A porcelain insulator overvoltage protection live installation assembly

Abstract

The utility model discloses a kind of porcelain type insulator overvoltage protection live installation components, it is related to overvoltage protection technical field, it is characterized in that, including: symmetrical C-shaped clamping plate, adopt left and right split type structure design, include left plate, right plate, for accurate positioning and fixed;L-shaped plate, it is L-shaped, setting adjusting mounting hole and lightning arrester mounting hole, adjusting mounting hole is used for horizontal position adjustment, lightning arrester mounting hole is used for fixed lightning arrester, support flexible positioning adjustment;Positioning plate;U-shaped fixed bottom plate, is clamped in the gap between the bottom of insulator and the upper side of cross arm, the U-shaped fixed bottom plate matches the positioning plate and the symmetrical C-shaped clamping plate.The technical problem to be solved by the utility model is to provide a kind of porcelain type insulator overvoltage protection live installation components, can realize the quick disassembly and assembly operation to porcelain type insulator overvoltage protection under the live operation condition of power transmission line.

Description

Technical Field

[0001] This utility model relates to the field of overvoltage protection technology, specifically to a live-line installation assembly for overvoltage protection of porcelain insulators. Background Technology

[0002] With the large-scale application of 10kV overhead insulated conductors in power distribution lines, the overall insulation protection level and resistance to external damage of the lines have been significantly improved; however, it is worth noting that the rate of line breakage caused by lightning strikes has shown a significant upward trend.

[0003] According to the State Grid Corporation of China's Q / GDW1813-2013 "Guidelines for Lightning Protection of Overhead Insulated Lines in Distribution Networks," the current mainstream lightning protection solutions mainly employ two types of devices: "ring electrode external series gap surge arresters" and "built-in series gap surge arresters." Both types of devices require fixing to the line crossarm using pin-type insulators and matching bolts, and are directly connected to the conductor to achieve the protective function. Because installation requires close contact with live conductors, it is usually necessary to coordinate with power outage operations to ensure operational safety.

[0004] It is worth noting that in overhead power distribution networks, coastal cities, due to their special environments such as high salt spray and strong corrosion, widely use porcelain insulators as the main insulation components for their overhead lines.

[0005] Currently, there is a lack of a dedicated live-line installation component for overvoltage protection of porcelain insulators in coastal areas, which can enable rapid installation of surge arresters without power interruption, effectively reducing operational safety risks and improving maintenance efficiency. Utility Model Content

[0006] The technical problem to be solved by this utility model is to provide a live installation component for overvoltage protection of porcelain insulators, which can realize the rapid installation and removal of overvoltage protection for porcelain insulators under the condition of live operation of transmission lines.

[0007] This utility model achieves its invention objective using the following technical solution:

[0008] A live-line installation assembly for overvoltage protection of porcelain insulators, characterized by comprising: symmetrical C-shaped clamps, adopting a left-right split structure design, including a left plate and a right plate, for precise positioning and fixing; an L-shaped plate, L-shaped in shape, provided with adjustment mounting holes and surge arrester mounting holes, the adjustment mounting holes for lateral position adjustment, and the surge arrester mounting holes for fixing the surge arrester, supporting flexible positioning adjustment; a positioning plate; and a U-shaped fixing base plate, which is fitted into the gap between the bottom of the insulator and the top of the crossarm, the U-shaped fixing base plate matching the positioning plate and the symmetrical C-shaped clamps.

[0009] As a further limitation of this technical solution, the C-shaped clamp is provided with a first through hole, the U-shaped fixed base plate includes a C-shaped plate and an I-shaped plate, the C-shaped plate is fixedly connected to the I-shaped plate, the C-shaped plate is provided with symmetrical second through holes, the two first through holes match the symmetrical second through holes, the I-shaped plate is provided with a second slot, and the second slot matches the surge arrester mounting hole.

[0010] As a further limitation of this technical solution, the C-shaped clamp is provided with a half hole, the C-shaped plate is provided with a third through hole, and the two half holes match the third through hole.

[0011] As a further limitation of this technical solution, the positioning plate includes a horizontal plate, the horizontal plate is provided with a slot, the horizontal plate is provided with a symmetrical fifth through hole, and the C-shaped plate is provided with a symmetrical fourth through hole that matches the symmetrical fifth through hole.

[0012] As a further limitation of this technical solution, the I-shaped plate is provided with a first slot, the horizontal plate is connected to a positioning block, and the positioning block matches the first slot.

[0013] As a further limitation of this technical solution, the horizontal plate is connected to a U-shaped positioning rod, and the U-shaped positioning rod matches the I-shaped plate.

[0014] As a further limitation of this technical solution, the C-shaped plate is provided with symmetrical small holes.

[0015] Compared with related technologies, the ceramic insulator overvoltage protection live-line installation assembly provided by this utility model has the following advantages:

[0016] (1) It enables efficient live installation, meets the needs of live installation and removal of surge arresters with series gaps and similar electrical equipment, and is suitable for uninterrupted operation and maintenance of porcelain insulators in coastal high humidity and strong wind environments, ensuring continuous power supply.

[0017] (2) Dual safety protection: relying on the pin insulators of the line in operation to enhance the locking structure, even if the installation screws of the device are accidentally loosened, they can still be fixed again by the insulators, completely eliminating the risk of the device falling from a height; especially for coastal areas where typhoons frequently occur, it improves the safety of the equipment under extreme weather conditions.

[0018] (3) Flexible and economical, supporting the flexible selection of artificial grounding components according to the site environment, ensuring high compatibility with porcelain insulators and the varied coastal terrain; all key fasteners adopt national standard parts, which have the advantages of low cost, easy procurement and general tool maintenance, reducing long-term operation and maintenance costs under the complex coastal climate. Attached Figure Description

[0019] Figure 1This is a three-dimensional structural diagram of the present invention.

[0020] Figure 2 This is an exploded view of the present invention.

[0021] Figure 3 This is a three-dimensional structural diagram of the positioning plate of this utility model.

[0022] In the picture:

[0023] 1. C-shaped clamp; 11. First perforation; 12. Half-hole;

[0024] 2. U-shaped fixed base plate, 21. C-shaped plate, 211. Fourth through hole, 212. Small hole, 213. Third through hole, 214. Second through hole, 22. I-shaped plate, 221. First groove, 222. Second groove;

[0025] 3. Positioning plate; 31. Horizontal plate; 311. Groove; 312. Fifth through hole; 32. Positioning block; 33. U-shaped positioning rod.

[0026] 4. L-shaped plate; 41. Adjustment mounting hole; 42. Lightning arrester mounting hole. Detailed Implementation

[0027] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0028] Example 1: A live-line installation assembly for overvoltage protection of porcelain insulators, comprising: symmetrical C-shaped clamps 1, adopting a split left-right structure design, including a left plate and a right plate, for precise positioning and fixing; an L-shaped plate 4, L-shaped, with adjustment mounting holes 41 and surge arrester mounting holes 42, the adjustment mounting holes 41 being used for lateral position adjustment, and the surge arrester mounting holes 42 being used for fixing the surge arrester, supporting flexible positioning adjustment; a positioning plate 3; and a U-shaped fixing base plate 2, which is fitted into the gap between the bottom of the insulator and the top of the crossarm, the U-shaped fixing base plate 2 matching the positioning plate 3 and the symmetrical C-shaped clamps 1.

[0029] The C-shaped clamp 1 is provided with a first through hole 11. The U-shaped fixed base plate 2 includes a C-shaped plate 21 and an I-shaped plate 22. The C-shaped plate 21 is fixedly connected to the I-shaped plate 22. The C-shaped plate 21 is provided with symmetrical second through holes 214. The two first through holes 11 are matched with symmetrical second through holes 214. The I-shaped plate 22 is provided with a second slot 222. The second slot 222 is matched with the surge arrester mounting hole 42.

[0030] The C-shaped clamp 1 is provided with a half hole 12, and the C-shaped plate 21 is provided with a third through hole 213, and the two half holes 12 are matched with the third through hole 213.

[0031] The positioning plate 3 includes a horizontal plate 31, which has a slot 311 and a symmetrical fifth through hole 312. The C-shaped plate 21 has a symmetrical fourth through hole 211 that matches the symmetrical fifth through hole 312.

[0032] The C-shaped plate 21 is provided with symmetrical small holes 212.

[0033] The working principle of the porcelain insulator overvoltage protection live-line installation assembly provided by this utility model is as follows:

[0034] Lateral alignment of surge arrester

[0035] The surge arrester is installed in the surge arrester mounting hole 42 of the L-shaped plate 4. The position is adjusted laterally using the adjusting mounting hole 41 to ensure that the external discharge gap ring is precisely coaxial with the insulator shaft, thus ensuring the consistency of the discharge path.

[0036] Longitudinal gap adjustment of surge arrester

[0037] The L-shaped plate 4 is fixed to the I-shaped plate 22 of the U-shaped fixed base plate 2 by adjusting the fixing bolts. The bolt position is then finely adjusted using the second slot 222 to ensure that the gap between the external discharge gap ring of the surge arrester and the conductor strictly meets the installation specifications (such as air gap distance and discharge voltage parameters).

[0038] The device is fixedly installed as a whole.

[0039] The U-shaped fixing base plate 2 with C-shaped clamp 1 is clamped into the gap between the bottom of the insulator and the top of the crossarm. Bolts are threaded through the first through hole 11 and the half hole 12 to connect the second through hole 214 and the third through hole 213 respectively, thus realizing the connection between the C-shaped clamp 1 and the U-shaped fixing base plate 2. Tighten the limiting screws to constrain the position of the device; use the insulator's own structure to firmly lock the device to the crossarm. Check whether the limiting screws are reliably embedded in the guide limiting hole of the C-shaped clamp 1 at the root of the insulator. Finally, tighten the mounting screws to complete the mechanical locking.

[0040] Place the insulator bottom to bottom into slot 311, and use a bolt to thread it through the fourth through hole 211 to connect to the fifth through hole 312.

[0041] Quick dismantling of equipment

[0042] First, loosen the two mounting bolts (connecting the first through hole 11 and the second through hole 214) to release the lateral constraint, and then loosen the bolts connecting the half hole 12 and the third through hole 213; using a special insulated tool, pull the C-shaped clamp 1 with uniform force along the line direction parallel to the upper edge of the crossarm to smoothly remove it from the root of the insulator, so that the entire device can be quickly removed without affecting the normal operation of the line.

[0043] Example 2: This example is a further elaboration based on Example 1. The I-shaped plate 22 is provided with a first slot 221, the horizontal plate 31 is connected to the positioning block 32, and the positioning block 32 matches the first slot 221.

[0044] The working principle of the porcelain insulator overvoltage protection live-line installation assembly provided by this utility model is as follows:

[0045] When installing the positioning plate 3, place the positioning block 32 into the first slot 221, move the positioning plate 3, and place the bottom of the insulator into the slot 311.

[0046] Example 2: This example is a further elaboration based on Example 1 or 2. The horizontal plate 31 is connected to the U-shaped positioning rod 33, and the U-shaped positioning rod 33 is matched with the I-shaped plate 22.

[0047] The working principle of the porcelain insulator overvoltage protection live-line installation assembly provided by this utility model is as follows:

[0048] When installing the positioning plate 3, the U-shaped positioning rod 33 is used to lock the I-shaped plate 22.

[0049] The above description is merely an embodiment of this utility model and does not limit the patent scope of this utility model. Any equivalent structural or procedural transformations made based on the content of this utility model specification and drawings, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of this utility model.

Claims

1. A live-line installation assembly for overvoltage protection of porcelain insulators, characterized in that, include: The symmetrical C-shaped clamp (1) adopts a left-right split structure design, including a left plate and a right plate; L-shaped plate (4), in the shape of an L, is provided with adjustment mounting hole (41) and surge arrester mounting hole (42); Positioning plate (3); The U-shaped fixing base plate (2) is fitted into the gap between the bottom of the insulator and the top of the crossarm. The U-shaped fixing base plate (2) matches the positioning plate (3) and the symmetrical C-shaped clamping plate (1).

2. The live-line installation assembly for overvoltage protection of porcelain insulators according to claim 1, characterized in that: The C-shaped clamp (1) is provided with a first through hole (11). The U-shaped fixed base plate (2) includes a C-shaped plate (21) and an I-shaped plate (22). The C-shaped plate (21) is fixedly connected to the I-shaped plate (22). The C-shaped plate (21) is provided with symmetrical second through holes (214). The two first through holes (11) match the symmetrical second through holes (214). The I-shaped plate (22) is provided with a second slot (222). The second slot (222) matches the surge arrester mounting hole (42).

3. The live-line installation assembly for overvoltage protection of porcelain insulators according to claim 2, characterized in that: The C-shaped clamp (1) is provided with a half hole (12), and the C-shaped plate (21) is provided with a third through hole (213), and the two half holes (12) match the third through hole (213).

4. The live-line installation assembly for overvoltage protection of porcelain insulators according to claim 2, characterized in that: The positioning plate (3) includes a horizontal plate (31), which is provided with a slot (311) and a symmetrical fifth through hole (312). The C-shaped plate (21) is provided with a symmetrical fourth through hole (211) that matches the symmetrical fifth through hole (312).

5. The live-line installation assembly for overvoltage protection of porcelain insulators according to claim 4, characterized in that: The I-shaped plate (22) is provided with a first slot (221), and the horizontal plate (31) is connected to the positioning block (32), which matches the first slot (221).

6. The live-line installation assembly for overvoltage protection of porcelain insulators according to claim 4 or 5, characterized in that: The horizontal plate (31) is connected to the U-shaped positioning rod (33), and the U-shaped positioning rod (33) matches the I-shaped plate (22).

7. The live-line installation assembly for overvoltage protection of porcelain insulators according to claim 2, characterized in that: The C-shaped plate (21) is provided with symmetrical small holes (212).

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