Lightning arrester for high-voltage power transmission tower pole

Abstract

The utility model provides a lightning arrester for a high-voltage power transmission tower pole. The lightning arrester comprises a support frame fixedly mounted on the tower pole, a high-voltage wire erected below the support frame through an insulator, and a support fixedly mounted on the support frame. According to the lightning arrester for the high-voltage power transmission tower pole, the length of the part, extending out of the first insulating rod, of the second insulating rod can be adjusted while the second insulating rod is rotated through the handle, so that the lightning arrester can adjust the mounting distance between a third fixing pin and a lower electrode according to the distance between a suspension clamp and a wiring terminal; in the process, the lightning arrester body can automatically rotate around the guide mechanism, so that when the lightning arrester is mounted at different parts of the high-voltage power transmission tower pole, an operator does not need to adjust the mounting position of the lightning arrester for many times; the position of the lower electrode can be directly adjusted, so that the first conversion terminal can be normally connected with the second conversion terminal on the suspension clamp through the bolt, and the operation is very convenient.

Description

Technical Field

[0001] This utility model relates to the field of surge arrester technology, and specifically discloses a surge arrester for high-voltage transmission towers. Background Technology

[0002] High-voltage transmission towers use insulators to suspend the high-voltage lines. Surge arresters are installed on the high-voltage transmission towers. The surge arresters can act quickly in the event of a lightning strike, diverting the lightning current to the ground, limiting overvoltage on the line, and protecting the insulators and transmission lines from damage by lightning strikes.

[0003] The existing surge arrester has a relatively simple structure and cannot be adjusted. This means that when installing it on different parts of the high-voltage transmission tower, the operator needs to adjust the installation position of the surge arrester multiple times in order to make it properly connected to the high-voltage line, which is very inconvenient. Utility Model Content

[0004] In view of the above-mentioned defects or deficiencies in the prior art, this application aims to provide a high-voltage transmission tower surge arrester, including a support frame fixedly installed on the tower, a high-voltage line supported below the support frame by an insulator, a support fixedly installed on the support frame, and a suspension clamp fixedly fitted on the high-voltage line. A first U-shaped frame is rotatably connected to the inside of the support frame by a first fixing pin. A guide mechanism is fitted inside the first U-shaped frame. An insulating head is fitted inside the guide mechanism. The bottom end of the insulating head is provided with the surge arrester body. A grounding terminal is provided on the outer side of the top end of the surge arrester body. An upper electrode is rotatably connected to the inside of the bottom end of the surge arrester body by a third fixing pin. A first insulating rod is provided on the outer side of one end of the upper electrode. An adjustment mechanism is threaded inside the first insulating rod. A third insulating rod is fitted inside the adjustment mechanism. A lower electrode is provided at one end of the third insulating rod. A first adapter terminal is provided on the end face of the third insulating rod. A second adapter terminal, located outside the suspension clamp, is bolted and fixed inside the first adapter terminal.

[0005] Preferably, the guiding mechanism includes a fixed sleeve that is movably fitted inside the first U-shaped frame and movably fitted outside the top of the insulating head. The fixed sleeve is fitted with a second fixing pin that is movably fitted inside the insulating head. The fixed sleeve extends to the outer side of the top of the first U-shaped frame and is provided with a first annular boss located below the support.

[0006] Preferably, the outer side of the support is provided with a limiting sleeve that is movably sleeved outside the first fixing pin and symmetrically distributed inside the first U-shaped frame.

[0007] Preferably, the adjusting mechanism includes a second insulating rod threaded inside the first insulating rod, a second U-shaped frame movably fitted on the outer side of one end of the second insulating rod and snapped onto the outer side of one end of the third insulating rod, a fourth fixing pin movably fitted inside the second U-shaped frame and fixedly fitted inside the third insulating rod, a second annular boss provided on the outer side of one end of the second insulating rod extending to the inner side of the second U-shaped frame, and a handle located on the outer side of the second U-shaped frame fixedly fitted inside the second insulating rod.

[0008] Preferably, the outer side of one end of the third insulating rod is provided with a clearance opening that is adapted to the second U-shaped frame.

[0009] Compared with the prior art, the present invention has the following beneficial effects.

[0010] 1. This high-voltage transmission tower surge arrester allows for adjustment of the length of the second insulating rod extending beyond the first insulating rod by rotating the second insulating rod via a handle. This allows the arrester to adjust the installation distance between the third fixing pin and the lower electrode based on the gap between the suspension clamp and the terminal block. During this process, the arrester body rotates automatically around the guide mechanism. This structure eliminates the need for operators to repeatedly adjust the arrester's installation position when installing it at different locations on the high-voltage transmission tower. The lower electrode position can be directly adjusted to allow the first adapter terminal to connect to the second adapter terminal on the suspension clamp via bolts, making the process very convenient.

[0011] 2. This high-voltage transmission tower surge arrester can limit the second U-shaped frame through the clearance opening, while preventing the second U-shaped frame from rotating around the axis of the fourth fixing pin, so that the second insulating rod can be rotated through the handle. Attached Figure Description

[0012] Other features, objects, and advantages of this application will become more apparent from the following detailed description of non-limiting embodiments with reference to the accompanying drawings:

[0013] Figure 1 This is a schematic diagram of the structure of this utility model;

[0014] Figure 2 This is a schematic diagram of the guiding mechanism of this utility model;

[0015] Figure 3 This is a schematic diagram of the adjustment mechanism of this utility model;

[0016] Figure 4 This is a schematic diagram of the third insulating rod of this utility model;

[0017] Figure 5 This is a schematic diagram of the suspension clamp of this utility model.

[0018] In the diagram: 1. Support frame; 2. Insulator; 3. High-voltage line; 4. Support; 5. Suspension clamp; 6. First fixing pin; 7. First U-shaped frame; 8. Guide mechanism; 81. Fixing sleeve; 82. Second fixing pin; 83. First annular boss; 9. Insulating head; 10. Surge arrester body; 11. Grounding terminal; 12. Wiring terminal; 13. Third fixing pin; 14. Upper electrode; 15. First insulating rod; 16. Adjustment mechanism; 161. Second insulating rod; 162. Second U-shaped frame; 163. Fourth fixing pin; 164. Second annular boss; 165. Handle; 17. Third insulating rod; 18. Lower electrode; 19. First adapter terminal; 20. Second adapter terminal; 21. Limiting sleeve; 22. Alternating slot. Detailed Implementation

[0019] The present application will now be described in further detail with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are for illustrative purposes only and are not intended to limit the scope of the invention. Furthermore, it should be noted that, for ease of description, only the parts relevant to the invention are shown in the accompanying drawings.

[0020] The accompanying drawings in this utility model embodiment: different types of cross-sectional lines in the drawings are not labeled according to national standards, nor do they specify the material requirements of the components. They are used to distinguish the cross-sectional views of the components in the drawings.

[0021] Please see Figure 1-5 A high-voltage transmission tower surge arrester includes a support frame 1 fixedly installed on the tower, a high-voltage line 3 supported below the support frame 1 via insulators 2, a bracket 4 fixedly installed on the support frame 1, and a suspension clamp 5 fixedly fitted onto the high-voltage line 3. A first U-shaped frame 7 is rotatably connected to the inside of the bracket 4 via a first fixing pin 6. A guide mechanism 8 is fitted inside the first U-shaped frame 7, and an insulating head 9 is fitted inside the guide mechanism 8. A surge arrester body 10 is located at the bottom end of the insulating head 9. A grounding terminal 11 is located on the outer side of the top end of the surge arrester body 10, and a third fixing pin 13 is located inside the bottom end of the surge arrester body 10. An upper electrode 14 is rotatably connected. A first insulating rod 15 is provided on the outer side of one end of the upper electrode 14. An adjusting mechanism 16 is threaded inside the first insulating rod 15. A third insulating rod 17 is provided on the inner side of the adjusting mechanism 16. A lower electrode 18 is provided at one end of the third insulating rod 17. A first adapter terminal 19 is provided on the end face of the lower electrode 18. A second adapter terminal 20 is provided on the outer side of the suspension clamp 5 and fixed inside the first adapter terminal 19 with a bolt. Through the cooperation of the suspension clamp 5, the first adapter terminal 19, the second adapter terminal 20 and the bolt, an electrical connection can be made between the support 4 and the lower electrode 18.

[0022] The guiding mechanism 8 includes a fixed sleeve 81 that is movably fitted inside the first U-shaped frame 7 and movably fitted outside the top of the insulating head 9. The fixed sleeve 81 is fitted with a second fixing pin 82 that is movably fitted inside the insulating head 9. The fixed sleeve 81 extends to the outer side of the top of the inner side of the first U-shaped frame 7 and is provided with a first annular boss 83 located below the support 4. The first annular boss 83 can limit the fixed sleeve 81 and the support 4 can further limit the fixed sleeve 81, so that the fixed sleeve 81 will not move along its own axis. The fixed sleeve 81 can rotate around its own axis, and the surge arrester body 10 can rotate synchronously, so as to adjust the installation position of the lower electrode 18 according to the actual installation position of the suspension clamp 5.

[0023] Among them, the outer side of the support 4 is provided with a limiting sleeve 21 that is movably sleeved outside the first fixed pin 6 and symmetrically distributed inside the first U-shaped frame 7. The limiting sleeve 21 can limit and support the first U-shaped frame 7, so that the surge arrester body 10 will not shake along the axis of the first fixed pin 6 during the rotation of the first U-shaped frame 7 around the axis of the first fixed pin 6.

[0024] The adjusting mechanism 16 includes a second insulating rod 161 threaded inside the first insulating rod 15. A second U-shaped frame 162, which is engaged with the outer side of one end of the second insulating rod 161, is movably fitted on the outer side of one end of the third insulating rod 17. A fourth fixing pin 163, which is movably fitted inside the second U-shaped frame 162, is fixedly fitted inside the third insulating rod 17. The cooperation between the second U-shaped frame 162 and the fourth fixing pin 163 can limit the second insulating rod 161, allowing it to rotate stably around its own axis through the cooperation of the second annular boss 164. The outer side of the end of the second insulating rod 161 extending to the inner side of the second U-shaped frame 162 is provided with the second annular boss 164, and a handle 165 located outside the second U-shaped frame 162 is fixedly fitted inside the second insulating rod 161. The handle 165 facilitates the rotation of the second insulating rod 161 and allows for adjustment of the length of the second insulating rod 161 extending outside the first insulating rod 15.

[0025] The outer side of one end of the third insulating rod 17 is provided with a clearance opening 22 that is compatible with the second U-shaped frame 162. The clearance opening 22 can stably limit and fix the second U-shaped frame 162 with the cooperation of the fourth fixing pin 163, so that the inner side of the second U-shaped frame 162 is reserved with sufficient clearance to ensure that it will not over-compress the second annular boss 164, and the second insulating rod 161 can rotate around its own axis.

[0026] During surge arrester installation, the support 4 is fixedly mounted on the support frame 1, the suspension clamp 5 is fitted onto the high-voltage line 3, the first U-shaped frame 7 is fitted onto the outside of the support 4 via the first fixing pin 6, and the insulating head 9 is fixedly fitted into the inside of the fixing sleeve 81 via the second fixing pin 82. The first adapter terminal 19 is lifted by the third insulating rod 17 and swung around the axis of the fixing sleeve 81. The alignment of the holes of the first adapter terminal 19 and the second adapter terminal 20 is observed. If the holes are aligned, the first adapter terminal 19 is directly fixed onto the second adapter terminal 20 using bolts. If the holes cannot be aligned, the length of the second insulating rod 161 extending beyond the first insulating rod 15 is adjusted by rotating the second insulating rod 161 through the handle 165 until the holes of the first adapter terminal 19 and the second adapter terminal 20 can be aligned. Then, the rotation of the second insulating rod 161 is stopped, and the first adapter terminal 19 is fixedly installed on the second adapter terminal 20 with bolts. The grounding terminal 11 is then connected to the ground wire on the tower to complete the installation of the surge arrester. The contents not described in detail in this specification are existing technologies known to those skilled in the art.

[0027] It should be noted that, unless otherwise specified, the embodiments and features described in this application can be combined with each other. This application will now be described in detail with reference to the accompanying drawings and embodiments.

[0028] The above description is merely a preferred embodiment of this application and an explanation of the technical principles employed. Those skilled in the art should understand that the scope of the utility model involved in this application is not limited to the technical solutions formed by specific combinations of the above-described technical features, but should also cover other technical solutions formed by arbitrary combinations of the above-described technical features or their equivalents without departing from the inventive concept. For example, technical solutions formed by substituting the above features with (but not limited to) technical features with similar functions disclosed in this application.

Claims

1. A lightning arrester for high-voltage transmission tower poles, comprising a support frame (1) fixedly installed on a tower pole, a high-voltage line (3) erected below the support frame (1) through an insulator (2), a support base (4) fixedly installed on the support frame (1), and a suspension clamp (5) fixedly sleeved on the high-voltage line (3), characterized in that: The inside first fixed pin (6) of the support (4) is rotationally connected with a first U-shaped frame (7), the inside of the first U-shaped frame (7) is sleeved with a guide mechanism (8), the inside of the guide mechanism (8) is sleeved with an insulating head (9), the bottom end of the insulating head (9) is provided with a lightning arrester body (10), the outside of the top end of the lightning arrester body (10) is provided with a grounding terminal (11), and the inside of the bottom end of the lightning arrester body (10) is rotationally connected with an upper electrode (14) through a third fixed pin (13), the outside of one end of the upper electrode (14) is provided with a first insulating rod (15), the inside of the first insulating rod (15) is threadedly sleeved with an adjusting mechanism (16), the inside of the adjusting mechanism (16) is sleeved with a third insulating rod (17), one end of the third insulating rod (17) is provided with a lower electrode (18), the end face is provided with a first adapter terminal (19), and the inside of the first adapter terminal (19) is sleeved and bolted with a second adapter terminal (20) arranged on the outside of the suspension clamp (5).

2. A high voltage transmission tower pole lightning arrester according to claim 1, characterized in that: The guide mechanism (8) comprises a fixed sleeve (81) movably sleeved in the inside of the first U-shaped frame (7) and movably sleeved on the outside of the top end of the insulating head (9), the inside of the fixed sleeve (81) is fixedly sleeved with a second fixed pin (82) movably sleeved in the inside of the insulating head (9), and the top end of the fixed sleeve (81) extending to the inside of the first U-shaped frame (7) is provided with a first annular boss (83) located below the support (4).

3. A high voltage transmission tower pole lightning arrester as claimed in claim 1, wherein: The outside of the support (4) is provided with a limiting sleeve (21) movably sleeved on the outside of the first fixed pin (6) and symmetrically distributed in the inside of the first U-shaped frame (7).

4. A high voltage transmission tower pole lightning arrester as claimed in claim 1, wherein: The adjusting mechanism (16) comprises a second insulating rod (161) threadedly sleeved in the inside of the first insulating rod (15), the outside of one end of the second insulating rod (161) is movably sleeved with a second U-shaped frame (162) clamped on the outside of one end of the third insulating rod (17), the inside of the second U-shaped frame (162) is fixedly sleeved with a fourth fixed pin (163) movably sleeved in the inside of the third insulating rod (17), one end of the second insulating rod (161) extending to the inside of the second U-shaped frame (162) is provided with a second annular boss (164), and the inside of the second insulating rod (161) is fixedly sleeved with a handle (165) located on the outside of the second U-shaped frame (162).

5. A high voltage transmission tower pole lightning arrester according to claim 4, characterized in that: The outside of one end of the third insulating rod (17) is provided with an avoiding opening (22) matched with the second U-shaped frame (162).

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