10kV distribution network line pole with lightning protection function

Abstract

The utility model discloses a 10kV distribution network line pole with a lightning protection function, relates to the technical field of distribution network line poles, and aims to solve the problems that the installation structure of a lightning protection device in the prior art is relatively single, so that the number of matching modes during use is relatively small, and the use flexibility of the lightning protection device is influenced. A supporting column is arranged below the connecting column, a mounting column is arranged at the bottom of the connecting column, a mounting opening is formed in the top end of the supporting column, and the mounting column is in threaded connection with the mounting opening; the mounting rings are arranged on the front end face and the rear end face of the connecting column, fixing plates are arranged on the end faces of the two sides of each mounting ring, fixing holes are formed in the fixing plates, and bearing plates are arranged on the front end face and the rear end face of each mounting ring; the lightning protection assembly is arranged at the bottom of the bearing plate, a mounting plate is arranged on the lightning protection assembly, connecting holes are formed in the two sides of the upper surface of the mounting plate, and a lightning arrester is arranged on one side of the mounting plate.

Description

Technical Field

[0001] The utility model relates to the technical field of distribution network line poles, and specifically relates to a 10kV distribution network line pole with lightning protection function. Background Technique

[0002] The lightning overvoltage amplitude of 10kV overhead distribution lines is high and the discharge time is short. However, the insulation level of 10kV distribution lines is low. The lightning overvoltage can cause the insulator to flash over, and a power frequency follow current is formed on the lightning flashover channel to burn off the wire.

[0003] The patent document with the publication number of CN220570298U discloses a lightning protection device for 10KV distribution network lines that can be replaced while energized: including a support base, support frames are fixedly installed on both sides of the bottom of the support base; fixing bolts are embedded in the interior of the support frames, and a first threaded rod is embedded on one side of the interior of the support frames. The cross-sectional shape of the support frames is in the shape of the letter "L" and there are two in total. A nut is nested on the outside of the first threaded rod, a connecting column is fixedly installed at the top of the first threaded rod, a first discharge electrode is fixedly installed on the outside of the connecting column, and a lightning arrester body is fixedly installed at the top of the connecting column. By setting the lightning protection mechanism, one end of the grounding wire is connected to the ground, which effectively protects the line from lightning and timely introduces the lightning into the ground after being struck by lightning, protects the line and equipment, and avoids faults such as equipment damage, line tripping, and memory disconnection caused by overvoltage.

[0004] However, the installation structure of the lightning protection device in the above-mentioned prior art is relatively single, so there are fewer matching methods during use, which affects its use flexibility; therefore, it does not meet the existing requirements. For this reason, we propose a 10kV distribution network line pole with lightning protection function. Content of the Utility Model

[0005] The purpose of the utility model is to provide a 10kV distribution network line pole with lightning protection function to solve the problem that the installation structure of the lightning protection device in the prior art in the above-mentioned background technique is relatively single, so there are fewer matching methods during use, which affects its use flexibility.

[0006] To achieve the above purpose, the utility model provides the following technical solution: A 10kV distribution network line pole with lightning protection function, including a connecting column, a support column is arranged below the connecting column, an installation column is arranged at the bottom of the connecting column, an installation opening is arranged inside the top end of the support column, and the installation column is threadedly connected with the installation opening;

[0007] It further includes:

[0008] An installation ring is arranged on the front and rear end faces of the connecting column. Fixed plates are arranged on both side end faces of the installation ring. Fixed holes are arranged on the fixed plates. Supporting plates are arranged on the front and rear end faces of the installation ring.

[0009] A lightning protection component is arranged at the bottom of the supporting plate. An installation plate is arranged on the lightning protection component. Connecting holes are arranged on both sides of the upper surface of the installation plate. A lightning arrester is arranged on one side of the installation plate.

[0010] Preferably, insulator strings are arranged on the upper surface of the supporting plate, and eight insulator strings are arranged.

[0011] Preferably, connecting seats are arranged on the upper and lower end faces of the insulator string.

[0012] Preferably, a lightning rod is arranged on the top of the lightning arrester.

[0013] Preferably, umbrella skirts are arranged on the surface of the lightning arrester. An upper flange is arranged below the lightning rod. A lower flange is arranged at the bottom of the lightning arrester.

[0014] Preferably, an upper electrode is arranged at the top end inside the lightning arrester, and a lower electrode is arranged at the bottom end inside the lightning arrester.

[0015] Preferably, a valve plate is arranged between the upper electrode and the lower electrode, and an epoxy tube is arranged on the inner wall of the lightning arrester.

[0016] Compared with the prior art, the beneficial effects of the present utility model are as follows:

[0017] 1. By arranging an installation plate and connecting holes on the lightning protection component, the lightning arrester is installed and fixed through the lower flange and a connecting hole on one side, and the other connecting hole is connected and fixed with the lower surface of the supporting plate. The installation plate is in a stepped shape and can be installed and connected with the bottom of the insulator string according to requirements, facilitating its installation at any position. Then, the lightning arrester utilizes the characteristic of the change in the resistance of the metal oxide to adjust the grounding resistance to absorb sufficient overvoltage energy to protect electrical equipment. When the voltage of the system rises to a certain critical value, the lightning arrester starts to function, and the insulating material inside it fails, causing the internal current-carrying body to be ionized, thus forming a low-impedance path, enabling the leakage current to flow through the lightning arrester to the ground point to eliminate the overvoltage, solving the problem that the installation structure of the lightning protection device in the prior art is relatively single, so there are fewer matching methods during use, thus affecting its use flexibility.

[0018] 2. By arranging an installation port and an installation column, the connecting column and the support column are threadedly connected. At the same time, installation rings are arranged on the front and rear end faces of the connecting column, and the installation rings are connected and fixed by using the fixed holes on the fixed plates, facilitating the installation of the supporting plate and the insulator string, and thus making the whole convenient for disassembly and assembly. Brief Description of the Drawings

[0019] Figure 1 This is a schematic diagram of the overall structure of the distribution network line pole of the present utility model;

[0020] Figure 2 This is a schematic diagram of the partial structure of the distribution network line pole of the present utility model;

[0021] Figure 3 This is an enlarged schematic diagram of the lightning protection component structure of the present utility model;

[0022] Figure 4 This is an enlarged schematic diagram of the internal structure of the lightning arrester of the present utility model;

[0023] In the figure: 1, connecting column; 2, support column; 3, supporting plate; 4, insulator string; 5, connecting seat; 6, installation opening; 7, installation column; 8, installation ring; 9, fixing plate; 10, lightning protection component; 11, installation plate; 12, connecting hole; 13, lightning arrester; 14, upper flange; 15, lower flange; 16, umbrella skirt; 17, upper electrode; 18, lower electrode; 19, valve plate; 20, epoxy tube; 21, lightning rod. Detailed Description of the Preferred Embodiment

[0024] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments.

[0025] Please refer to Figures 1-4 , an embodiment provided by the present utility model: a 10 kV distribution network line pole with lightning protection function, including a connecting column 1, a support column 2 is arranged below the connecting column 1, an installation column 7 is arranged at the bottom of the connecting column 1, an installation opening 6 is arranged inside the top end of the support column 2, and the installation column 7 is threadedly connected to the installation opening 6;

[0026] It further includes:

[0027] An installation ring 8, which is arranged on the front and rear end faces of the connecting column 1, fixing plates 9 are arranged on both end faces of the installation ring 8, fixing holes are arranged on the fixing plates 9, and supporting plates 3 are arranged on the front and rear end faces of the installation ring 8;

[0028] Lightning protection component 10, which is arranged at the bottom of the supporting plate 3. An installation plate 11 is arranged on the lightning protection component 10. Connecting holes 12 are arranged on both sides of the upper surface of the installation plate 11. A lightning arrester 13 is arranged on one side of the installation plate 11. During use, due to the arrangement of the installation plate 11 and the connecting holes 12 on the lightning protection component 10, the lightning arrester 13 is installed and fixed through the lower flange 15 with the connecting hole 12 on one side, and the connecting hole 12 on the other side is connected and fixed with the lower surface of the supporting plate 3. The installation plate 11 is in a stepped shape and can be installed and connected with the bottom of the insulator string 4 according to requirements, facilitating its installation at any position. Then, the lightning arrester 13 utilizes the characteristic of the change of the metal oxide resistance to adjust the grounding resistance to absorb sufficient overvoltage energy to protect electrical equipment. When the voltage of the system rises to a certain critical value, the lightning arrester 13 starts to function, and the insulating material inside it fails, causing the internal current-carrying body to be ionized, thus forming a low-impedance path, enabling the leakage current to flow through the lightning arrester 13 to the ground point to eliminate the overvoltage, solving the problem that the installation structure of the lightning protection device in the prior art is relatively single, resulting in fewer matching methods during use, thereby affecting its use flexibility. And by setting the installation opening 6 and the installation post 7, the connecting post 1 and the support post 2 are threadedly connected. At the same time, installation rings 8 are arranged on the front and rear end faces of the connecting post 1, and the installation rings 8 are connected and fixed by using the fixing holes on the fixing plate 9, facilitating the installation and setting of the supporting plate 3 and the insulator string 4, thereby making the whole convenient for disassembly and assembly.

[0029] Please refer to Figures 1-4 , the upper surface of the supporting plate 3 is provided with an insulator string 4, and there are eight insulator strings 4.

[0030] Please refer to Figures 1-4 , connecting seats 5 are arranged on the upper and lower end faces of the insulator string 4.

[0031] Please refer to Figures 1-4 , a lightning rod 21 is arranged on the top of the lightning arrester 13.

[0032] Please refer to Figures 1-4 , umbrella skirts 16 are arranged on the surface of the lightning arrester 13, an upper flange 14 is arranged below the lightning rod 21, and a lower flange 15 is arranged at the bottom of the lightning arrester 13.

[0033] Please refer to Figures 1-4 , an upper electrode 17 is arranged at the top end inside the lightning arrester 13, a lower electrode 18 is arranged at the bottom end inside the lightning arrester 13. The lightning arrester 13 is connected between the power grid conductor and the ground wire and is connected in parallel with the protected equipment. During normal operation, the lightning arrester 13 is regarded as an open circuit to the ground. Once a high voltage appears and endangers the insulation of the protected equipment, the lightning arrester 13 immediately acts to direct the high-voltage impulse current to the ground, thereby limiting the voltage amplitude and protecting the insulation of the electrical equipment. After the overvoltage disappears, the lightning arrester 13 quickly returns to its original state, enabling the system to supply power normally.

[0034] Please refer to Figures 1-4 , a valve plate 19 is arranged between the upper electrode 17 and the lower electrode 18, and an epoxy tube 20 is arranged on the inner wall of the lightning arrester 13.

[0035] Working principle: During use, due to the installation plate 11 and the connection holes 12 being provided on the lightning protection component 10, the lightning arrester 13 is installed and fixed through the lower flange 15 to the connection hole 12 on one side, and the connection hole 12 on the other side is connected and fixed to the lower surface of the supporting plate 3. The installation plate 11 is in a stepped shape and can be installed and connected to the bottom of the insulator string 4 according to requirements, facilitating its installation at any position. Then, the lightning arrester 13 utilizes the characteristic of the change in the metal oxide resistance to adjust the grounding resistance to absorb sufficient overvoltage energy to protect electrical equipment. When the voltage of the system rises to a certain critical value, the lightning arrester 13 starts to function, and the insulating material inside it fails, causing the internal current-carrying body to ionize, thus forming a low-impedance path, enabling the leakage current to flow through the lightning arrester 13 to the ground point to eliminate the overvoltage, solving the problem that the installation structure of the lightning protection device in the prior art is relatively single, resulting in fewer matching methods during use, thereby affecting its use flexibility. Moreover, by providing the installation opening 6 and the installation post 7, the connecting post 1 and the supporting post 2 are threadedly connected. At the same time, installation rings 8 are arranged on the front and rear end faces of the connecting post 1, and the installation rings 8 are connected and fixed by the fixing holes on the fixing plate 9, facilitating the installation of the supporting plate 3 and the insulator string 4, thereby making the overall disassembly and assembly convenient.

[0036] For those skilled in the art, it is obvious that the present utility model is not limited to the details of the above exemplary embodiments, and without departing from the spirit or basic characteristics of the present utility model, the present utility model can be implemented in other specific forms. Therefore, from any point of view, the embodiments should be regarded as exemplary and non-limiting. The scope of the present utility model is defined by the appended claims rather than the above description. Therefore, all changes falling within the meaning and scope of the equivalent elements of the claims are intended to be encompassed within the present utility model. Any reference signs in the claims should not be regarded as limiting the claimed rights.

Claims

1. A 10 kV distribution network line pole with lightning protection function, comprising a connecting column (1), a supporting column (2) is arranged below the connecting column (1), a mounting column (7) is arranged at the bottom of the connecting column (1), a mounting opening (6) is arranged inside the top end of the supporting column (2), and the mounting column (7) is threadedly connected to the mounting opening (6); Features: Also includes: A mounting ring (8) is arranged on the front and rear end surfaces of the connecting column (1), both side end surfaces of the mounting ring (8) are provided with fixing plates (9), the fixing plates (9) are provided with fixing holes, and the front and rear end surfaces of the mounting ring (8) are provided with supporting plates (3); A lightning protection component (10) is arranged at the bottom of the supporting plate (3); a mounting plate (11) is arranged on the lightning protection component (10); connection holes (12) are arranged on both sides of the upper surface of the mounting plate (11); and a lightning arrester (13) is arranged on one side of the mounting plate (11).

2. A 10kV distribution network line pole with lightning protection function according to claim 1, characterized in that: An insulator string (4) is arranged on the upper surface of the supporting plate (3), and eight insulator strings (4) are arranged.

3. A 10kV distribution network line pole with lightning protection function according to claim 2, characterized in that: The upper and lower end surfaces of the insulator string (4) are both provided with connection seats (5).

4. A 10kV distribution network line pole with lightning protection function according to claim 1, characterized in that: A lightning rod (21) is arranged on the top of the lightning arrester (13).

5. A 10kV distribution network line pole with lightning protection function according to claim 4, characterized in that: The surface of the lightning arrester (13) is provided with an umbrella skirt (16), an upper flange (14) is provided below the lightning rod (21), and a lower flange (15) is provided at the bottom of the lightning arrester (13).

6. The 10kV distribution network line pole with lightning protection function according to claim 1 is characterized in that: An upper electrode (17) is arranged at the top end of the lightning arrester (13), and a lower electrode (18) is arranged at the bottom end of the lightning arrester (13).

7. A 10kV distribution network line pole with lightning protection function according to claim 6, characterized in that: A valve plate (19) is arranged between the upper electrode (17) and the lower electrode (18), and an epoxy tube (20) is arranged on the inner wall of the arrester (13).

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