Digital monitoring device for high voltage cable terminal surge arrester

Abstract

The utility model discloses high voltage cable terminal lightning arrester digitized monitoring device, including the monitoring box, the lateral wiring sleeve and bottom wiring sleeve are equipped on the one side outer wall and bottom outer wall of monitoring box respectively, the lateral wiring sleeve with bottom wiring sleeve all is equipped with limit component on, the one side outer wall of monitoring box is equipped with fixed component, limit component includes the outer sleeve and inner sleeve of the lateral wiring sleeve with bottom wiring sleeve, the inner sleeve is connected on the inner wall of outer sleeve, the inner sleeve is close to the one side connection of monitoring box with equidistance distribution's movable support and connecting block, the utility model discloses high voltage cable terminal lightning arrester digitized monitoring device is different from traditional wiring mode, can carry out clamping and limit to the wiring of penetration, effectively shares the connecting pressure between wiring and monitoring device, avoids the problem of poor contact caused by wiring shaking to occur.

Description

Technical Field

[0001] This utility model relates to the field of surge arrester monitoring technology, and in particular to a digital monitoring device for high-voltage cable terminal surge arresters. Background Technology

[0002] A surge arrester is an electrical device used to protect electrical equipment from high transient overvoltage hazards during lightning strikes and to limit the follow current time and often the follow current amplitude. During its use, it needs to be monitored by an online monitoring device. It is an instrument used in conjunction with zinc oxide surge arresters in high-voltage AC power systems, and the instrument is connected in series in the grounding circuit of the surge arrester.

[0003] However, traditional digital monitoring devices for high-voltage cable terminal arresters have an overly simple structure when connecting to the grounding circuit, which makes them susceptible to problems such as loose wiring under environmental influences, affecting the stability of the monitoring process. For example, when the circuit wiring is connected to the detection device, the outdoor wind force can easily affect the wiring, and the swaying of the suspended wiring can easily cause the connection between it and the monitoring device to loosen, resulting in problems such as poor contact. Utility Model Content

[0004] This utility model discloses a digital monitoring device for high-voltage cable terminal surge arresters, aiming to solve the technical problem that traditional digital monitoring devices for high-voltage cable terminal surge arresters have an overly simple structural design during the wiring process with the grounding circuit, which is prone to problems such as loose wiring under the influence of environmental factors, thus affecting the stability of the monitoring process.

[0005] To achieve the above objectives, the present invention adopts the following technical solution: A digital monitoring device for high-voltage cable terminal surge arresters includes a monitoring box. A side wiring sleeve and a bottom wiring sleeve are respectively provided on one side outer wall and the bottom outer wall of the monitoring box. Both the side wiring sleeve and the bottom wiring sleeve are equipped with limiting components. A fixing component is provided on one side outer wall of the monitoring box. The limiting component includes an outer sleeve and an inner sleeve that form the side wiring sleeve and the bottom wiring sleeve. The inner sleeve is connected to the inner wall of the outer sleeve. The side of the inner sleeve closest to the monitoring box is connected to equidistant movable support rods and connecting blocks, with each movable support rod corresponding to one of the connecting blocks. A spring is provided between each movable support rod and the connecting block. One end of each of the movable support rods is hinged to a mounting plate. A support pad is provided on one side of each mounting plate. Equidistantly distributed protrusions are provided on the inner wall of the inner sleeve, and these protrusions cooperate with the movable support rods.

[0006] The inner sleeve and outer sleeve in this solution are used in combination. During the connection process, the movable support rod is squeezed and supported by the protrusion in the inner sleeve, thereby squeezing the space inward as a whole. This causes the support pad on one side of the mounting plate to tightly press against the wiring that passes through it, clamping and limiting the wiring from a position outside the wiring connection, and preventing the wiring from shaking and causing poor contact with the monitoring device.

[0007] As a further embodiment of this utility model: the fixing component includes a mounting pad disposed on one side of the monitoring box, and each of the two mounting pads is hinged with a clip on one side.

[0008] By adopting the above technical solution, the set clips can facilitate the installation of the monitoring box. The mounting pad in this solution is installed with the box body by screw connection. In different installation scenarios, appropriate clips can be replaced and used, and disassembly and replacement are convenient.

[0009] In summary, this application includes at least the following beneficial technical effects: 1. Excellent connection effect: Unlike traditional wire threading sleeves, the inner sleeve and outer sleeve of this solution are combined to lock and limit the through wires, effectively sharing the connection pressure between the wires and the monitoring device and avoiding poor contact caused by wire shaking.

[0010] 2. Flexible installation method: The fixing components used can be easily replaced with mounting pads and matching clips, which can effectively adapt to the installation of the monitoring box in different scenarios, ensuring high adaptability and flexibility in use.

[0011] Other features and advantages of this utility model will be disclosed in detail in the following specific embodiments and accompanying drawings. Attached Figure Description

[0012] Figure 1 This is a schematic diagram of the overall installation structure of the digital monitoring device for high-voltage cable terminal surge arresters proposed in this utility model.

[0013] Figure 2 This is a diagram showing the clip installation structure of the digital monitoring device for high-voltage cable terminal surge arresters proposed in this utility model.

[0014] Figure 3 For the present utility model in Figure 2 A magnified structural diagram of point A in the middle.

[0015] Figure 4 This is a schematic diagram of the protrusion mounting structure of the digital monitoring device for high-voltage cable terminal surge arresters proposed in this utility model.

[0016] Figure 5 This is a schematic diagram of the inner structure of the digital monitoring device for high-voltage cable terminal surge arresters proposed in this utility model.

[0017] In the attached diagram: 1. Monitoring box; 2. Bottom wiring sleeve; 3. Side wiring sleeve; 4. Clip; 5. Outer sleeve; 6. Inner sleeve; 7. Inner ring screw groove; 8. Outer ring screw groove; 9. Protrusion; 10. Anti-slip groove; 11. Connecting block; 12. Spring; 13. Movable support rod; 14. Mounting plate; 15. Support pad. Detailed Implementation

[0018] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0019] Reference Figure 1 , Figure 2 , Figure 3 , Figure 4 and Figure 5 A digital monitoring device for high-voltage cable terminal surge arresters includes a monitoring box 1. A side wiring sleeve 3 and a bottom wiring sleeve 2 are respectively provided on one side outer wall and the bottom outer wall of the monitoring box 1. Limiting components are provided on both the side wiring sleeve 3 and the bottom wiring sleeve 2. A fixing component is provided on one side outer wall of the monitoring box 1. The limiting assembly includes an outer sleeve 5 and an inner sleeve 6 that make up the side wiring sleeve 3 and the bottom wiring sleeve 2. The inner sleeve 6 is connected to the inner wall of the outer sleeve 5. The side of the inner sleeve 6 closest to the monitoring box 1 is connected to movable support rods 13 and connecting blocks 11 that are evenly distributed. The positions of the movable support rods 13 and the connecting blocks 11 correspond one-to-one. A spring 12 is provided between the movable support rods 13 and the connecting blocks 11. One end of each of the movable support rods 13 is hinged to a mounting plate 14. A support pad 15 is provided on one side of the mounting plate 14. The inner wall of the inner sleeve 6 is provided with protrusions 9 that are evenly distributed. The protrusions 9 are used in conjunction with the movable support rods 13.

[0020] Specifically, the inner sleeve 6 and outer sleeve 5 in this solution are used in combination. During the connection process, the movable support rod 13 is squeezed and supported by the protrusion 9 in the inner sleeve 6, thereby squeezing the space inward as a whole. This causes the support pad 15 on one side of the mounting plate 14 to tightly press against the wiring that passes through it, clamping and limiting the wiring from a position outside the wiring connection, so as to avoid the wiring shaking and causing poor contact with the monitoring device.

[0021] The outer sleeve 5 has an outer ring screw groove 8 on its outer wall, and the inner sleeve 6 has an inner ring screw groove 7 on its inner wall. The outer ring screw groove 8 and the inner ring screw groove 7 are compatible with each other.

[0022] It should be noted that the outer sleeve 5 and the inner sleeve 6 are installed by screw connection, which can control the support degree of the movable support rod 13 and the protrusion 9, thereby changing the support force to adapt to the wiring of different wire diameters.

[0023] Among them, the support pad 15 is made of soft rubber. The soft rubber has better support and wrapping properties for the wiring, and can also flexibly protect the wiring.

[0024] Reference Figure 4 and Figure 5 In a preferred embodiment, an arc-shaped protrusion is provided on one side of the outer wall of the movable support rod 13, and the surface of the protrusion 9 is a hemispherical structure. The arc-shaped protrusion of the movable support rod 13 supports the hemispherical protrusion 9 more smoothly and will not get stuck.

[0025] It should be noted that the inner sleeve 6 has anti-slip grooves 10 evenly distributed on one side edge to facilitate the tightening and loosening of the inner sleeve 6 and the outer sleeve 5.

[0026] Reference Figure 1 and Figure 2 In a preferred embodiment, the fixing assembly includes mounting pads disposed on one side of the monitoring box 1, and clips 4 are hinged to one side of both mounting pads.

[0027] Specifically, the installation of the monitoring box 1 can be facilitated by the set clip 4. The mounting pad in this solution is installed with the box body by screw connection. In different installation scenarios, the appropriate clip 4 can be used, and the disassembly and replacement are convenient.

[0028] It is particularly important to note that a door is located on one side of the monitoring box 1, and a latch is installed between the door and the monitoring box 1. Under normal conditions, the door of the monitoring box 1 remains locked to prevent accidental contact by non-professionals.

[0029] Working principle: When in use, select the appropriate clip 4 for fixed installation according to the installation scenario, and then start wiring. One side of the monitoring device is connected to the surge arrester, and the other side is connected to the ground wire. When the wiring passes through the side wiring sleeve 3 and the bottom wiring sleeve 2 respectively, the operator screws the inner sleeve 6 and adjusts the screwing depth between the inner sleeve 6 and the outer sleeve 5. This adjusts the tightness of the movable support rod 13 on one side of the inner sleeve 6, which drives the mounting plate 14 and the support pad 15 to limit and fix the wiring passing through it.

[0030] The above description is merely a preferred embodiment of this utility model, but the protection scope of this utility model is not limited thereto. The substitutions may be replacements of some structures, devices, or method steps, or they may be complete technical solutions. Equivalent substitutions or modifications made based on the technical solution and inventive concept of this utility model should all be covered within the protection scope of this utility model.

Claims

1. A digital monitoring device for high-voltage cable terminal surge arresters, comprising a monitoring box (1), characterized in that, The monitoring box (1) has a side wiring sleeve (3) and a bottom wiring sleeve (2) on one side outer wall and the bottom outer wall respectively. Both the side wiring sleeve (3) and the bottom wiring sleeve (2) are equipped with limiting components. The monitoring box (1) has a fixing component on one side outer wall. The limiting assembly includes an outer sleeve (5) and an inner sleeve (6) that make up the side wiring sleeve (3) and the bottom wiring sleeve (2). The inner sleeve (6) is connected to the inner wall of the outer sleeve (5). The inner sleeve (6) is connected to movable support rods (13) and connecting blocks (11) that are evenly distributed on the side of the inner sleeve (6) near the monitoring box (1). The positions of the movable support rods (13) and the connecting blocks (11) correspond one-to-one. A spring (12) is provided between the movable support rods (13) and the connecting blocks (11). One end of each of the movable support rods (13) is hinged to a mounting plate (14). A support pad (15) is provided on one side of the mounting plate (14). The inner wall of the inner sleeve (6) is provided with protrusions (9) that are evenly distributed. The protrusions (9) are used in conjunction with the movable support rods (13).

2. The digital monitoring device for high-voltage cable terminal surge arresters according to claim 1, characterized in that, The outer sleeve (5) has an outer ring screw groove (8) on its outer wall, and the inner sleeve (6) has an inner ring screw groove (7) on its inner wall. The outer ring screw groove (8) and the inner ring screw groove (7) are compatible.

3. The digital monitoring device for high-voltage cable terminal surge arresters according to claim 2, characterized in that, The support pad (15) is made of soft rubber.

4. The digital monitoring device for high-voltage cable terminal surge arresters according to claim 3, characterized in that, The movable support rod (13) has an arc-shaped protrusion on one side of its outer wall, and the surface of the protrusion (9) is a hemispherical structure.

5. The digital monitoring device for high-voltage cable terminal surge arresters according to claim 4, characterized in that, The inner sleeve (6) has anti-slip grooves (10) distributed at equal intervals on one side edge.

6. The digital monitoring device for high-voltage cable terminal surge arresters according to claim 1, characterized in that, The fixing assembly includes a mounting pad disposed on one side of the monitoring box (1), and a clip (4) is hinged to one side of each of the two mounting pads.

7. The digital monitoring device for high-voltage cable terminal surge arresters according to claim 6, characterized in that, The monitoring box (1) has a door on one side, and a latch is provided between the door and the monitoring box (1).

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