High-voltage special lightning-protection cable structure

Abstract

The utility model relates to the field of electric power fittings, in particular to a high-voltage special lightning-protection cable structure, which comprises a lightning arrester and two cables, and is characterized in that the input end and the output end of the lightning arrester are respectively provided with a conductive plate, one end of each of the two cables is connected with a conductive sleeve, an inner hole of the conductive sleeve is a sleeving hole matched with the conductive plate, and the inner hole of the conductive sleeve is communicated with the conductive plate. A locking screw is screwed on the conductive sleeve, and the inner end of the locking screw can enter the sleeving hole along with screwing of the locking screw; and the conductive sleeves on the two cables are respectively sleeved on the two conductive plates, and the inner ends of the locking screws on the two conductive sleeves are respectively tightly pressed on the conductive plates in the corresponding sleeving holes. According to the utility model, the disassembly and assembly process of the lightning arrester can be effectively simplified, so that the convenience and efficiency of disassembly and assembly of the lightning arrester can be improved; therefore, workers do not need to stay at a high place for a long time, and potential safety hazards can be reduced. The device has the advantages of simple structure, high reliability, strong applicability and the like.

Description

Technical Field

[0001] This utility model relates to the field of power accessories, and in particular to a high-voltage special lightning protection cable structure. Background Technology

[0002] Currently, to improve the safety of high-voltage transmission lines, a technical solution has emerged of connecting surge arresters in series between the high-voltage transmission line and the ground. Most existing surge arresters have a first conductive post and a second conductor post with external threads on their input and output ends, respectively, to form the connection points for the relevant conductors. Installing such a surge arrester requires four nuts, a surge arrester cable, a grounding conductor, etc. A first terminal is connected to one end of the surge arrester cable, which is fitted onto the first conductive post, and two nuts are screwed onto the first conductive post to clamp and position the first terminal. A second terminal is connected to one end of the grounding conductor, which is fitted onto the second conductive post, and two nuts are screwed onto the second conductive post to clamp and position the second terminal. The other end of the surge arrester cable is connected to the high-voltage transmission line, and the other end of the grounding conductor is grounded (some may connect other modules in series with the surge arrester cable and / or the grounding conductor).

[0003] While the above technical solutions can meet the requirements for lightning protection, the first terminal connecting the lightning protection cable is fitted onto the first conductive post and secured with two nuts, and the second terminal connecting the grounding wire is fitted onto the second conductive post and secured with two nuts. Therefore, when replacing the surge arrester, at least two nuts must be completely removed before the arrester can be fully removed. Then, the removal process for the new surge arrester must be reversed to achieve effective connection. Because the nut removal and installation process is cumbersome, and the nuts need to effectively secure the terminals, the arrester removal and installation process is very inconvenient, leading to low removal efficiency. Since surge arresters are generally located at high altitudes, workers need to remain at these heights for extended periods during installation and removal, increasing safety hazards.

[0004] Therefore, it is essential to redesign the structure of surge arresters. Utility Model Content

[0005] The purpose of this utility model is to solve the above-mentioned problems and shortcomings, and to provide a high-voltage special lightning protection cable structure. This high-voltage special lightning protection cable structure can effectively simplify the disassembly and assembly process of the lightning arrester, thereby improving the convenience and efficiency of the disassembly and assembly of the lightning arrester; this eliminates the need for workers to stay at heights for too long, which helps to reduce safety hazards; it has the advantages of simple structure, high reliability, and strong applicability.

[0006] The technical solution of this utility model is implemented as follows:

[0007] A high-voltage special lightning protection cable structure includes a surge arrester and two cables. The surge arrester has conductive plates installed at its input and output ends. One end of each cable is connected to a conductive sleeve. The inner hole of the conductive sleeve is a fitting hole that matches the conductive plate. A locking screw is screwed onto the conductive sleeve, and the inner end of the locking screw can enter the fitting hole as it is tightened. The conductive sleeves on the two cables are respectively fitted onto two conductive plates, and the inner ends of the locking screws on the two conductive sleeves are respectively pressed tightly against the conductive plates in their corresponding fitting holes.

[0008] Preferably, the lower end of the surge arrester extends downward to form an inverted frustum-shaped mounting end.

[0009] Preferably, the opening of the fitting hole is flared.

[0010] Preferably, the conductive plate has a shallow positioning groove, and the inner end of the locking screw is embedded in the shallow positioning groove.

[0011] Preferably, the depth H of the positioning shallow groove is 2.5mm to 3mm.

[0012] Preferably, the inner end of the locking screw is a cylindrical end in the shape of an optical axis, the outer corner of the cylindrical end is rounded, and the positioning shallow groove matches the outer end of the cylindrical end.

[0013] Preferably, the end of the conductive plate furthest from the surge arrester is an arc-shaped convex end.

[0014] Preferably, the thickness X of the conductive plate is 8mm to 16mm, and the wall thickness Y of the conductive sleeve is 10mm to 15mm.

[0015] The beneficial effects of this utility model are as follows: In this high-voltage special lightning protection cable structure, the two conductive sleeves can be detached from their corresponding conductive plates by loosening two locking screws, without completely unscrewing the locking screws, thus enabling rapid disassembly of the surge arrester. During installation, the surge arrester can be quickly positioned by fitting the conductive sleeves onto the conductive plates and then tightening the locking screws. Therefore, this high-voltage special lightning protection cable structure effectively simplifies the assembly and disassembly process of the surge arrester, thereby improving the convenience and efficiency of assembly and disassembly; this also reduces the need for workers to stay at heights for extended periods, thus reducing safety hazards. The use of conductive plates and the matching inner holes of the conductive sleeves ensure sufficient area for fitting the conductive sleeves onto the conductive plates, guaranteeing high reliability of the high-voltage special lightning protection cable structure, resulting in excellent lightning protection performance and extended service life. Furthermore, the overall structure of this high-voltage special lightning protection cable is relatively simple. Therefore, this high-voltage special lightning protection cable structure has strong applicability. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the structure of the medium and high voltage special lightning protection cable of this utility model.

[0017] Figure 2 This is a schematic diagram of the surge arrester in this utility model.

[0018] Figure 3 This is a schematic diagram of the locking screw in this utility model. Detailed Implementation

[0019] like Figure 1 and Figure 2 As shown, the high-voltage special lightning protection cable structure of this utility model includes a surge arrester 1 and two cables 2. To achieve the purpose of this utility model, conductive plates 11 are respectively provided on the input and output ends of the surge arrester 1. Conductive sleeves 21 are connected to one end of the two cables 2. The inner hole of the conductive sleeve 21 is a fitting hole 211 that matches the conductive plate 11. A locking screw 3 is screwed onto the conductive sleeve 21, and the inner end of the locking screw 3 can enter into the fitting hole 211 as it is tightened. The conductive sleeves 21 on the two cables 2 are respectively fitted onto the two conductive plates 11, and the inner ends of the locking screws 3 on the two conductive sleeves 21 are respectively pressed tightly against the conductive plates 11 in the corresponding fitting holes 211.

[0020] In this high-voltage special lightning protection cable structure, the two conductive sleeves 21 can be detached from their corresponding conductive plates 11 by loosening the two locking screws 3, without needing to completely unscrew the locking screws 3, thus enabling rapid disassembly of the surge arrester 1. When installing the surge arrester 1, the conductive sleeves 21 are fitted onto the conductive plates 11, and then the locking screws 3 are tightened, allowing for quick installation and positioning of the surge arrester 1. Therefore, this high-voltage special lightning protection cable structure effectively simplifies the installation and disassembly process of the surge arrester, thereby improving the convenience and efficiency of surge arrester installation and disassembly; this also reduces the need for workers to remain at heights for extended periods, thus reducing safety hazards.

[0021] The use of a conductive plate 11 and the matching fitting hole 211 of the inner hole of the conductive sleeve 21 ensures sufficient area for the conductive sleeve 21 to fit the conductive plate 11, thereby guaranteeing the high reliability of this high-voltage special lightning protection cable structure. This results in excellent lightning protection and extended service life. Furthermore, the overall structure of this high-voltage special lightning protection cable is relatively simple. Therefore, this high-voltage special lightning protection cable structure has strong applicability.

[0022] Both the conductive plate 11 and the conductive sleeve 21 are made of steel. The two cables 2 are fixedly connected to the corresponding conductive sleeve 21 by welding, which can meet the requirements of stable connection and thus meet the requirements of actual use.

[0023] In practical use, grounding cables can be directly grounded or indirectly grounded (through power steel towers); cables connected to high-voltage lines can be directly connected to high-voltage lines or indirectly connected to high-voltage lines; and other components can be connected in series on the two cables to enhance lightning protection performance.

[0024] like Figure 1 and Figure 2 As shown, the lower end of the surge arrester 1 extends downward to form an inverted frustum-shaped mounting end 12. When making the mounting end 12, a funnel-shaped hole can be opened at the installation position of the surge arrester 1 for the mounting end 12 to be inserted. This facilitates the quick and stable installation and positioning of the surge arrester 1, thereby improving the applicability of this high-voltage special surge protection cable structure. The mounting end 12 can also be fitted with other auxiliary positioning frames for the surge arrester 1, and the fitting holes of the positioning frames can be made to match the mounting end 12, thus also satisfying the function of quick and stable installation of the surge arrester 1.

[0025] like Figure 1 As shown, the opening of the fitting hole 211 is flared. This helps to improve the ease of fitting the conductive sleeve 21, thereby further improving the ease of use of this high-voltage special lightning protection cable structure.

[0026] like Figure 1 and Figure 2 As shown, a shallow positioning groove 111 is provided on the conductive plate 11, and the inner end of the locking screw 3 is embedded in the shallow positioning groove 111. This ensures that the surge arrester 1 is easy to install and remove, and makes the conductive sleeve 21 fit on the conductive plate 11 more stably and reliably, avoiding loosening, thereby helping to further improve the reliability and applicability of the high-voltage special surge protection cable structure.

[0027] like Figure 1 As shown, the depth H of the positioning shallow groove 111 is 2.5mm to 3mm. This not only enables the positioning shallow groove 111 to play a very stable and reliable positioning role, but also ensures that the surge arrester 1 is very convenient to install and remove, thereby helping to further improve the applicability of this high-voltage special surge protection cable structure.

[0028] like Figure 1 and Figure 3 As shown, the inner end of the locking screw 3 is a cylindrical end 31 in the shape of an optical axis, and the outer corner of the cylindrical end 31 is a rounded corner 311. The positioning shallow groove 111 matches the outer end of the cylindrical end 31. This serves as a guiding and positioning function, thereby enabling the conductive sleeve 21 and the conductive plate 11 to be assembled more stably and reliably through the locking screw 3, which in turn helps to further improve the reliability and applicability of the high-voltage special lightning protection cable structure.

[0029] like Figure 1 and Figure 2 As shown, the end of the conductive plate 11 furthest from the surge arrester 1 is an arc-shaped convex end 112. This facilitates the installation of the conductive sleeve 21 onto the conductive plate 11, thereby further improving the applicability of this high-voltage special surge protection cable structure.

[0030] like Figure 1 As shown, the thickness X of the conductive plate 11 is 8mm to 16mm, and the wall thickness Y of the conductive sleeve 21 is 10mm to 15mm. This enables the conductive plate 11 and the conductive sleeve 21 to have a more stable and reliable structure, thereby helping to further improve the reliability and applicability of the high-voltage special lightning protection cable structure.

Claims

1. A high-voltage special lightning cable structure comprising a lightning arrester (1), two cables (2), characterized in that: The input end and the output end of the lightning arrester (1) are respectively provided with a conductive plate (11), one end of the two cables (2) is connected with a conductive sleeve (21), the inner hole of the conductive sleeve (21) is a sleeving hole (211) matched with the conductive plate (11), the conductive sleeve (21) is screwed with a locking screw (3), and the inner end of the locking screw (3) can enter the sleeving hole (211) as the locking screw (3) is tightened; the conductive sleeves (21) on the two cables (2) are respectively sleeved on the two conductive plates (11), and the inner ends of the locking screws (3) on the two conductive sleeves (21) are respectively tightly pressed on the conductive plates (11) in the corresponding sleeving holes (211).

2. The high voltage special lightning protective cable structure according to claim 1, characterized in that: The lower end of the lightning arrester (1) extends downward to form an inverted round table-shaped embedded end (12).

3. The high voltage special lightning protective cable structure according to claim 1, characterized in that: The aperture of the sleeving hole (211) is a horn mouth.

4. The high voltage special lightning protective cable structure according to claim 1, characterized in that: The conductive plate (11) is provided with a positioning shallow groove (111), and the inner end of the locking screw (3) is embedded in the positioning shallow groove (111).

5. The high voltage special lightning protective cable structure according to claim 4, characterized in that: The depth H of the positioning shallow groove (111) is 2.5mm-3mm.

6. The high voltage special lightning conductor cable structure according to claim 4 or 5, characterized in that: The inner end of the locking screw (3) is a light axis-shaped cylindrical end (31), the outer edge angle of the cylindrical end (31) is a round corner (311), and the positioning shallow groove (111) is matched with the outer end of the cylindrical end (31).

7. The high voltage special lightning protective cable structure according to claim 1, characterized in that: The end of the conductive plate (11) away from the lightning arrester (1) is an arc-shaped convex head end (112).

8. The high voltage special lightning cable structure according to claim 1, characterized in that: The thickness X of the conductive plate (11) is 8mm-16mm, and the wall thickness Y of the conductive sleeve (21) is 10mm-15mm.

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