10kV lightning arrester capable of being installed in live-line mode

Abstract

The invention provides a 10kV lightning arrester capable of being installed in an electrified mode, and relates to the technical field of electrical equipment. A first hoop plate is arranged on the outer side of the top of the fixed stand column, a second hoop plate is arranged on the opposite side of the first hoop plate, the first hoop plate and the second hoop plate are fixedly connected through a connecting bolt, the two sides of the second hoop plate are fixedly connected with installation angle iron, and an installation structure is arranged on the installation angle iron. Through the arrangement of the installation structure and the cooperation of a limiting clamping tongue, a reset cavity and a first spring, automatic clamping can be achieved through extrusion of installation angle iron and reset of the spring during live-line installation, temporary fixing is rapidly completed, and then through the cooperation of a threaded lead screw, a threaded hole and a pressing plate, the lightning arrester can be installed conveniently and rapidly. The lightning arrester is rigidly and permanently fixed, power-off operation is not needed, power-off loss caused by traditional power-off operation is avoided, and the reliability of power supply is improved.

Description

Technical Field

[0001] This invention relates to the field of electrical equipment technology, and in particular to a 10kV surge arrester that can be installed energized. Background Technology

[0002] As a core protection device in 10kV power line systems, surge arresters bear the critical responsibility of ensuring the safe operation of lines and terminal equipment. Their core function is to precisely limit the amplitude of lightning overvoltages and switching overvoltages, and to rapidly discharge surge currents generated by abnormal voltages. This prevents overvoltages from breaking down line insulation layers and damaging transformers, switches, and other critical power equipment, thereby effectively reducing the risk of line tripping, equipment damage, and other faults. It maintains the continuity and stability of the 10kV distribution network, providing reliable safety protection for industrial production and residential electricity consumption.

[0003] The installation of existing surge arresters usually requires power outages, which not only affects the continuity of power supply and causes power outage losses for users, but also has the problems of cumbersome operation procedures and low efficiency. Therefore, there is a need for a surge arrester that can be installed under energized conditions. Through optimized structural design, it is possible to achieve rapid installation without power outages, which can avoid various losses caused by power outages, greatly simplify the operation process, reduce labor intensity, and significantly improve operation efficiency and the reliability of power distribution network. Summary of the Invention

[0004] In view of this, the present invention provides a 10kV surge arrester that can be installed live. Through the design of its installation structure, the cooperation of a limiting latch, a reset cavity, and a first spring allows for automatic locking during live installation via the compression of the installation angle iron and the spring reset, quickly completing temporary fixation. Then, through the cooperation of a threaded rod, threaded hole, and pressure plate, the surge arrester is rigidly and permanently fixed without the need for power outage operations, avoiding power loss caused by traditional power cut-off work and improving power supply reliability. Through the design of the reinforcement components, the cooperation of a movable plate, a second spring, and a limiting latch allows for automatic engagement with the outside of the nut after it is fixed, effectively preventing accidental loosening of the nut due to unforeseen factors, improving the installation stability of the surge arrester, and ensuring its long-term stable operation.

[0005] This invention provides a 10kV surge arrester that can be installed energized, specifically including: a fixed column and an installation structure; The top outer side of the fixed column is provided with a first hoop plate, and a second hoop plate is provided on the opposite side of the first hoop plate. The first hoop plate and the second hoop plate are fixedly connected by connecting bolts. Mounting angle irons are fixedly connected to both sides of the second hoop plate. The mounting angle irons are provided with mounting structures, including: A mounting plate is installed on the mounting angle iron. A surge arrester is provided at the top of one end of the mounting plate. A fixing stud is fixedly connected to the bottom of the surge arrester. A mounting nut is engaged on the fixing stud. A fixed convex frame is fixedly installed on the top of the mounting plate. A connecting vertical cylinder is fixedly connected to the top of the fixed convex frame. A movable sliding hole is opened in the middle of the connecting vertical cylinder, and a reset cavity is opened inside the connecting vertical cylinder. Limiting tongue: Located at the bottom of the fixed convex frame, the top of the limiting tongue is fixedly connected to a connecting slide rod, which passes through the movable slide hole and is fixedly connected to the extrusion convex plate in the reset cavity. At the same time, the bottom of the fixed convex frame at the top of the limiting tongue has a movable groove. Fixed horizontal plate: It is fixedly connected to the mounting plate. The bottom of the fixed horizontal plate is fixedly connected to the connecting recess. The connecting recess has a threaded hole. A threaded screw is engaged in the threaded hole. One end of the threaded screw is provided with a clamping plate.

[0006] Furthermore, a first spring is provided in the reset cavity.

[0007] Furthermore, a connecting shaft cap is fixedly connected to the middle of one end of the clamping plate near the threaded screw, and a bearing is fixedly installed inside the connecting shaft cap. The end of the threaded screw is fixedly connected to the inner shaft of the bearing.

[0008] Furthermore, guide strips are fixedly connected to both sides of the clamping plate, and a limiting groove is provided on the fixed horizontal plate, with the guide strips slidingly installed in the limiting groove.

[0009] Furthermore, the mounting plate is provided with a reinforcing component, which includes a through groove, a guide slide rod, and a fixed cross cylinder. The mounting plate has a through groove, in which a guide slide rod is fixedly connected, and a fixed cross cylinder is provided between the guide slide rods.

[0010] Furthermore, a sliding support hole is provided in the middle of the fixed cross cylinder, and an extrusion groove is provided inside the fixed cross cylinder, with a second spring provided in the extrusion groove.

[0011] Furthermore, the groove is provided with a movable belt plate, which has a guide sliding hole that fits with the guide slide rod. A fixed support rod is fixedly connected to the side of the movable belt plate near the fixed cross cylinder. The fixed support rod passes through the sliding support hole and is fixedly connected to the extrusion protrusion ring in the extrusion groove. At the same time, a handle is fixedly connected to the movable belt plate.

[0012] Furthermore, a connecting base block is fixedly connected to the bottom of the movable belt plate, and a limiting slot is opened in the middle of one end of the connecting base block. The limiting slot fits and is fitted onto the outside of the mounting nut.

[0013] The 10kV live-mountable surge arrester provided by this invention has the following beneficial effects. 1. Through the installation structure, the combination of the limiting latch, the reset cavity and the first spring can achieve automatic clamping during live installation by the squeezing of the installation angle iron and the spring reset, quickly completing temporary fixation. Then, through the cooperation of the threaded rod, threaded hole and clamping plate, the surge arrester is rigidly and permanently fixed without the need for power outage operation, avoiding the power outage losses caused by traditional power outage operations and improving the reliability of power supply.

[0014] 2. By setting up the reinforcement components, and through the cooperation of the movable belt plate, the second spring and the limit slot, it can automatically lock into the outside of the nut after the installation nut is fixed, effectively avoiding the accidental loosening of the installation nut caused by unexpected factors, improving the installation stability of the surge arrester and ensuring the long-term stable operation of the surge arrester. Attached Figure Description

[0015] To more clearly illustrate the technical solutions of the embodiments of the present invention, the accompanying drawings of the embodiments will be briefly described below.

[0016] The accompanying drawings described below are only related to some embodiments of the invention and are not intended to limit the invention.

[0017] In the attached diagram: Figure 1 A schematic diagram of the overall structure according to the present invention is shown; Figure 2 A schematic diagram of the installation structure according to the present invention is shown; Figure 3 A cross-sectional structural diagram of some components in the mounting structure according to the present invention is shown; Figure 4 A schematic diagram of some components in the mounting structure according to the present invention is shown; Figure 5 A schematic diagram of the disassembled structure of some components in the installation structure according to the present invention is shown; Figure 6 A schematic diagram of the reinforcement component structure according to the present invention is shown; Figure 7 A schematic cross-sectional view of a portion of the reinforcement assembly according to the present invention is shown. Figure 8 A schematic diagram of the structure of some components in the reinforcement assembly according to the present invention is shown; List of reference numerals 1. Fix the column; 101. First hoop plate; 1011. Second hoop plate; 102. Connecting bolts; 103. Install angle iron; 2. Installation structure; 201. Install the support plate; 2011. Lightning arrester; 2012. Fix the studs; 2013. Install the nuts; 202. Fixed convex frame; 2021. Connecting vertical cylinder; 2022. Movable sliding hole; 2023. Reset cavity; 2024. First spring; 203. Limiting latch; 2031. Connecting slide bar; 2032. Extrusion punch; 2033. Movable groove; 204. Fixed cross plate; 2041. Connecting bracket; 2042. Threaded hole; 2043. Threaded screw; 205. Clamping plate; 2051. Connecting shaft cap; 2052. Bearing; 206. Guide side strip; 2061. Limiting slide groove; 3. Reinforced components; 301. Through groove; 3011. Guide slide rod; 3012. Fixed cross cylinder; 302, sliding support hole; 3021, extrusion groove; 3022, second spring; 303. Movable plate; 3031. Guide slide hole; 3032. Fixed support rod; 3033. Extrusion protrusion ring; 3034. Handle; 304. Connecting base block; 3041. Limiting slot. Detailed Implementation

[0018] Example 1: Please refer to Figures 1 to 8 : This invention proposes a 10kV surge arrester that can be installed energized, comprising: a fixed column 1 and an installation structure 2; A first hoop plate 101 is provided on the outer side of the top of the fixed column 1, and a second hoop plate 1011 is provided on the opposite side of the first hoop plate 101. The first hoop plate 101 and the second hoop plate 1011 are fixedly connected by connecting bolts 102. Mounting angle irons 103 are fixedly connected to both sides of the second hoop plate 1011. Mounting angle irons 103 are provided with mounting structures 2, which include: Mounting support plate 201 is mounted on mounting angle iron 103. A surge arrester 2011 is provided at the top of one end of the mounting support plate 201. A fixing stud 2012 is fixedly connected to the bottom of the surge arrester 2011. A mounting nut 2013 is engaged on the fixing stud 2012. A fixed protruding frame 202 is fixedly installed on the top of the mounting support plate 201. A connecting vertical cylinder 2021 is fixedly connected to the top of the fixed protruding frame 202. A movable sliding hole 2022 is provided in the middle of the connecting vertical cylinder 2021. A reset cavity 2023 is provided inside the connecting vertical cylinder 2021. Limiting tongue 203: Located at the bottom of the fixed protrusion 202, the top of the limiting tongue 203 is fixedly connected to the connecting slide rod 2031, the connecting slide rod 2031 passes through the movable slide hole 2022 and is fixedly connected to the extrusion protrusion 2032 in the reset cavity 2023, and at the same time, the bottom of the fixed protrusion 202 is provided with a movable groove 2033; Fixed horizontal plate 204: Fixedly connected to the mounting support plate 201. A connecting recess 2041 is fixedly connected to the bottom of the fixed horizontal plate 204. A threaded hole 2042 is opened on the connecting recess 2041. A threaded screw 2043 is engaged in the threaded hole 2042. A clamping plate 205 is provided at one end of the threaded screw 2043.

[0019] The reset cavity 2023 is equipped with a first spring 2024.

[0020] A connecting shaft cap 2051 is fixedly connected to the middle of one end of the clamping plate 205 near the threaded screw 2043. A bearing 2052 is fixedly installed inside the connecting shaft cap 2051. The end of the threaded screw 2043 is fixedly connected to the inner shaft of the bearing 2052.

[0021] Guide side strips 206 are fixedly connected to both sides of the clamping plate 205. A limit groove 2061 is opened on the fixed horizontal plate 204. The guide side strips 206 are slidably installed in the limit groove 2061.

[0022] By passing the fixing stud 2012 at the bottom of the surge arrester 2011 through the mounting plate 201, and then tightening the mounting nut 2013 to fix the surge arrester 2011 to the mounting plate 201, the mounting plate 201 is then secured to the special insulating operating rod. The mounting plate 201 is then raised by holding the special insulating operating rod, bringing it close to the mounting angle iron 103. The position of the mounting plate 201 on the mounting angle iron 103 is then adjusted so that it presses against the limiting tongue 203, causing it to retract into the movable groove 2033. Once the mounting plate 201 is adjusted to the appropriate position on the mounting angle iron 103, the mounting angle iron 103 no longer presses against the limiting tongue 203. Due to the previous pressing of the limiting tongue 203, the limiting tongue 203 synchronously moves the connecting slide rod 2031, which in turn moves the pressing cam 2032 against the reset cavity 2033. The first spring 2024 in 23 is compressed, causing it to elastically deform. When the compression is insufficient, the first spring 2024 releases its elasticity, thereby pushing the compression cam 2032 to move. The compression cam 2032 then drives the limiting tongue 203 to reset through the connecting slide rod 2031, so that it is locked on one side of the mounting angle iron 103, thus completing the pre-fixation. Then, the special insulating operating rod is locked at the bottom of the threaded rod 2043. By rotating the insulating operating rod, the threaded rod 2043 is driven to rotate. Under the meshing action of the threaded hole 2042, the threaded rod 2043 is engaged and rises, thereby pushing the pressure plate 205 to rise. Finally, the pressure plate 205 presses and fixes the mounting support plate 201, thus completing the live installation of the surge arrester 2011. A wire harness of about 0.8M is connected to the top of the surge arrester 2011. The end of the wire harness is connected to the live working guide clamp by bolts.

[0023] Example 2: Based on Example 1, wherein, as Figures 6 to 8 As shown, the mounting plate 201 is provided with a reinforcing component 3. The reinforcing component 3 includes a through groove 301, a guide slide rod 3011 and a fixed cross cylinder 3012. The mounting plate 201 is provided with a through groove 301. The guide slide rod 301 is fixedly connected in the through groove 301. The fixed cross cylinder 3012 is provided between the guide slide rods 3011.

[0024] A sliding support hole 302 is provided in the middle of the fixed horizontal cylinder 3012, and an extrusion groove 3021 is provided inside the fixed horizontal cylinder 3012. A second spring 3022 is provided in the extrusion groove 3021.

[0025] A movable belt plate 303 is provided in the groove 301. The movable belt plate 303 has a guide sliding hole 3031 that fits with the guide slide rod 3011. A fixed support rod 3032 is fixedly connected to the side of the movable belt plate 303 near the fixed cross cylinder 3012. The fixed support rod 3032 passes through the sliding support hole 302 and is fixedly connected to the extrusion protrusion ring 3033 in the extrusion groove 3021. At the same time, a handle 3034 is fixedly connected to the movable belt plate 303.

[0026] The bottom of the movable plate 303 is fixedly connected to a connecting base block 304. A limiting groove 3041 is opened in the middle of one end of the connecting base block 304. The limiting groove 3041 is fitted and locked onto the outside of the mounting nut 2013.

[0027] When installing the surge arrester 2011 onto the mounting plate 201, the movable belt plate 303 needs to be moved by holding the handle 3034, and then the mounting nut 2013 is turned to the appropriate torque. Then, the handle 3034 is released. Because the movable belt plate 303 moved earlier, it moved the fixed support rod 3032. The fixed support rod 3032 then moved the compression ring 3033 to compress the second spring 3022 in the compression groove 3021, making it elastic. When the handle 3034 is released, the second spring 3022 loses pressure, thereby releasing elasticity and pushing the compression ring 3033 to move. The compression ring 3033 then moves the fixed support rod 3032. The fixed support rod 3032 then pushes the movable belt plate 303 to reset the connecting bottom block 304. Finally, the limiting slot 3041 is locked on the outside of the mounting nut 2013, further limiting the mounting nut 2013 and preventing the surge arrester 2011 from loosening due to accidental rotation of the mounting nut 2013.

[0028] The specific usage and function of this embodiment: In this invention, firstly, by holding the handle 3034, the movable belt plate 303 is moved. Then, the fixing stud 2012 at the bottom of the surge arrester 2011 passes through the mounting support plate 201, and the mounting nut 2013 is turned to fix the surge arrester 2011 to the mounting support plate 201. After turning the mounting nut 2013 to a suitable torque, the handle 3034 is released. Because the movable belt plate 303 moved earlier, it drove the fixed support rod 3032 to move. The fixed support rod 3032 then drove the compression ring 3033 to compress the second spring 3022 in the compression groove 3021, making it elastic. When the handle 3034 is released, the second spring... When pressure is released from 3022, the elasticity is released, pushing the compression ring 3033 to move. The compression ring 3033 then moves the fixed support rod 3032, which in turn pushes the movable plate 303 to reset the connecting bottom block 304. This ultimately causes the limiting slot 3041 to engage with the outside of the mounting nut 2013, further limiting the mounting nut 2013 and preventing accidental rotation that could loosen the surge arrester 2011, thus improving the installation stability of the surge arrester. Then, the mounting plate 201 is engaged with the dedicated insulating operating rod. By holding the dedicated insulating operating rod, the mounting plate 201 is raised closer to the mounting angle iron 103. The mounting plate is then adjusted... The mounting plate 201 is positioned on the mounting angle iron 103, causing it to press against the limiting latch 203, retracting it into the movable groove 2033. When the mounting plate 201 is adjusted to the appropriate position of the mounting angle iron 103, the mounting angle iron 103 no longer presses against the limiting latch 203. Due to the previous pressing of the limiting latch 203, the limiting latch 203 synchronously drives the connecting slide rod 2031 to move. The connecting slide rod 2031 then drives the pressing cam 2032 to compress the first spring 2024 in the reset cavity 2023, causing the first spring 2024 to undergo elastic deformation. When the pressing is insufficient, the first spring 2024 releases its elasticity, thereby pushing the extruder... The pressing cam 2032 moves, and the pressing cam 2032 drives the limiting tongue 203 to reset through the connecting slide rod 2031, so that it is locked on one side of the mounting angle iron 103, thus completing the pre-fixation. Then, the special insulating operating rod is locked at the bottom of the threaded rod 2043. By rotating the insulating operating rod, the threaded rod 2043 is driven to rotate. Under the meshing action of the threaded hole 2042, the threaded rod 2043 is engaged and raised, thereby pushing the pressing plate 205 to rise. Finally, the pressing plate 205 presses and fixes the mounting support plate 201, thus completing the live installation of the surge arrester 2011. No power outage operation is required, avoiding the power outage losses caused by traditional power outage operations and improving the reliability of power supply.

Claims

1. A 10kV surge arrester that can be installed live, comprising: Fixed column (1) and installation structure (2); The top outer side of the fixed column (1) is provided with a first hoop plate (101), and a second hoop plate (1011) is provided on the opposite side of the first hoop plate (101). The first hoop plate (101) and the second hoop plate (1011) are fixedly connected by connecting bolts (102). Angle irons (103) are fixedly connected to both sides of the second hoop plate (1011). An installation structure (2) is provided on the angle irons (103). The installation structure (2) is characterized in that it includes: Mounting support plate (201) is mounted on mounting angle iron (103). A surge arrester (2011) is provided at the top of one end of the mounting support plate (201). A fixing stud (2012) is fixedly connected to the bottom of the surge arrester (2011). A mounting nut (2013) is engaged on the fixing stud (2012). A fixed convex frame (202) is fixedly installed on the top of the mounting plate (201). A connecting vertical cylinder (2021) is fixedly connected to the top of the fixed convex frame (202). A movable sliding hole (2022) is opened in the middle of the connecting vertical cylinder (2021). A reset cavity (2023) is opened inside the connecting vertical cylinder (2021). Limiting tongue (203): Located at the bottom of the fixed protrusion (202), the top of the limiting tongue (203) is fixedly connected to the connecting slide rod (2031), the connecting slide rod (2031) passes through the movable slide hole (2022) and is fixedly connected to the extrusion protrusion (2032) in the reset cavity (2023), and at the same time, the bottom of the fixed protrusion (202) at the top of the limiting tongue (203) is provided with a movable groove (2033); Fixed horizontal plate (204): Fixedly connected to the mounting support plate (201), the bottom of the fixed horizontal plate (204) is fixedly connected to the connecting recess (2041), the connecting recess (2041) is provided with a threaded hole (2042), a threaded screw (2043) is engaged in the threaded hole (2042), and a clamping plate (205) is provided at one end of the threaded screw (2043).

2. A 10kV live-mountable surge arrester according to claim 1, characterized in that: The reset cavity (2023) is provided with a first spring (2024).

3. A 10kV live-mountable surge arrester according to claim 1, characterized in that: The clamping plate (205) is fixedly connected to a connecting shaft cap (2051) at the middle of one end near the threaded screw (2043). A bearing (2052) is fixedly installed inside the connecting shaft cap (2051). The end of the threaded screw (2043) is fixedly connected to the inner shaft of the bearing (2052).

4. A 10kV surge arrester that can be installed live according to claim 1, characterized in that: Guide side strips (206) are fixedly connected to both sides of the clamping plate (205), and a limiting groove (2061) is opened on the fixed horizontal plate (204). The guide side strips (206) are slidably installed in the limiting groove (2061).

5. A 10kV live-mountable surge arrester according to claim 1, characterized in that: The mounting plate (201) is provided with a reinforcing component (3). The reinforcing component (3) includes a through groove (301), a guide slide rod (3011), and a fixed cross cylinder (3012). The mounting plate (201) is provided with a through groove (301). A guide slide rod (3011) is fixedly connected in the through groove (301). A fixed cross cylinder (3012) is provided between the guide slide rods (3011).

6. A 10kV live-mountable surge arrester according to claim 5, characterized in that: A sliding support hole (302) is provided in the middle of the fixed horizontal cylinder (3012), and an extrusion groove (3021) is provided inside the fixed horizontal cylinder (3012). A second spring (3022) is provided in the extrusion groove (3021).

7. A 10kV live-mountable surge arrester according to claim 5, characterized in that: The groove (301) is provided with a movable belt plate (303), and the movable belt plate (303) is provided with a guide sliding hole (3031) that fits with the guide slide rod (3011). A fixed support rod (3032) is fixedly connected to the side of the movable belt plate (303) near the fixed cross cylinder (3012). The fixed support rod (3032) passes through the sliding support hole (302) and is fixedly connected to the extrusion protrusion ring (3033) in the extrusion groove (3021). At the same time, a handle (3034) is fixedly connected to the movable belt plate (303).

8. A 10kV live-mountable surge arrester according to claim 7, characterized in that: The bottom of the movable belt plate (303) is fixedly connected to a connecting base block (304). A limiting slot (3041) is opened at the middle of one end of the connecting base block (304). The limiting slot (3041) is fitted and locked onto the outside of the mounting nut (2013).

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