A monitoring device for protecting transmission line icing overload

Abstract

The application provides an ice-coating overload protection monitoring device for a power transmission line, comprising a power transmission line, a fixed node, an ice-removing node, a signal transmitter and a signal receiver; the fixed node and the ice-removing node are used for installing the power transmission line; the ice-removing node comprises an ice-removing device; the ice-removing device comprises a connecting assembly connected to a suspension insulator, an energy storage assembly, a wire clamp releasing assembly and a wire clamp connected to the power transmission line; the signal transmitter is installed on the energy storage assembly; in an initial installation state, the wire clamp and the wire clamp releasing assembly are limited to each other; the energy storage assembly stores energy during the ice-coating process; when the ice-coating threshold is reached at the ice-removing node, the wire clamp and the wire clamp releasing assembly are released from the mutual limitation and the energy storage assembly is restored and triggers the signal transmitter to send a signal. The device has simple structure and wiring, less monitoring point layout, low monitoring cost and difficulty, the ice-removing device in the monitoring device has simple structure and is convenient to install, needs no additional power supply except for a small lithium battery and can work without professional operation, and the operation difficulty is low.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of overhead line deicing monitoring, and particularly relates to an overload protection monitoring device for ice-coated power transmission lines. BACKGROUND

[0002] In the power industry, the icing phenomenon of power transmission lines due to natural factors is called icing, which can significantly increase the mechanical load of the tower, power transmission line, connecting hardware and insulator string, leading to insulator flashover, line dancing and even tower tilting. With the accumulation of ice, it may also cause serious accidents such as wire breakage and tower collapse, posing a great threat to the mechanical and electrical safety of power transmission lines. Therefore, it is crucial to develop effective protection and deicing schemes for iced lines.

[0003] However, common deicing monitoring devices require the collection of real-time weight of power transmission lines, tower inclination, and suspension insulator inclination, and multiple and various sensors need to be arranged to meet the real-time transmission of required parameters. Through data analysis, the degree of icing can be determined, and deicing equipment can be used in time for deicing. The structure and wiring are complex, and when a sensor fails, data errors or judgment failures may occur, leading to delayed deicing and increased safety risks. Moreover, the use of multiple sensors further increases the risk. At the same time, the transmission distance of existing sensors is limited, resulting in a large number of monitoring point layouts, high monitoring cost and difficulty. In addition, existing deicing equipment has limitations such as complex structure, large size, dependence on additional energy, and the need for professional operation. In remote mountainous areas and other areas with difficult operation and maintenance, due to the lack of real-time and effective icing monitoring means, measures are often not taken until the ice thickness has exceeded the safety limit, at which point the line may have suffered irreversible damage. SUMMARY

[0004] The present application provides an overload protection monitoring device for ice-coated power transmission lines that is simple in structure, avoids complex wiring, reduces the number of monitoring point layouts, and reduces monitoring cost and difficulty. The deicing equipment used in the monitoring device is simple in structure and easy to install, only requires a small lithium battery to drive the signal transmitter, and the mechanical structure of the deicing equipment does not require additional power supply and can work without the need for professional operation, which is low in difficulty.

[0005] To achieve the above-mentioned purpose, the technical solution adopted by the present application is as follows: an overload protection monitoring device for ice-coated power transmission lines, comprising a power transmission line, at least two fixed nodes, at least one deicing node, at least one signal transmitter and a signal receiver; the at least two fixed nodes and the at least one deicing node are used to install the power transmission line, and the signal receiver is used to receive the signal of the at least one signal transmitter; the at least one deicing node corresponds to the at least one signal transmitter one by one.

[0006] The deicing node comprises a deicing device; the deicing device comprises a connecting assembly, an energy storage assembly, a wire buckle releasing assembly and a wire buckle; the connecting assembly is used for connecting a suspension insulator, and the wire buckle is used for connecting a power transmission line; the signal transmitter is mounted on the energy storage assembly;

[0007] In an initial installation state, the wire buckle and the wire buckle releasing assembly are limited to each other; in the process of icing of the power transmission line at the deicing node, the energy storage assembly is energized; when the icing on the power transmission line at the deicing node reaches an icing threshold, the energy storage assembly acts on the wire buckle releasing assembly, so that the mutual limitation of the wire buckle and the wire buckle releasing assembly is released, and the energy storage assembly restores and triggers the signal transmitter to send a signal.

[0008] In some embodiments, the energy storage assembly comprises a first connecting unit, a second connecting unit and an energy storage spring; the first connecting unit comprises a first end and a second end, the second connecting unit comprises a third end and a fourth end, the signal transmitter is mounted on the third end, the first end is fixedly connected with the connecting assembly, the fourth end is fixedly connected with the wire buckle releasing assembly, and the energy storage spring is arranged between the second end and the third end; the wire buckle releasing assembly comprises a plug-in slot and a limiting block; when the wire buckle is mounted in the plug-in slot and the limiting block is located at a first position, the wire buckle and the wire buckle releasing assembly are limited to each other; in the process of icing of the power transmission line at the deicing node, the second connecting unit moves in a first direction, and the energy storage spring is elastically deformed; when the icing on the power transmission line at the deicing node reaches an icing threshold, under the action of the energy storage assembly, the limiting block moves from the first position to a second position; when the limiting block moves to the second position, the mutual limitation of the wire buckle and the wire buckle releasing assembly is released;

[0009] In use, when the limiting block moves to the second position, the wire buckle is pulled out of the plug-in slot, and the energy storage spring restores to drive the second connecting unit to move in a second direction and trigger the signal transmitter to send a signal; the second direction is opposite to the first direction.

[0010] In some embodiments, when the wire buckle comprises a fifth end, when the wire buckle is mounted in the plug-in slot, the fifth end is located at a third position;

[0011] When the wire clamp is installed, the fifth end enters the insertion slot and moves towards the third position; when the fifth end moves to the fourth position, the fifth end abuts against the limiting block at the first position; when the fifth end moves from the fourth position to the third position, the fifth end pushes the limiting block to move from the first position to the second position; when the fifth end moves to the third position, the limiting block moves from the second position to the first position.

[0012] In some embodiments, when the energy storage spring recovers and drives the second connecting unit to move in the second direction, the limiting block moves from the second position to the first position.

[0013] In some embodiments, the wire clamp release assembly further comprises a mounting box, the limiting block is rotationally connected with the mounting box along a first axis; when the limiting block moves from the first position to the second position, the limiting block rotates along the first axis in a third direction; when the limiting block moves from the second position to the first position, the limiting block rotates along the first axis in a fourth direction.

[0014] In some embodiments, the limiting block comprises a sixth end and a seventh end, the first axis is located at the sixth end, when the limiting block rotates along the first axis in the third direction, the seventh end swings around the first axis, and the seventh end is used for limiting the wire clamp.

[0015] The limiting block further comprises an eighth end, when the energy storage spring elastically deforms, the eighth end drives the limiting block to move from the first position to the second position.

[0016] In some embodiments, the wire clamp release assembly further comprises a fifth connecting rod and a tension spring, the fifth connecting rod comprises a ninth end and a tenth end, the ninth end is hingedly connected with the eighth end, one end of the tension spring is connected to the mounting box, and the other end of the tension spring is connected between the ninth end and the tenth end; when the ice on the power transmission line at the deicing node reaches an ice threshold, the tenth end drives the limiting block to move from the first position to the second position through the eighth end.

[0017] In some embodiments, the deicing device further comprises a linkage assembly, the linkage assembly comprises a first connecting rod, a second connecting rod, a third connecting rod, and a fourth connecting rod.

[0018] One end of the first connecting rod is fixedly connected with the connecting assembly, one end of the third connecting rod is fixedly connected with the third end, one end of the second connecting rod is hingedly connected with the other end of the first connecting rod, the other end of the second connecting rod is hingedly connected with one end of the fourth connecting rod, the other end of the third connecting rod is slidingly fitted with the second connecting rod along the longitudinal direction of the second connecting rod, and the other end of the fourth connecting rod is connected with the tenth end.

[0019] In some embodiments, the linkage assembly further comprises a locking ring for positioning the position where the fourth connecting rod is connected with the tenth end.

[0020] In some embodiments, when the number of deicing nodes corresponding to the nearest fixed node is at least two, the icing threshold values at the at least two deicing nodes corresponding to the nearest fixed node are distributed in a stepped manner, the nearest fixed node being the fixed node closest to the deicing nodes; the icing threshold value at the deicing node close to the nearest fixed node is greater than the icing threshold value at the deicing node away from the nearest fixed node.

[0021] Compared with the prior art, the present application has the following beneficial effects:

[0022] 1. The present disclosure sets deicing equipment triggered by ice weight on the deicing node to make the transmission line fall off, and sets a signal transmitter on the deicing equipment which can be triggered by the energy storage assembly to emit signals. The shaking caused by the falling of the transmission line can achieve the effect of automatic deicing, and the signal transmitter emits signals to remind the operating personnel to carry out subsequent processing, which can timely eliminate the safety risk of the tower of the deicing node caused by icing, has a simple structure and avoids complex wiring, and compared with the sensor, the signal transmitter has long-distance communication capability, which can reduce the number of monitoring point layouts, reduce monitoring cost and monitoring difficulty;

[0023] 2. The deicing equipment structure in the present disclosure is simple and convenient to install, only needs to realize the mutual positioning of the wire buckle and the wire buckle release assembly in the initial installation state, the energy storage of the energy storage assembly in the process of transmission line icing, and the mutual positioning release of the wire buckle and the wire buckle release assembly when the icing reaches the icing threshold value, and the recovery and triggering of the signal transmitter to send signals, only needs a small lithium battery to drive the signal transmitter, the deicing equipment mechanical structure does not need additional power supply, and can work without professional operation, has low operation difficulty, and can ensure the safety of the transmission line and the tower. BRIEF DESCRIPTION OF DRAWINGS

[0024] Figure 1 It is a structural schematic view of the transmission line icing overload protection monitoring device of the present disclosure;

[0025] Figure 2Connection structure schematic diagram of the deicing node of the present disclosure;

[0026] Figure 3 Connection structure schematic diagram of the fixed node of the present disclosure;

[0027] Figure 4 Front view of the deicing device of the present disclosure;

[0028] Figure 5 Left view of the deicing device of the present disclosure;

[0029] Figure 6 Top view of the deicing device of the present disclosure;

[0030] Figure 7 Exploded view of the deicing device of the present disclosure;

[0031] Figure 8 Structure schematic diagram of the energy storage assembly in the present disclosure;

[0032] Figure 9 Structure schematic diagram of the first fixed plate in the present disclosure;

[0033] Figure 10 Structure schematic diagram of the linkage assembly in the present disclosure;

[0034] Figure 11 Structure schematic diagram of the wire buckle release assembly in the present disclosure;

[0035] Figure 12 Structure schematic diagram of the fourth fixed plate in the present disclosure;

[0036] Figure 13 Position relationship schematic diagram of the wire buckle installed in the plug-in slot and the limiting block located at the first position in the present disclosure;

[0037] Figure 14 Position relationship schematic diagram of the limiting block and the wire buckle when the limiting block is located at the second position in the present disclosure;

[0038] Figure 15 Position relationship schematic diagram of the limiting block and the wire buckle when the fifth end of the wire buckle is located at the fourth position in the present disclosure;

[0039] Figure 16 Position relationship schematic diagram of the limiting block and the wire buckle when the fifth end of the wire buckle moves from the fourth position to the third position in the present disclosure;

[0040] Figure 17 Perspective view of the connection relationship between the wire buckle release assembly and the wire buckle in the present disclosure;

[0041] Figure 18The schematic diagram from left to right in the disclosure is initial installation state, energy storage component energy storage process, energy storage component reaches energy storage limit state, and energy storage component energy release state.

[0042] Wherein, the reference signs are: 1000, deicing device; 100, connecting assembly; 110, connecting buckle; 111, hinged hole; 120, first fixed plate; 121, first plate body; 122, first through hole; 123, second through hole; 124, first clamping groove; 125, third through hole; 126, fourth through hole; 200, wire buckle; 210, third connecting hole; 211, limiting groove; 212, first surface; 213, second surface; 214, advancing end; 215, third surface; 300, energy storage component; 301, first end; 302, second end; 303, third end; 304, fourth end; 310, second fixed plate; 320, first light rod; 330, third fixed plate; 340, energy storage spring; 350, second light rod; 360, buffer block; 400, linkage assembly; 410, first connecting rod; 420, second connecting rod; 421, sliding hole; 430, third connecting rod; 440, fourth connecting rod; 450, locking ring; 460, anti-slip blocking piece; 500, wire buckle release assembly; 510, fifth connecting rod; 520, mounting box; 521, box body; 522, cover plate; 523, mounting groove; 5231, plug-in groove; 5232, rotating groove; 524, U-shaped buckle; 525, fixed part; 530, tension spring; 540, limiting block; 541, first shaft hole; 542, second shaft hole; 543, first arc surface; 544, second arc surface; 545, fourth surface; 550, first connecting shaft; 551, second connecting hole; 560, roller; 570, fourth connecting shaft; 580, fifth connecting shaft; 590, fourth fixed plate; 591, second plate body; 592, fifth through hole; 593, sixth through hole; 594, second clamping groove; 595, seventh through hole; 600, wire clamp; 700, overhead insulator; 2000, power transmission line; 3100, signal receiver; 3200, signal transmitter; 3300, first fixed node; 3400, deicing node; 3500, second fixed node; A, first direction; B, second direction; C, third direction; D, fourth direction. DETAILED DESCRIPTION

[0043] In order to clearly illustrate the technical features of the scheme, the embodiments of the application will be described in detail below in combination with the drawings and examples, so that the implementation process of how to apply technical means to solve the technical problems and achieve the corresponding technical effects can be fully understood and implemented. The embodiments of the application and the various features in the examples can be combined without conflict, and the formed technical solutions are within the protection scope of the application.

[0044] The embodiment of the present disclosure provides an ice overload protection monitoring device for a power transmission line, which comprises a power transmission line 2000, at least two fixed nodes, at least one deicing node 3400, at least one signal transmitter 3200 and a signal receiver 3100; see Figure 1 The at least two fixed nodes and the at least one deicing node 3400 are used for installing the power transmission line 2000, in actual application, the fixed nodes and the deicing node 3400 are used for installing the power transmission line 2000 on a tower, and the signal receiver 3100 is used for receiving signals of the at least one signal transmitter 3200; see Figure 2 The at least one deicing node 3400 corresponds to the at least one signal transmitter 3200 one by one, in actual application, the signal transmitter 3200 at each deicing node 3400 is numbered;

[0045] The fixed nodes comprise a first fixed node 3300 and a second fixed node 3500, the tower at the first fixed node 3300 is a terminal tower, and the tower at the second fixed node 3500 comprises a strain tower, a corner tower and part of a span tower, when the power transmission line 2000 installed at the span tower falls off, a safety problem and the like is caused at an obstacle, for example, the obstacle crossed by the span tower is a railway and the falling of the power transmission line 2000 affects the safe operation of the railway, and the span tower is the tower at the second fixed node 3500; see Figure 3 At the fixed node, the power transmission line 2000 is installed on a suspension insulator 700, so as to prevent the power transmission line from falling off at the fixed node; usually, the power transmission line 2000 is installed on the suspension insulator 700 through a wire clamp 600;

[0046] The tower at the deicing node 3400 comprises a straight tower, a transposition tower and part of a span tower, when the power transmission line installed at the span tower falls off, a safety problem and the like is not caused at an obstacle, for example, the obstacle crossed by the span tower is a river, and the span tower is the tower at the deicing node 3400;

[0047] The deicing node 3400 comprises a deicing device 1000; the deicing device 1000 comprises a connecting assembly 100, an energy storage assembly 300, a wire clamp releasing assembly 500 and a wire clamp 200; the connecting assembly 100 is used for connecting the suspension insulator 700, the wire clamp 200 is used for connecting the power transmission line 2000, usually, the power transmission line 2000 is installed on the wire clamp 200 through the wire clamp 600; and the signal transmitter 3200 is installed on the energy storage assembly 300;

[0048] In the initial installation state, the wire buckle 200 is limited by the wire buckle release assembly 500; in the process of icing of the power transmission line 2000 at the deicing node 3400, the energy storage assembly 300 stores energy; when the icing on the power transmission line 2000 at the deicing node 3400 reaches the icing threshold, the energy storage assembly 300 acts on the wire buckle release assembly 500, so that the mutual limitation of the wire buckle 200 and the wire buckle release assembly 500 is released, at this time the wire buckle 200 is tripped to drive the power transmission line at the deicing node 3400 to fall off, so that the power transmission line 2000 at the deicing point shakes, thereby removing the icing on the power transmission line 2000 at the deicing point, and the energy storage assembly 300 restores and triggers the signal transmitter 3200 to send a signal, when the signal receiver 3100 receives the signal of the signal transmitter 3200, the position of the deicing node 3400 is determined according to the number, and the work personnel reinstall the fallen power transmission line 2000 according to the position of the deicing node 3400, at this time the icing on the power transmission line 2000 has been removed, and the initial installation state is restored after installation.

[0049] Beneficially, by setting the deicing device 1000 triggered by the weight of the icing to make the power transmission line fall off at the deicing node 3400 to achieve timely deicing, and setting the signal transmitter 3200 triggered by the energy storage assembly 300 to restore the signal transmitter 3200 on the deicing device 1000 to remind the work personnel to perform subsequent processing, the shaking caused by the falling of the power transmission line can achieve the effect of automatic deicing, and the safety risk of the tower of the deicing node 3400 caused by icing can be timely removed, the structure is simple and avoids complex wiring, and at the same time, the signal transmitter 3200 has long-distance communication capability compared with the sensor, which can reduce the number of monitoring point layouts, reduce monitoring cost and monitoring difficulty; the deicing device 1000 only needs to realize the mutual limitation of the wire buckle 200 and the wire buckle release assembly 500 in the initial installation state, the energy storage of the energy storage assembly 300 in the process of icing of the power transmission line 2000, and the mutual limitation of the wire buckle 200 and the wire buckle release assembly 500 when the icing reaches the icing threshold, and the energy storage assembly 300 restores and triggers the signal transmitter 3200 to send a signal, only a small lithium battery is needed to drive the signal transmitter, the mechanical structure of the deicing device 1000 does not need additional power supply, and it can work without professional operation, the operation difficulty is low, and the safety of the power transmission line 2000 and the tower can be ensured.

[0050] In some embodiments, when the number of de-icing nodes corresponding to the nearby fixed node is at least two, the icing threshold at the at least two de-icing nodes 3400 corresponding to the nearby fixed node is distributed in a stepped manner. The nearby fixed node is the fixed node closest to the de-icing node 3400. When the fixed node closest to the de-icing node 3400 is two, that is, assuming that the de-icing node 3400 is between the fixed node α and the fixed node β, a de-icing node γ is arranged at the midpoint between the fixed node α and the fixed node β. The nearby fixed node of the de-icing node γ is the fixed node α and the fixed node β. The nearby fixed node corresponding to the de-icing node between the de-icing node γ and the fixed node α is the fixed node α. The nearby fixed node corresponding to the de-icing node between the de-icing node γ and the fixed node β is the fixed node β. The icing threshold of the de-icing node γ and all de-icing nodes between the de-icing node γ and the fixed node α is distributed in a stepped manner. The icing threshold of the de-icing node γ and all de-icing nodes between the de-icing node γ and the fixed node β is distributed in a stepped manner. The icing threshold of the de-icing node 3400 close to the nearby fixed node is greater than the icing threshold of the de-icing node 3400 far from the nearby fixed node.

[0051] Beneficially, setting the icing threshold of the de-icing node 3400 corresponding to the nearby fixed node in a stepped manner can reduce the probability of simultaneous shedding of the power transmission line 2000 at multiple de-icing nodes 3400 between adjacent two fixed nodes. In addition, when the power transmission line shedding phenomenon occurs simultaneously or successively at adjacent multiple de-icing nodes 3400, that is, the corresponding signal transmitter 3200 sends signals simultaneously or successively, it can be judged that the icing at the adjacent multiple de-icing nodes 3400 is serious, and the monitor needs to pay further attention or take reasonable subsequent processing.

[0052] Further, at least one de-icing node 3400 is arranged between adjacent two fixed nodes to ensure timely handling of overload icing on the power transmission line 2000 between the two fixed nodes.

[0053] Referring to Figure 2 , 18 The de-icing device 1000 is installed between the suspension insulator 700 and the power transmission line 2000. The connecting assembly 100 includes a connecting buckle 110 and a first fixed plate 120. The connecting buckle 110 is used to connect the device as a whole with the suspension insulator 700. The first fixed plate 120 is used to connect the connecting buckle 110 with the energy storage assembly 300. The connecting buckle 110 and the first fixed plate 120 are fixedly connected.

[0054] Referring to Figure 7 , 9The first fixed plate 120 comprises a first plate body 121, a first through hole 122 in the shape of a strip is formed in the middle of the first plate body 121, the connecting buckle 110 is in the shape of T, the longitudinal part of the T-shaped part penetrates through the first through hole 122, a hinged hole 111 is formed in the outer end of the longitudinal part of the T-shaped part, the hinged hole 111 is connected with the suspension insulator 700, a third through hole 125 is formed on both sides of the first through hole 122, the transverse ends of the T-shaped part pass through the third through holes 125 respectively and are fixed by bolts;

[0055] The energy storage assembly 300 comprises a first connecting unit, a second connecting unit and an energy storage spring 340, the first connecting unit comprises a first end 301 and a second end 302, the second connecting unit comprises a third end 303 and a fourth end 304, a signal transmitter 3200 is installed on the third end 303, the first end 301 is fixedly connected with the connecting assembly 100, the fourth end 304 is fixedly connected with the wire buckle releasing assembly 500, the energy storage spring 340 is arranged between the second end 302 and the third end 303, the energy storage spring 340 can react to the change of force caused by the change of relative position between the first connecting unit and the second connecting unit, and then trigger the signal transmitter 3200 to send a signal; the wire buckle releasing assembly 500 comprises a plug-in groove 5231 and a limiting block 540;

[0056] Referring to Figure 13 、 17 When the wire buckle 200 is installed in the plug-in groove 5231 and the limiting block 540 is located at the first position, the wire buckle 200 and the wire buckle releasing assembly 500 are limited to each other, at this time, it is the initial installation state, when the ice on the power transmission line 2000 is covered, the weight of the power transmission line 2000 is increased, the power transmission line 2000 drives the wire buckle 200 to move downward or obliquely downward, at this time, the wire buckle 200 is limited in the plug-in groove 5231 by the limiting block 540, the wire buckle 200 and the wire buckle releasing unit are limited to each other, the wire buckle releasing unit drives the second connecting unit to move downward or obliquely downward with the wire buckle 200 and the power transmission line 2000, and the relative movement between the second connecting unit and the first connecting unit occurs;

[0057] In the process of deicing the ice on the power line 2000 at the deicing node 3400, the second connecting unit moves in the first direction A. In actual use, the first direction A is the same as the direction in which the power line 2000 moves downward or obliquely downward when the power line 2000 is covered with ice and drives the wire clamp 200 to move downward, that is, the second connecting unit moves in the first direction A under the driving of the wire clamp releasing unit at the fourth end 304, and the energy storage spring 340 is elastically deformed. This process will cause the energy storage spring 340 to store energy, provide energy reserves for the wire clamp 200 to disengage, and trigger the signal transmitter 3200 to reset the second connecting unit. In this process, the limiting block 540 is always located at the first position, and the wire clamp 200 and the wire clamp releasing unit are limited to each other; when the ice on the power line 2000 at the deicing node 3400 reaches the ice threshold, the limiting block 540 moves from the first position to the second position under the action of the energy storage assembly 300. When the limiting block 540 moves to the second position, the mutual limitation of the wire clamp 200 and the wire clamp releasing assembly 500 is removed. At this time, the wire clamp 200 can be pulled out of the insertion slot 5231 at any time, and the energy storage assembly 300 reaches the energy storage limit state at this time.

[0058] In use, when the limiting block 540 moves from the first position to the second position, that is, when the ice on the power line 2000 reaches the ice threshold, the wire clamp 200 is pulled out of the insertion slot 5231, and the energy storage spring 340 restores to drive the second connecting unit to move in the second direction B and trigger the signal transmitter 3200 to send a signal. The second direction B is opposite to the first direction A. Since the wire clamp 200 is dragged by the power line 2000 covered with ice, and the wire clamp releasing unit is dragged by the energy recovered by the energy storage spring 340, the wire clamp 200 falls off with the power line, and the energy storage assembly 300 and the wire clamp releasing unit return to the initial state. At this time, the energy storage assembly 300 is in an energy release state, and the signal transmitter 3200 can be triggered to send a signal. At this time, the wire clamp 200 falls off, causing the power line 2000 to drop, thereby removing the ice on the power line 2000. The signal transmitter 3200 can use an SX1276 LoRa wireless transmission module and a photoelectric switch to form a signal transmitter, which has a low cost and a transmission distance of 10 to 20 km in a mountainous or open environment. In application, the signal transmitter 3200 is used to measure the distance between the first end and the third end. When the distance between the first end and the third end changes suddenly, it is confirmed that the signal sent is an ice overload signal. The signal transmitter 3200 sends data twice a day, and is in deep sleep at other times. It is expected to work for more than 5 years.

[0059] Beneficially, the deicing device 1000 only needs to be connected between the suspension insulator 700 and the power transmission line 2000, and the deicing device 1000 mechanical structure does not need additional power supply except for the small lithium battery driving the signal transmitter, and can work without professional operation. When the ice thickness on the power transmission line 2000 reaches the ice threshold, the power transmission line 2000 is tripped with the line clamp 200 to fall off to remove the ice on the power transmission line 2000, thereby preventing the power transmission line 2000 and the tower from bearing dangerous stress, i.e. the protection mechanism can be automatically triggered when the ice thickness reaches the ice threshold, ensuring the safety of the power transmission line 2000 and the tower.

[0060] In some embodiments, when the line clamp 200 includes a fifth end, the fifth end is located at the third position when the line clamp 200 is installed in the insertion slot 5231;

[0061] When the line clamp 200 is installed, the fifth end enters the insertion slot 5231 and moves towards the third position; when the fifth end moves to the fourth position, the fifth end abuts against the limiting block 540 located at the first position; when the fifth end moves from the fourth position to the third position, the fifth end pushes the limiting block 540 to move from the first position to the second position; when the fifth end moves to the third position, the limiting block 540 moves from the second position to the first position.

[0062] Referring to Figure 15 、 16 , the line clamp 200 is in the shape of a strip, one longitudinal end of the line clamp 200 is the fifth end, and the other longitudinal end of the line clamp 200 is provided with a third connecting hole 210 for connecting the power transmission line 2000. The end of the line clamp 200 close to the third connecting hole 210 is provided with a first face 212 and a second face 213 on the two sides in the transverse direction, respectively. The first face 212 extends to the fifth end, and the first face 212 always abuts against one side wall of the insertion slot 5231 during the process of installing the line clamp 200 until it is installed in place, i.e. the fifth end is located at the third position. The side opposite to the first face 212 at the fifth end is provided with a third face 215, and a limiting groove 211 is provided between the second face 213 and the third face 215 on the side opposite to the first face 212. A pushing end 214 is provided at the intersection of the end face of the fifth end and the third face 215;

[0063] When the fifth end enters the insertion slot 5231, the first surface 212 is attached to the side wall of the insertion slot 5231 corresponding to one side, when the fifth end enters the fourth position in the insertion slot 5231, the advancing end 214 abuts against the limiting block 540 at the first position, when the fifth end continues to move to the third position, the advancing end 214 pushes the limiting block 540 to move from the first position to the second position, and the third surface 215 maintains and limits the limiting block 540 at the second position, until the fifth end moves to the third position, the limiting of the limiting block 540 by the third surface 215 is released, the limiting block 540 moves from the second position to the first position, realizing the limiting of the wire buckle 200 by the limiting block 540; preferably, the second surface 213 and the third surface 215 are coplanar, that is, the part of the wire buckle 200 entering the wire slot has the same width except at the limiting slot 211, only the limiting slot 211 needs to be made on one side of the second surface 213 and the third surface 215, which is convenient for manufacturing the wire buckle 200.

[0064] Beneficially, after the power transmission line 2000 is tripped, the wire buckle 200 itself can drive the limiting block 540 to move from the first position to the second position during installation, and after installation, the limiting block 540 can automatically reset to the first position to limit the wire buckle 200, so that the wire buckle 200 can be quickly and conveniently reinstalled.

[0065] In some embodiments, when the energy storage spring 340 recovers and drives the second connecting unit to move in the second direction B, the limiting block 540 moves from the second position to the first position, and after the power transmission line 2000 is tripped, the limiting block 540 can be reset from the second position to the first position during the reset of the energy storage assembly 300, to facilitate subsequent installation.

[0066] The third end 303 is located between the first end 301 and the second end 302, the second end 302 is located between the third end 303 and the fourth end 304, the first direction A is a direction from the third end 303 to the fourth end 304, and the center line of the energy storage spring 340 is parallel to the first direction A.

[0067] Referring to Figure 5 , 8 The first connecting unit includes at least one first light rod 320, and in actual use, in order to balance the force of the device and simplify the structure, the number of the first light rod 320 is two, one second through hole 123 is formed at each longitudinal end of the first plate body 121, the second through hole 123 is used for fixing the first light rod 320, the second through hole 123 corresponds to the first light rod 320 one by one, one end of the first light rod 320 is the first end 301, the other end of the first light rod 320 is the second end 302, during installation, the second end 302 penetrates through the corresponding second through hole 123 and fixes the first light rod 320 and the first plate body 121 by a bolt connection or the like;

[0068] The second connecting unit comprises at least one second light rod 350, the second light rod 350 is parallel to the first light rod 320, one end of the second light rod 350 is the third end 303, the other end of the second light rod 350 is the fourth end 304, the first direction A and the second direction B are parallel to the axis direction of the second light rod 350 respectively; the energy storage spring 340 is arranged between the third end 303 and the second end 302 where the first light rod 320 and the second light rod 350 overlap each other, see Figure 7 、 8 The third end 303 is fixedly connected with the second fixed plate 310, the second end 302 is fixedly connected with the third fixed plate 330, one end of the energy storage spring 340 is fixedly connected with the second fixed plate 310, the other end of the energy storage spring 340 is fixedly connected with the third fixed plate 330; in actual use, in order to balance the force of the device and at the same time simplify the structure, the number of the energy storage spring 340 is at least one, the energy storage spring 340 corresponds to the first light rod 320 one by one, in actual installation, the first light rod 320 is arranged along the center line of the energy storage spring 340, in order to make the first light rod 320 always arranged along the center line of the energy storage spring 340, that is, to make the energy storage process of the energy storage spring 340 not skewed, the compression or recovery process of the energy storage spring 340 needs to be carried out along the axis direction of the second light rod 350 or the first light rod 320, in use, the second fixed plate 310 for fixing one end of the energy storage spring 340 is slidably connected with the first light rod 320 along the axis direction of the first light rod 320, the third fixed plate 330 for fixing the other end of the energy storage spring 340 is slidably connected with the second light rod 350 along the axis direction of the second light rod 350, when the second connecting unit moves along the third direction C, the third end 303 drives the second fixed plate 310 to move close to the third fixed plate 330 fixed with the second end 302, and the energy storage spring 340 is compressed; thus, considering the force balance of the device and at the same time simplifying the structure, one second light rod 350 is arranged on each side of each energy storage spring 340.

[0069] Beneficially, by arranging the first light rod 320, the second light rod 350, the second fixed plate 310, the third fixed plate 330 and the energy storage spring 340, the energy storage assembly 300 is simple in structure and easy to manufacture, and is balanced in overall force in use.

[0070] The signal transmitter 3200 is installed on the second fixed plate 310, in use, the signal transmitter 3200 is used to measure the distance between the second fixed plate 310 and the first fixed plate 120, when the distance between the second fixed plate 310 and the first fixed plate 120 changes suddenly, it is confirmed that the transmitted signal is an icing overload signal.

[0071] See Figure 5 、 6, 8, further, the first end 301 and the third end 303 between the buffer block 360, absorbing the energy of the third end 303 to the first end 301 impact generated by the energy storage spring 340 recovery, improve the service life of the deicing equipment 1000.

[0072] Preferably, the buffer block 360 and the first polished rod 320 one-to-one, buffer block 360 sleeve corresponding to the first polished rod 320, and between the first fixed plate 120 and the second fixed plate 310, one end of the buffer block 360 is fixed on the first fixed plate 120, the second fixed plate 310 impact the other end of the buffer block 360 during the recovery of the energy storage spring 340, or when the energy storage spring 340 is restored to the reset, the second fixed plate 310 and the other end of the buffer block 360 are in contact.

[0073] Beneficially, in practical applications, the buffer block 360 can buffer the impact between the first fixed plate 120 and the second fixed plate 310 caused by the recovery of the energy storage spring 340, thereby improving the service life of the deicing equipment 1000.

[0074] In some embodiments, the wire buckle release assembly 500 further comprises a mounting box 520, and the limiting block 540 is rotatably connected to the mounting box 520 along the first axis; when the limiting block 540 moves from the first position to the second position, the limiting block 540 rotates along the first axis in the third direction C; when the limiting block 540 moves from the second position to the first position, the limiting block 540 rotates along the first axis in the fourth direction D, and the limiting block 540 moves back and forth between the first position and the second position by rotating along the first axis, realizing the limiting or unlimiting of the wire buckle 200, which is simple to operate and has good limiting effect.

[0075] In some embodiments, the limiting block 540 comprises a sixth end and a seventh end, the first axis is located at the sixth end, and when the limiting block 540 rotates along the first axis in the third direction C, the seventh end swings around the first axis, and the seventh end is used for limiting the wire buckle 200.

[0076] The limiting block 540 further comprises an eighth end, and when the ice on the power transmission line 2000 at the deicing node 3400 reaches the ice threshold, the limiting block 540 is driven to move from the first position to the second position by the force applied through the eighth end.

[0077] Referring to Figures 13-16The limiting block 540 comprises a first shaft hole 541 and a second shaft hole 542. The first shaft hole 541 is arranged at the sixth end, and the axis of the first shaft hole 541 is collinear with the axis of the first shaft. The second shaft hole 542 is arranged at the eighth end, and is used to apply force to the limiting block 540, so that the limiting block 540 moves between the first position and the second position. The end of the seventh end is a first arc surface 543. One side of the first arc surface 543 is the fourth surface 545, and the other side of the first arc surface 543 is a second arc surface 544. The third direction C is a direction from the fourth surface 545 to the second arc surface 544. The fourth direction D is a direction from the second arc surface 544 to the fourth surface 545.

[0078] When the fifth end enters the insertion slot 5231, the first surface 212 is attached to the side wall corresponding to the insertion slot 5231. When the fifth end enters the fourth position in the insertion slot 5231, the advancing end 214 is in contact with the fourth surface 545. When the fifth end continues to move to the third position, the advancing end 214 pushes the fourth surface 545, so that the limiting block 540 rotates along the third direction C and moves from the first position to the second position. When the fourth surface 545 is attached to the third surface 215, the limiting block 540 is located at the second position. Under the action of the third surface 215 and the fourth surface 545, the limiting block 540 remains at the second position until the fifth end moves to the first position. The limiting block 540 rotates along the fourth direction D, so that the seventh end cooperates with the limiting slot 211 to limit the wire buckle 200. The fourth surface 545 is a straight surface. When the limiting block 540 is at the first position, the straight surface is more conducive to limiting between the wire buckle 200 and the limiting block 540.

[0079] The mounting box 520 comprises a box body 521 and a cover plate 522. The box body 521 is provided with a mounting slot 523. The cover plate 522 is detachably connected with the box body 521, so as to facilitate installation of the limiting block 540. Preferably, the cover plate 522 is detachably connected with the box body 521 through at least two U-shaped buckles 524. The mounting slot 523 comprises an insertion slot 5231 and a rotating slot 5232 which are in communication with each other. The sixth end of the limiting block 540 is mounted in the rotating slot 5232 with the first shaft as the rotating shaft. The first shaft hole 541 is rotationally connected with the mounting box 520 through the fourth connecting shaft 570. The swinging of the seventh end is performed in the rotating slot 5232. The mounting slot 523 is connected with the insertion slot 5231 on one side of the box body 521, and is used for mounting the wire buckle 200. The mounting slot 523 is connected with the rotating slot 5232 on the other side. After the limiting block 540 is installed, the eighth end is located outside the mounting slot 523, so as to facilitate application of force to the eighth end. In addition, placing the eighth end outside the mounting slot 523 can also limit the limiting block 540 when the limiting block 540 moves from the second position to the first position, thereby avoiding the need to increase an additional limiting mechanism and simplifying the structure. Figure 12The fourth fixed plate 590 comprises a second plate body 591, which is rectangular, and a sixth through hole 593 is formed at each corner of the rectangular second plate body 591, the sixth through hole 593 corresponds to the second light pole 350 one by one, and the corresponding end of the second light pole 350 is fixedly connected with the second plate body 591 through the sixth through hole 593; a fifth through hole 592 is formed in the middle of the second plate body 591, and the wire buckle 200 penetrates through the fifth through hole 592; a second clamping groove 594 is formed at each end of the fifth through hole 592 on the second plate body 591, two fixed parts 525 are arranged on the mounting box 520, the fixed part 525 corresponds to the second clamping groove 594 one by one, and the mounting box 520 is fixedly connected with the second plate body 591 through the seventh through hole 595 after the fixed part 525 cooperates with the second clamping groove 594.

[0080] In some embodiments, the wire buckle release assembly 500 further comprises a fifth connecting rod 510 and a tension spring 530, the fifth connecting rod 510 comprises a ninth end and a tenth end, the ninth end is hingedly connected with the eighth end, one end of the tension spring 530 is connected with the mounting box 520, and the other end of the tension spring 530 is connected between the ninth end and the tenth end; when the tenth end moves with the energy storage assembly 300, the fifth connecting rod 510 rotates along the second axis, the second axis is the hinge axis between the ninth end and the eighth end, and the limiting block 540 remains in the first position; when the ice on the power transmission wire 2000 at the deicing node 3400 reaches the ice threshold, the ninth end drives the eighth end to make the limiting block 540 rotate along the first axis, that is, the tenth end drives the limiting block 540 to move from the first position to the second position through the force of the eighth end, that is, the tenth end is driven to move by the energy storage assembly 300, so as to drive the eighth end to move, and the eighth end further drives the limiting block 540 to move from the first position to the second position.

[0081] Referring to Figure 7 , 11, the ninth end of the fifth connecting rod 510 is provided with a fifth connecting shaft 580, the fifth connecting shaft 580 is rotationally matched with the eighth end through the second shaft hole 542, and the tenth end of the fifth connecting rod 510 is directly or indirectly connected with the energy storage assembly 300; further, in order to enable the eighth end to stably force the limiting block 540, the number of the fifth connecting rods 510 is two, one fifth connecting rod 510 is arranged on each of the opposite sides of the mounting box 520, and the limiting block 540 is rotationally connected between the two fifth connecting rods 510 at the eighth end through the fifth connecting shaft 580; the tension spring 530 is arranged between the middle of the fifth connecting rod 510 and the mounting box 520, and when force is applied at the tenth end, the tension spring 530 is elongated to be elastically deformed, and part of the applied force can be stored, further, the first force direction is opposite to the second force direction, the first force direction is a force of the tension spring 530 on the fifth connecting rod 510 along a direction perpendicular to the axial direction of the fifth connecting rod 510, and the second force direction is a force of the energy storage assembly 300 directly or indirectly acting on the fifth connecting rod 510 along a direction perpendicular to the axial direction of the fifth connecting rod 510, see Figure 11 、 17 , the energy storage assembly 300 directly or indirectly acts on the tenth end to make the tenth end be lifted upward, the tension spring 530 always has a downward pulling force on the fifth connecting rod 510, so that the fifth connecting rod 510 does not loosen, and further, the force application process is stable, and when the force application at the tenth end is cancelled, in the process of recovery of the tension spring 530, the limiting block 540 automatically returns from the second position to the first position, the structure is simple, and self-resetting can be realized. Further, the fifth connecting rod 510 is further provided with a roller 560, when the tenth end is lifted upward, the roller 560 rolls along the surface of the mounting box, the part of the surface of the mounting box 520 in contact with the roller 560 is two arc surfaces with different curvatures and smooth transitions, see Figure 17 , the part of the surface of the mounting box 520 in contact with the roller 560, the lower half of the arc surface has a larger diameter, and the upper half of the arc surface has a smaller diameter, when the roller 560 rolls along the lower half of the arc surface with a larger diameter, the fifth connecting rod 510 rotates along the second shaft, at this time, the power transmission line 2000 at the deicing node 3400 is in the icing process, and the limiting block 540 remains in the first position; when the roller 560 moves to the junction of the two arc surfaces, the curvature changes suddenly, the ninth end drives the eighth end to make the limiting block 540 rotate along the first shaft, that is, at this time, the icing on the power transmission line 2000 at the deicing node 3400 reaches the icing threshold.

[0082] In some embodiments, the deicing device 1000 further comprises a linkage assembly 400, the linkage assembly 400 comprising a first connecting rod 410, a second connecting rod 420, a third connecting rod 430 and a fourth connecting rod 440;

[0083] See Figure 4 、 5, 7, 10, one end of the first connecting rod 410 is fixedly connected with the connecting assembly 100, one end of the third connecting rod 430 is fixedly connected with the third end 303, one end of the second connecting rod 420 is hingedly connected with the other end of the first connecting rod 410, the other end of the second connecting rod 420 is hingedly connected with one end of the fourth connecting rod 440, the other end of the third connecting rod 430 is slidingly fitted with the second connecting rod 420 along the longitudinal direction of the second connecting rod 420, the sliding hole 421 is formed in the second connecting rod 420, the longitudinal direction of the sliding hole 421 is consistent with the longitudinal direction of the second connecting rod 420, the other end of the fourth connecting rod 440 is connected with the tenth end, the first connecting shaft 550 is rotatably connected with the fifth connecting rod 510, the second connecting hole 551 is formed in the first connecting shaft 550 along the radial direction, the other end of the fourth connecting rod 440 penetrates through the second connecting hole 551, and preferably, the second connecting hole 551 is located between the two fifth connecting rods 510.

[0084] Referring to Figure 9 , the first fixed plate 120 is provided with the first clamping groove 124 on one lateral side, the fourth through hole 126 is formed on one side of the first clamping groove 124, one end of the first connecting rod 410 is in a U shape and is clamped in the first clamping groove 124, and the opening end of the U shape is fixed through the bolt at the fourth through hole 126, so that the fixing between the one end of the first connecting rod 410 and the first fixed plate 120 is realized, and the fixing mode of the one end of the third connecting rod 430 and the third end 303 is similar. Figure 8 , the third end 303 is provided with the second fixed plate 310, and the fixing mode of the third connecting rod 430 and the second fixed plate 310 is the same.

[0085] Preferably, in order to reasonably utilize the space and ensure the operation stability of the deicing equipment 1000, the linkage assembly 400 and the wire buckle releasing assembly 500 are located between the two energy storage springs 340, in order to further avoid the interference between the linkage assembly 400 or the wire buckle releasing assembly 500 and the energy storage assembly 300, the number of the third fixed plates 330 is two, and the two third fixed plates 330 are respectively located on the two sides of the linkage assembly 400, and each energy storage spring 340 corresponds to one third fixed plate 330.

[0086] In some embodiments, the linkage assembly 400 further comprises a locking ring 450 for positioning the fourth connecting rod 440 at a position connected to the tenth end, and the initial position of the fifth connecting rod 510 in the initial installation state is determined by the position of the locking ring 450 on the fourth connecting rod 440, thereby adjusting the icing threshold. Preferably, the position of the locking ring 450 on the fourth connecting rod 440 determines the initial position of the fifth connecting rod 510 in the initial installation state, and the elastic force parameter of the energy storage spring 340 determines the difficulty of the mutual movement between the first connecting unit and the second connecting unit, so that the adjustment of the icing threshold is realized by the position of the locking ring 450 on the fourth connecting rod 440 and the elastic force parameter of the energy storage spring 340.

[0087] Further, the end of the fourth connecting rod 440 away from the second connecting rod 420 is provided with an anti-slip stop piece 460 to prevent the locking ring 450 from falling off during adjustment.

[0088] Finally, it should be noted that the above content is only used to illustrate the technical solutions of the present application, and is not a limitation on the protection scope of the present application. Simple modifications or equivalent replacements of the technical solutions of the present application made by those skilled in the art do not deviate from the essence and scope of the technical solutions of the present application.

Claims

1. A power transmission line icing overload protection and monitoring device, characterized in that: It includes a power transmission line, at least two fixed nodes, at least one de-icing node, at least one signal transmitter, and a signal receiver; the at least two fixed nodes and the at least one de-icing node are used to install the power transmission line, and the signal receiver is used to receive the signal from the at least one signal transmitter. Each of the at least one de-icing node corresponds to one of the at least one signal transmitter; The de-icing node includes a de-icing device; the de-icing device includes a connecting component, an energy storage component, a wire clip release component, and a wire clip; the connecting component is used to connect the suspension insulator, and the wire clip is used to connect the transmission line; the signal transmitter is installed on the energy storage component. In the initial installation state, the wire clip and the wire clip release component mutually limit each other; during the process of the power transmission line being covered with ice at the de-icing node, the energy storage component stores energy; when the ice on the power transmission line at the de-icing node reaches the ice threshold, the energy storage component acts on the wire clip release component, causing the mutual limitation between the wire clip and the wire clip release component to be released, and the energy storage component recovers and triggers the signal transmitter to send a signal; The energy storage assembly includes a first connecting unit, a second connecting unit, and an energy storage spring. The first connecting unit includes a first end and a second end, and the second connecting unit includes a third end and a fourth end. The signal transmitter is installed at the third end. The first end is fixedly connected to the connecting assembly, and the fourth end is fixedly connected to the wire buckle release assembly. The energy storage spring is disposed between the second end and the third end. The wire buckle release assembly includes a insertion slot and a limiting block. When the wire buckle is installed in the insertion slot and the limiting block is in the first position, the wire buckle and the wire buckle release assembly mutually limit each other. During the process of the power transmission line icing at the de-icing node, the second connecting unit moves along a first direction, and the energy storage spring undergoes elastic deformation. When the icing on the power transmission line at the de-icing node reaches the icing threshold, under the action of the energy storage assembly, the limiting block moves from the first position to the second position. When the limiting block moves to the second position, the mutual limiting between the wire buckle and the wire buckle release assembly is released. In use, when the limiting block moves to the second position, the wire buckle is pulled out of the insertion slot, and the energy storage spring recovers and drives the second connecting unit to move in the second direction and triggers the signal transmitter to send a signal. The second direction is opposite to the first direction.

2. The transmission line icing overload protection monitoring device according to claim 1, characterized in that: When the wire buckle includes a fifth end, and when the wire buckle is installed in the insertion slot, the fifth end is located in the third position; When the wire clip is installed, the fifth end enters the insertion slot and moves to the third position; when the fifth end moves to the fourth position, the fifth end abuts against the limiting block located at the first position; when the fifth end moves from the fourth position to the third position, the fifth end pushes the limiting block from the first position to the second position; when the fifth end moves to the third position, the limiting block moves from the second position to the first position.

3. The transmission line icing overload protection monitoring device according to claim 1, characterized in that: When the energy storage spring recovers and drives the second connecting unit to move along the second direction, the limiting block moves from the second position to the first position.

4. The transmission line icing overload protection monitoring device according to claim 3, characterized in that: The buckle release assembly also includes a mounting box, and the limiting block is rotatably engaged with the mounting box along a first axis; when the limiting block moves from the first position to the second position, the limiting block rotates along the first axis in a third direction; when the limiting block moves from the second position to the first position, the limiting block rotates along the first axis in a fourth direction.

5. The transmission line icing overload protection monitoring device according to claim 4, characterized in that: The limiting block includes a sixth end and a seventh end. The first shaft is located at the sixth end. When the limiting block rotates along the first shaft in a third direction, the seventh end swings about the first shaft as the axis. The seventh end is used to limit the buckle. The limiting block also includes an eighth end, which, when the energy storage spring undergoes elastic deformation, drives the limiting block to move from the first position to the second position via the eighth end.

6. The transmission line icing overload protection monitoring device according to claim 5, characterized in that: The wire release assembly also includes a fifth connecting rod and a tension spring. The fifth connecting rod includes a ninth end and a tenth end. The ninth end is hinged to the eighth end. One end of the tension spring is connected to the mounting box, and the other end of the tension spring is connected between the ninth end and the tenth end. When the ice on the power transmission line at the de-icing node reaches the ice threshold, the tenth end drives the limiting block to move from the first position to the second position via the eighth end.

7. The transmission line icing overload protection monitoring device according to claim 6, characterized in that: The de-icing device also includes a linkage component, which includes a first connecting rod, a second connecting rod, a third connecting rod, and a fourth connecting rod. One end of the first connecting rod is fixedly connected to the connecting assembly, one end of the third connecting rod is fixedly connected to the third end, one end of the second connecting rod is hingedly connected to the other end of the first connecting rod, the other end of the second connecting rod is hingedly connected to one end of the fourth connecting rod, the other end of the third connecting rod is slidably engaged with the second connecting rod along the longitudinal direction of the second connecting rod, and the other end of the fourth connecting rod is connected to the tenth end.

8. The transmission line icing overload protection monitoring device according to claim 7, characterized in that: The linkage component also includes a locking ring, which is used to position the fourth connecting rod at the connection point with the tenth end.

9. The transmission line icing overload protection monitoring device according to any one of claims 1-8, characterized in that: When the number of de-icing nodes corresponding to the nearest fixed node is at least two, the icing thresholds at the at least two de-icing nodes corresponding to the nearest fixed node are distributed in a stepped manner, and the nearest fixed node is the fixed node closest to the de-icing node; the icing threshold at the de-icing node close to the nearest fixed node is greater than the icing threshold at the de-icing node far from the nearest fixed node.

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