An overhead cable safety line distance measuring device for electric power engineering

Abstract

The present invention relates to the technical field of power engineering measurement, and specifically relates to a measuring device for the safe line distance of overhead cables in power engineering, which includes an adaptive installation base, an automatic telescopic bracket, and a safe line distance measurement component; the automatic telescopic bracket is arranged between the adaptive installation base and the safe line distance measurement component. The adaptive installation base is detachably installed on the overhead cable support frame and synchronously adjusts the installation force with the overhead cable support frame following the extension and retraction of the automatic telescopic bracket. The adaptive installation base includes a fixing mechanism clamped on the overhead cable support frame. On the side of the fixing mechanism facing the automatic telescopic bracket, there is an adaptive reinforcement member, and the adaptive reinforcement member is rotationally connected to the driving end of the automatic telescopic bracket. The safe line distance measurement component includes an adaptive measurement unit installed in a lifting manner on the lower side of the head end of the automatic telescopic bracket. This device has accurate measurement, automated operation, strong stability, and high structural linkage efficiency.

Description

Technical Field

[0001] The present invention relates to the technical field of power engineering measurement, and specifically, it is a measuring device for the safe line distance of overhead cables in power engineering. Background Technique

[0002] In power engineering, the safe line distance of overhead cables is of crucial importance, which is related to line safety, equipment protection, and personnel safety. The safe line distance refers to the minimum distance between the cable and the ground, buildings, other cables, etc., to ensure the stable operation of the power system. The safe line distance measuring device is used to accurately measure the distance between the cable and surrounding objects or the ground, and its main functions include: accurately measuring the distance between the cable and the ground, buildings, etc.; automatically recording the measurement data for subsequent analysis, and when the distance is lower than the safety threshold, an alarm is issued.

[0003] The types of existing measuring devices include: Laser rangefinder: It uses laser technology to measure distance with high accuracy.

[0004] Ultrasonic rangefinder: It measures through ultrasonic waves and is suitable for complex environments.

[0005] Infrared rangefinder: It uses infrared technology and is suitable for night or low-light environments.

[0006] GPS positioning measurement system: It combines GPS technology and is suitable for large-scale measurements.

[0007] That is, no matter which of the above measuring instruments, during its use, an effective mobile system needs to be equipped to enable it to accurately measure the safe line distance along the path to be measured. Since overhead cables are mostly used in outdoor environments with complex conditions, and the distance between adjacent cable supports is relatively far, when performing safe distance measurement in the vertical direction, it is difficult to control the lateral movement of the measuring device. Moreover, for overhead cables in the installed and in-use state, due to the influence of gravity or external pressure from rain, snow, and birds, their vertical safe line distance cannot be maintained at a fixed distance. Therefore, when measuring their vertical safe line distance, this problem needs to be considered to ensure the accuracy of the safe line distance measurement;

[0008] Therefore, in view of the above existing problems, this technical solution proposes a measuring device for the safe line distance of overhead cables in power engineering. Summary of the Invention

[0009] The purpose of the present invention is to provide a measuring device for the safe line distance of overhead cables in power engineering to solve the problems raised in the above background technique.

[0010] To achieve the above purpose, the present invention provides the following technical solutions:

[0011] An overhead cable safety line distance measuring device for power engineering, comprising an adaptive installation base, an automatic telescopic bracket, and a safety line distance measuring component; the automatic telescopic bracket is arranged between the adaptive installation base and the safety line distance measuring component, and the adaptive installation base is detachably installed on the overhead cable support frame and synchronously adjusts the installation force with the overhead cable support frame following the extension and retraction of the automatic telescopic bracket (since as the automatic telescopic bracket continuously extends, the center of gravity among the adaptive installation base, the automatic telescopic bracket, and the safety line distance measuring component will continuously move away from the adaptive installation base, and at this time, the support force requirement for the adaptive installation base will continuously increase), the automatic telescopic bracket moves along the length direction of the overhead cable to adjust the lateral position of the safety line distance measuring component, thereby realizing the automatic moving measurement of the vertical safety line distance of the overhead cable;

[0012] The adaptive installation base includes a fixing mechanism clamped and installed on the overhead cable support frame. On the side of the fixing mechanism facing the automatic telescopic bracket, there is an adaptive reinforcement member. The adaptive reinforcement member is rotationally connected to the driving end of the automatic telescopic bracket. While the driving end of the automatic telescopic bracket drives the automatic telescopic bracket to drive the safety line distance measuring component to extend outward, it controls the adaptive reinforcement member to gradually contact the overhead cable support frame and cooperate with the fixing mechanism to gradually increase the installation strength between the adaptive installation base and the overhead cable support frame;

[0013] The safety line distance measuring component includes an adaptive measuring unit installed in a lifting manner on the lower side of the head end of the automatic telescopic bracket. The adaptive measuring unit elastically slides and contacts the overhead cable. Under the expansion and contraction of the automatic telescopic bracket, it controls the adaptive measuring unit to move along the length direction of the overhead cable, and at the same time applies a downward pressure to the overhead cable to simulate the vertical position height under its maximum load, and measures the height from the ground obstacle at this time (vertical safety line distance). The adaptive measuring unit includes a U-shaped positioning box that slides and contacts the overhead cable. On both sides of the U-shaped positioning box, there are laser rangefinders for measuring the vertical safety line distance. The top of the U-shaped positioning box is elastically connected to a connecting buffer cylinder. The top of the connecting buffer cylinder is connected to the lower side of the head end of the automatic telescopic bracket through an electric telescopic rod. Under the drive of the electric telescopic rod, the contact pressure of the U-shaped positioning box on the overhead cable is adjusted, thereby simulating the lowest position of the overhead cable when it is subjected to a downward pressure;

[0014] Among them, the adaptive installation base is pre-installed on the overhead cable support frame, and then the automatic telescopic bracket is controlled to move along the length direction of the overhead cable. At the same time, the U-shaped positioning box elastically slides on the overhead cable, applying a downward pressure to the overhead cable to keep it at a nearly bearable low height. In cooperation with the laser rangefinder, the vertical safety line distance is measured. At the same time, during the continuous extension of the automatic telescopic bracket, the adaptive reinforcement is controlled to continuously contact the overhead cable support frame, gradually increasing the installation stability between the fixing mechanism and the overhead cable support frame, thereby realizing the automatic, stable, and high-precision safety line distance measurement of the overhead cable in the power project by this device.

[0015] Compared with the prior art, the beneficial effects of the present invention are as follows: By adopting the method of automatically extending and moving the automatic telescopic bracket, the safety line distance measuring component at the end is controlled to move and measure along the length direction of the overhead cable. At the same time, the safety line distance measuring component is elastically connected to the cable in a sliding manner, maintaining the pressure measurement within the safe range on the cable, ensuring that the measured safe vertical line distance is the most accurate value under any conditions.

[0016] By fully converting the kinetic energy generated during the extension of the automatic telescopic bracket, that is, designing the extension length of the automatic telescopic bracket to change synchronously with the installation stability between the adaptive installation base and the overhead cable, ensuring the smooth operation of the automatic telescopic bracket and the safety line distance measuring component without adding additional power. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a three-dimensional structural schematic diagram of a safety line distance measuring device for overhead cables in a power project;

[0018] Figure 2 It is a front view structural schematic diagram of a safety line distance measuring device for overhead cables in a power project;

[0019] Figure 3 It is a side view structural schematic diagram of a safety line distance measuring device for overhead cables in a power project;

[0020] Figure 4 It is a partial structural schematic diagram of the adaptive installation base in a safety line distance measuring device for overhead cables in a power project;

[0021] Figure 5 It is a partial structural schematic diagram of the line distance measuring component in a safety line distance measuring device for overhead cables in a power project;

[0022] Figure 6 For Figure 1 the enlarged structural schematic diagram of A in

[0023] Figure 7 For Figure 4Schematic enlarged structure diagram of B in [the figure];

[0024] Figure 8 is Figure 1 Schematic enlarged structure diagram of C in [the figure].

[0025] Among them: adaptive installation base 10, automatic telescopic bracket 11, safety line distance measurement component 12, electric telescopic rod 14, connecting buffer cylinder 15, U-shaped positioning box 16, laser rangefinder 17, pulley 18, pressure sensor 19, buffer rod 20, limit block 21, buffer spring 22, telescopic bracket tail ring 23, telescopic bracket head ring 24, telescopic bracket middle ring 25, fixed installation clamping plate 26, movable installation clamping plate 27, threaded hole 28, fixed bolt 29, locking nut 30, hydraulic cylinder 31, end plate 32, swing connection block 33, hydraulic rod 34, top swing rod I 35, top swing rod II 36, swing connection shaft 37, U-shaped connecting rod 38, collar 39, U-shaped connecting block 40, connecting column 41, connecting rod 42, driving gear 43, driven toothed bar 44, moving plate 45, T-shaped slide bar 46, T-shaped slide groove 47, reinforcing plate 48, corrugated strip 49, toothed shaft 50. Specific implementation manner

[0026] It should be noted that, without conflict, the embodiments in the present invention and the features in the embodiments can be combined with each other.

[0027] In the description of the present invention, it should be understood that the orientation or positional relationship indicated by the terms "center", "longitudinal", "transverse", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. is the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus cannot be understood as a limitation to the present invention. In addition, the terms "first", "second", etc. are only used for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly indicating the quantity of the indicated technical features. Thus, the features defined with "first", "second", etc. may explicitly or implicitly include one or more of such features. In the description of the present invention, unless otherwise specified, the meaning of "a plurality" is two or more.

[0028] In the description of the present invention, it should be noted that unless otherwise clearly specified and defined, the terms "installation", "connection", and "coupling" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, and it can be the communication inside two components. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0029] The present invention will be described in detail below with reference to the accompanying drawings and in conjunction with embodiments.

[0030] Please refer to Figures 1 - 5 , a safety line distance measuring device for overhead cables in power engineering, comprising an adaptive installation base 10, an automatic telescopic bracket 11, and a safety line distance measuring component 12; the automatic telescopic bracket 11 is arranged between the adaptive installation base 10 and the safety line distance measuring component 12, and the adaptive installation base 10 is detachably installed on the overhead cable support frame and synchronously adjusts the installation force with the overhead cable support frame following the extension and retraction of the automatic telescopic bracket 11 (since as the automatic telescopic bracket 11 continuously extends, the center of gravity among the adaptive installation base 10, the automatic telescopic bracket 11, and the safety line distance measuring component 12 will continuously move away from the adaptive installation base 10, and at this time, the support force requirement for the adaptive installation base 10 will continuously increase), the automatic telescopic bracket 11 moves along the length direction of the overhead cable to adjust the lateral position of the safety line distance measuring component 12, thereby realizing the automatic moving measurement of the vertical safety line distance of the overhead cable;

[0031] The adaptive installation base 10 includes a fixing mechanism clamped and installed on the overhead cable support frame. On the side of the fixing mechanism facing the automatic telescopic bracket 11, an adaptive reinforcement member is arranged. The adaptive reinforcement member is rotationally connected to the driving end of the automatic telescopic bracket 11. While the driving end of the automatic telescopic bracket 11 drives the automatic telescopic bracket 11 to drive the safety line distance measuring component 12 to extend outwards, it controls the adaptive reinforcement member to gradually contact the overhead cable support frame and cooperate with the fixing mechanism to gradually increase the installation strength between the adaptive installation base 10 and the overhead cable support frame;

[0032] The safety line distance measurement component 12 includes an adaptive measurement unit that is installed in a lifting manner on the lower side of the head end of the automatic telescopic bracket 11. The adaptive measurement unit is in elastic sliding contact with the overhead cable. Under the telescopic movement of the automatic telescopic bracket 11, it controls the adaptive measurement unit to move along the length direction of the overhead cable, and at the same time applies a downward pressure to the overhead cable to simulate the vertical position height under its maximum force, and measures the height from the ground obstacle at this time (vertical safety line distance). The adaptive measurement unit includes a U-shaped positioning box 16 that is in sliding contact with the overhead cable. Laser rangefinders 17 for measuring the vertical safety line distance are installed on both sides of the U-shaped positioning box 16. The top of the U-shaped positioning box 16 is elastically connected to a connecting buffer cylinder 15. The top of the connecting buffer cylinder 15 is connected to the lower side of the head end of the automatic telescopic bracket 11 through an electric telescopic rod 14. Under the drive of the electric telescopic rod 14, the contact pressure of the U-shaped positioning box 16 on the overhead cable is adjusted, thereby simulating the lowest position of the overhead cable when it is subjected to a downward pressure;

[0033] Among them, the adaptive installation base 10 is pre-installed on the overhead cable support frame, and then the automatic telescopic bracket 11 is controlled to move along the length direction of the overhead cable. At the same time, the U-shaped positioning box 16 slides elastically on the overhead cable, applying a downward pressure to the overhead cable to keep it at a nearly bearable low height, and cooperating with the laser rangefinder 17 to measure the vertical safety line distance. At the same time, during the continuous extension of the automatic telescopic bracket 11, the adaptive reinforcement is controlled to continuously contact the overhead cable support frame, gradually increasing the installation stability between the fixing mechanism and the overhead cable support frame, thereby realizing the automatic, stable and high-precision safety line distance measurement of the overhead cable in the power project by this device.

[0034] In the embodiment of the present invention, a set of control boxes are installed at the head end of the automatic telescopic bracket 11. The control boxes are internally provided with wireless transceiver modules, which are wirelessly communicatively connected to remote control terminals (such as mobile phones, computers, etc.). The electrical components in the adaptive installation base 10, the automatic telescopic bracket 11, and the safety line distance measurement component 12 are all electrically connected to the control boxes, which ensures that the operator can directly control the operation of the above components remotely, thereby increasing the degree of automation;

[0035] Among them, for the connection, operation, and operation between the control boxes and the electrical components in the adaptive installation base 10, the automatic telescopic bracket 11, and the safety line distance measurement component 12, they can all be realized by means of existing technologies, and will not be elaborated here;

[0036] A plurality of pulleys 18 that roll along the length direction of the overhead cable are evenly installed on the inner side of the U-shaped positioning box 16. A pressure sensor 19 for real-time detection of the contact force on the overhead cable is arranged on the outer surface of the pulley 18. That is, through the real-time monitoring of the pressure of the overhead cable by the pressure sensor 19, and then in cooperation with the electric telescopic rod 14, it is ensured to control the position adjustment of the overhead cable under safe stress. At the same time, under the elastic action of the U-shaped positioning box 16 and the connecting buffer cylinder 15, the safety protection force for the overhead cable is further improved;

[0037] Specifically, a buffer rod 20 is installed in the middle of the top of the U-shaped positioning box 16. The top end of the buffer rod 20 extends into the connecting buffer cylinder 15 and is provided with a limiting block 21. The area of the limiting block 21 is larger than the bottom opening of the connecting buffer cylinder 15. The top of the limiting block 21 is elastically connected to the inner top of the connecting buffer cylinder 15 through a plurality of buffer springs 22. That is, under the elastic action of the buffer springs 22, the elastic design between the U-shaped positioning box 16 and the electric telescopic rod 14 is maintained;

[0038] Ground obstacles generally refer to trees, buildings, raised land, etc. on the ground. By measuring the height of the overhead cable from the ground when it is at the lowest position, it can be ensured that when rain, snow, or birds exert pressure on it, the overhead cable still maintains a safe distance from the ground.

[0039] In an example of the present invention, the fixing mechanism includes two groups of fixedly installed clamping plates 26 and movably installed clamping plates 27 that are parallelly distributed. Both the fixedly installed clamping plates 26 and the movably installed clamping plates 27 are provided with rectangular frame structures. The movably installed clamping plate 27 moves towards the fixedly installed clamping plate 26 and clamps at a suitable position of the overhead cable support frame to be installed. Threaded holes 28 are opened at the corresponding positions of the four corners of the fixedly installed clamping plates 26 and the movably installed clamping plates 27. Fixing bolts 29 are threadedly connected inside the threaded holes 28. By rotating the fixing bolts 29, the position of the movably installed clamping plate 27 relative to the fixedly installed clamping plate 26 is adjusted to carry out clamping and fixing. At the same time, a locking nut 30 is threadedly connected to the side of the fixing bolt 29 away from the movably installed clamping plate 27. That is, under the action of the locking nut 30, the tightening force on the fixing bolt 29 is increased;

[0040] As a preferred embodiment of the present invention, the automatic telescopic bracket 11 includes a telescopic bracket head ring 24 at the head end, a telescopic bracket tail ring 23 at the tail end, and a plurality of groups of equally spaced and movably distributed telescopic bracket middle rings 25 movably arranged between the telescopic bracket tail ring 23 and the telescopic bracket head ring 24. The telescopic bracket tail ring 23, the telescopic bracket head ring 24, and the telescopic bracket middle ring 25 have the same structure and are all arranged as rectangular frame structures. Between the adjacent telescopic bracket tail ring 23 and the telescopic bracket middle ring 25, between the telescopic bracket middle rings 25, and between the telescopic bracket middle ring 25 and the telescopic bracket head ring 24, they are movably connected through swing connectors on one side of the adjacent top and one side of the lower part of the side wall. By using the extension of the swing connectors, the distance between the adjacent telescopic bracket tail ring 23, the telescopic bracket middle ring 25, and the telescopic bracket head ring 24 is adjusted. The safety line distance measuring component 12 is installed on the telescopic bracket head ring 24, thereby realizing the automatic position adjustment of the safety line distance measuring component 12;

[0041] The driving end of the automatic telescopic bracket 11 includes a hydraulic cylinder 31 rotatably arranged on the telescopic bracket tail ring 23. The output end of the hydraulic cylinder 31 is connected with a hydraulic rod 34. The end of the hydraulic rod 34 is rotatably connected with the swing connector between the top of the adjacent telescopic bracket tail ring 23 and the telescopic bracket middle ring 25. One side of the telescopic bracket tail ring 23 far from the telescopic bracket head ring 24 is fixedly installed on the fixed installation clamping plate 26. That is, by starting the hydraulic cylinder 31 to control the extension of the hydraulic rod 34, the swing connector at the corresponding end is driven to rotate, and then the telescopic bracket middle ring 25 at the end is controlled to move synchronously. Then, with the support of the swing connectors between the adjacent telescopic bracket tail ring 23, the telescopic bracket head ring 24, and the telescopic bracket middle ring 25 located at the lower part of the side wall, the telescopic bracket middle ring 25 and the telescopic bracket head ring 24 are controlled to extend synchronously along the length of the overhead cable, achieving the purpose of automatic movement;

[0042] Specifically, refer to Figure 6 , an end plate 32 is installed at the tail end of the hydraulic cylinder 31. A swing connection block 33 is installed on the side of the end plate 32 far from the hydraulic cylinder 31. The swing connection block 33 is rotatably connected to the telescopic bracket tail ring 23 through a rotating shaft. The end of the hydraulic rod 34 is rotatably connected to the swing connector through a rotating shaft. That is, when the hydraulic cylinder 31 operates to control the telescopic movement of the hydraulic rod 34, while controlling the extension of the swing connector, the swing connection block 33 at its tail end will also rotate within a certain angle synchronously, ensuring that the swing connector can be controlled to extend stably and smoothly. At this time, the form of extension is: when the hydraulic rod 34 extends, the swing connector is controlled to extend synchronously, and then the telescopic bracket middle ring 25 and the telescopic bracket head ring 24 are controlled to extend. At the same time, the swing connection block 33 swings outwards, and the bottom of the swing connection block 33 passes through the telescopic bracket tail ring 23 movably and is connected with the adaptive reinforcement member, that is, the installation degree between the adaptive reinforcement member and the overhead cable support frame is increased synchronously.

[0043] As a preferred embodiment of the present invention, refer to Figure 8 , the swing connection member structures at the top and side between the tail ring 23 of the telescopic support and the middle ring 25 of the telescopic support, between the middle ring 25 of the telescopic support and the middle ring 25 of the telescopic support, and between the middle ring 25 of the telescopic support and the head ring 24 of the telescopic support are the same. Taking the swing connection member between the top of the middle ring 25 of the telescopic support and the middle ring 25 of the telescopic support as an example for description, the swing connection member includes a top swing rod I 35 and a top swing rod II 36. The end portions of the top swing rod I 35 and the top swing rod II 36 away from each other are rotatably connected to a connecting column 41 installed at the top of the middle ring 25 of the telescopic support. The end portions of the top swing rod I 35 and the top swing rod II 36 close to each other are respectively provided with a U-shaped connecting rod 38 and a collar 39. The collar 39 is placed in the middle of the U-shaped connecting rod 38, and a swing connection shaft 37 is sleeved together. Under the rotational connection of the swing connection shaft 37, the U-shaped connecting rod 38, and the collar 39, the two side top swing rods I 35 and II 36 are kept swing-connected to each other, and under the connection of the connecting column 41, the rotational relative movement between adjacent middle rings 25 of the telescopic support is controlled;

[0044] Similarly, the swing connection members between the top and side between the tail ring 23 of the telescopic support and the middle ring 25 of the telescopic support, and between the middle ring 25 of the telescopic support and the head ring 24 of the telescopic support are also connected in this way, and will not be elaborated here.

[0045] As a preferred embodiment of the present invention, the end of the hydraulic rod 34 is rotatably connected through a rotating shaft to a U-shaped connection block 40 installed on the side wall of the top swing rod I 35. The U-shaped connection blocks 40 are distributed at the position on the side wall of the top swing rod I 35 close to the tail ring 23 of the telescopic support, ensuring that when the hydraulic rod 34 extends, it can smoothly and fully control the swing movement of the top swing rod I 35 and the top swing rod II 36.

[0046] As a preferred embodiment of the present invention, refer to Figure 1 , Figure 7, the adaptive reinforcement member includes a connecting rod 42 connected to the bottom of the swing connecting block 33. The bottom end of the connecting rod 42 is provided with a driving gear 43. One side of the driving gear 43 is engaged with a driven gear rod 44. The upper and lower ends of the driven gear rod 44 are rotatably connected to the upper and lower inner walls of the inner side of the telescopic support tail ring 23 through a tooth shaft 50. A group of moving plates 45 are slidably connected to the inner side wall of the telescopic support tail ring 23 on one side of the driven gear rod 44. A rack is provided on the side of the moving plate 45 facing the driven gear rod 44, and the rack is engaged with the driven gear rod 44. A plurality of horizontally distributed reinforcement plates 48 are evenly installed on the side of the moving plate 45 facing the moving mounting clamping plate 27. The reinforcement plates 48 move along the middle of the fixed mounting clamping plate 26. When the hydraulic rod 34 extends, the swing connecting block 33 is controlled to rotate counterclockwise. At this time, the connecting rod 42 is controlled to rotate counterclockwise, and then the driven gear rod 44 is driven to rotate clockwise, thereby driving the rack to control the moving plate 45 to move towards the moving mounting clamping plate 27, and then the reinforcement plates 48 are controlled to contact the overhead cable support frame. As the hydraulic cylinder 31 swings outwards, the contact force between the reinforcement plates 48 and the support frame is gradually increased, so as to achieve the adaptive reinforcement installation effect;

[0047] One side of the reinforcement plate 48 in contact with the overhead cable support frame is provided with corrugated strips 49 for increasing the friction force when the two are in contact;

[0048] Specifically, a plurality of T-shaped sliding strips 46 are evenly installed on the side of the moving plate 45 opposite to the rack. T-shaped sliding grooves 47 are opened on the inner wall of the telescopic support tail ring 23 corresponding to the T-shaped sliding strips 46, and the T-shaped sliding strips 46 slide along the T-shaped sliding grooves 47 to maintain the smoothness of the moving plate 45 during movement.

[0049] The working principle of the present invention is as follows: At the idle position of the device, all the above-mentioned driving components, which refer to power components, electrical components and the adapted power supply, are connected by wires, and the electrical connection is completed in the order of the working sequence of each electrical component. The detailed connection means are well-known techniques in the art. The following mainly introduces the working principle and process, and will not explain the electrical control. Before measurement, it is pre-installed on the overhead cable support frame by the fixed mounting clamp plate 26 and the movable mounting clamp plate 27 to keep the safety line distance measuring assembly 12 stable initially. Then, the electric telescopic rod 14 is remotely controlled to descend, and the U-shaped positioning box 16 at the bottom is sleeved outside the cable. At the same time, the pressure sensor 19 is used for real-time pressure detection. Then, the hydraulic cylinder 31 is started to drive the hydraulic rod 34 to continuously extend. Under the action of the swing connecting piece, the middle ring 25 and the first ring 24 of the telescopic support are gradually and slowly controlled to extend along the overhead cable. At the same time, the pulley 18 inside the U-shaped positioning box 16 slides along the cable, and the laser rangefinder 17 outside the U-shaped positioning box 16 measures the vertical safety line distance in real time to ensure the height measurement of the cable at the lowest safety line distance. And when the hydraulic rod 34 continuously extends, the swing connecting block 33 at its tail end is controlled to continuously rotate. At this time, the connecting rod 42 is driven to rotate, and then the engagement between the driving gear 43 and the driven gear rod 44 and the rack is used to control the reinforcing plate 48 at the end of the moving plate 45 to continuously move towards the overhead cable support frame to adapt the overall installation stability of the adaptive installation base 10 to the support frame.

[0050] The above describes the preferred embodiments of the present invention in detail, but the present invention is not limited to the above embodiments. Within the scope of knowledge possessed by those of ordinary skill in the art, various changes can be made without departing from the gist of the present invention.

Claims

1. A device for measuring safe line distance of overhead cables in power engineering, characterized in that: The invention comprises an adaptive mounting base (10), an automatic telescopic bracket (11), and a safety line distance measuring assembly (12); the automatic telescopic bracket (11) is arranged between the adaptive mounting base (10) and the safety line distance measuring assembly (12); the adaptive mounting base (10) is detachably mounted on an overhead cable support frame and follows the extension and retraction of the automatic telescopic bracket (11) to synchronously adjust the installation force of the overhead cable support frame; The adaptive mounting base (10) comprises a fixing mechanism clamped and mounted on an overhead cable support frame, an adaptive reinforcement piece is arranged on a side of the fixing mechanism facing the automatic telescopic support (11), the adaptive reinforcement piece is rotatably connected to a driving end of the automatic telescopic support (11), and the driving end of the automatic telescopic support (11) drives the automatic telescopic support (11) to drive the safety line distance measurement component (12) to extend outward, while controlling the adaptive reinforcement piece to gradually contact the overhead cable support frame; The safety line distance measurement assembly (12) comprises an adaptive measuring unit installed in a lifting manner at the lower side of the head end of the automatic telescopic bracket (11); the adaptive measuring unit is in elastic sliding contact with the overhead cable; when the automatic telescopic bracket (11) is extended or retracted, the adaptive measuring unit is controlled to move along the length direction of the overhead cable, exerting downward pressure on the overhead cable to simulate the vertical position height under maximum force; the adaptive measuring unit comprises a U-shaped positioning box (16) in sliding contact with the overhead cable; laser distance meters (17) for measuring vertical safety line distances are installed on both sides of the U-shaped positioning box (16); a connecting buffer cylinder (15) is elastically connected to the top of the U-shaped positioning box (16); and the top of the connecting buffer cylinder (15) is connected to the lower side of the head end of the automatic telescopic bracket (11) via an electric telescopic rod (14).

2. The device for measuring safe line distance of overhead cables in electric power engineering according to claim 1, characterized in that: A control box is installed at the front end of the automatic telescopic bracket (11), the control box has a built-in wireless transceiver module, and the wireless communication is connected to a remote control terminal. The electrical components in the adaptive mounting base (10), the automatic telescopic bracket (11), and the safety line distance measurement component (12) are all electrically connected to the control box.

3. The device for measuring safe line distance of overhead cables in electric power engineering according to claim 2, characterized in that: A plurality of groups of pulleys (18) rolling along the length direction of the overhead cable are evenly mounted on the inner side of the U-shaped positioning box (16), and pressure sensors (19) for real-time detection of contact force with the overhead cable are arranged on the outer surface of the pulleys (18).

4. The device for measuring safe line distance of overhead cables in electric power engineering according to claim 3, characterized in that: A buffer rod (20) is installed at the middle of the top of the U-shaped positioning box (16); the top of the buffer rod (20) extends into the interior of the connecting buffer cylinder (15) and is installed with a limit block (21); the area of ​​the limit block (21) is larger than the bottom opening of the connecting buffer cylinder (15); the top of the limit block (21) is elastically connected to the top of the connecting buffer cylinder (15) via a plurality of buffer springs (22).

5. The device for measuring safe line distance of overhead cables in electric power engineering according to claim 4, characterized in that: The fixing mechanism comprises two groups of parallelly distributed fixed mounting clamps (26) and movable mounting clamps (27), the fixed mounting clamps (26) and movable mounting clamps (27) are both provided with a rectangular frame structure, the movable mounting clamps (27) move towards the fixed mounting clamps (26), threaded holes (28) are provided at corresponding positions of the four corners of the fixed mounting clamps (26) and the movable mounting clamps (27), the threaded holes (28) are internally threadedly connected with fixing bolts (29), and the fixing bolts (29) are threadedly connected with a locking nut (30) on a side away from the movable mounting clamps (27).

6. The device for measuring safe line distance of overhead cables in electric power engineering according to claim 5, characterized in that: The automatic telescopic support (11) comprises a telescopic support head ring (24) located at the head end, a telescopic support tail ring (23) at the tail end, and a plurality of groups of telescopic support middle rings (25) movably arranged between the telescopic support tail ring (23) and the telescopic support head ring (24) and equidistantly movably distributed. The telescopic support tail ring (23), the telescopic support head ring (24), and the telescopic support middle ring (25) have the same structure and are all arranged as a rectangular frame structure. The adjacent telescopic support tail rings (23) and telescopic support middle rings (25), the telescopic support middle rings (25) and the telescopic support middle rings (25), and the telescopic support middle rings (25) and the telescopic support head rings (24) are movably connected at the adjacent top side and the side of the lower part of the side wall by swing connectors.

7. The device for measuring safe line distance of overhead cables in electric power engineering according to claim 6, characterized in that: The driving end of the automatic telescopic support (11) comprises a hydraulic cylinder (31) rotatably arranged on the telescopic support tail ring (23); the output end of the hydraulic cylinder (31) is connected to a hydraulic rod (34); the end of the hydraulic rod (34) is rotatably connected to a swing connection piece between the adjacent telescopic support tail ring (23) and the top of the telescopic support middle ring (25); the side of the telescopic support tail ring (23) away from the telescopic support head ring (24) is fixedly mounted on a fixed mounting clamp (26); the tail end of the hydraulic cylinder (31) is mounted with an end plate (32); the side of the end plate (32) away from the hydraulic cylinder (31) is mounted with a swing connection block (33); the swing connection block (33) is rotatably connected to the telescopic support tail ring (23) via a rotating shaft; the end of the hydraulic rod (34) is rotatably connected to the swing connection piece via a rotating shaft.

8. The device for measuring safe line distance of overhead cables in electric power engineering according to claim 7, characterized in that: The swing connectors located at the top and sides between the telescopic bracket tail ring (23) and the telescopic bracket middle ring (25), between the telescopic bracket middle ring (25) and the telescopic bracket middle ring (25), and between the telescopic bracket middle ring (25) and the telescopic bracket head ring (24) are all of the same structure. The swing connector located between the telescopic bracket middle ring (25) and the top of the telescopic bracket middle ring (25) is described as an example. The swing connector includes a top swing rod I (35) and a top swing rod II (36). The ends of the top swing rod I (35) and the top swing rod II (36) that are away from each other are rotatably connected to a connecting column (41) installed at the top of the telescopic bracket middle ring (25). The ends of the top swing rod I (35) and the top swing rod II (36) that are close to each other are respectively installed with a U-shaped connecting rod (38) and a collar (39). The collar (39) is placed in the middle of the U-shaped connecting rod (38) and is jointly covered with a swing connecting shaft (37).

9. The device for measuring safe line distance of overhead cables in electric power engineering according to claim 8, characterized in that: The end of the hydraulic rod (34) is rotatably connected to a U-shaped connection block (40) mounted on the side wall of the top swing rod I (35) via a rotating shaft. The U-shaped connection block (40) is distributed at a position on the side wall of the top swing rod I (35) close to one side of the telescopic bracket tail ring (23).

10. The device for measuring safe line distance of overhead cables in electric power engineering according to claim 9, characterized in that: The adaptive reinforcement member comprises a connecting rod (42) connected to the bottom of the swing connection block (33), a driving tooth (43) is installed at the bottom end of the connecting rod (42), a driven tooth bar (44) is meshed with one side of the driving tooth (43), the upper and lower ends of the driven tooth bar (44) are rotatably connected to the upper and lower inner walls of the telescopic bracket tail ring (23) through a gear shaft (50), a group of moving plates (45) are slidably connected to the inner wall of the telescopic bracket tail ring (23) on one side of the driven tooth bar (44), a rack is provided on the side of the moving plate (45) facing the driven tooth bar (44), the rack meshes with the driven tooth bar (44), a plurality of transversely distributed reinforcement plates (48) are evenly installed on the side of the moving plate (45) facing the moving installation clamping plate (27), and the reinforcement plates (48) move along the middle of the fixed installation clamping plate (26); A plurality of T-shaped slide bars (46) are evenly mounted on one side of the movable plate (45) opposite to the rack, and a T-shaped slide groove (47) is formed on the inner wall of the T-shaped slide bar (46) corresponding to the telescopic bracket tail ring (23), and the T-shaped slide bar (46) slides along the T-shaped slide groove (47).

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