Protection device suitable for overhead line of power distribution network

Abstract

The invention relates to the technical field of power distribution network maintenance, and provides a protection device suitable for a power distribution network overhead line. The overhead line is connected between the adjacent supporting bodies. The protection device comprises a positioning mechanism and an insulating rope assembly. Wherein the positioning mechanism corresponds to the supporting body, and the positioning mechanism can ascend and descend in the height direction of the supporting body. The insulating rope assemblies are connected between the positioning mechanisms corresponding to the adjacent supporting bodies, and the insulating rope assemblies and the overhead line are arranged at intervals. Moreover, the insulating rope assembly sends out an induction signal when being mistakenly touched by external force, and the positioning mechanism receives the induction signal and sends out an early warning signal. Through the arrangement, a protection space can be built through the positioning mechanism and the insulating rope assembly. Therefore, overhead line breakage, short circuit, line fault tripping and even risks endangering on-site personal safety caused by construction mistaken touch are effectively reduced, and daily maintenance of the overhead line of the power distribution network is facilitated.

Description

Technical Field

[0001] This application relates to the field of power distribution network maintenance technology, and in particular to a protection device suitable for overhead lines in power distribution networks. Background Technology

[0002] During routine maintenance of power distribution networks, there are frequent needs for construction work around overhead power lines. When users are using large equipment for construction, even if the power supply department has provided instructions regarding the live equipment and lines on-site, it is difficult to guarantee that a safe distance is always maintained between the large equipment and the live equipment and lines. Furthermore, human error can easily lead to accidental contact during construction, affecting the safety of the overhead power lines. Once accidental contact occurs, it may not only cause the overhead lines to break or short-circuit, leading to line faults and tripping, but may also endanger the personal safety of on-site personnel. Summary of the Invention

[0003] This application provides a protection device for overhead lines in power distribution networks to solve the problems of line breakage and short circuits caused by accidental contact during routine maintenance of power distribution networks, which can lead to line fault tripping and endanger on-site personnel safety.

[0004] To achieve the above objectives, this application adopts the following technical solution:

[0005] This application provides a protection device for overhead lines in a power distribution network. The overhead lines are connected between adjacent supports. The protection device includes: a positioning mechanism corresponding to the support and capable of moving up and down along the height of the support; and an insulating rope assembly connected between the positioning mechanisms corresponding to adjacent supports, with the insulating rope assembly spaced apart from the overhead lines. The insulating rope assembly emits a sensing signal when accidentally touched by an external force, and the positioning mechanism receives the sensing signal and issues a warning signal.

[0006] As an optional implementation, the insulating rope assembly includes: an insulating rope connected between positioning mechanisms corresponding to adjacent supports; and a vibration sensor disposed on the insulating rope and electrically connected to the positioning mechanism.

[0007] As an optional implementation, the positioning mechanism includes: a positioning frame that moves up and down along the height direction of the support; a rope frame connected to the positioning frame, with at least one insulating rope connected between the rope frames corresponding to adjacent supports; wherein, of the two rope frames respectively connected to both ends of the insulating rope, at least one rope frame is an adjustable rope frame, and the included angle between the adjustable rope frame and the positioning frame is adjustable.

[0008] As an optional implementation, at least one insulating rope is connected between the positioning frames corresponding to adjacent supports.

[0009] As an optional implementation, the positioning mechanism also includes a controller and an alarm, which are mounted on the positioning frame or rope frame, and the vibration sensor and the alarm are both electrically connected to the controller.

[0010] As an optional implementation, the positioning mechanism includes: an identifier connected to the positioning frame and extending along the height direction of the support, the identifier being provided with scale markings.

[0011] As an optional implementation, the support body is a support rod, and the positioning frame of the positioning mechanism includes: a positioning seat, which is sleeved on the support rod; and a drive motor, which is connected to the positioning seat and drives the positioning seat to move along the support rod.

[0012] As an optional implementation, the positioning seat includes: a seat body, which is arranged around the outer periphery of the support rod; a traveling wheel, which is connected to the seat body and rolls along the outer wall surface of the support rod; and an elastic element, which is connected between the seat body and the traveling wheel and is in a compressed state.

[0013] As an optional implementation, the positioning seat further includes a locking member, one end of which is connected to the seat body, and the other end of which extends toward the support rod and can abut against or separate from the support rod.

[0014] As an optional implementation, the circumference of the positioning seat is adjustable.

[0015] As an optional implementation, the support body is a support tower, and the positioning frame of the positioning mechanism includes a telescopic rod, the bottom of which is installed on the support surface, and the top of which extends and retracts along the height direction of the support tower.

[0016] As an optional implementation, the positioning frame also includes a connecting beam, which connects to the telescopic rods installed on both sides of the support tower.

[0017] As an optional implementation, it also includes an infrared transmitter and an infrared receiver, both of which are disposed on an insulating rope, or one of the infrared transmitter and the infrared receiver is disposed on an insulating rope and the other is disposed on a support.

[0018] The protection device for overhead lines in power distribution networks provided in this application includes a positioning mechanism and an insulating rope assembly. The positioning mechanism corresponds to a support and can move up and down along the height of the support. The insulating rope assembly is connected between the corresponding positioning mechanisms on adjacent supports and is spaced apart from the overhead line. Furthermore, the insulating rope assembly emits a sensing signal when accidentally touched by external force, and the positioning mechanism receives the sensing signal and issues a warning signal.

[0019] Therefore, before using large equipment (such as excavators and cranes) for construction operations, the positioning mechanisms corresponding to adjacent supports can be pre-connected via insulated rope assemblies. Then, the positioning mechanisms corresponding to the adjacent supports are raised to the required height, ensuring the insulated rope assemblies are spaced apart from the overhead lines. In this way, if accidental contact occurs due to improper operation during construction, the large equipment will first come into contact with the protective space created by the insulated rope assemblies. At this point, the insulated rope assemblies, triggered by external force, will emit a sensing signal. The positioning mechanisms receive this signal and issue a warning signal, alerting construction personnel to the risk of accidental contact and halting construction. This effectively reduces the risk of overhead line breakage, short circuits, line fault tripping, and even endangering on-site personnel safety due to accidental contact during construction, and is beneficial for the daily maintenance of overhead power distribution lines. Attached Figure Description

[0020] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0021] Figure 1 A front view of a protection device provided in an embodiment of this application;

[0022] Figure 2 for Figure 1 Top view of the protective device in the middle;

[0023] Figure 3 A front view of another protection device provided in the embodiments of this application;

[0024] Figure 4 for Figure 3 Top view of the protective device in the middle;

[0025] Figure 5 A schematic diagram illustrating the use of the protective device provided in this application embodiment between adjacent support rods;

[0026] Figure 6 A schematic diagram of the protective device provided in an embodiment of this application on a support rod;

[0027] Figure 7 A schematic diagram of the structure of the protective device provided in this application embodiment on another support rod.

[0028] Explanation of reference numerals in the attached figures:

[0029] 100 - Protective device;

[0030] 110 - Positioning mechanism; 111 - Rope frame; 1111 - Fixing hole; 112 - Positioning frame; 113 - Fixing rod;

[0031] 1120-Drive motor; 1121-Positioning seat; 11211-Opening; 11212-Adjusting component; 1122-Seat body; 1123-Walking wheel; 1124-Elastic component; 11241-Connecting rod; 1125-Locking component; 1126-Connecting beam; 1127-Telescopic rod; 1128-Supporting platform;

[0032] 120 - Insulating rope assembly; 121 - Insulating rope;

[0033] 130 - Identification parts; 131 - Scale markings;

[0034] 140 - Controller;

[0035] 150-Alarm;

[0036] 200 - Support body; 210 - Support rod; 220 - Support tower;

[0037] 300-overhead line;

[0038] 400 - Large equipment. Detailed Implementation

[0039] To make the objectives, technical solutions, and advantages of the embodiments of this application clearer, the technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application. Unless otherwise specified, the following embodiments and features can be combined with each other.

[0040] During routine maintenance of power distribution networks, users often hire cranes and excavators to work near overhead power lines. Although users are required to inform the local power supply department beforehand, and the department will assist in the site survey and inform them of any live equipment and lines, it is difficult to guarantee a safe distance from live equipment and lines throughout the actual work process. The situation often depends on the experience and judgment of the on-site supervisor and the skill level of the machine operators. Even with safety briefings from the local power supply department informing them of the risks, it is still difficult to rule out human error during construction that could lead to overhead line breaks, short circuits, or power outages.

[0041] Current construction techniques cannot effectively prevent faults such as overhead line breaks, short circuits, and tripping at construction sites. This not only introduces instability into the power supply and seriously affects its reliability, but also poses a threat to the personal safety of on-site workers, making on-site operations highly dangerous.

[0042] In view of this, this application provides a protection device for overhead lines in a power distribution network. The overhead line is connected between adjacent supports. The protection device includes a positioning mechanism and an insulating rope assembly. The positioning mechanism corresponds to a support and can move up and down along the height of the support. The insulating rope assembly is connected between the corresponding positioning mechanisms of adjacent supports, and is spaced apart from the overhead line. Furthermore, the insulating rope assembly emits a sensing signal when accidentally touched by external force, and the positioning mechanism receives the sensing signal and issues a warning signal.

[0043] Therefore, before using large equipment (such as excavators and cranes) for construction operations, the positioning mechanisms corresponding to adjacent supports can be pre-connected via insulated rope assemblies. Then, the positioning mechanisms corresponding to the adjacent supports are raised to the same height, ensuring the insulated rope assemblies are spaced apart from the overhead lines. In this way, if large equipment is accidentally touched during construction due to improper operation, the large equipment will first come into contact with the protective space created by the insulated rope assemblies. At this time, the insulated rope assemblies, which are accidentally touched by external force, will emit a sensing signal. The positioning mechanism receives this signal and issues a warning signal, alerting construction personnel to the risk of accidental contact and halting construction. This effectively reduces the risk of overhead line breakage, short circuits, line fault tripping, and even endangering personal safety on site due to accidental contact during construction, and is beneficial for the daily maintenance of overhead power distribution lines.

[0044] The contents of this application will now be described in detail with reference to the accompanying drawings, so that those skilled in the art can have a clearer and more detailed understanding of the contents of this application.

[0045] Figure 1 This is a front view of a protection device provided in an embodiment of this application. Figure 2 for Figure 1 A top view of the protective device. Figure 3 A front view of another protection device provided in an embodiment of this application. Figure 4 for Figure 3 A top view of the protective device. Figure 5 This is a schematic diagram illustrating the use of the protective device provided in this application embodiment between adjacent support rods.

[0046] Reference Figures 1 to 5As shown, this application embodiment provides a protection device 100 suitable for overhead lines in a power distribution network, where an overhead line 300 (a live line) is connected between adjacent supports 200. The protection device 100 includes a positioning mechanism 110 and an insulating rope assembly 120. The positioning mechanism 110 corresponds one-to-one with each support 200. Furthermore, the positioning mechanism 110 can move up and down along the height of the support 200. The insulating rope assembly 120 is connected between the corresponding positioning mechanisms 110 of adjacent supports 200, and the insulating rope assembly 120 is spaced apart from the overhead line 300, thereby creating a safety warning zone for the overhead line 300 between adjacent supports 200.

[0047] When the insulating rope assembly 120 is accidentally touched by an external force, it can emit a sensing signal. The positioning mechanism 110 receives the sensing signal and issues a warning signal. The warning signal can indicate to on-site personnel that there is a certain risk in the operation and that construction needs to be stopped.

[0048] With this setup, before using large equipment 400 (such as excavators or cranes) for construction operations, the positioning mechanisms 110 corresponding to adjacent support bodies 200 can be pre-connected via the insulating rope assembly 120, depending on the site conditions. Subsequently, the positioning mechanisms 110 corresponding to the adjacent support bodies 200 are raised to the required height, so that the insulating rope assembly 120 and the overhead line 300 are spaced apart.

[0049] In this way, when the large equipment 400 is accidentally touched due to improper operation during construction, the large equipment 400 will first come into contact with the safety warning zone constructed by the insulating rope assembly 120. At this time, the insulating rope assembly 120, which is accidentally touched by external force, will emit a sensing signal. The positioning mechanism 110 receives the sensing signal and issues a warning signal, alerting the construction personnel to the risk of accidental contact and stopping construction. This can effectively reduce the risk of overhead line 300 being broken, short-circuited, tripped due to line faults caused by accidental contact during construction, and even endangering the personal safety of personnel on site, which is beneficial to the daily maintenance of the overhead line 300 of the distribution network.

[0050] It is understandable that the spacing between the insulating rope assembly 120 and the overhead line 300 can take many forms, and can be adapted to the specific conditions of the construction site. For example, when large equipment 400 mainly operates below the overhead line 300, the insulating rope assembly 120 can be installed below the overhead line 300 (see [reference]). Figure 5 (As shown), to avoid accidental contact with the overhead line 300 when the crane or excavator below is operating.

[0051] Figure 6 A schematic diagram of the structure of the protective device provided in this application embodiment on a support rod. Figure 7 A schematic diagram of the structure of the protective device provided in this application embodiment on another support rod.

[0052] Reference Figure 6 and Figure 7 As shown, three sets of overhead lines 300 are installed on the support rod 210, and all overhead lines 300 are perpendicular to the line. Figure 6 , Figure 7 The paper surface extends outwards. The insulating rope assembly 120 is connected to the rope holder 111 on the positioning mechanism 110. Similarly, the insulating rope assembly 120 is also perpendicular to the paper surface. Figure 6 , Figure 7 The paper extends outwards.

[0053] When the operating range of the large equipment 400 exceeds the height of the overhead line 300, multiple sets of insulating rope assemblies 120 can be installed, and these multiple sets of insulating rope assemblies 120 can be spaced out and installed at different locations around the overhead line 300 (see [reference]). Figure 6 , Figure 7 (As shown). This can prevent accidental contact from multiple directions during construction. No restrictions are placed on the relative positional relationship between the insulating rope assembly 120 and the overhead line 300, as long as it can create a safety warning zone for the overhead line 300.

[0054] Continue to refer to Figure 5 As shown, the insulating rope assembly 120 may include an insulating rope 121 and a vibration sensor (not shown). The insulating rope 121 is connected between the positioning mechanisms 110 corresponding to adjacent supports 200. The vibration sensor is disposed on the insulating rope 121 and can be electrically connected to the positioning mechanism 110. When the construction equipment accidentally touches the insulating rope 121, the vibration sensor disposed on the insulating rope 121 can send a sensing signal to the positioning mechanism 110 to issue an alarm.

[0055] The vibration sensor can be a piezoelectric sensor, a capacitive sensor, or an inductive sensor to detect the vibration of the insulating rope 121. The vibration sensor can also be a mechanical vibration sensor; for example, it can utilize a spring connected to a mass. When vibration causes the mass to compress or stretch the spring, the spring's deformation is transmitted to a corresponding mechanical structure, triggering a switch or generating other detectable signals. Alternatively, the swing of the pendulum can be converted into an electrical signal through a mechanical transmission device to detect vibration. No specific form is limited here.

[0056] It is understandable that the insulating rope 121 may vibrate due to factors other than construction-related environmental influences, such as bird strikes or wind. The vibration sensor can be set to issue a signal when the vibration exceeds a threshold, or the controller 140 can be configured to issue a warning signal when the received signal exceeds a preset threshold, in order to avoid false alarms.

[0057] Continue to refer to Figures 1-4As shown, the positioning mechanism 110 may include a positioning frame 112 and a rope frame 111. The positioning frame 112 can move up and down along the height direction of the support 200. The rope frame 111 is connected to the positioning frame 112 and can move up and down along the height direction of the support 200 together with the positioning frame 112. At least one insulating rope 121 is connected between the rope frames 111 corresponding to adjacent supports 200. With this configuration, the safety monitoring of the overhead power line 300 of the power distribution network can be achieved through the cooperation of the insulating rope 121 and the vibration sensor on the insulating rope 121.

[0058] It is understandable that as the number of insulating ropes 121 connecting the rope frames 111 corresponding to adjacent supports 200 increases, the safety warning zone formed by the protection device 100 covers a larger area, and the protection performance for the overhead power line 300 of the distribution network is better. Furthermore, the number, length, and extension direction of the rope frames 111 can be adjusted according to site requirements, and no limitations are imposed here.

[0059] The specific structure of the rope frame 111 and various possible implementation methods are described in detail below.

[0060] At least two rope frames 111 are connected to the positioning frame 112, and the at least two rope frames 111 form an angle of less than 90° with the positioning frame 112. In addition, at least one fixing hole 1111 is provided on the rope frame 111, through which the insulating rope 121 can pass to connect the positioning mechanism 110 between adjacent supports.

[0061] For example, there can be two rope frames 111, such as... Figure 1 , Figure 3 As shown, rope frames 111 can be symmetrically arranged on both sides of the positioning frame 112, and the top of the rope frame 111 is lower than the top of the marker 130. Rope frames 111 installed on adjacent supports 200 can be connected by insulating ropes 121 through one or more fixing holes 1111 on the rope frame 111 to create a safety warning zone below the overhead line 300. When construction equipment is working below the overhead line 300, this safety warning zone can provide timely warnings.

[0062] It is understandable that the rope frame 111 can be directly set on the positioning frame 112, or it can be fixed on the positioning frame 112 by the fixing rod 113 on the positioning frame 112. No limitation is made here.

[0063] When two rope frames 111 are provided, in some embodiments, the top of the rope frame 111 may also be higher than the top of the marker 130, so that the insulating rope 121 led out from the rope frame 111 can be higher than part or all of the height of the overhead line 300, such as... Figure 6 , Figure 7As shown. At this time, the tilt angle of the rope frame 111 avoids other components on the support rod 210, so it will not interfere with the support rod 210 and affect the safety performance of the overhead line 300. In addition, the multiple sets of insulating ropes 121 on the rope frame 111 are arranged at intervals in different positions around the overhead line 300, which can enhance the protection effect.

[0064] In some embodiments, at least one of the two rope frames 111 connected to both ends of the insulating rope 121 is an adjustable rope frame, and the angle between the adjustable rope frame and the positioning frame 112 is adjustable.

[0065] In this way, the angle between the adjustable rope frame and the positioning frame 112 can be adjusted according to the width of the area where the overhead line 300 of the power distribution network is located, so as to minimize the risk of the overhead line 300 being accidentally touched by construction equipment.

[0066] It should be noted that the adjustable rope frame refers to the angle between the adjustable rope frame and the positioning frame 112 that is adjusted according to the width of the overhead line 300 before the positioning mechanism 110 is raised to the vicinity of the overhead line 300. After adjustment, the adjustable rope frame and the positioning frame 112 are fixedly connected.

[0067] It is understandable that when only one of the two rope frames 111 connected to both ends of the insulating rope 121 has an adjustable angle with the positioning frame 112, the coverage of the safety warning zone can be expanded as much as possible through the adjustable rope frame, and the other side can be stably connected through different fixing holes 1111 on the rope frame 111.

[0068] When the included angle between the two rope frames 111 connected to both ends of the insulating rope 121 and the positioning frame 112 is adjustable, the angle of the adjustable rope frames on both sides can be pre-adjusted and the insulating rope 121 can be stably connected.

[0069] In one implementation, at least one insulating rope 121 can be connected between the positioning frames 112 corresponding to adjacent supports 200. With this configuration, if the rope frame 111 becomes loose, or if the rope frame 111 becomes loose, the insulating rope assembly 120 between the lower positioning frames 112 can be kept unaffected, thus improving the reliability of the device.

[0070] It is understandable that when there are multiple insulating ropes 121, they can be arranged side by side at the same height of the positioning frame 112, or they can be arranged at intervals at different heights of the positioning frame 112, and no limitation is made here.

[0071] Continue to refer to Figures 1-4 As shown, the positioning mechanism 110 may further include a controller 140 and an alarm 150. The controller 140 and the alarm 150 may be mounted on the positioning frame 112 or the rope frame 111 to achieve a stable connection. The vibration sensor and the alarm 150 are both electrically connected to the controller 140 to achieve stable signal transmission.

[0072] The controller 140 can receive the sensing signal emitted by the vibration sensor, and after receiving the sensing signal, it controls the alarm 150 to issue an audible and visual alarm, alerting the construction personnel and stopping the construction.

[0073] In some embodiments, the controller 140 may also send information to designated on-site construction personnel or management personnel to prevent the alarm 150 from malfunctioning, thereby increasing multiple safeguards and further reducing the risk of accidental activation of the overhead line 300.

[0074] In addition, the controller 140 can also be used to control the lifting and lowering position of the positioning mechanism 110 along the height direction of the support 200. When the insulating rope assembly 120 reaches the desired position, the controller 140 can control the positioning mechanism 110 to stop lifting and lowering and keep the positioning mechanism 110 stationary at that position.

[0075] In one embodiment, the positioning mechanism 110 may include an identifier 130, which is connected to the positioning frame 112 and extends along the height direction of the support 200. The identifier 130 may be provided with a scale mark 131.

[0076] The marker 130 can be used to determine the distance between the protection device 100 and the live line, so as to maintain a safe distance between the protection device 100 and the live line and avoid interference between the protection device 100 and the hardware on the power line, which would affect normal use. It should be noted that the safe distance between the protection device 100 and the power line should be at least 1 meter.

[0077] In some embodiments, the marking member 130 may be provided with multiple scale markings 131, which may be arranged sequentially along the height direction of the support 200, and each scale marking 131 may be set to a different color for the operator to observe.

[0078] For example, if the marker 130 is set to 2 meters, then four scale markers 131 can be set for 2 meters, 1.5 meters, 1.2 meters, and 1 meter. The marker 130 in the 2-meter to 1.5-meter range can be set to white, the marker 130 in the 1.5-meter to 1.2-meter range can be set to yellow, the marker 130 in the 1.2-meter to 1-meter range can be set to orange, and the range of 1 meter and below can be set to red, so as to achieve clear distinction between different relative positions.

[0079] In one embodiment, the protective device 100 may further include an infrared transmitter and an infrared receiver. Both the infrared transmitter and receiver may be mounted on the insulating rope 121, or one of the infrared transmitter and receiver may be mounted on the insulating rope 121 and the other on the support body 200.

[0080] This setup allows for a secondary assessment of false trigger signals through further infrared detection. Understandably, to avoid the influence of other natural environmental factors besides construction work, such as bird strikes or wind, the detection range of the infrared transmitter and receiver can be appropriately expanded to prevent false alarms.

[0081] In practical applications, the support structure 200 typically includes two forms: a support rod 210 and a support tower 220. The support rod 210 can be a slender rod-like structure, such as a concrete pole. The support tower 220, on the other hand, can be a frame-like tower structure composed of multiple support beams connected together, such as a steel tower. It should be noted that... Figure 3 and Figure 4 The designation of the support tower 220 is only used to indicate the relative relationship between the positioning mechanism 110 and the support tower 220, and is not intended to limit the specific structural shape of the support tower 220. The following description uses the support body 200 as an example, with the support rod 210 as the reference, to further explain the positioning frame 112 of the corresponding positioning mechanism 110.

[0082] like Figures 1-2 As shown, when the support body 200 is the support rod 210, the positioning frame 112 of the positioning mechanism 110 may include a positioning seat 1121 and a drive motor 1120. The positioning seat 1121 is sleeved on the support rod 210 and is movable relative to the support rod 210. The drive motor 1120 is connected to the positioning seat 1121 and can drive the positioning seat 1121 to move along the support rod 210. Specifically, the drive motor 1120 is electrically connected to the controller 140 and can rotate (forward, reverse) or stop rotating under the control of the controller 140.

[0083] The positioning seat 1121 may include a seat body 1122. The seat body 1122 is arranged around the outer periphery of the support rod 210 and is movable along the support rod 210. In some embodiments, the circumference of the positioning seat 1121 is adjustable to accommodate the installation of the support rod 210 with different diameters. Correspondingly, the circumference of the seat body 1122 is adjustable.

[0084] In some embodiments, the base 1122 may be provided with an opening 11211 and an adjusting member 11212. The outer walls of the base 1122 on both sides of the opening 11211 are connected to connecting plates. The connecting plates may be provided with multiple sets of positioning holes. By adjusting the fit of different hole positions, they can be adapted to different diameters of support rods 210. Subsequently, they can be fixed by the adjusting member 11212 (such as a pin or bolt) to prevent them from shifting.

[0085] Understandably, the seat 1122 can also be made of an elastic material (such as rubber or spring steel) and the size of the circumference of the seat 1122 can be adjusted by using a tensioning mechanism (such as a knob or a lever).

[0086] In other embodiments, the base 1122 may include multiple slidable arc-shaped modules, which can be connected by guide rails or slots to adjust the relative positions of the modules, thereby changing the overall circumference of the base 1122. Furthermore, after adjustment, locking bolts or hydraulic devices can be used to fix the positions of the modules to ensure the structural stability of the adjusted base 1122.

[0087] The positioning seat 1121 may be equipped with a traveling wheel 1123, which is connected to the seat body 1122 and can roll along the outer wall surface of the support rod 210. To ensure a sufficient coefficient of friction between the traveling wheel 1123 and the support rod 210 and prevent slippage, as one embodiment, the traveling wheel 1123 may be made of rubber and may be provided with a V-groove to enhance the friction between it and the outer wall surface of the support rod 210.

[0088] Furthermore, multiple sets of the traveling wheels 1123 can be provided, with the multiple sets of traveling wheels 1123 evenly spaced along the circumference of the seat 1122, and can rotate under the drive of the drive motor 1120. This can avoid slippage on one side and ensure the smooth movement of the seat 1122.

[0089] Understandably, the rotation of the walking wheel 1123 can generate a frictional force along the direction of the support rod 210. When the frictional force is greater than the weight of the positioning mechanism 110 and the air resistance, it can push the seat 1122 to climb upward along the support rod 210.

[0090] The positioning seat 1121 may also include an elastic element 1124. The elastic element 1124 is connected between the seat body 1122 and the traveling wheel 1123, and is in a compressed state. Specifically, the elastic element 1124 can be connected to the seat body 1122 via a connecting rod 11241. The elastic element 1124 can provide pressure to the traveling wheel 1123 towards the support rod 210, ensuring that the traveling wheel 1123 remains in contact with the support rod 210, enhancing the friction between the wheel and the concrete pole surface, thus facilitating the stable climbing of the positioning seat 1121. Especially when the support rod 210 has a variable diameter, the diameter of the support rod 210 may become smaller. During climbing, the compressed elastic element 1124 can be gradually stretched by the elastic force, causing the traveling wheel 1123 to press against the support rod 210, preventing the traveling wheel 1123 from detaching from the support rod 210.

[0091] It should be noted that the elastic element 1124 can be a spring structure or a leaf spring, as long as it can provide pressure to the traveling wheel 1123 toward the support rod 210 side. No specific structural limitation is made here.

[0092] In one embodiment, the positioning base 1121 may also include a locking member 1125. One end of the locking member 1125 is connected to the base body 1122, and the other end of the locking member 1125 extends and retracts toward the support rod 210 and can abut or separate from the support rod 210.

[0093] With this configuration, when the positioning seat 1121 has not reached the desired position, the locking member 1125 is in a retracted state and separated from the support rod 210, thus not affecting the climbing of the positioning seat 1121 along the support rod 210. When the positioning seat 1121 reaches the desired position, the extension of the locking member 1125 can abut against the support rod 210, thereby increasing the friction between the positioning seat 1121 and the support rod 210 and enhancing the stability of the connection.

[0094] At least one locking element 1125 may be provided. When multiple locking elements 1125 are provided, they can be evenly distributed along the circumference of the seat 1122. This increases the friction between the positioning seat 1121 and the support rod 210 and improves the stability of the device.

[0095] It is understandable that the locking element 1125 can be perpendicular to the height direction of the support rod 210, or it can be obliquely supported on the support rod 210, as long as it can abut against the support rod 210 to increase friction and prevent the positioning seat 1121 from sliding down. No limitation is made here.

[0096] Specifically, the locking element 1125 can be an electric telescopic rod, which can be electrically connected to the controller 140. When the positioning seat 1121 rises to the target height position, the controller 140 can send an extension signal to the electric telescopic rod to control the electric telescopic rod to support itself on the support rod 210.

[0097] The working principle of the protective device 100 when the support member is a support rod 210 is explained below:

[0098] When the user's excavator is working between adjacent support rods 210, each adjacent support rod 210 is equipped with a corresponding positioning mechanism 110, and the insulating rope assembly 120 can be fixed to the positioning mechanisms 110 on both sides. The size of the ring of the positioning seat 1121 body 1122 can be adjusted first to compress the elastic element 1124 to the maximum, thereby applying pressure to the traveling wheel 1123 towards the support rod 210 side to ensure sufficient friction between the traveling wheel 1123 and the support rod 210.

[0099] Before climbing the pole, the angle and direction of the rope frame 111 can be pre-adjusted. The controller 140 sends a control signal to the drive motor 1120, which starts the drive motor 1120 and provides upward driving force for the positioning mechanism 110 on the adjacent support pole 210. During the climbing process, the distance between the marker 130 and the live line can be visually observed by on-site personnel to determine whether the positioning mechanism 110 has climbed to the predetermined safe position (i.e., maintaining a safe distance of more than 1 meter from the live line equipment).

[0100] When the predetermined safe position is reached, the operator can send a stop signal to the controller 140. The controller 140 controls the drive motor 1120 to stop rotating and locks the drive motor 1120, no longer providing upward driving force. At the same time, the controller 140 sends a control signal to the locking member 1125, which extends its rod and presses against the support rod 210, fixing the positioning mechanism 110 at a certain height.

[0101] At this point, the positioning mechanism 110 and the insulating rope assembly 120 together form a warning and protection space for the energized overhead line 300. If an excavator or other equipment accidentally touches the insulating rope 121 during construction, the vibration sensing module on the insulating rope 121 will detect this and send a sensing signal to the controller 140. The controller 140 processes and judges the signal, then sends a signal to the alarm 150. The alarm 150 emits a warning sound and light signal to alert construction personnel and stop construction. In addition, the controller 140 can also simultaneously send information, similar to SMS, to designated on-site construction personnel or management personnel, providing effective early warning.

[0102] The following description uses the support tower 220 as an example to further explain the positioning frame 112 of the corresponding positioning mechanism 110.

[0103] like Figures 3-4 As shown, when the support 200 is a support tower 220, the positioning frame 112 of the positioning mechanism 110 may include a telescopic rod 1127. The bottom of the telescopic rod 1127 is mounted on the support surface, and the top of the telescopic rod 1127 can extend and retract along the height direction of the support tower 220. It is understood that the support surface can be the ground or an additional support platform 1128, thereby improving the stability of the positioning frame 112.

[0104] The positioning frame 112 may also include a connecting beam 1126, which connects to the telescopic rods 1127 provided on both sides of the support tower 220. It can also serve as a support platform for the rope frame 111, controller 140, marker 130, and alarm 150. Specifically, the connecting beam 1126 may also have multiple fixing holes 1111 arranged side-by-side, through which insulating ropes 121 can pass, thereby enabling the construction of multiple layers of insulating ropes to enhance the safety of the protection device 100. It is understood that additional mounting components with fixing holes 1111 may also be provided on the connecting beam 1126; this is not limited here.

[0105] The working principle of the protection device 100 is explained below when the support component is a support tower 220:

[0106] When the user's excavator is located between adjacent support towers 220, each adjacent support tower 220 is equipped with a positioning mechanism 110, and the insulating rope assembly 120 can be fixed to the positioning mechanism 110 on both sides.

[0107] Before raising the cable frame 111, its angle and direction can be pre-adjusted. The controller 140 can send a control signal to the telescopic rod 1127, causing the top of the telescopic rod 1127 to extend upwards. During the raising process, the distance between the marker 130 and the live line can be visually observed by on-site personnel to determine whether the positioning mechanism 110 has climbed to the predetermined safe position (i.e., maintaining a safe distance of more than 1 meter from the live line equipment). When the predetermined safe position is reached, the personnel can send a stop signal to the controller 140, which will control the telescopic rod 1127 to stop extending, and the positioning mechanism 110 will no longer rise. At this time, the positioning mechanism 110 and the insulating rope assembly 120 together form a warning and protection space for the live overhead line 300. If an excavator or other equipment accidentally touches the insulating rope 121 during construction, the vibration sensing module on the insulating rope 121 will detect it and send a sensing signal to the controller 140. After processing and judging the signal, the controller 140 will send a signal to the alarm 150, which will emit a warning sound and light signal to warn the construction personnel and stop construction. In addition, the controller 140 can also send information to designated on-site construction personnel or management personnel, such as text messages, for effective early warning.

[0108] It should be noted that the terms "one embodiment," "embodiment," "exemplary embodiment," "some embodiments," etc., mentioned in the specification indicate that the described embodiment may include a specific feature, structure, or characteristic, but not every embodiment necessarily includes that specific feature, structure, or characteristic. Furthermore, such phrases do not necessarily refer to the same embodiment. Moreover, when a specific feature, structure, or characteristic is described in connection with an embodiment, implementing such a feature, structure, or characteristic in conjunction with other embodiments, whether explicitly described or not, is within the knowledge scope of those skilled in the art.

[0109] Generally speaking, terms should be understood at least in part by their use in context. For example, at least in part by context, the term "one or more" as used in the text can be used to describe any feature, structure, or characteristic of the singular meaning, or a combination of features, structures, or characteristics of the plural meaning. Similarly, at least in part by context, terms such as "a" or "the" can also be understood to convey either singular or plural usage.

[0110] It should be readily understood that the terms “on,” “above,” and “on top of” in this application should be interpreted in the broadest possible sense, such that “on” means not only “directly on something” but also “on something” with an intermediate feature or layer therebetween, and that “above” or “on top of” means not only “on something” but also “on something” without an intermediate feature or layer therebetween (i.e., directly on something).

[0111] Furthermore, for ease of explanation, spatially relative terms such as "below," "below," "under," "above," and "above" may be used to describe the relationship of one element or feature relative to other elements or features as shown in the figures. Spatially relative terms are intended to encompass different orientations of the device in use or operation other than those shown in the figures. The device may have other orientations (rotated 90° or in other orientations), and the spatially relative descriptive terms used herein may be interpreted accordingly.

[0112] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this application, and are not intended to limit them. Although this application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features therein. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this application.

Claims

1. A protection device for overhead lines in a power distribution network, wherein the overhead lines are connected between adjacent supports, characterized in that, The protective device includes: A positioning mechanism, which corresponds to the support body, and the positioning mechanism can move up and down along the height direction of the support body; An insulating rope assembly is connected between the positioning mechanisms corresponding to adjacent supports, and the insulating rope assembly is spaced apart from the overhead line; The insulating rope assembly emits a sensing signal when accidentally touched by an external force, and the positioning mechanism receives the sensing signal and issues a warning signal.

2. The protection device according to claim 1, characterized in that, The insulating rope assembly includes: An insulating rope, the insulating rope being connected between the positioning mechanisms corresponding to adjacent supports; A vibration sensor is disposed on the insulating rope and is electrically connected to the positioning mechanism.

3. The protection device according to claim 2, characterized in that, The positioning mechanism includes: A positioning frame that moves up and down along the height direction of the support body; A rope frame, the rope frame being connected to the positioning frame, and at least one insulating rope being connected between the rope frames corresponding to adjacent supports; Among the two rope frames connected to both ends of the insulating rope, at least one rope frame is an adjustable rope frame, and the included angle between the adjustable rope frame and the positioning frame is adjustable.

4. The protection device according to claim 3, characterized in that, At least one insulating rope is connected between the positioning frames corresponding to adjacent supports.

5. The protective device according to any one of claims 1-4, characterized in that, The positioning mechanism also includes a controller and an alarm, which are mounted on the positioning frame or rope frame. The vibration sensor and the alarm are both electrically connected to the controller.

6. The protective device according to any one of claims 1-4, characterized in that, The positioning mechanism includes: The marking element is connected to the positioning frame and extends along the height direction of the support body, and the marking element is provided with scale markings.

7. The protective device according to any one of claims 1-4, characterized in that, The support body is a support rod, and the positioning frame of the positioning mechanism includes: A positioning seat, which is sleeved on the support rod; A drive motor is connected to the positioning seat, and the drive motor drives the positioning seat to move along the support rod.

8. The protection device according to claim 7, characterized in that, The positioning seat includes: The base body is arranged around the outer periphery of the support rod; The traveling wheel is connected to the base and rolls along the outer wall surface of the support rod; An elastic element is connected between the seat and the wheel, and the elastic element is in a compressed state.

9. The protection device according to claim 8, characterized in that, The positioning base also includes: A locking element, one end of which is connected to the base, and the other end of which extends toward the support rod and can abut or separate from the support rod.

10. The protection device according to claim 7, characterized in that, The circumference of the positioning seat is adjustable.

11. The protective device according to any one of claims 1-4, characterized in that, The support structure is a support tower, and the positioning frame of the positioning mechanism includes: A telescopic pole, the bottom of which is installed on a support surface, and the top of which extends and retracts along the height direction of the support tower.

12. The protection device according to claim 11, characterized in that, The positioning frame also includes: A connecting beam connects the telescopic rods installed on both sides of the support tower.

13. The protective device according to any one of claims 1-4, characterized in that, It also includes an infrared transmitter and an infrared receiver, both of which are mounted on an insulating rope, or one of the infrared transmitter and the infrared receiver is mounted on the insulating rope and the other is mounted on the support.

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