Limiting walking mechanism and photovoltaic operation and maintenance device

Abstract

The utility model provides a limiting walking mechanism and a photovoltaic operation and maintenance device, and relates to the technical field of photovoltaic operation and maintenance. The walking assembly comprises a connecting piece and a walking wheel rotationally connected to the connecting piece, the connecting piece is connected to the rack, the walking wheel is sequentially provided with a walking part and a limiting part with the diameter smaller than that of the walking part, and the limiting part is provided with a limiting groove extending in the circumferential direction of the limiting part; the limiting assembly comprises a mounting piece and a limiting piece, the mounting piece is connected to the connecting piece and located on the side away from the walking part, the limiting piece is movably arranged on the mounting piece in the axial direction of the walking wheel and matched with the limiting part to form a limiting space, and a guide face is arranged on the side, close to the walking part, of the limiting piece; when the walking wheel moves from the photovoltaic panel to the steel cable, the guide face can guide the steel cable to be arranged in the limiting space, and the steel cable and the limiting groove are matched in a guiding and limiting mode. According to the limiting walking mechanism and the photovoltaic operation and maintenance device, the operation stability can be ensured, and the use cost is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of photovoltaic operation and maintenance, and in particular to a position-limiting walking mechanism and a photovoltaic operation and maintenance device. Background Art

[0002] During use, a large amount of dust and even a certain amount of snow will accumulate on the surface of photovoltaic panels. This dust and snow will affect the power generation efficiency of photovoltaic panels. Therefore, keeping the surface of photovoltaic panels clean is one of the effective means to maintain the conversion efficiency of solar photovoltaic panels. In response to the above situation, photovoltaic operation and maintenance devices are generally used to clean dust and snow on photovoltaic panels. In flexible photovoltaic brackets, photovoltaic panels are laid on steel strands. There are gaps between the steel cables / steel strands connecting the photovoltaic panels in adjacent strings. Therefore, when the photovoltaic operation and maintenance device is operating on the photovoltaic panels, it needs to use a walking mechanism to walk on the steel strands to reach the next photovoltaic panel. However, most existing walking mechanisms do not have limit assemblies. Therefore, there is a risk of displacement or falling when walking on the steel strands, which cannot ensure the smooth operation of the photovoltaic operation and maintenance device and cannot solve the pain points of flexible bracket operation and maintenance. Walking mechanisms with limit assemblies require a drive component to drive the limit assemblies to limit the walking mechanism. Although this can ensure the smooth operation of the photovoltaic operation and maintenance device, it has high energy consumption and a complex control system, resulting in increased cost of use. Utility Model Content

[0003] The purpose of the utility model is to provide a position-limiting walking mechanism and a photovoltaic operation and maintenance device, which can ensure stable operation and reduce usage costs.

[0004] To achieve this purpose, the present invention adopts the following technical solutions:

[0005] The limited travel mechanism is installed on a frame in a photovoltaic operation and maintenance device and is used to travel on a photovoltaic module, which includes a photovoltaic panel and a steel cable, and includes:

[0006] A walking assembly includes a connecting member and a walking wheel rotatably connected to the connecting member, the connecting member is connected to the frame, and along the axial direction of the walking wheel, the walking wheel is sequentially provided with a walking portion and a limiting portion with a diameter smaller than the walking portion, and the limiting portion is provided with a limiting groove extending along its circumference;

[0007] The limiting assembly includes a mounting member and a limiting member, wherein the mounting member is connected to the connecting member and is located on a side away from the walking portion, the limiting member is movably provided on the mounting member along the axial direction of the walking wheel, and cooperates with the limiting portion to form a limiting space, and a guide surface is provided on a side of the limiting member close to the walking portion;

[0008] When the traveling wheel moves from the photovoltaic panel to the steel cable, the guide surface can guide the steel cable to be placed in the limiting space, and enable the steel cable to cooperate with the limiting groove in a guiding and limiting manner.

[0009] As a further technical solution, the limiting member is configured to be rod-shaped, and the guide surface is configured at one end of the limiting member close to the walking part. In the direction from the mounting member to the walking part, the guide surface is configured to be a plane inclined toward the walking wheel axis.

[0010] As a further technical solution, the limiting component further includes an elastic reset member, the limiting member is connected to the mounting member via the elastic reset member, and the elastic reset member can be extended and retracted along the axial direction of the walking wheel.

[0011] As a further technical solution, the limiting assembly also includes a guide cylinder, the elastic return member is configured as a compression spring, the guide cylinder is sleeved on the compression spring and connected to the mounting member, and the two ends of the compression spring are respectively connected to the guide cylinder and the limiting member.

[0012] As a further technical solution, the limiting assembly also includes an avoidance auxiliary component, and the guide cylinder is connected to the mounting component through the avoidance auxiliary component, and the avoidance auxiliary component can drive the guide cylinder to move in a direction perpendicular to the axis of the walking wheel.

[0013] As a further technical solution, the avoidance auxiliary component is configured as a double-opening hinge.

[0014] As a further technical solution, the limiting assembly further includes at least one reinforcement member, which is fixedly arranged between the guide cylinder and the avoidance auxiliary member.

[0015] As a further technical solution, along the circumference of the limiting portion, the inner wall of the limiting groove is configured as a curved surface.

[0016] As a further technical solution, the walking assembly further includes a driving member, the driving member is connected to the connecting member, and the walking wheel is transmission-connected to the output shaft of the driving member.

[0017] A photovoltaic operation and maintenance device includes a frame, a cleaning component and a position-limiting walking mechanism. The cleaning component is arranged on the frame. A plurality of position-limiting walking mechanisms are provided, and the plurality of position-limiting walking mechanisms are connected to the frame at intervals.

[0018] Compared with the existing technology, the technical advantages of the limited travel mechanism and photovoltaic operation and maintenance device provided by the utility model are:

[0019] 1. The running wheel is provided with a running portion and a limiting portion along its axial direction, the limiting portion is provided with a limiting groove extending along its circumference, and the limiting member is movably arranged along the axial direction of the running wheel and cooperates with the limiting portion to form a limiting space. Furthermore, a guide surface is provided on the side of the limiting member near the running portion. Therefore, when the photovoltaic operation and maintenance device travels over the current photovoltaic panel via the running portion, it completes the cleaning of the current photovoltaic panel. When the photovoltaic operation and maintenance device completes the cleaning of the current photovoltaic panel, it moves on the steel cable with the help of the limiting portion to move to the next photovoltaic panel. Specifically, when the traveling wheel drops from the current photovoltaic panel to the steel cable, the steel cable first contacts the limiting member. Under the impact force between the two, the limiting member moves in the direction away from the traveling portion and guides the steel cable through the guide surface so that the steel cable is placed within the limited space. Under the action of the photovoltaic operation and maintenance device's own gravity, the limiting groove cooperates with the steel cable guide limit. After that, the limiting member is no longer affected by the impact force and returns to its original state, thereby limiting the steel cable located within the limited space. As the photovoltaic operation and maintenance device continues to operate, it moves along the length of the steel cable, thereby completing the movement of the photovoltaic operation and maintenance device from the current photovoltaic panel to the next photovoltaic panel. Throughout the entire process, the limiting member cooperates with the limiting portion to limit the relative position of the traveling wheel and the steel cable, thereby ensuring the stability of the traveling assembly when moving on the steel cable, and further ensuring the stable operation of the photovoltaic operation and maintenance device. The limiting member guides and limits the steel cable through its own structure without the need for external drive components or external control systems, thereby saving energy consumption and reducing usage costs.

[0020] 2. The frame is equipped with a cleaning component and multiple position-limiting travel mechanisms at intervals. Therefore, during the operation of the photovoltaic operation and maintenance device, the cleaning component cleans the photovoltaic panels, thereby ensuring the effectiveness of the photovoltaic operation and maintenance device. The multiple position-limiting travel mechanisms cooperate with each other to ensure the smooth operation of the photovoltaic operation and maintenance device on the photovoltaic panels. At the same time, when the photovoltaic operation and maintenance device moves from the current photovoltaic panel to the next photovoltaic panel via the steel cable, the smooth operation of the photovoltaic operation and maintenance device on the steel cable can also be guaranteed. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the following is a brief introduction to the drawings required for use in the description of the embodiments of the present invention. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on the contents of the embodiments of the present invention and these drawings without paying any creative work.

[0022] Figure 1 This is a schematic structural diagram of a position-limiting walking mechanism provided in an embodiment of the present utility model;

[0023] Figure 2It is a structural schematic diagram of the position-limiting walking mechanism provided by an embodiment of the utility model from another perspective.

[0024] In the picture:

[0025] 100, traveling assembly; 110, connecting member; 120, traveling wheel; 121, traveling portion; 122, limiting portion; 1221, limiting groove; 130, driving member;

[0026] 200, limit assembly; 210, mounting member; 220, limit member; 221, guide surface; 230, elastic reset member; 240, guide cylinder; 250, avoidance auxiliary member; 260, reinforcement member. DETAILED DESCRIPTION

[0027] Before any embodiments of the present application are explained in detail, it is to be understood that the application is not limited in its application to the details of construction and the arrangement of components set forth in the following description or illustrated in the foregoing drawings.

[0028] In this application, the terms "comprises," "includes," "has," or any other variations thereof are intended to encompass non-exclusive inclusion, such that a process, method, article, or apparatus that includes a list of elements includes not only those elements but also other elements not explicitly listed, or elements inherent to such process, method, article, or apparatus. In the absence of further limitations, an element defined by the phrase "comprising a ..." does not preclude the presence of additional identical elements in the process, method, article, or apparatus that includes the element.

[0029] In this application, the term "and / or" describes a relationship between related objects, indicating that three possible relationships exist. For example, "A and / or B" can represent: A exists alone, A and B exist simultaneously, or B exists alone. Additionally, the character " / " in this application generally indicates that the related objects are in an "and / or" relationship.

[0030] In this application, the terms "connect," "combine," "couple," and "install" may refer to direct connection, combination, coupling, or installation, or indirect connection, combination, coupling, or installation. For example, a direct connection refers to two parts or components being connected together without an intermediary, and an indirect connection refers to two parts or components being connected to at least one intermediary, with the two parts or components being connected via the intermediary. Furthermore, "connect" and "couple" are not limited to physical or mechanical connections or couplings and may include electrical connections or couplings.

[0031] In this application, it will be understood by those skilled in the art that relative terms (e.g., "about," "approximately," "substantially," etc.) used in conjunction with quantities or conditions include the values ​​and have the meaning indicated by the context. For example, the relative terms include at least the degree of error associated with the measurement of a specific value, the tolerance caused by manufacturing, assembly, use, etc. associated with a specific value. Such terms should also be considered to disclose a range defined by the absolute values ​​of the two endpoints. Relative terms may refer to plus or minus a certain percentage (e.g., 1%, 5%, 10% or more) of the indicated value. Numerical values ​​that do not use relative terms should also be disclosed as specific values ​​with tolerances. In addition, "substantially" may refer to plus or minus a certain degree (e.g., 1 degree, 5 degrees, 10 degrees or more) on the basis of the indicated angle when expressing a relative angular position relationship (e.g., substantially parallel, substantially perpendicular).

[0032] In this application, it will be understood by those skilled in the art that the function performed by an assembly can be performed by one assembly, multiple assemblies, one part, or multiple parts. Similarly, the function performed by a part can also be performed by one part, one assembly, or a combination of multiple parts.

[0033] In the present application, the terms "upper", "lower", "left", "right", "front", "back" and other directional words are described based on the orientation and positional relationship shown in the accompanying drawings, and should not be understood as limiting the embodiments of the present application. In addition, in the context, it is also necessary to understand that when it is mentioned that an element is connected to another element "upper" or "lower", it can not only be directly connected to the other element "upper" or "lower", but also be indirectly connected to the other element "upper" or "lower" through an intermediate element. It should also be understood that directional words such as upper side, lower side, left side, right side, front side, back side, etc. not only represent the positive orientation, but can also be understood as the lateral orientation. For example, below can include directly below, lower left, lower right, lower front and lower back, etc.

[0034] Combine Figure 1 and Figure 2As shown, the position-limiting walking mechanism provided in this embodiment is installed in the photovoltaic operation and maintenance device, and is used to walk on the photovoltaic module. When the position-limiting walking mechanism and the photovoltaic operation and maintenance device are in place, the smooth operation can be ensured and the cost of use can be reduced. In this embodiment, the photovoltaic module includes a photovoltaic panel and a steel cable. Specifically, the position-limiting walking mechanism includes a walking component 100 and a position-limiting component 200; the walking component 100 includes a connecting member 110 and a walking wheel 120 rotatably connected to the connecting member 110, the connecting member 110 is connected to the photovoltaic operation and maintenance device, and along the axial direction of the walking wheel 120, the walking wheel 120 is sequentially provided with a walking portion 121 and a position-limiting portion 122 having a diameter smaller than that of the walking portion 121, and the position-limiting portion 122 is provided with a position-limiting groove 1221 extending along its circumference; the position-limiting component 200 includes a mounting member 210 and The limiting member 220 and the mounting member 210 are connected to the connecting member 110 and are located on the side away from the walking portion 121. The limiting member 220 is movably arranged on the mounting member 210 along the axial direction of the walking wheel 120, and cooperates with the limiting portion 122 to form a limiting space. A guide surface 221 is provided on the side of the limiting member 220 close to the walking portion 121; when the walking wheel 120 moves from the photovoltaic panel to the steel cable, the guide surface 221 can guide the steel cable to be placed in the limiting space, and make the steel cable cooperate with the limiting groove 1221 for guidance and limitation.

[0035] Because the running wheel 120 is provided with a running portion 121 and a limiting portion 122 along its axial direction, and the limiting portion 122 is provided with a limiting groove 1221 extending along its circumferential direction, the limiting member 220 is movably arranged along the axial direction of the running wheel 120 and cooperates with the limiting portion 122 to form a limiting space, and the limiting member 220 is provided with a guide surface 221 on the side close to the running portion 121. Therefore, when the photovoltaic operation and maintenance device travels on the current photovoltaic panel via the running portion 121, it completes the cleaning of the current photovoltaic panel; when the photovoltaic operation and maintenance device completes the cleaning of the current photovoltaic panel, it moves on the steel cable with the help of the limiting portion 122 to move to the next photovoltaic panel. Specifically, when the walking wheel 120 falls from the current photovoltaic panel to the steel cable, the steel cable first contacts the limiter 220, and under the impact force between the two, the limiter 220 moves in the direction away from the walking part 121, and guides the steel cable through the guide surface 221, so that the steel cable is placed in the limit space, and under the action of the self-gravity of the photovoltaic operation and maintenance device, the limiter groove 1221 cooperates with the steel cable guide limit; thereafter, the limiter 220 is no longer affected by the impact force and returns to its original state, thereby limiting the steel cable located in the limit space; as the photovoltaic operation and maintenance device continues to operate, it moves on the steel cable along the length direction of the steel cable, thereby completing the movement of the photovoltaic operation and maintenance device from the current photovoltaic panel to the next photovoltaic panel. During the entire process, the limiting member 220 cooperates with the limiting portion 122 to limit the relative position of the walking wheel 120 and the steel cable, thereby ensuring the stability of the walking component 100 when moving on the steel cable, and further ensuring the smooth operation of the photovoltaic operation and maintenance device; and the limiting member 220 guides and limits the steel cable through its own structure without the aid of an external drive member 130 or an external control system, thereby saving energy consumption and reducing usage costs.

[0036] Specifically, in this embodiment, the limiting member 220 is configured as a rod, and the guide surface 221 is provided at one end of the limiting member 220 close to the walking portion 121. In the direction from the mounting member 210 to the walking portion 121, the guide surface 221 is configured as a plane inclined toward the axis of the walking wheel 120, so as to further enhance the guiding effect of the steel cable so that the steel cable can be better placed within the limited space. In other embodiments, according to actual needs, the guide surface 221 is configured as a curved surface inclined toward the axis of the walking wheel 120 in the direction from the mounting member 210 to the walking portion 121, and the curved surface can be configured to be concave in the direction close to the axis of the walking wheel 120, or it can be configured to be convex outward away from the axis of the walking wheel 120.

[0037] Preferably, the limiting assembly 200 further includes an elastic return member 230, through which the limiting member 220 is connected to the mounting member 210, and the elastic return member 230 is capable of extending and contracting along the axial direction of the running wheel 120. When the running wheel 120 falls from the current photovoltaic panel to the steel cable, the steel cable first contacts the limiting member 220. Under the impact force between the limiting member 220 and the limiting member 220, the limiting member 220 moves away from the running portion 121, and the elastic return member 230 is compressed toward the mounting member 210. After the steel cable is placed in the limited space, the limiting member 220 and the elastic return member 230 are no longer subjected to external forces. At this time, the elastic return member 230 automatically extends in the direction away from the mounting member 210, thereby driving the limiting member 220 to move toward the running portion 121, until the elastic return member 230 returns to its original state, and the limiting member 220 limits the steel cable in the limited space. During the entire process, due to the provision of a reset member, it is ensured that when the limit member 220 is subjected to impact force, it can autonomously restore to its original state and limit the steel cable in the limit space under the action of the elastic reset member 230 without the need for human assistance and the need for an external drive member 130. This ensures the smooth operation of the walking wheel 120 while improving the ease of use of the limit assembly 200, saving energy consumption and reducing usage costs.

[0038] Preferably, the limiting assembly 200 further includes a guide cylinder 240. The elastic return member 230 is configured as a compression spring. The guide cylinder 240 is sleeved on the compression spring and connected to the mounting member 210. The ends of the compression spring are respectively connected to the guide cylinder 240 and the limiting member 220. The guide cylinder 240 guides and limits the compression spring, preventing the compression spring from bending or shifting under the action of impact forces during compression or autonomous extension, thereby ensuring that the limiting member 220 has the guiding and limiting effect on the steel cable.

[0039] Preferably, the limiting assembly 200 further includes an avoidance auxiliary component 250 , and the guide cylinder 240 is connected to the mounting component 210 via the avoidance auxiliary component 250 . The avoidance auxiliary component 250 can drive the guide cylinder 240 to move in a direction perpendicular to the axis of the walking wheel 120 .

[0040] Since other auxiliary components may be provided on the steel cable, the limiting member 220 may interfere with other auxiliary components on the steel cable when the running wheel 120 is running on the steel cable, causing the running wheel 120 to fall off the steel cable, etc. In the present application, since the guide cylinder 240 is connected to the mounting member 210 via the avoidance auxiliary member 250, when the limiting member 220 encounters other auxiliary components during the operation of the running wheel 120, as the running wheel 120 continues to operate, the avoidance auxiliary member 250 drives the guide cylinder 240 to move away from the other auxiliary components, thereby driving the limiting member 220 to avoid the other auxiliary components, thereby ensuring the smooth operation of the running wheel 120 and preventing the running wheel 120 from falling off the steel cable due to other auxiliary components.

[0041] Preferably, the avoidance auxiliary member 250 is configured as a double-open hinge. This allows the guide cylinder 240 to rotate clockwise or counterclockwise around the mounting member 210, thereby driving the limiting member 220 to avoid other auxiliary components on the cable, thereby ensuring smooth operation of the running wheel 120 when moving forward or backward on the cable. After the guide cylinder 240 and the limiting member 220 have avoided other auxiliary components on the cable, the guide cylinder 240 rotates around the mounting member 210 to its original position, continuing to limit the relative position of the running wheel 120 and the limiting member 220. The double-open hinge is configured with reference to the prior art and will not be described in detail here.

[0042] Preferably, the position limiting assembly 200 further includes at least one reinforcement member 260, which is fixedly disposed between the guide cylinder 240 and the avoidance auxiliary member 250. The provision of the reinforcement member 260 improves the connection strength and stability between the guide cylinder 240 and the avoidance auxiliary member 250, thereby extending the service life of the position limiting assembly 200 and the position limiting travel mechanism.

[0043] Since the cross-section of the steel cable is generally circular, in this embodiment, along the circumference of the limiting portion 122, the inner wall of the limiting groove 1221 is set to a curved surface that matches the steel cable, so that when the steel cable is placed in the limiting space, it is ensured that the steel cable and the limiting groove 1221 fit better, thereby further ensuring the stability of the walking wheel 120 when walking on the steel cable.

[0044] Preferably, the travel assembly 100 further includes a driver 130, which is connected to the connector 110, and the travel wheel 120 is transmission-connected to the output shaft of the driver 130. Thus, during operation of the photovoltaic operation and maintenance device, the driver 130 drives the travel wheel 120 to rotate, thereby controlling the speed and operating time of the travel wheel 120, ensuring the compatibility of the travel wheel 120 with the photovoltaic operation and maintenance device, and further improving operational stability.

[0045] The photovoltaic operation and maintenance device includes a frame (not shown in the figure), a cleaning component (not shown in the figure) and a position-limiting walking mechanism. The cleaning component is arranged on the frame, and multiple position-limiting walking mechanisms are provided, and the multiple position-limiting walking mechanisms are connected to the frame at intervals.

[0046] Because the frame is equipped with a cleaning component and multiple spaced-apart travel mechanisms, the cleaning component cleans the photovoltaic panels during operation, thereby ensuring the effectiveness of the photovoltaic operation and maintenance device. The multiple spaced-apart travel mechanisms cooperate with each other to ensure the smooth operation of the photovoltaic operation and maintenance device on the photovoltaic panels. At the same time, when the photovoltaic operation and maintenance device moves from the current photovoltaic panel to the next photovoltaic panel via the steel cable, the smooth operation of the photovoltaic operation and maintenance device on the steel cable can also be ensured. The frame and cleaning component are not the technical focus of this solution and will not be discussed here. For details, please refer to the existing technical settings.

[0047] Obviously, the above-described embodiments of the present invention are merely examples for the purpose of clearly illustrating the present invention and are not intended to limit the manner in which the present invention is to be implemented. A person skilled in the art would be able to make various obvious changes, readjustments, and substitutions without departing from the scope of protection of the present invention. It is not necessary and impossible to enumerate all embodiments here. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present invention shall be included within the scope of protection of the claims of the present invention.

Claims

1. A limited travel mechanism, installed on a frame in a photovoltaic operation and maintenance device, used to travel on a photovoltaic module, wherein the photovoltaic module includes a photovoltaic panel and a steel cable, and is characterized in that: include: A walking assembly (100) comprises a connecting member (110) and a walking wheel (120) rotatably connected to the connecting member (110), wherein the connecting member (110) is connected to the frame, and along the axial direction of the walking wheel (120), the walking wheel (120) is sequentially provided with a walking portion (121) and a limiting portion (122) having a diameter smaller than that of the walking portion (121), and the limiting portion (122) is provided with a limiting groove (1221) extending along its circumference; A limiting assembly (200) comprises a mounting member (210) and a limiting member (220), wherein the mounting member (210) is connected to the connecting member (110) and is located on a side away from the walking portion (121), the limiting member (220) is movably arranged on the mounting member (210) along the axial direction of the walking wheel (120), and cooperates with the limiting portion (122) to form a limiting space, and a guide surface (221) is provided on a side of the limiting member (220) close to the walking portion (121); When the traveling wheel (120) moves from the photovoltaic panel to the steel cable, the guide surface (221) can guide the steel cable to be placed in the limiting space, and enable the steel cable to cooperate with the limiting groove (1221) in a guiding and limiting manner.

2. The position-limiting walking mechanism according to claim 1, characterized in that: The limiting member (220) is configured to be rod-shaped, and the guide surface (221) is configured at one end of the limiting member (220) close to the walking portion (121). In the direction from the mounting member (210) to the walking portion (121), the guide surface (221) is configured to be a plane inclined toward the axis of the walking wheel (120).

3. The position-limiting walking mechanism according to claim 1, characterized in that: The limiting component (200) further comprises an elastic reset member (230), the limiting member (220) is connected to the mounting member (210) via the elastic reset member (230), and the elastic reset member (230) is capable of extending and retracting along the axial direction of the walking wheel (120).

4. The position-limiting walking mechanism according to claim 3, characterized in that: The limiting assembly (200) further includes a guide cylinder (240), the elastic reset member (230) is configured as a compression spring, the guide cylinder (240) is sleeved on the compression spring and connected to the mounting member (210), and the two ends of the compression spring are respectively connected to the guide cylinder (240) and the limiting member (220).

5. The position-limiting walking mechanism according to claim 4, characterized in that: The limiting assembly (200) further includes an avoidance auxiliary component (250), the guide cylinder (240) is connected to the mounting component (210) via the avoidance auxiliary component (250), and the avoidance auxiliary component (250) can drive the guide cylinder (240) to move in a direction perpendicular to the axial direction of the walking wheel (120).

6. The position-limiting walking mechanism according to claim 5, characterized in that: The avoidance auxiliary component (250) is configured as a double-opening hinge.

7. The position-limiting travel mechanism according to claim 5, characterized in that: The limiting assembly (200) further includes at least one reinforcing member (260), wherein the reinforcing member (260) is fixedly disposed between the guide cylinder (240) and the avoidance auxiliary member (250).

8. The position-limiting walking mechanism according to any one of claims 1 to 7, characterized in that: Along the circumference of the limiting portion (122), the inner wall of the limiting groove (1221) is configured as a curved surface.

9. The position-limiting walking mechanism according to claim 8, characterized in that: The walking assembly (100) further comprises a driving member (130), wherein the driving member (130) is connected to the connecting member (110), and the walking wheel (120) is transmission-connected to an output shaft of the driving member (130).

10. Photovoltaic operation and maintenance device, characterized in that: It comprises a frame, a cleaning component and the position-limiting walking mechanism according to any one of claims 1 to 9, wherein the cleaning component is arranged on the frame, and a plurality of the position-limiting walking mechanisms are provided, and the plurality of the position-limiting walking mechanisms are connected to the frame at intervals.

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