Power transmission line electrical fault detection device

Abstract

The invention relates to the technical field of circuit detection, in particular to a power transmission line electrical fault detection device which comprises an assembly frame assembly and a detection structure assembly movably installed on the assembly frame assembly, and the detection structure assembly is arranged outside a power transmission line in a sleeving mode to conduct electrical line detection. The detection structure assembly is composed of a transverse insertion rod, a rotating assembly, an arc-shaped assembly frame and an arc-shaped detection frame. The arc-shaped detection frame is movably installed on the arc-shaped assembly frame, the power transmission line is detected through the structure on the arc-shaped detection frame, and the full-surrounding structure can surround the power transmission line, so that the detection structure on the arc-shaped detection frame can comprehensively detect all angles and parts of the power transmission line, and detection blind areas are avoided. Various problems such as abrasion, corrosion and discharge traces possibly existing on the surface and the periphery of the line can be found in time, and due to the fact that the power transmission line can be detected from different directions and positions, richer and more comprehensive data can be collected.

Description

Technical Field

[0001] The invention relates to the technical field of circuit detection, and in particular to a transmission line electrical fault detection device. Background Art

[0002] The transmission line electrical fault detection device is used to detect the fault location of the transmission line. When a transmission line fails, a sudden change in voltage and current will occur at the fault point, thereby stimulating traveling waves to propagate along the line. By installing traveling wave monitoring devices at both ends of the transmission line, comparing the time difference when the traveling waves arrive at both ends, and combining the line parameters, the specific location of the fault point can be calculated.

[0003] When calculating the propagation distance of traveling waves, it is necessary to accurately know parameters such as the length of the line. However, there may be errors in the actual length measurement of the transmission line, especially for some old lines or lines passing through complex terrain. The measurement error of the line length may be accumulated in the fault location result. This detection method can only obtain the approximate range of the fault location, and it is necessary to further improve the accuracy for further positioning. Summary of the invention

[0004] The object of the present invention is to provide a transmission line electrical fault detection device to solve the problems raised in the above background technology.

[0005] To achieve the above object, the present invention provides the following technical solutions: a transmission line electrical fault detection device, comprising an assembly frame assembly and a detection structure assembly movably mounted on the assembly frame assembly, the detection structure assembly being set outside the transmission line to perform electrical line detection; The detection structure assembly is composed of a transverse insertion rod, a rotating assembly, an arc-shaped assembly frame and an arc-shaped detection frame; The arc-shaped detection frame is movably mounted on the arc-shaped assembly frame, and the arc-shaped detection frame slides on the arc-shaped assembly frame to form an annular structure sleeved outside the power transmission line; The transverse insertion rod is rotatably connected to the arc-shaped assembly frame through a rotating assembly, and the transmission lines with different inclination angles are adapted through the mutual rotation between the arc-shaped assembly frame and the transverse insertion rod.

[0006] Preferably, the structure on the back of the arc-shaped detection frame is adapted to the shape of the slot provided on the arc-shaped assembly frame, and the cross-section of the structure on the back of the arc-shaped detection frame is trapezoidal, thereby providing stability for the sliding of the arc-shaped detection frame.

[0007] Preferably, the assembly frame assembly comprises a longitudinal vertical rod and a transverse assembly rod movably sleeved outside the longitudinal vertical rod, and the transverse insertion rod is movably inserted into the longitudinal vertical rod, a transverse limiting plate is fixedly mounted on the longitudinal vertical rod, a locking bolt is threadedly mounted on the transverse limiting plate, and the transverse insertion rod is fixed by the locking bolt; A gantry sliding frame is fixedly mounted on the transverse assembly rod, the gantry sliding frame is sleeved on another transverse assembly rod, a locking bolt is threadedly connected to the gantry sliding frame, and a trapezoidal guide groove corresponding to the shape of the gantry sliding frame is opened on the transverse assembly rod.

[0008] Preferably, an electrical connection component is provided between the arc detection frame and the arc assembly frame, and the electrical connection component is used for supplying power to the arc detection frame.

[0009] Preferably, the electrical connection component comprises a rotating wheel mounting seat mounted on the arc-shaped assembly frame, the rotating wheel mounting seat is rotatably connected to a winding wheel, an electrical connection line is wound around the winding wheel, and the electrical connection line is electrically connected to the arc-shaped detection frame.

[0010] Preferably, the winding wheel is rotatably connected to the rotating wheel mounting seat via a rotating shaft, and a torsion spring is arranged outside the rotating shaft at the connecting position between the two, one end of the torsion spring is fixed outside the rotating shaft and the other end is fixed outside the rotating wheel mounting seat.

[0011] Preferably, the arc-shaped assembly frame and the arc-shaped detection frame are coaxially arranged to ensure the rotation of the arc-shaped detection frame within the arc-shaped assembly frame.

[0012] Preferably, the upper end and the lower end of the arc-shaped assembly frame are both provided with fixing components for fixing the arc-shaped detection frame after it is rotated on the arc-shaped assembly frame.

[0013] Preferably, the fixing assembly comprises a mounting kit fixed on the arc-shaped detection frame, and an end fixing strip is fixedly mounted on one end of the mounting kit away from the arc-shaped detection frame; A telescopic pressing block is movably installed in the installation kit, and a return spring is arranged between the telescopic pressing block and the end fixing strip for connection. A fixing groove corresponding to the shape of the telescopic pressing block is opened on the arc-shaped detection frame.

[0014] Preferably, the moving stroke of the arc detection frame on the arc assembly frame is equal to the degree of the center angle of the minor arc between the two arc assembly frames.

[0015] Preferably, the arc-shaped detection rack and the arc-shaped assembly rack are two groups, and the two groups of arc-shaped detection racks and arc-shaped assembly racks are arranged in bilateral symmetry.

[0016] Preferably, a connecting mechanism is provided between the two groups of arc-shaped detection frames for fixing, a fixed mounting seat is fixedly mounted on the arc-shaped detection frame, an arc-shaped insert is movably mounted in the fixed mounting seat, and a threaded rotatable connection is provided on the fixed mounting seat.

[0017] Preferably, the rotating assembly includes a rotatable sleeve rotatably mounted on the transverse insertion rod, an annular buckle is provided between the rotatable sleeve and the transverse insertion rod, a supporting spring sleeved on the transverse insertion rod is provided between the annular buckles, a positioning gear ring is movably inserted in the rotatable sleeve, and the positioning gear ring is mounted on the arc-shaped assembly frame through a connecting seat.

[0018] Compared with the prior art, the present invention has the following beneficial effects: 1. The telescopic pressing block is engaged in the fixed groove to fix the arc detection frame after rotation. The arc assembly frame and the arc detection frame form a fully enclosed structure and move outside the transmission line. The transmission line is detected through the structure on the arc detection frame. The arc assembly frame and the arc detection frame form a fully enclosed structure. The fully enclosed structure can surround the transmission line, so that the detection structure on the arc detection frame can perform comprehensive detection on all angles and parts of the transmission line to avoid detection blind spots, and can promptly discover various problems such as wear, corrosion, discharge marks, etc. that may exist on the surface and surrounding areas of the line. Since the transmission line can be detected from different directions and positions, richer and more comprehensive data can be collected.

[0019] 2. The connection and synchronous adjustment of the two arc-shaped detection frames are realized through the connecting mechanism. The synchronous adjustment ensures the coordinated movement of the two arc-shaped detection frames, avoids unnecessary repeated detection areas and movements, makes the detection work more orderly and efficient, optimizes the detection process, and saves manpower and time costs.

[0020] 3. The distance between the upper and lower transverse component bars is achieved by changing the position of the transverse component bar on the longitudinal vertical bar. The size of the frame composed of the longitudinal vertical bar and the transverse component bar can be adjusted to adapt to different usage conditions, to adapt to people of different body shapes, and to adapt to different usage environments. Since the frame size is adjustable, it can adapt to different usage conditions and user needs, so that the product will not be unusable due to changes in the user's body shape or the use environment, thereby extending the service life of the product and reducing the frequency of replacing the product due to unsuitability.

[0021] 4. Adjust the inclination angle of the arc assembly frame and the arc detection frame to achieve the fixation of the arc assembly frame and the arc detection frame after adjustment to adapt to the transmission lines with different inclined structures. For transmission lines with complex inclination angles, the arc assembly frame and the detection frame with adjustable inclination angle can flexibly adjust the detection angle according to the actual direction and inclination of the line to ensure comprehensive and complete detection of various parts of the line, including bends and corners, to avoid detection blind spots and timely discover potential safety hazards. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is a schematic diagram of the main structure of the present invention.

[0023] Figure 2 It is a schematic diagram of the top view structure of the present invention.

[0024] Figure 3 It is a structural schematic diagram of the corresponding position of the assembly frame assembly of the present invention.

[0025] Figure 4 It is a schematic diagram of the structure at the corresponding position of the transverse assembly rod of the present invention.

[0026] Figure 5 It is a structural schematic diagram of the corresponding position of the gantry sliding frame of the present invention.

[0027] Figure 6 It is a schematic diagram of the structure at the corresponding position of the transverse limiting plate of the present invention.

[0028] Figure 7 It is a schematic diagram of the structure at the corresponding position of the arc-shaped detection frame of the present invention.

[0029] Figure 8 It is a schematic diagram of the structure at the corresponding position of the positioning gear ring of the present invention.

[0030] Fig. 9 It is a schematic diagram of the disassembled structure of the rotating assembly of the present invention.

[0031] Fig.10 It is a structural schematic diagram of the corresponding position of the rotating assembly of the present invention.

[0032] Fig.11 It is a structural schematic diagram of the corresponding position of the connecting mechanism of the present invention.

[0033] Fig.12 It is a schematic diagram of the structure at the corresponding position of the fixing groove of the present invention.

[0034] Fig.13 It is a structural schematic diagram of the corresponding position of the fixing component of the present invention.

[0035] Fig.14 It is a schematic diagram of the structure at the corresponding position of the electrical connection component of the present invention.

[0036] In the figure: 1. Assembly frame assembly; 101. Vertical vertical rod; 102. Horizontal assembly rod; 1021. Trapezoidal guide groove; 103. Gantry sliding frame; 104. Locking bolt; 105. Horizontal limit plate; 2. Detection structure assembly; 201. Horizontal insertion rod; 202. Arc assembly frame; 203. Arc detection frame; 204. Fixing assembly; 2041. Installation kit; 2042. End fixing strip; 2043. Reset spring; 2044. Telescopic pressure Block; 2045, fixed groove; 205, rotating assembly; 2051, rotatable sleeve; 2052, ring buckle; 2053, support spring; 2054, positioning gear ring; 2055, connecting seat; 206, connecting mechanism; 2061, fixed mounting seat; 2062, arc-shaped insert; 2063, fixing bolt; 207, electrical connection assembly; 2071, rotating wheel mounting seat; 2072, winding wheel; 2073, electrical connection line; 2074, torsion spring. DETAILED DESCRIPTION

[0037] In order to make the purpose, technical solution and advantages of the present invention clearer, the technical solution in the embodiment of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiment of the present invention. Obviously, the described embodiment is a part of the embodiment of the present invention, not all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0038] See also Figures 1 to 14 The present invention provides a technical solution: a transmission line electrical fault detection device, comprising an assembly frame assembly 1 and a detection structure assembly 2 movably mounted on the assembly frame assembly 1, the assembly frame assembly 1 is composed of a transverse part and a longitudinal part, and can be composed of one transverse part and two longitudinal parts, or two transverse parts and two longitudinal parts, to adapt to different situations, the structure composed of one transverse part and two longitudinal parts is more convenient to disassemble and install, and the structure of two transverse parts and two longitudinal parts is relatively troublesome to disassemble, but the strength after assembly is higher, the detection structure assembly 2 is arranged outside the transmission line to perform electrical line detection, the transmission line is located in the detection structure assembly 2, and large-scale detection equipment such as drones detects the transmission line, and after detecting that the line at the corresponding position is damaged, the device performs further precise detection, and detects the specific problematic part to ensure the accuracy of the detection of the damaged position of the transmission line; The detection structure assembly 2 is composed of a transverse insertion rod 201, a rotating component 205, an arc-shaped assembly frame 202 and an arc-shaped detection frame 203. The transverse insertion rod 201 is movably inserted into the longitudinal vertical rod 101, and the arc-shaped detection frame 203 is movably installed on the arc-shaped assembly frame 202, and the arc-shaped detection frame 203 rotates on the arc-shaped assembly frame 202. The arc-shaped detection frame 203 and the arc-shaped assembly frame 202 form a fully enclosed structure sleeved outside the transmission line to more comprehensively detect the transmission line. The arc-shaped detection frame 203 is provided with a structure for circuit contact. The tilt angle of the arc-shaped assembly frame 202 is changed by the rotating component 205 to adapt to the detection of the inclined transmission line. The arc-shaped detection frame 203 is movably mounted on the arc-shaped assembly frame 202, and the arc-shaped detection frame 203 slides on the arc-shaped assembly frame 202 to form a ring structure sleeved outside the power transmission line; The transverse insertion rod 201 is rotatably connected to the arc-shaped assembly frame 202 via a rotating assembly 205 , and the arc-shaped assembly frame 202 and the transverse insertion rod 201 are rotated relative to each other to adapt to power transmission lines with different inclination angles.

[0039] The assembly frame assembly 1 includes a longitudinal vertical rod 101 and a transverse assembly rod 102 movably sleeved outside the longitudinal vertical rod 101, and a transverse insertion rod 201 is movably inserted into the longitudinal vertical rod 101. There are two transverse assembly rods 102. The distance between the two longitudinal vertical rods 101 is changed by the cooperation of the two transverse assembly rods 102 to change the size of the outer frame, so that workers of different body shapes can work conveniently. A transverse limiting plate 105 is fixedly installed on the longitudinal vertical rod 101, and a locking bolt 104 is threadedly installed on the transverse limiting plate 105. The transverse insertion rod 201 is fixed by the locking bolt 104, and the transverse assembly rod 102 is fixed after adjustment by twisting the locking bolt 104. A gantry sliding frame 103 is fixedly mounted on the transverse assembly rod 102, and the gantry sliding frame 103 is sleeved on another transverse assembly rod 102. A locking bolt 104 is threadedly connected to the gantry sliding frame 103. A trapezoidal guide groove 1021 corresponding to the shape of the gantry sliding frame 103 is opened on the transverse assembly rod 102. The gantry sliding frame 103 is composed of a U-shaped part and a trapezoidal part engaged in the trapezoidal guide groove 1021. The misalignment adjustment of the two transverse assembly rods 102 is achieved by sliding the gantry sliding frame 103 on the other transverse assembly rod 102. By adjusting the two transverse assembly rods 10 2, the gantry sliding frame 103 slides on the other transverse component rod 102, and the gantry sliding frame 103 on the transverse component rod 102 moves in the trapezoidal guide groove 1021 to achieve the misalignment adjustment between the two transverse component rods 102, change the distance between the two longitudinal vertical rods, and change the position of the transverse component rod 102 on the longitudinal vertical rod 101 to achieve the distance between the upper and lower transverse component rods 102, and by twisting the locking screw 104, the rear assembly frame assembly is fixed to adjust the size of the longitudinal vertical rod 101 and the transverse component rod 102.

[0040] The structure on the back of the arc-shaped detection frame 203 is compatible with the shape of the groove opened on the arc-shaped assembly frame 202, and the cross-section of the back structure of the arc-shaped detection frame 203 is trapezoidal, which provides stability for the sliding of the arc-shaped detection frame 203. The design of the trapezoidal cross-section of the back of the arc-shaped detection frame 203 ensures that the arc-shaped detection frame 203 will not fall off during the sliding process.

[0041] The detection structure on the arc-shaped detection frame 203 is an infrared thermal imager or an ultrasonic detector. The infrared thermal imager is based on the principle of thermal radiation of objects. During the operation of the power transmission line, if there are faults such as poor contact and overload, the temperature of the faulty part will rise, resulting in thermal anomalies. The infrared thermal imager detects the infrared radiation emitted by the object and converts it into a thermal image, which intuitively displays the temperature distribution of various parts of the power transmission line, thereby discovering thermal anomalies and determining the fault location. It can perform non-contact detection and can quickly and accurately scan the power transmission line; it is not affected by electromagnetic interference, and the detection results are more reliable; it can intuitively display the temperature distribution, which is convenient for staff to quickly locate the fault point; Ultrasonic detectors: When there are gas leaks, corona discharges and other faults in the transmission line, ultrasonic signals will be generated. Ultrasonic detectors receive these ultrasonic signals and convert them into audible sounds or electrical signals for detection personnel to analyze and judge. An electrical connection component 207 is arranged between the arc detection frame 203 and the arc assembly frame 202. The electrical connection component 207 is used to power the arc detection frame 203. The electrical connection component 207 provides power for the operation of the arc detection frame 203 to ensure the normal operation of the arc detection frame 203. At the same time, the electrical connection component 207 can adapt to the movement of the arc detection frame 203 on the arc assembly frame 202, has high sensitivity to detection of faults such as gas leakage and corona, can perform detection in the energized operating state, and is easy to operate.

[0042] The electrical connection component 207 includes a rotating wheel mounting base 2071 installed on the arc assembly frame 202, and the rotating wheel mounting base 2071 is rotatably connected to a winding wheel 2072, and an electrical connection line 2073 is wound around the winding wheel 2072. The electrical connection line 2073 is electrically connected to the arc detection frame 203, and the winding wheel 2072 is rotated to realize the winding of the electrical connection line 2073 on the winding wheel 2072. The rotation of the torsion spring 2074 is used to assist the resetting of the winding wheel 2072. When the arc detection frame 203 rotates on the arc assembly frame 202, the electrical connection line 2073 is pulled out from the winding wheel 2072.

[0043] The wires on the winding wheel 2072 can connect the device to the power supply so that the device can obtain power supply and work normally. Winding the electrical connection line 2073 on the winding wheel 2072 can store the electrical connection line 2073 in an orderly manner to prevent the electrical connection line 2073 from getting tangled and messy during use. The winding wheel 2072 can also adjust the length of the electrical connection line 2073 as needed so that the electrical connection line 2073 can meet the needs in different usage scenarios.

[0044] The winding wheel 2072 is rotatably connected to the rotating wheel mounting seat 2071 via a rotating shaft, and a torsion spring 2074 is arranged outside the rotating shaft at the connection position between the two, one end of the torsion spring 2074 is fixed outside the rotating shaft and the other end is fixed outside the rotating wheel mounting seat 2071.

[0045] The arc-shaped assembly frame 202 and the arc-shaped detection frame 203 are coaxially arranged to ensure the rotation of the arc-shaped detection frame 203 in the arc-shaped assembly frame 202 .

[0046] The upper and lower ends of the arc-shaped assembly frame 202 are both provided with fixing components 204 for fixing the arc-shaped detection frame 203 after it is rotated on the arc-shaped assembly frame 202 .

[0047] The fixing assembly 204 includes a mounting kit 2041 fixed on the arc-shaped detection frame 203, and an end fixing strip 2042 is fixedly installed on one end of the mounting kit 2041 away from the arc-shaped detection frame 203; A telescopic pressure block 2044 is movably installed in the installation kit 2041, and a reset spring 2043 is arranged between the telescopic pressure block 2044 and the end fixing strip 2042 for connection. A fixing groove 2045 corresponding to the shape of the telescopic pressure block 2044 is opened on the arc detection frame 203. The telescopic pressure block 2044 is telescoped in the installation kit 2041, and the telescopic pressure block 2044 is popped out with the assistance of the reset spring 2043. The telescopic pressure block 2044 is engaged in the fixing groove 2045 to fix the arc detection frame 203 after rotation.

[0048] The moving stroke of the arc detection frame 203 on the arc assembly frame 202 is equal to the degree of the center angle of the minor arc between the two arc assembly frames 202 .

[0049] The arc-shaped detection rack 203 and the arc-shaped assembly rack 202 are two groups, and the two groups of arc-shaped detection racks 203 and arc-shaped assembly racks 202 are arranged symmetrically.

[0050] A connecting mechanism 206 is provided between the two groups of arc-shaped detection frames 203 for fixing. A fixed mounting seat 2061 is fixedly mounted on the arc-shaped detection frame 203. An arc-shaped insert 2062 is movably mounted in the fixed mounting seat 2061. A threaded rotatable connection 2063 is provided on the fixed mounting seat 2061. The arc-shaped insert 2062 is telescopically movable in the fixed mounting seat 2061, thereby realizing the fixation and separation of the two arc-shaped detection frames 203, and realizing the synchronous rotation of the two arc-shaped detection frames 203.

[0051] The rotating assembly 205 includes a rotatable sleeve 2051 rotatably mounted on the transverse insertion rod 201, an annular buckle 2052 is provided between the rotatable sleeve 2051 and the transverse insertion rod 201, a support spring 2053 sleeved on the transverse insertion rod 201 is provided between the annular buckle 2052, a positioning toothed ring 2054 is movably inserted in the rotatable sleeve 2051, and the positioning toothed ring 2054 is installed on the arc-shaped assembly frame 202 through a connecting seat 2055, and a tooth groove corresponding to the positioning toothed ring 2054 is provided in the rotatable sleeve 2051 to ensure the docking and engagement effect of the rotatable sleeve 2051 and the positioning toothed ring 2054, and can be supported by the support spring 2053. 53 is used to assist the resetting of the rotatable sleeve 2051, and the rotatable sleeve 2051 is pulled to allow the rotatable sleeve 2051 to push the supporting spring 2053 to deform, and the positioning toothed ring 2054 is rotated, and the positioning toothed ring 2054 rotates on the transverse insertion rod 201 to adjust the inclination angle of the arc assembly frame 202 and the arc detection frame 203. After the inclination angle adjustment of the arc assembly frame 202 and the arc detection frame 203 is completed, the rotatable sleeve 2051 is loosened, and the rotatable sleeve 2051 subjected to the elastic force of the supporting spring 2053 pops out and is engaged on the positioning toothed ring 2054, thereby realizing the fixation of the arc assembly frame 202 and the arc detection frame 203 after adjustment.

[0052] Working principle: The first step: according to the thickness of the transmission line, the components on the assembly frame assembly 1 and the monitoring structure assembly 2 are adjusted to adapt to transmission lines of different thicknesses and also to adapt to transmission lines of different inclined structures.

[0053] Step 2: When adapting to transmission lines of different thicknesses, this is achieved by adjusting the two transverse component rods 102, and the gantry sliding frame 103 slides on the other transverse component rod 102. At the same time, the gantry sliding frame 103 on the transverse component rod 102 moves in the trapezoidal guide groove 1021 to achieve the misalignment adjustment between the two transverse component rods 102, and change the distance between the two longitudinal vertical rods. By changing the position of the transverse component rod 102 on the longitudinal vertical rod 101, the distance between the upper and lower transverse component rods 102 is achieved, and the fixing of the rear assembly frame assembly is achieved by twisting the locking screw 104. The size of the frame composed of the longitudinal vertical rod 101 and the transverse component rod 102 is adjusted to adapt to different usage conditions, to adapt to people of different body shapes, and to adapt to different usage environments.

[0054] Step 3: Pull the rotatable sleeve 2051 to push the supporting spring 2053 to deform, and rotate the positioning tooth ring 2054 so that the positioning tooth ring 2054 rotates on the transverse insertion rod 201 to adjust the inclination angle of the arc assembly frame 202 and the arc detection frame 203. After the inclination angle of the arc assembly frame 202 and the arc detection frame 203 is adjusted, loosen the rotatable sleeve 2051, and the rotatable sleeve 2051 is ejected by the elastic force of the supporting spring 2053 and is engaged with the positioning tooth ring 2054, so that the arc assembly frame 202 and the arc detection frame 203 are fixed after adjustment to adapt to power transmission lines with different inclined structures.

[0055] Step 4: The arc assembly frame 202 and the arc detection frame 203 are set outside the power transmission line. The arc detection frames 203 are connected by the connecting mechanism 206. The arc insert 2062 is pulled out from the fixed mounting seat 2061, and the arc insert 2062 is inserted into another fixed mounting seat 2061. The arc insert 2062 is fixed by screwing the fixing bolt 2063 to achieve synchronous adjustment of the two sets of arc detection frames 203. When the arc detection frame 203 rotates, the electric connection line 2073 is driven from the winding wheel 2 072 is pulled out and the torsion spring 2074 is pulled to deform to assist the subsequent resetting of the winding wheel 2072. After the arc detection frame 203 is pulled out from the arc assembly frame 202, the telescopic pressure block 2044 contacts the back of the arc detection frame 203, and the telescopic pressure block 2044 is engaged in the fixing groove 2045 to realize the fixation of the arc detection frame 203 after rotation. The structure composed of the arc assembly frame 202 and the arc detection frame 203 moves outside the power transmission line, and the power transmission line is detected through the structure on the arc detection frame 203.

[0056] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some of the technical features therein. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. A transmission line electrical fault detection device, characterized in that: It includes an assembly frame assembly and a detection structure assembly movably mounted on the assembly frame assembly, wherein the detection structure assembly is set outside the power transmission line to perform power line detection; The detection structure assembly is composed of a transverse insertion rod, a rotating assembly, an arc-shaped assembly frame and an arc-shaped detection frame; The arc-shaped detection frame is movably mounted on the arc-shaped assembly frame, and the arc-shaped detection frame slides on the arc-shaped assembly frame to form an annular structure sleeved outside the power transmission line; The transverse insertion rod is rotatably connected to the arc-shaped assembly frame through a rotating assembly, and the transmission lines with different inclination angles are adapted through the mutual rotation between the arc-shaped assembly frame and the transverse insertion rod.

2. A transmission line electrical fault detection device according to claim 1, characterized in that: The structure on the back of the arc-shaped detection frame is adapted to the shape of the slot on the arc-shaped assembly frame, and the cross-section of the structure on the back of the arc-shaped detection frame is trapezoidal, which provides stability for the sliding of the arc-shaped detection frame.

3. A transmission line electrical fault detection device according to claim 2, characterized in that: The assembly frame assembly includes a longitudinal vertical rod and a transverse assembly rod movably sleeved outside the longitudinal vertical rod, and the transverse insertion rod is movably inserted into the longitudinal vertical rod, a transverse limit plate is fixedly installed on the longitudinal vertical rod, a locking bolt is threadedly installed on the transverse limit plate, and the transverse insertion rod is fixed by the locking bolt; A gantry sliding frame is fixedly mounted on the transverse assembly rod, the gantry sliding frame is sleeved on another transverse assembly rod, a locking bolt is threadedly connected to the gantry sliding frame, and a trapezoidal guide groove corresponding to the shape of the gantry sliding frame is opened on the transverse assembly rod.

4. A transmission line electrical fault detection device according to claim 3, characterized in that: An electrical connection component is provided between the arc detection frame and the arc assembly frame, and the electrical connection component is used for powering the arc detection frame. The electrical connection component includes a rotating wheel mounting seat mounted on the arc assembly frame, and a winding wheel is rotatably connected to the rotating wheel mounting seat, and an electrical connection line is wound around the winding wheel; The electrical connection line is electrically connected to the arc-shaped detection frame.

5. A transmission line electrical fault detection device according to claim 4, characterized in that: The winding wheel is rotatably connected to the rotating wheel mounting seat through a rotating shaft, and a torsion spring is arranged outside the rotating shaft at the connecting position of the two, one end of the torsion spring is fixed outside the rotating shaft and the other end is fixed outside the rotating wheel mounting seat.

6. A transmission line electrical fault detection device according to claim 5, characterized in that: The arc-shaped assembly frame and the arc-shaped detection frame are coaxially arranged to ensure the rotation of the arc-shaped detection frame in the arc-shaped assembly frame.

7. A transmission line electrical fault detection device according to claim 6, characterized in that: The upper end and the lower end of the arc-shaped assembly frame are both provided with fixing components for fixing the arc-shaped detection frame after it is rotated on the arc-shaped assembly frame.

8. A transmission line electrical fault detection device according to claim 7, characterized in that: The fixing assembly comprises a mounting kit fixed on the arc-shaped detection frame, and an end fixing strip is fixedly mounted on one end of the mounting kit away from the arc-shaped detection frame; A telescopic pressing block is movably installed in the installation kit, and a return spring is arranged between the telescopic pressing block and the end fixing strip for connection. A fixing groove corresponding to the shape of the telescopic pressing block is opened on the arc-shaped detection frame.

9. A transmission line electrical fault detection device according to claim 8, characterized in that: The moving stroke of the arc detection frame on the arc assembly frame is equal to the degree of the center angle of the minor arc between the two arc assembly frames.

10. A transmission line electrical fault detection device according to claim 9, characterized in that: The arc-shaped detection rack and the arc-shaped assembly rack are in two groups, and the two groups of arc-shaped detection racks and arc-shaped assembly racks are arranged in a bilaterally symmetrical manner.

11. A transmission line electrical fault detection device according to claim 10, characterized in that: A connecting mechanism is arranged between the two groups of arc-shaped detection frames for fixing. A fixed mounting seat is fixedly mounted on the arc-shaped detection frame, an arc-shaped insert is movably mounted in the fixed mounting seat, and a threaded rotatable connection is provided on the fixed mounting seat.

12. A transmission line electrical fault detection device according to claim 11, characterized in that: The rotating assembly includes a rotatable sleeve rotatably mounted on the transverse insertion rod, an annular buckle is arranged between the rotatable sleeve and the transverse insertion rod, a supporting spring sleeved on the transverse insertion rod is arranged between the annular buckles, a positioning gear ring is movably inserted in the rotatable sleeve, and the positioning gear ring is mounted on the arc-shaped assembly frame through a connecting seat.

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