Self-powered leakage current visual monitoring device for line tower

Abstract

The utility model discloses a self-powered leakage current visual monitoring device for a line tower, which is provided with an electric leakage monitor used for monitoring current on a cement pole and a grounding wire, the electric leakage monitor is provided with two fixing plates, and the two fixing plates are provided with connecting pieces; the connecting piece comprises two studs matched with the ends of the fixing plate, the two studs are connected through a connecting band, and the connecting band comprises a wide band part and a narrow band part in the length direction. A through hole is formed in the wide band part of the connecting band, ratchets are arranged on the inner wall, perpendicular to the length direction, of the through hole, and the length of the inner wall provided with the ratchets is larger than the width of the narrow band part of the connecting band; a plurality of ratchet grooves are evenly formed in the narrow band part of the connecting band, and the ratchet grooves are matched with the ratchets so that the connecting band can be prevented from being disengaged from the through hole. The problem that the follow-up current monitoring effect is affected due to the fact that an existing monitoring device is connected with a concrete pole and cannot be conveniently and stably installed by workers is solved.

Description

Technical Field

[0001] This utility model relates to the field of power transmission technology, specifically to a self-powered leakage current visualization monitoring device for power transmission towers. Background Technology

[0002] With the development of the national economy, the demand for electricity is increasing, which places higher and higher demands on the safe and reliable operation of the power system. The operational reliability of the overhead distribution line structure system plays a crucial role in the safe operation of the power system. Cement pole lines frequently experience leakage current in the grounding down conductors due to insulator aging, dirt accumulation, lightning strikes, and uneven three-phase currents. This leakage current can reach several amperes to tens of amperes or more, posing a significant safety hazard to people in the surrounding area and potentially causing accidents such as line fires, forest fires, power equipment failures, and single-phase grounding faults, seriously threatening the safety and stability of the distribution network. Therefore, monitoring devices with fault indicators and distribution automation technology have emerged in the market. These devices can monitor common short-circuit faults and low-resistance faults.

[0003] Currently, most monitoring devices on the market rely on stainless steel strips to be fixed to concrete poles. When using these strips, both ends must be inserted into the device to complete the fixing process. This significantly increases the difficulty when installing the device at higher positions on the pole. Due to limitations in operating space and posture, workers often need to exert more effort and overcome numerous inconveniences to successfully position the device using the strips. Improper operation of the strips can lead to insecure installation and potential safety hazards. Utility Model Content

[0004] The purpose of this invention is to solve the problem that the existing monitoring device is not easy for workers to install stably on cement poles, which leads to safety hazards. It provides a line pole tower self-powered leakage current visualization monitoring device.

[0005] To address the shortcomings of the aforementioned technical problems, the present invention adopts the following technical solution: a line tower self-powered leakage current visualization monitoring device, which has a leakage current monitor for monitoring the current on cement poles and grounding wires, and the leakage current monitor is provided with two fixing plates, each of which is provided with a connector.

[0006] The connector includes two studs that mate with the end of the fixed plate. The two studs are connected by a connecting band, which includes a wide band and a narrow band along the length direction.

[0007] The wide section of the connecting strip has a through hole, and the inner wall of the through hole, which is perpendicular to its length direction, has ratchet teeth. The length of the inner wall with ratchet teeth is greater than the width of the narrow section of the connecting strip.

[0008] The narrow section of the connecting strip is provided with multiple ratchet grooves evenly distributed. The ratchet grooves and ratchet teeth cooperate to prevent the connecting strip from coming out of the through hole.

[0009] As a further optimization of the self-powered leakage current visualization monitoring device for line towers of this utility model: the connecting strip is made of aluminum.

[0010] As a further optimization of the self-powered leakage current visualization monitoring device for line towers of this utility model: the connecting strip is made of stainless steel.

[0011] As a further optimization of the self-powered leakage current visualization monitoring device for line towers of this utility model: the cross-section of the ratchet and the ratchet teeth are both triangular.

[0012] As a further optimization of the self-powered leakage current visualization monitoring device for line towers of this utility model, the leakage current monitoring instrument is equipped with a communication module.

[0013] As a further optimization of the self-powered leakage current visualization monitoring device for line towers of this utility model: the top of the leakage current monitor is equipped with a solar panel to power it.

[0014] As a further optimization of the self-powered leakage current visualization monitoring device for line towers of this utility model: the leakage current monitor is equipped with a display screen.

[0015] As a further optimization of the self-powered leakage current visualization monitoring device for line towers of this utility model: the display screen is a 0.1W ultra-low power electronic ink screen.

[0016] Compared with the prior art, the present invention has the following beneficial effects:

[0017] This invention features a through-hole in the connecting strip, allowing it to form a closed loop and stably wrap around the cement pole and grounding wire. Simultaneously, ratchet teeth on the inner wall of the through-hole engage with ratchet grooves on the connecting strip to maintain its stable wrapping around the cement pole and grounding wire. The stud, fixedly connected to the connecting strip, can then be positioned, facilitating the placement of the leakage current monitor with its mounting plate. Workers can then tighten the nut onto the stud without needing to support the leakage current monitor or the positioning connecting strip, thus reducing the inconvenience of tightening the nut and improving the efficiency and stability of the leakage current monitor installation. This, in turn, eliminates the safety hazards caused by unstable installation of the leakage current monitor.

[0018] Furthermore, this utility model provides a through hole in the connecting strip, allowing one end of the connecting strip to pass through the through hole and form a closed loop. When the connecting strip forms a closed loop, it accommodates the protrusion of the grounding wire onto the surface of the cement pole and the inclined surface of the cement pole, and increases the contact area between the inner wall of the connecting strip and the cement pole and grounding wire. This improves the stability of the connecting strip in positioning the leakage current monitor through the studs, nuts, and fixing plates, thus reducing the occurrence of reduced monitoring current effect due to the leakage current monitor's own positional deviation caused by environmental factors such as vibration. Attached Figure Description

[0019] Figure 1 This is a front view structural diagram of the present utility model;

[0020] Figure 2 This is a schematic diagram of the working structure of the connector of this utility model;

[0021] Figure 3 This is an enlarged cross-sectional view of the connector in its working state, according to this utility model.

[0022] Figure 4 This is a structural schematic diagram of the connector of this utility model in its unfolded state;

[0023] Figure 5 This is a structural schematic diagram of the present invention in its working state;

[0024] The markings in the diagram are: 1. Grounding wire; 2. Cement pole; 3. Leakage detector; 4. Fixing plate; 5. Connector; 501. Stud; 502. Connecting strap; 503. Elastic ring; 504. Ratchet; 505. Through hole; 506. Ratchet tooth; 6. Solar panel; 7. Communication module; 8. Display screen. Detailed Implementation

[0025] To better understand this utility model, the following embodiments further illustrate the content of this utility model, but the content of this utility model is not limited to the following embodiments.

[0026] like Figure 1 and Figure 5 As shown, a self-powered leakage current visualization monitoring device for power transmission towers includes a leakage current monitor 3 for monitoring the current on a cement pole 2 and the connecting wire. The leakage current monitor 3 has two fixing plates 4, which cooperate with a connector 5 to position the leakage current monitor 3 onto the cement pole 2, which has a grounding wire 1 on its surface. Figure 2 and Figure 4 As shown, specifically, the connector 5 includes two studs 501 that pass through the ends of the fixing plate 4 and engage with nuts. Each stud 501 has a connecting strip 502 at its end facing away from the fixing plate 4. The connecting strip 502 has a through hole 505 for its end to pass through, allowing the connecting strip 502 to form a closed loop. The inner wall of the through hole 505 has ratchet teeth 506, and the connecting strip 502 has ratchet grooves 504 that engage with the ratchet teeth 506. During the process of the connecting strip 502 passing through the through hole 505, the ratchet teeth 506 will slide within the multiple ratchet grooves 504, after which the operator can then... The connecting strap 502 forms a closed loop to bind the cement pole 2 and the grounding wire 1. That is, with a large contact area between the connecting strap 502 and the cement pole 2 and the grounding wire 1, the connecting strap 502 is bound to the cement pole 2 with the grounding wire 1 on its surface. At the same time, the ratchet 506 will engage in the corresponding ratchet groove 504 to keep the connecting strap 502 binding the cement pole 2 and the grounding wire 1. Next, with the connecting strap 502 initially positioned, the worker can use the cooperation of the nut and stud 501 to stably connect the fixing plate 4 to the cement pole 2, that is, to position the leakage current monitor 3 on the cement pole 2 for use. With the nut, fixing plate 4, and stud 501 tightening the connecting strip 502, the connecting strip 502 can increase the pressure of the connecting strip 502 on the cement pole 2 and grounding wire 1, based on the larger contact area with the cement pole 2 and grounding wire 1. This increases the friction between the connecting strip 502 and the cement pole 2 and grounding wire 1, thereby working with the fixing plate 4 to stably connect the leakage current monitor 3 to the corresponding positions of the cement pole 2 and grounding wire 1 for stable and low-error current monitoring, and to a certain extent eliminates the safety hazards caused by unstable installation of the leakage current monitor 3.

[0027] like Figure 3As shown, the cross-sections of both the ratchet 506 and the ratchet groove 504 are triangular. When the narrow section of the connecting band 502 is inserted into the through hole 505, the inclined side of the ratchet groove 504 allows the inclined side of the ratchet 506 to slide out from the apex of the ratchet groove 504. When the narrow section of the connecting band 502 is pulled out of the through hole 505, the bottom edge of the ratchet 506 will correspond to the bottom edge of the ratchet groove 504, thereby restricting the narrow section of the connecting band 502 in the through hole 505, that is, maintaining the state in which the connecting band 502 binds the cement rod 2 and the grounding wire 1.

[0028] The inner wall of the connecting band 502 is provided with an elastic ring 503. The elastic ring 503, while the stud 501, nut, and fixing plate 4 tighten the connecting band 502, increases the friction between the connecting band 502 and the cement pole 2 and grounding wire 1, thus further improving the stability of the connecting band 502 in positioning the monitoring device to the cement pole 2 and grounding wire 1. Specifically, the fixing plate 4 includes connecting holes at both ends corresponding to the stud 501 and slotted holes on both sides of the center corresponding to the leakage current monitor 3. The slotted holes can accommodate different connecting seats of the leakage current monitor 3 within a certain range, allowing the two fixing plates 4 to be stably connected to the leakage current monitor 3 by bolts. The connecting band 502 is made of aluminum, nylon, or stainless steel, allowing it to be bent to form a closed loop while maintaining the shape stability of the ratchet 506 and ratchet groove 504. This allows the ratchet 506 and ratchet groove 504 to engage and lock the size of the closed loop, facilitating the positioning of the leakage current monitor 3 by the operator.

[0029] The leakage current monitor 3 is a commercially available product. It is equipped with a solar panel 6, which extends the monitor's operating time and reduces the need for frequent battery replacements. The monitor also features a communication module 7, which sends a warning to a mobile phone via 4G IoT when a weak current appears on the cement pole 2 or grounding wire 1, alerting staff. Furthermore, the monitor has a 0.1W ultra-low power e-ink display screen 8, facilitating optical identification by drones up to 8 meters away. It displays the leakage current value and status code in real time, allowing staff to easily view data while operating the drone. The monitor, along with connectors 5 and a mounting plate 4, achieves a modular structure, enabling easy disassembly and assembly for quick replacement and repair.

[0030] In practical use, the studs 501 at one end of the two connecting strips 502 are passed through the corresponding two through holes 505, so that the two connecting strips 502 form a closed loop around the cement pole 2 and the grounding wire 1. Then, the workers can tighten the two connecting strips 502 through the corresponding four studs 501. At the same time, the corresponding ratchet grooves 504 and ratchet teeth 506 are used to stably bind the two connecting strips 502 forming the closed loop to the transmission line and the grounding wire 1 at a certain distance. Then, the four studs 501, which are arranged in pairs, can be positioned in the corresponding positions. Next, the connecting strips 502 can be installed. The leakage current monitor 3 is placed on two fixing plates 4, corresponding to four studs 501. That is, the two ends of the two fixing plates 4 are aligned with the four studs 501. Then, the four studs 501 can match the two fixing plates 4 to position the leakage current monitor 3 in a suitable position. Finally, the staff can easily screw nuts on the four studs 501 to make the fixing plates 4 and studs 501 stably connected, thereby stably positioning the leakage current monitor 3 in the corresponding position, so as to maintain the effect of the leakage current monitor 3 in monitoring the current during subsequent operation, and at the same time, to a certain extent, eliminate the safety hazards caused by the unstable installation of the leakage current monitor 3.

[0031] The specific embodiments of this utility model have been described above. It should be understood that this utility model is not limited to the specific embodiments described above, and those skilled in the art can make various modifications or variations within the scope of the claims, which do not affect the substantive content of this utility model.

Claims

1. A line pole self-power leakage current visual monitoring device, characterized in that: It has a leakage monitoring instrument (3) for monitoring the current on the cement pole (2) and the ground wire (1), and two fixed plates (4) are arranged on the leakage monitoring instrument (3), and a connecting piece (5) is arranged on each fixed plate (4); The connecting piece (5) comprises two threaded studs (501) matched with the end portions of the fixed plates (4), and the two threaded studs (501) are connected through a connecting band (502), and the connecting band (502) comprises a wide band portion and a narrow band portion along the length direction; The wide band portion of the connecting band (502) is provided with a through hole (505), and the inner wall of the through hole (505) perpendicular to the length direction is provided with a ratchet (506), and the length of the inner wall provided with the ratchet (506) is greater than the width of the narrow band portion of the connecting band (502); A plurality of ratchet grooves (504) are uniformly arranged on the narrow band portion of the connecting band (502), and the ratchet grooves (504) and the ratchet (506) are matched to limit the disengagement of the connecting band (502) from the through hole (505).

2. The line tower self-powered leakage current visualization monitoring device of claim 1, wherein: The material of the connecting band (502) is aluminum.

3. The line pole tower self-power derived leakage current visualized monitoring device of claim 1, wherein: The material of the connecting band (502) is stainless steel.

4. The line pole tower self-power derived leakage current visualized monitoring device of claim 1, wherein: The cross sections of the ratchet grooves (504) and the ratchet (506) are triangular.

5. The line pole tower self-power derived leakage current visualized monitoring device of claim 1, wherein: The leakage monitoring instrument (3) is provided with a communication module (7).

6. A line pole tower self-power derived leakage current visualizing monitoring device according to claim 1, characterized in that: The top of the leakage monitoring instrument (3) is provided with a solar panel (6) for supplying power.

7. The line pole tower self-power derived leakage current visualized monitoring device of claim 1, wherein: The leakage monitoring instrument (3) is provided with a display screen (8).

8. The line pole tower self-power derived leakage current visualized monitoring device of claim 7, wherein: The display screen (8) is a 0.1W ultra-low power consumption electronic ink screen.

Images