perpendicular to the main shaft 200. The two connecting rods 12 are respectively located at opposite ends of the support rod 11 on the same side. One end of each connecting rod 12 is perpendicular to and fixedly connected to the support rod 11. The limiting rods 13 are respectively located at the other end of each connecting rod 12 and are positioned away from the main shaft 200. The two limiting rods 13 are parallel to the support rod 11 and lie on the same straight line. Specifically, the connecting rods 12 provide a track for the cleaning robot's wheels, and the limiting rods 13 provide a limit for the cleaning robot's guide wheels, preventing the cleaning robot from detaching from the return platform 400 for cleaning photovoltaic modules. The support rod 11, connecting rods 12, and limiting rods 13 together form the basic framework of the return platform 400 for cleaning photovoltaic modules, i.e., the platform body 1. The basic framework of the return platform 400 for the cleaning robot used to clean photovoltaic modules, namely the platform body 1, is an open structure. This provides return space for the cleaning robot while also reducing the weight of the return platform 400, thus giving this invention a lightweight feature. Please refer to... Figure 6 As shown, the support rod 11, connecting rod 12, and limiting rod 13 are all hollow square tube structures. This design reduces the weight of the return platform 400 of the cleaning robot used for cleaning photovoltaic modules while ensuring connection strength, further meeting the requirements for lightweight design.

[0032] Please refer to Figure 10 and Figure 11 As shown, the support frame 2 includes two longitudinal support rods 21 and one transverse support rod 22. The two longitudinal support rods 21 are arranged parallel to each other, and one end of each longitudinal support rod 21 is fixedly connected to the support rod 11. The two ends of the transverse support rod 22 are respectively fixedly connected to the other ends of the two longitudinal support rods 21 away from the support rod 11. The transverse support rod 22 and the two longitudinal support rods 21 together form a U-shaped structure. The specific structure of the support frame 2 is U-shaped, which facilitates welding the support frame 2 to the support rod 11 and facilitates the installation of the triggering device 20 on the transverse support rod 22.

[0033] Please refer to Figures 1 to 11As shown, the support frame 2 is fixedly equipped with a trigger device 20 corresponding to the position sensing device on the cleaning robot. The function of the trigger device 20 is: when the position sensing device on the cleaning robot senses the trigger device 20, it sends a position signal to the controller of the cleaning robot. The controller then controls the cleaning robot to stop moving forward, thereby preventing the cleaning robot from falling off the return platform 400 for cleaning photovoltaic modules. The position sensing device of the cleaning robot can be a photoelectric switch, ultrasonic sensor, magnetic sensor, limit switch, micro switch, etc., and the trigger device 20 is a matching trigger device used in conjunction with the above-mentioned position sensing device. Specifically, it can be selected according to the type of position sensing device.

[0034] The function of the mounting bracket 3 is as follows: the support rod 11 of the platform body 1 and the support crossbar 22 of the support frame 2 are arranged parallel to each other and perpendicular to the main shaft 200, and at least one of the support rod 11 and the support crossbar 22 is fixedly connected to the main shaft 200 through the mounting bracket 3. Specifically, there are three implementation methods:

[0035] Please refer to Figures 2 to 7 As shown, in a preferred embodiment, the mounting bracket 3 includes a first mounting bracket 31 and a second mounting bracket 32. The support rod 11 of the platform body 1 is fixedly connected to the main shaft 200 via the first mounting bracket 31, and the support crossbar 22 of the support frame 2 is fixedly connected to the main shaft 200 via the second mounting bracket 32. This invention preferably provides two sets of mounting brackets, that is, the stability of the structure is further improved by using the first mounting bracket 31 and the second mounting bracket 32.

[0036] In another embodiment (not shown), the mounting bracket 3 is simply the first mounting bracket 31. The support rod 11 of the platform body 1 is fixedly connected to the main shaft 200 via the first mounting bracket 31, thereby also fixing the support frame 2 to the main shaft 200.

[0037] In another embodiment (not shown), the mounting bracket 3 is simply the second mounting bracket 32. The support crossbar 22 of the support frame 2 is fixedly connected to the main shaft 200 via the second mounting bracket 32, thereby also fixing the platform body 1 to the main shaft 200.

[0038] Please refer to Figure 5 and Figure 6As shown, the first mounting bracket 31 includes a first support member 311 and a first connector 312 that are separately arranged and connected to each other. The second mounting bracket 32 ​​includes a second support member 321 and a second connector 322 that are separately arranged and connected to each other. The first connector 312 and the second connector 322 are one of the following: clamps, U-bolts, or through bolts. In a specific embodiment, the first connector 312 and the second connector 322 are clamps, therefore, the first connector 312 and the second connector 322 are fixedly installed side by side on the main shaft 200. In a specific embodiment, the first support member 311 is saddle-shaped, and the second support member 321 is a C-shaped steel. The first support member 311 is fixed to the support rod 11, and the second support member 321 is fixed to the support frame 2. The two sets of mounting brackets 3 arranged in this way, namely the first mounting bracket 31 and the second mounting bracket 32, can improve structural stability and also have the advantage of convenient assembly.

[0039] It should be noted that in other embodiments not shown, the first mounting bracket 31 only includes the first connector 312, and / or the second mounting bracket 32 ​​only includes the second connector 322. The first connector 312 directly fixes the support rod 11 to the spindle 200, and / or the second connector 322 directly fixes the support frame 2 to the spindle 200, thereby realizing the installation of the return platform 400 on the spindle 200.

[0040] In other embodiments not shown, the support frame 2 may be a rectangular, trapezoidal or other polygonal frame in addition to the U-shaped structure described above. This application does not limit the specific structure of the support frame 2, as long as it can fix the triggering device 20.

[0041] In other embodiments not illustrated, in addition to the open structure described above, the platform body 1 may also be a closed frame structure, or one or more supporting beams or diagonal braces may be added to the closed frame structure or open structure to improve the stability of the platform body 1, all of which are within the scope of protection of this application.

[0042] Please refer to Figures 1 to 11 And specifically refer to Figure 6 As shown, the return platform 400 of the cleaning robot for cleaning photovoltaic modules of this utility model also includes a purlin 4 fixed above the main shaft 200. The top of the purlin 4 is fixedly connected to the support rod 1, and the bottom of the purlin 4 is fixedly connected to the first support member 311. The purlin 4 ensures the stability of the connection between the support rod 11 and the main shaft 200.

[0043] Please continue to refer to Figure 10 and Figure 11As shown, the return platform 400 of the cleaning robot for cleaning photovoltaic modules of this utility model is also provided with multiple fastening components 5. The support rod 21 has an elongated hole 210 for one fastening component 5 to pass through. The extension direction of the elongated hole 210 is consistent with the length direction of the main shaft 200. In a specific embodiment, the fastening component 5 is a combination of a bolt 51 and a nut 52; in other embodiments, the fastening component 5 can also be a rivet or screw, etc. By providing the elongated hole 210, the return platform 400 of the cleaning robot for cleaning photovoltaic modules of this utility model can adjust the installation position of the support rod 21 on the second support member 321 according to actual conditions such as installation error, processing error, or different end lengths of the main shaft 200, which has the characteristic of flexibility.

[0044] Please refer to Figure 10 and Figure 11 The second support member 321 is fixedly connected to the support rod 21 via the fastening assembly 5. In this embodiment, as described above, the fastening assembly 5 includes a bolt 51 and a nut 52 that mates with the bolt 51. One end of the bolt 51 passes sequentially through the elongated hole 210 on the support rod 21 and the bolt hole on the upper surface of the second support member 321 corresponding to the elongated hole 210, and is then fastened by the nut 52, thereby achieving a fixed connection between the second mounting bracket 32 ​​and the support frame 2. Please refer to... Figure 11 The fastening component 5 can also be used for the adjustable mounting of the sensing device 20 on the support crossbar 22.

[0045] Please refer to Figure 11 The present invention also includes two nuts 8. The second connector 322 is a U-bolt, including a bent portion 3221 and two vertical portions 3222 extending parallel upward from the bent portion 3221. The two vertical portions 3222 pass through the bolt holes at the bottom of the second support member 321 and are fastened by the two nuts 8, thereby achieving a fixed connection with the second support member 321.

[0046] Please refer to Figure 10 and Figure 11 As shown, this utility model also includes two screws 9. The sensing device 20 is mounted on the support crossbar 22 and includes a first plate portion 201 and a second plate portion 202 integrally bent. The first plate portion 201 and the second plate portion 202 are arranged vertically and are generally L-shaped. The second plate portion 202 is fixedly connected to the support crossbar 22, thereby fixing the sensing device 20 on the support frame 2. A reinforcing member 6 is provided between the first plate portion 201 and the second plate portion 202. The reinforcing member 6 is fixedly connected to the first plate portion 201 and the second plate portion 202 by welding, riveting or bolting. In a specific embodiment, the reinforcing member 6 is a triangular plate. The two screws 9 are used to fix the first plate portion 201 and the second plate portion 202 to the two right-angled sides of the reinforcing member 6, thereby increasing the installation stability of the sensing device 20.

[0047] Please refer to Figures 1 to 11 As shown, several photovoltaic modules 500 are fixedly installed on the photovoltaic support 100. These photovoltaic modules 500 are arranged in a row between the parking platform 300 and the return platform 400 for the cleaning robot that cleans the photovoltaic modules. Please refer to the following for details. Figure 8 and Figure 9 As shown, a component connector 7 is also provided between the support rod 11 and the adjacent photovoltaic module 500. One end of the component connector 7 is fixedly connected to the support rod 11, and the other end of the component connector 7 is provided with a hook 71, which is used to hook the frame 501 of the photovoltaic module 500 adjacent to the support rod 11. This provides vertical and horizontal limits for the photovoltaic module 500, preventing vertical displacement caused by external strong winds or the weight of the robot. At the same time, by setting the component connector 7, the cleaning robot return platform 400 for cleaning the photovoltaic module is connected to the photovoltaic module 500 as a whole. This ensures that the cleaning robot can smoothly return to and from the cleaning robot return platform 400 for cleaning the photovoltaic module, while further improving the stability and wind resistance of the cleaning robot return platform 400 for cleaning the photovoltaic module.

[0048] The above embodiments are only used to illustrate the present utility model and are not intended to limit the technical solutions described in the present utility model. The understanding of the present utility model should be based on those skilled in the art. Although the present utility model has been described in detail with reference to the above embodiments, those skilled in the art should understand that they can still make modifications or equivalent substitutions to the present utility model. All technical solutions and improvements that do not depart from the spirit and scope of the present utility model should be covered within the scope of the claims of the present utility model.

Claims

1. A return platform for a cleaning robot for cleaning photovoltaic modules, suitable for mounting on the main shaft (200) of a photovoltaic support (100), characterized in that: The system includes a platform body (1), a support frame (2), a mounting bracket (3), and a triggering device (20). The platform body (1) and the support frame (2) are mounted above the portion of the main shaft (200) that extends out of the photovoltaic module (500). The triggering device (20) is fixed to the support frame (2). The support frame (2) is located on the side of the platform body (1) away from the photovoltaic module (500). At least one of the platform body (1) and the support frame (2) is fixedly connected to the main shaft (200) through the mounting bracket (3).

2. The return platform for the cleaning robot for cleaning photovoltaic modules as described in claim 1, characterized in that: The platform body (1) includes a support rod (11), two connecting rods (12) and two limiting rods (13). The support rod (11) is one and perpendicular to the main shaft (200). One end of each of the two connecting rods (12) is fixedly connected to the opposite ends of the same side of the support rod (11). Each connecting rod (12) is perpendicular to the support rod (11). The limiting rod (13) is perpendicularly connected to the other end of the connecting rod (12) and is set away from the main shaft (200).

3. The return platform for the cleaning robot for cleaning photovoltaic modules as described in claim 2, characterized in that: The mounting bracket (3) includes a first mounting bracket (31), and the platform body (1) is fixedly connected to the main shaft (200) through the first mounting bracket (31).

4. The return platform for the cleaning robot for cleaning photovoltaic modules as described in claim 3, characterized in that, The mounting bracket (3) includes a second mounting bracket (32), and the support frame (2) is fixedly connected to the main shaft (200) through the second mounting bracket (32).

5. The return platform for the cleaning robot for cleaning photovoltaic modules as described in claim 4, characterized in that: The first mounting bracket (31) includes a first support member (311) and a first connector (312) that are separately arranged and connected to each other. The second mounting bracket (32) includes a second support member (321) and a second connector (322) that are separately arranged and connected to each other. The first connector (312) and the second connector (322) are fixedly mounted side by side on the main shaft (200). The first support member (311) is fixed to the support rod (11), and the second support member (321) is fixed to the support frame (2).

6. The return platform for the cleaning robot for cleaning photovoltaic modules as described in claim 5, characterized in that: It also includes a purlin (4) fixed above the main shaft (200), the top of the purlin (4) being fixedly connected to the support rod (11), and the bottom of the purlin (4) being fixedly connected to the first support member (311).

7. The return platform for the cleaning robot for cleaning photovoltaic modules as described in claim 2, characterized in that: The support frame (2) includes two support longitudinal bars (21) and one support transverse bar (22). The two support longitudinal bars (21) are arranged in parallel relative to each other, and one end of each of the two support longitudinal bars (21) is fixedly connected to the support rod (11). The two ends of the support transverse bar (22) are respectively fixedly connected to the other ends of the two support longitudinal bars (21) away from the support rod (11) to form a U-shaped structure.

8. The return platform for the cleaning robot for cleaning photovoltaic modules as described in claim 7, characterized in that: The support rod (21) is provided with an elongated hole (210), and the extension direction of the elongated hole (210) is consistent with the length direction of the main shaft (200).

9. The return platform for the cleaning robot for cleaning photovoltaic modules as described in claim 7, characterized in that: The triggering device (20) is mounted on the support crossbar (22) and includes a first plate portion (201) and a second plate portion (202) formed by integral bending, with a reinforcing member (6) provided between the first plate portion (201) and the second plate portion (202).

10. The return platform for the cleaning robot for cleaning photovoltaic modules as described in claim 2, characterized in that: It also includes a component connector (7), on which a plurality of photovoltaic modules (500) are fixedly installed. One end of the component connector (7) is fixedly connected to the support rod (11), and the other end of the component connector (7) is provided with a hook (71), which is used to hook the frame (501) of the photovoltaic module (500) adjacent to the support rod (11).

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