Automatic leveling device and method applied to 10kV live working scaffold

Abstract

The invention discloses an automatic leveling device and method applied to a 10kV hot-line work scaffold, belongs to the field of scaffolds, and solves the problem that the scaffold in the prior art is inconvenient to level, and the technical scheme for solving the problem comprises a base and an insulating frame body arranged on the base, the base is provided with a control part and at least two groups of supporting legs arranged diagonally, at least one supporting leg in each group of two supporting legs arranged diagonally is provided with a driver for driving the supporting leg to lift, and the base is further provided with a horizon sensor for detecting the levelness of the base, generating an electric signal and transmitting the electric signal to the control part. The control piece judges the inclination state of the base according to the received electric signals and controls the driver of one supporting leg arranged diagonally to act so that the base can be leveled. The scaffold can be leveled more conveniently.

Description

Technical Field

[0001] This invention relates to the field of scaffolding technology, and in particular to an automatic leveling device and method for 10kV live-line working scaffolding. Background Technology

[0002] Insulated scaffolding devices commonly used in the live-line working industry are mostly suitable for complex terrains that live-line working vehicles cannot directly reach, such as steps, slopes, and uneven ground. Because the connection angle between the horizontal and diagonal braces of the scaffolding and the supporting legs is fixed, the scaffolding erected in this situation will tilt. To address this, existing technologies, such as patents CN107288329A and CN221143492U, disclose leveling scaffolding. By setting the supporting legs to be retractable, operators manually adjust the extension length of each supporting leg one by one, relying on visual observation to judge the leveling status. The adjustment process is cumbersome, time-consuming, requires repeated trial and error, and is inefficient. Summary of the Invention

[0003] The purpose of this invention is to provide an automatic leveling device for 10kV live-line working scaffolding, which solves the problem of inconvenient scaffolding leveling in the prior art and makes scaffolding leveling more convenient.

[0004] To achieve the above objectives, the present invention adopts the following technical solution: an automatic leveling device for 10kV live-line working scaffolding, comprising a base and an insulating frame mounted on the base, wherein the base is provided with a control component and at least two sets of diagonally arranged support legs, at least one of the two diagonally arranged support legs in each set is provided with a driver for driving the support leg to rise and fall, and the base is also provided with a level sensor for detecting the levelness of the base and generating an electrical signal that is transmitted to the control component, wherein the control component determines the tilt state of the base based on the received electrical signal and controls the driver of one of the diagonally arranged support legs to actuate, so as to level the base.

[0005] After adopting the above technical solution, the present invention has the following advantages: First, it simplifies the structure. In each set of diagonal support legs, only one leg is equipped with a driver, while the other leg is fixed or passively supported. This avoids redundant multi-drive design as much as possible, reduces equipment cost and weight, and facilitates transportation and rapid deployment in complex terrain. Second, the control logic is clear and reliable. The control unit triggers only a single driver action based on the horizontal sensor signal. With the diagonal as the rotation axis, the base tilts and corrects itself through single-point vertical displacement. This avoids signal synchronization, action conflict, or adjustment oscillation problems caused by multi-point coordination as much as possible, thus improving system stability. Secondly, it boasts high leveling efficiency and ease of use, eliminating the need for manual adjustment of each support leg. It features fully automatic closed-loop control for detection, judgment, and execution, allowing for leveling with a single button press, significantly reducing work time and manpower dependence. Finally, it adapts to the special environments of live-line work. The diagonal connection column layout between the insulated frame and the base ensures uniform stress distribution and structural stability during leveling, making it particularly suitable for complex ground surfaces such as steps and slopes with discontinuous support surfaces. This effectively solves the problem of tilting caused by fixed cross brace angles, greatly improving the convenience and reliability of 10kV live-line work while ensuring safety.

[0006] Furthermore, the base is provided with connecting posts for connecting to the insulating frame, and the connecting posts are arranged diagonally.

[0007] By adopting the aforementioned technical solution, the connecting columns are arranged diagonally, which can form a synergistic mechanical layout with the diagonal support structure of the base, improve the overall structural stability, and effectively transfer the load of the insulating frame to the support legs along the diagonal direction, thereby reducing eccentric stress.

[0008] Furthermore, the connecting column and the supporting leg are located on the same diagonal line of the base.

[0009] By adopting the aforementioned technical solution, the connecting column and the supporting leg are located on the same diagonal line of the base, which can make the connection point of the insulating frame coincide with the leveling action line of the supporting leg, reduce lever arm offset, reduce torsional stress, and improve structural rigidity and leveling accuracy.

[0010] Furthermore, the support leg includes a multi-stage sleeved rod, and the driver drives the rod to extend and retract axially.

[0011] Through the above technical solution, the support leg adopts a multi-stage sleeve rod structure, which can realize a large stroke extension and retraction, adapt to the height adjustment needs under complex terrain, and at the same time, the axial extension and retraction movement structure is stable, has good guidance, and strong load-bearing capacity, and can achieve more precise leveling in conjunction with the actuator.

[0012] Furthermore, the driver includes a linear motor with an extension shaft that is fixedly connected to the rod of the support leg.

[0013] Through the above technical solution, the linear output force acts directly on the support leg rod, without intermediate transmission gaps, resulting in high transmission efficiency.

[0014] Furthermore, the level sensor is located at the center of the base, and the base is provided with an indicator light or display screen for displaying the leveling status.

[0015] With the above technical solution, the level sensor is located at the center of the base, which can more accurately reflect the overall level of the base, avoid deviations caused by edge measurements as much as possible, and improve the leveling detection accuracy; the indicator light or display screen is used to display the leveling status in real time, which makes it easier for operators to quickly judge the working status of the device and improves the convenience and safety of operation.

[0016] Furthermore, the base is also provided with a linkage arm, the two ends of which are respectively hinged to the base and the support leg, and the two ends of the driver are respectively hinged to the base and the support leg. The hinge point between the linkage arm and the base is located outside the hinge point between the linkage arm and the support leg, and the hinge point between the driver and the base is located inside the hinge point between the linkage arm and the base.

[0017] Through the above technical solution, by setting the hinge point between the linkage arm and the base outside the hinge point between the linkage arm and the support leg, the linkage arm is arranged in an outward tilt. When the support leg is raised and lowered under the action of the actuator, the linkage arm will constrain it to move along a specific arc, thereby generating a horizontal component force pointing towards the center of the base during the upward movement of the support leg, effectively resisting the overturning tendency of the base and improving overall stability. At the same time, the hinge point between the actuator and the base is located inside the hinge point of the linkage arm, which optimizes the force transmission path, makes the force on the actuator more reasonable, reduces the resistance and stress concentration during the movement, improves the transmission efficiency and structural reliability, and achieves the synergistic optimization of active anti-overturning and smooth driving during the leveling process.

[0018] Furthermore, when the support leg is at its initial height and the base is horizontal, the angle β between the linkage arm and the vertical line is 15° to 30°.

[0019] By employing the aforementioned technical solution and rationally setting the angle between the linkage arm and the vertical line, the linkage arm generates a sufficiently large horizontal component force, effectively counteracting the overturning tendency of the base and significantly improving the active stability during the leveling process. If the angle β is less than 15°, the linkage arm is too close to the vertical state, and the generated horizontal component force is too small to effectively resist the overturning moment. If the angle β is greater than 30°, although the horizontal component force increases, the actuator needs to overcome significantly increased lever resistance and horizontal displacement, resulting in a dramatic increase in the required driving force and excessive stroke. This not only requires the selection of larger-specification power components, increasing costs and energy consumption, but also causes stress concentration at the hinge points, exacerbating structural wear, reducing system rigidity and motion stability, and occupying more installation space, which is not conducive to overall integration.

[0020] Another object of the present invention discloses an automatic leveling method for 10kV live-line working scaffolding, including the automatic leveling device for 10kV live-line working scaffolding described in any of the above technical solutions, wherein the automatic leveling method for 10kV live-line working scaffolding includes:

[0021] S1: The level sensor detects the levelness of the base in real time and generates an electrical signal;

[0022] S2: The control unit receives an electrical signal and determines whether the tilt angle is greater than the preset leveling start threshold. If so, it proceeds to S3; otherwise, it returns to S1.

[0023] S3: The control unit controls the actuator of one of the diagonally positioned support legs according to the tilt direction, thereby adjusting the height of the support leg;

[0024] S4: The level sensor continuously monitors the level of the base. When the tilt angle is less than or equal to the preset leveling stop threshold, the driver stops and the leveling is completed.

[0025] The above technical solution enables one-click start-up and automatic leveling without manual intervention, significantly improving work efficiency and safety. Preset start and stop thresholds are used to avoid frequent false triggering and oscillation adjustment, improving control stability. Continuous closed-loop monitoring ensures leveling accuracy. Only one support leg is adjusted diagonally, making the control logic simple and reliable. It is particularly suitable for rapid deployment and precise leveling of 10kV live-line work in complex terrain.

[0026] Another object of the present invention discloses an automatic leveling method for 10kV live-line working scaffolding, including the automatic leveling device for 10kV live-line working scaffolding described in any of the above technical solutions, wherein the automatic leveling method for 10kV live-line working scaffolding includes:

[0027] S1: The level sensor detects the levelness of the base in real time and generates an electrical signal;

[0028] S2: The controller receives an electrical signal and determines whether the tilt angle is greater than the preset start threshold. If it is, it proceeds to S3; otherwise, it returns to S1.

[0029] S3: The controller controls the actuator of the diagonally positioned support legs according to the tilt direction, and adjusts the height of the diagonally positioned support legs to keep the base level. During the adjustment process, the linkage arm constrains the support legs to move along the arc, generating a horizontal component force pointing towards the center of the base to resist overturning.

[0030] S4: The horizontal sensor continuously monitors the base status. When the tilt angle is less than or equal to the preset stop threshold, the driver action is stopped, and leveling is completed.

[0031] Through the above technical solution, the base posture is monitored in real time by a horizontal sensor. The controller intelligently judges the tilt direction and initiates the leveling action, intervening only when the tilt exceeds a preset threshold, thus minimizing frequent malfunctions and improving system stability. The diagonal support legs are used for coordinated adjustment, which can achieve force balance and posture stability of the base during the leveling process, minimizing local force concentration and posture changes caused by single-leg or sequential leveling. During the adjustment process, the linkage arm constrains the support legs to move along a specific arc, actively generating a horizontal component force pointing towards the center of the base, effectively counteracting the overturning tendency and enhancing the overall stability and anti-interference capability of the support system. Attached Figure Description

[0032] The present invention will be further described below with reference to the accompanying drawings:

[0033] Figure 1 This is a schematic diagram of the structure of the automatic leveling device for 10kV live-line working scaffolding according to Embodiment 1 of the present invention;

[0034] Figure 2 This is a schematic diagram of the base structure according to Embodiment 1 of the present invention;

[0035] Figure 3 This is a schematic diagram of the base from another perspective of Embodiment 1 of the present invention;

[0036] Figure 4 This is a schematic diagram of the base from other perspectives in Embodiment 1 of the present invention;

[0037] Figure 5 This is a schematic diagram of the base structure according to Embodiment 3 of the present invention;

[0038] Figure 6 This is a schematic diagram of the base leveling in Embodiment 3 of the present invention;

[0039] In the diagram, 10 is the base; 11 is the control unit; 12 is the support leg; 13 is the driver; 14 is the level sensor; 15 is the connecting column; 16 is the linkage arm; and 20 is the insulating frame. Detailed Implementation

[0040] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments.

[0041] The terms "first," "second," "third," "fourth," etc. (if present) in the specification, claims, and accompanying drawings of this invention are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence. It should be understood that such data can be interchanged where appropriate so that embodiments of the invention described herein can be implemented in sequences other than those illustrated or described herein.

[0042] It should be understood that in the various embodiments of the present invention, the number of each process does not imply the order of execution. The execution order of each process should be determined by its function and internal logic, and should not constitute any limitation on the implementation process of the embodiments of the present invention.

[0043] It should be understood that in this invention, "comprising" and "having," and any variations thereof, are intended to cover non-exclusive inclusion, for example, a process, method, system, product, or device that includes a series of steps or units is not necessarily limited to those steps or units that are explicitly listed, but may include other steps or units that are not explicitly listed or that are inherent to such process, method, product, or device.

[0044] It should be understood that in this invention, "multiple" refers to two or more. "And / or" is merely a description of the relationship between related objects, indicating that three relationships can exist. For example, X and / or Y can represent: X alone, X and Y simultaneously, or Y alone. The character " / " generally indicates that the preceding and following related objects are in an "or" relationship. "Contains X, Y, and Z", "Contains X, Y, and Z" means that all three X, Y, and Z are contained; "Contains X, Y, or Z" means that one of X, Y, and Z is contained; "Contains X, Y, and / or Z" means that any one, two, or three of X, Y, and Z are contained.

[0045] The technical solution of the present invention will be described in detail below with reference to specific embodiments. The following specific embodiments may be combined or substituted with each other according to the actual situation, and the same or similar concepts or processes may not be described again in some embodiments.

[0046] like Figures 1 to 4As shown, the present invention provides an automatic leveling device for 10kV live-line working scaffolding, including a base 10 and an insulating frame 20 disposed on the base 10. The base 10 is provided with a control unit 11 and at least two sets of diagonally arranged support legs 12. At least one of the two diagonally arranged support legs 12 in each set is provided with a driver 13 for driving the support leg 12 to rise and fall. The base 10 is also provided with a level sensor 14 for detecting the levelness of the base 10 and generating an electrical signal that is transmitted to the control unit 11. The control unit 11 determines the tilt state of the base 10 based on the received electrical signal and controls the driver 13 of one of the diagonally arranged support legs to operate so as to level the base 10.

[0047] First, the structure is simplified. In each set of diagonal support legs 12, only one leg has a driver 13, while the other leg is fixed or passively supported. This minimizes redundant multi-drive design, reducing equipment cost and weight, and facilitating transport and rapid deployment in complex terrain. Second, the control logic is clear and reliable. The control unit 11 triggers only a single driver 13 based on the signal from the level sensor 14. Rotating around the diagonal axis, the base 10 is tilted and corrected through single-point vertical displacement. This minimizes signal synchronization, action conflicts, or adjustment oscillations caused by multi-point coordination, improving system stability. Third, the leveling efficiency is relatively high. The height is high, making leveling more convenient. There is no need for manual adjustment of each support leg 12. It realizes fully automatic closed-loop control of detection, judgment and execution. Leveling can be completed with one-button start, significantly reducing operation time and reliance on manpower. Finally, it is adapted to the special environment of live work. Combined with the diagonal connection column 15 layout of the insulating frame 20 and the base 10, it ensures that the frame is evenly stressed and the structure is stable during the leveling process. It is especially suitable for complex ground with discontinuous support surfaces such as steps and slopes. It effectively solves the problem of tilting caused by the fixed angle of the cross brace. Under the premise of ensuring safety, it greatly improves the convenience and reliability of 10kV live work.

[0048] It should be noted that the base 10 and the insulating frame 20 are detachably connected. They can be quickly installed and fixed with insulating frames 20 of different specifications through the connecting column 15, so that the same base 10 can be used for various insulating scaffolding structures, and is also convenient for transportation and on-site assembly.

[0049] Preferably, in each set of two diagonally arranged support legs 12, only one support leg 12 is equipped with a driver 13, while the other support leg 12 is fixed and its height cannot be adjusted.

[0050] The support leg 12 includes a multi-stage sleeved rod. The driver 13 drives the rod to move axially and extend, which can achieve a large stroke extension and extension to adapt to the height adjustment needs under complex terrain. At the same time, the axial extension and extension movement structure is stable, has good guidance, and strong load-bearing capacity, and works with the driver 13 to achieve more precise leveling.

[0051] The driver 13 includes a linear motor with an extension shaft. The extension shaft is fixedly connected to the rod of the support leg 12. The linear output force acts directly on the rod of the support leg 12 without intermediate transmission gap, resulting in higher transmission efficiency.

[0052] Preferably, the extension shaft travel range of the linear motor is 100mm to 250mm. This ensures sufficient adjustability while avoiding excessive travel that could lead to structural instability, balancing leveling range and support rigidity to ensure safe and reliable operation of the device. If the extension shaft travel of the linear motor is less than 100mm, the adjustment range is too small to adapt to height differences in complex terrains such as steps and slopes, resulting in ineffective leveling. If the extension shaft travel of the linear motor is greater than 250mm, the structure becomes too long, stability decreases, and bending deformation is likely to occur, increasing the drive load and affecting response speed and safety. It also increases the overall height of the device, which is detrimental to transportation and on-site deployment.

[0053] It should be noted that, in addition to linear motors, the driver 13 can also use a servo motor in conjunction with a ball screw structure, or a hydraulic cylinder or a pneumatic cylinder as a power source to realize the lifting and lowering adjustment of the support leg 12.

[0054] To enable users to obtain timely adjustment progress, the base 10 is equipped with indicator lights to display the leveling status, which makes it easy for operators to quickly judge the working status of the device and improves the convenience and safety of operation.

[0055] The base 10 is provided with connecting columns 15 for connecting to the insulating frame 20. The connecting columns 15 are arranged diagonally. The diagonal arrangement of the connecting columns 15 can form a synergistic mechanical layout with the diagonal support structure of the base 10, improve the overall structural stability, and effectively transfer the load of the insulating frame 20 to the support leg 12 along the diagonal direction, reducing eccentric stress.

[0056] It should be noted that corresponding screw holes are designed on the connecting column 15 and the insulating frame 20 for fixing with high-strength bolts. This method is simple and reliable, facilitating quick on-site installation and disassembly, and allowing adjustment of the position of the insulating frame 20 as needed. Alternatively, slots or holes can be provided at the top of the connecting column 15, and corresponding plugs or pins can be provided at the bottom of the insulating frame 20. Connection is achieved by insertion and locking, making this method convenient and suitable for scenarios requiring frequent disassembly and assembly. Alternatively, flanges can be welded or fixed to both ends of the connecting column 15 and the insulating frame 20, and the connection is achieved by bolting between the flanges. This method is suitable for applications requiring high rigidity and stability, ensuring the overall structural robustness. Alternatively, a ball joint can be configured at the top of the connecting column 15, and a corresponding ball socket interface can be provided at the bottom of the insulating frame 20, allowing for some rotation and tilt adjustment, increasing installation flexibility while maintaining a stable connection.

[0057] Furthermore, the connecting column 15 and the supporting leg 12 are located on the same diagonal line of the base 10, which allows the connection point of the insulating frame 20 to coincide with the leveling action line of the supporting leg 12, reducing lever arm offset, reducing torsional stress, and improving structural rigidity and leveling accuracy.

[0058] The connecting column 15 is located on the side of the support leg 12 that is closer to the center of the base 10 along the diagonal. This helps to shorten the distance between the insulating frame 20 and the leveling fulcrum, optimize the torque distribution, reduce the bending moment borne by the support leg 12, and improve the structural stability and anti-overturning ability.

[0059] Additionally, the level sensor 14 is located at the center of the base 10, which can more accurately reflect the overall levelness of the base 10, minimize deviations caused by edge measurements, and improve the leveling detection accuracy; the indicator light or display screen is used to display the leveling status in real time.

[0060] Specifically, the horizontal sensor 14 uses a MEMS accelerometer or an electrolyte sensor to sense the tilt angle of the base 10 relative to the direction of gravity in real time. When the base 10 tilts, the sensitive element inside the horizontal sensor 14 generates displacement or electrical signal changes with the attitude change of the base 10, detects the difference in the components of gravity in the X and Y axes, and calculates the tilt angle of the base 10 in the two orthogonal directions. The angle signal is then converted into an electrical signal and output to the control unit 11 to achieve accurate acquisition of the levelness of the base 10.

[0061] It should be noted that when the user is working on the scaffold, the actuator 13 of this device is turned off to prevent accidental activation of the actuator 13, minimize the risk of unexpected raising or lowering of the base 10 during operation, and ensure the stability and reliability of the work platform. This also reduces the risk of electrical system operation, improves the safety of live-line work, and prevents unintended adjustments caused by drift or signal interference of the level sensor 14, ensuring the safety of personnel and equipment. However, the indicator light will show the leveling status of the base 10. If the base 10 tilts excessively, it will alert the user. The user can monitor the leveling status of the base 10 in real time while the leveling device is off. If the tilt exceeds the limit due to ground subsidence or external forces, an audible and visual warning will be issued immediately, prompting the user to take appropriate measures, effectively preventing the risk of overturning during operation and improving overall safety.

[0062] Understandably, in other embodiments, each pair of diagonally arranged support legs is equipped with a driver, which can selectively control only one of them to participate in the leveling action, while the other remains locked as a stable fulcrum, thereby improving the controllability and safety of the leveling process; at the same time, the dual-drive redundancy design is retained, which can be switched to a cooperative adjustment mode under special working conditions to enhance the adaptability and reliability of the device.

[0063] Understandably, in other embodiments, the support leg and the actuator are integrated into a hydraulic cylinder or pneumatic cylinder structure, and the height is adjusted by hydraulically or pneumatically driving the piston rod to extend and retract. This has the advantages of large output force, smooth operation, and fast response, and is suitable for heavy load or impact load conditions.

[0064] Understandably, in other embodiments, the base is provided with a display screen for showing the leveling status, which makes it easier for operators to quickly judge the working status of the device and improves the ease of operation and safety.

[0065] Understandably, in other embodiments, the connecting column may not be located on the inner diagonal side, but may be arranged alongside the support leg or located on the outer side. However, arranging it on the inner side closer to the center is more conducive to torque balance. The number of support legs may be two or three pairs, arranged in a rectangular or triangular pattern, all of which can achieve stable support.

[0066] Example 2:

[0067] This embodiment discloses an automatic leveling method for 10kV live-line working scaffolding, including the automatic leveling device for 10kV live-line working scaffolding as described in Embodiment 1. The automatic leveling method for 10kV live-line working scaffolding includes:

[0068] S1: The level sensor detects the levelness of the base in real time and generates an electrical signal;

[0069] S2: The control unit receives an electrical signal and determines whether the tilt angle is greater than the preset leveling start threshold. If so, it proceeds to S3; otherwise, it returns to S1.

[0070] S3: The control unit controls the actuator of one of the diagonally positioned support legs according to the tilt direction, adjusting the height of the support leg;

[0071] S4: The level sensor continuously monitors the level of the base. When the tilt angle is less than or equal to the preset leveling stop threshold, the driver stops and the leveling is completed.

[0072] It achieves one-click start and automatic leveling without manual intervention, significantly improving work efficiency and safety; it adopts preset start and stop thresholds to avoid frequent false triggering and adjustment oscillation, improving control stability; it ensures leveling accuracy through continuous closed-loop monitoring; it only adjusts one support leg diagonally, and the control logic is simple and reliable, making it particularly suitable for rapid deployment and precise leveling of 10kV live-line work in complex terrain.

[0073] The preset leveling start threshold is 0.5°, and the preset leveling stop threshold is 0.1°. This effectively avoids malfunctions caused by slight tilts, improving system stability; at the same time, it ensures timely response to significant tilts, high accuracy after leveling, and balances response sensitivity and control accuracy.

[0074] It should be noted that the stop threshold is lower than the start threshold to avoid the leveling system repeatedly starting and stopping at the critical point, thus preventing control oscillations. Leveling is initiated when the tilt angle exceeds 0.5°, indicating a significant deviation from level. During leveling, the tilt angle must be further reduced to within 0.1° before stopping to ensure leveling accuracy. This design incorporates hysteresis control logic to improve system stability, prevent frequent actuator actions due to small angle fluctuations, extend equipment life, and ensure reliable leveling results.

[0075] Of course, in other embodiments, if the start threshold is set to 1°, the stop threshold can be set to 0.3°; if the start threshold is set to 0.8°, the stop threshold can be set to 0.2°; if the start threshold is set to 0.6°, the stop threshold can be set to 0.15°. The stop threshold is always less than the start threshold to create control hysteresis and avoid system oscillation.

[0076] Example 3:

[0077] like Figures 5 to 6 As shown, in this embodiment, the base 10 is also provided with a linkage arm 16. The two ends of the linkage arm 16 are respectively hinged to the base 10 and the support leg 12. The two ends of the driver 13 are respectively hinged to the base 10 and the support leg 12. The hinge point between the linkage arm 16 and the base 10 is located outside the hinge point between the linkage arm 16 and the support leg 12, and the hinge point between the driver 13 and the base 10 is located inside the hinge point between the linkage arm 16 and the base 10.

[0078] By setting the hinge point between the linkage arm 16 and the base 10 outside the hinge point between the linkage arm 16 and the support leg 12, the linkage arm 16 is arranged in an outward tilt. When the support leg 12 is raised and lowered under the action of the actuator 13, the linkage arm 16 will constrain it to move along a specific arc, thereby generating a horizontal component force pointing towards the center of the base 10 during the upward movement of the support leg 12, effectively resisting the overturning tendency of the base 10 and improving the overall stability. At the same time, the hinge point between the actuator 13 and the base 10 is located inside the hinge point of the linkage arm 16, which optimizes the force transmission path, makes the force on the actuator 13 more reasonable, reduces the resistance and stress concentration during the movement, improves the transmission efficiency and structural reliability, and realizes the synergistic optimization of active anti-overturning and smooth driving during the leveling process.

[0079] Taking the base 10 tilting to the right front as an example, the right front support leg 12 is at its lowest position and needs to be extended to level it. When the actuator 13 extends, since the hinge point between the linkage arm 16 and the base 10 is located on the outside and the hinge point with the support leg 12 is located on the inside and below, the linkage arm 16 will constrain the right front support leg 12 to move upward along an outward-off arc. During this process, the force exerted by the support leg 12 on the base 10 through the linkage arm 16 can be decomposed into a vertically upward lifting force and a horizontal component force pointing towards the center of the base 10. This horizontal component force actively resists the overturning tendency of the base 10 to the right front, improving the stability of the leveling process. At the same time, the hinge point between the actuator 13 and the base 10 is located inside the hinge point of the linkage arm 16, making its thrust direction more consistent with the movement trajectory of the support leg 12, resulting in smoother force application. Finally, after the right front leg is raised to its position, the base 10 smoothly returns to a horizontal position.

[0080] Furthermore, when the support leg 12 is at its initial height and the base 10 is horizontal, the angle β between the linkage arm 16 and the vertical line is crucial. If the angle β is less than 15°, the linkage arm 16 is too close to the vertical, resulting in a small horizontal component force that is insufficient to effectively resist the overturning moment. If the angle β is greater than 30°, although the horizontal component force increases, the actuator 13 needs to overcome significantly increased lever resistance and horizontal displacement, leading to a surge in required driving force and excessive stroke. This not only requires the use of larger-specification power components, increasing costs and energy consumption, but also causes stress concentration at the hinge points, exacerbating structural wear, reducing system rigidity and motion stability, and occupying more installation space, which is detrimental to overall integration. Therefore, in this application, the angle β between the linkage arm 16 and the vertical line is between 15° and 30°. By reasonably setting the angle between the linkage arm 16 and the vertical line, the linkage arm 16 generates a sufficiently large horizontal component force to effectively counteract the overturning tendency of the base 10 and significantly improve the active stability during the leveling process.

[0081] The bottom of the support leg 12 is designed to be arc-shaped, which can effectively adapt to tilting movements during the leveling process. When the support leg 12 rises and falls along the arc under the constraint of the linkage arm 16, the contact point between its bottom and the ground will move slightly laterally. The arc-shaped bottom surface can provide a smooth rotational transition, avoiding rigid edges from getting stuck with the ground or generating excessive frictional resistance, ensuring smooth movement of the support leg 12. At the same time, during the tilting or leveling process of the base 10, the arc-shaped bottom can automatically adapt to changes in the ground angle, maintain stable contact, and prevent ground crushing or instability of the support leg 12 caused by local stress concentration. Especially on soft or uneven ground, it can increase the effective contact area, improve load-bearing capacity and anti-overturning performance, thereby ensuring a smooth and reliable leveling process.

[0082] Example 4:

[0083] This embodiment further discloses an automatic leveling method for scaffolding used in 10kV live-line work, including the automatic leveling device for scaffolding used in 10kV live-line work as described in Embodiment 3. The automatic leveling method for scaffolding used in 10kV live-line work includes:

[0084] S1: The level sensor detects the levelness of the base in real time and generates an electrical signal;

[0085] S2: The controller receives an electrical signal and determines whether the tilt angle is greater than the preset start threshold. If it is, it proceeds to S3; otherwise, it returns to S1.

[0086] S3: The controller controls the actuator of the diagonally positioned support legs according to the tilt direction, and adjusts the height of the diagonally positioned support legs to keep the base level. During the adjustment process, the linkage arm constrains the support legs to move along the arc, generating a horizontal component force pointing towards the center of the base to resist overturning.

[0087] S4: The horizontal sensor continuously monitors the base status. When the tilt angle is less than or equal to the preset stop threshold, the driver action is stopped, and leveling is completed.

[0088] The base's attitude is monitored in real time by a horizontal sensor. The controller intelligently judges the tilt direction and initiates leveling actions, intervening only when the tilt exceeds a preset threshold, thus minimizing frequent malfunctions and improving system stability. The diagonal support legs are used for coordinated adjustment, which enables force balance and attitude stability of the base during leveling, avoiding localized force concentration and abrupt attitude changes caused by single-leg or sequential leveling. During adjustment, the linkage arm constrains the support legs to move along a specific arc, actively generating a horizontal component force pointing towards the center of the base, effectively counteracting the overturning tendency and enhancing the overall stability and anti-interference capability of the support system.

[0089] When the base tilts, its leveling process can be viewed as a rigid body rotation about an axis passing through two diagonal support points. For example, if the right front corner of the base sinks, this corner experiences the greatest force and is at its lowest position, while the left rear corner will rise relatively, experiencing the least force and being at its highest position. In this case, the tilt of the base can be seen as rotation about the diagonal axis between the left rear corner and the right front corner. During leveling, the controller coordinates the right front and left rear diagonal support legs to move in tandem. By extending the right front support leg and / or shortening the left rear support leg, the base rotates smoothly back to its original position around this diagonal axis. Because the two diagonal points are adjusted synchronously, the loads on the four support points of the base are continuously and evenly redistributed, avoiding sudden changes in local force, structural torsional loads, and attitude jitter caused by adjusting only a single support leg. This achieves overall force balance and a smooth attitude transition, ensuring the leveling process is as stable and reliable as possible.

[0090] In addition to the preferred embodiments described above, the present invention has other embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without creative effort are within the scope of protection claimed by the present invention.

Claims

1. An automatic leveling device applied to a 10kV live working scaffold, comprising a base and an insulating frame body arranged on the base, characterized in that: The base is provided with a control member, at least two groups of support legs arranged diagonally, each of the support legs is provided with a driver for driving the support leg to lift, the base is further provided with a level sensor for detecting the level of the base and generating an electrical signal transmitted to the control member, the control member judges the inclination state of the base according to the received electrical signal, and controls the driver of one of the diagonally arranged support legs to act, so as to level the base.

2. The automatic leveling device for 10 kV hot-line work scaffold according to claim 1, characterized in that, The base is provided with a connecting column for connecting with the insulating frame body, and the connecting column is arranged diagonally.

3. The automatic leveling device for 10 kV hot-line work scaffold according to claim 2, characterized in that, The connecting column and the support leg are located on the same diagonal line of the base.

4. The automatic leveling device for 10 kV hot-line work scaffold according to claim 1, characterized in that, The support leg comprises a plurality of levels of sleeve-connected rod bodies, and the driver drives the rod body to perform axial extension and retraction movement.

5. The automatic leveling device for 10 kV hot-line work scaffold according to claim 4, characterized in that, The driver comprises a linear motor, the linear motor is provided with an extension shaft, and the extension shaft is fixedly connected with the rod body of the support leg.

6. The automatic leveling device for 10 kV hot-line work scaffold according to claim 1, characterized in that, The level sensor is located at the center position of the base, and the base is provided with an indicating lamp or a display screen for displaying the leveling state.

7. The automatic leveling device for 10 kV hot-line work scaffold according to claim 1, characterized in that, The base is further provided with a linkage arm, both ends of the linkage arm are hingedly connected to the base and the support leg respectively, both ends of the driver are hingedly connected to the base and the support leg respectively, the hinged point of the linkage arm and the base is located on the outer side of the hinged point of the linkage arm and the support leg, and the hinged point of the driver and the base is located on the inner side of the hinged point of the linkage arm and the base.

8. The automatic leveling device for 10 kV live working scaffold according to claim 7, characterized in that, When the support leg is at the initial height and the base is horizontal, the included angle β between the linkage arm and the vertical line is 15° to 30°.

9. A method for automatically leveling a 10 kV live working scaffold, characterized in that, The application relates to an automatic leveling device for a 10kV live working scaffold, and the automatic leveling method comprises the following steps of: S1: the level sensor detects the level state of the base in real time and generates an electrical signal; S2: the control member receives the electrical signal, judges whether the inclination angle is greater than a preset leveling starting threshold, if yes, the step S3 is entered, otherwise, the step S1 is returned; S3: the control member controls the driver of one of the diagonally arranged support legs to act according to the inclination direction, so as to adjust the height of the support leg; S4: the level sensor continuously monitors the level state of the base, and when the inclination angle is less than or equal to a preset leveling stopping threshold, the driver stops acting, and the leveling is completed.

10. A method for automatically leveling a 10 kV live working scaffold, characterized in that, The application relates to an automatic leveling device for a 10kV live working scaffold, and the automatic leveling method comprises the following steps of: S1: the level sensor detects the level state of the base in real time and generates an electrical signal; S2: the controller receives the electrical signal, judges whether the inclination angle is greater than a preset starting threshold, if yes, the step S3 is entered, otherwise, the step S1 is returned; S3: the controller controls the driver of the diagonally arranged support leg to act according to the inclination direction, adjusts the height of the diagonally arranged support leg, so that the base is kept horizontal, and in the adjusting process, the linkage arm restricts the support leg to move along an arc, and generates a horizontal component force pointing to the center of the base to resist overturning; S4: the level sensor continuously monitors the state of the base, and when the inclination angle is less than or equal to a preset stopping threshold, the driver stops acting, and the leveling is completed.

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