A line post lightning protection device

Abstract

The present invention relates to a line post lightning protection device, belonging to the technical field of insulating lightning protection devices, and comprising an insulating shaft and a plurality of insulating components. The insulating components include resistor chips, and a plurality of resistor chips are coaxially arranged on the insulating shaft at equal intervals along the axial direction of the insulating shaft. The resistor chips are detachably arranged on the insulating shaft; by providing detachable resistor chips, when the resistor chips are struck by lightning multiple times and irreversible damage occurs to themselves, thereby affecting the performance of the resistor chips, the resistor chips can be removed and then new resistor chips can be replaced, and thus it can be used continuously.

Description

Technical Field

[0001] The present invention belongs to the technical field of insulating lightning protection devices, and particularly relates to a line post lightning protection device. Background Art

[0002] Since China is a large populous country with a large number of people living, and with the rapid economic development in recent years, the industry has also developed, especially the development of the power industry. With a large population in China and the extremely rapid development of the industrial momentum, the power consumption has increased sharply. Therefore, China has continuously invested a large amount of funds in building power plants and erecting lines. During the process of erecting lines, lightning arresters are required to protect the lines.

[0003] For example, the utility model patent with the patent authorization announcement number: CN207116136U. This patent discloses a lightning protection line post lightning arrester, which includes an insulating cover, a lightning arrester, and a telescopic soft sleeve. The insulating cover is connected to the lightning arrester below, the lightning arrester is connected to the telescopic soft sleeve below, several umbrella sleeves are provided on the lightning arrester, a piercing arc is provided in the middle inside the insulating cover, both ends of the piercing arc are connected with bolts, wire gland covers are provided on the bolts, and the two wire gland covers are connected through the piercing arc. Several gap high-voltage resistors are provided inside the lightning arrester, and zinc oxide resistor chips are provided below the gap high-voltage resistors. A bottom connecting rod is provided inside the telescopic soft sleeve.

[0004] Based on the retrieval of the patent authorization announcement number and combined with its deficiencies, it is found that:

[0005] A number of zinc oxide resistor chips in the existing lightning arrester are integrally formed and installed in the lightning arrester in a non-detachable manner. When the lightning arrester is applied in areas with many thunderstorms, since the zinc oxide resistor chips are often struck by lightning, one of the zinc oxide resistor chips will be irreversibly damaged, thus affecting the performance of the zinc oxide resistor chip. When replacing, all the zinc oxide resistor chips need to be replaced to be reused. Such a setting increases the replacement cost. Summary of the Invention

[0006] To solve the problem that a number of zinc oxide resistor chips in the existing lightning arrester are integrally formed and installed in the lightning arrester in a non-detachable manner. When the lightning arrester is applied in areas with many thunderstorms, since the zinc oxide resistor chips are often struck by lightning, one of the zinc oxide resistor chips will be irreversibly damaged, thus affecting the performance of the zinc oxide resistor chip. When replacing, all the zinc oxide resistor chips need to be replaced to be reused. Such a setting increases the replacement cost, the present invention provides a line post lightning protection device.

[0007] The object of the present invention can be achieved by the following technical solutions:

[0008] A line post lightning protection device includes an insulating shaft and a number of insulating components. The insulating components include resistor plates. A number of resistor plates are coaxially arranged on the insulating shaft at equal intervals along the axis direction of the insulating shaft, and the resistor plates are detachably arranged on the insulating shaft.

[0009] As a preferred technical solution of the present invention, it further includes a locking pin and two locking nuts. An installation slot hole is opened at the bottom of the insulating shaft, and the installation slot hole is used to cooperate with the top of the electric pole for connection. A locking slot hole is formed jointly by the insulating shaft and the electric pole, and the locking slot hole penetrates both ends of the installation slot hole. The locking pin is coaxially installed in the locking slot hole, and both ends of the locking pin extend out of the locking slot hole. The two locking nuts are respectively meshed and connected with the two ends of the locking pin extending out of the locking slot hole.

[0010] As a preferred technical solution of the present invention, the insulating component further includes a limiting piece, a limiting rope, a limiting spring and a limiting block. The inside of the insulating shaft is hollow, and the inside of the insulating shaft is communicated with the installation slot hole. The limiting block and the limiting piece are slidably arranged in the insulating shaft. The sliding directions of the limiting block and the limiting piece are both parallel to the axis direction of the insulating shaft. The two ends of the limiting rope are respectively connected with the limiting block and the limiting piece. The limiting spring is arranged in the insulating shaft, and the two ends of the limiting spring are respectively connected with the insulating shaft and the limiting piece. The limiting piece can lock or release its mating relationship extending into the installation slot hole.

[0011] As a preferred technical solution of the present invention, the insulating shaft is provided with a number of communication slots and a number of locking holes. The number of communication slots corresponds to and matches the number of limiting blocks one by one. Any one of the communication slots is arranged at the sliding height of the projection of the corresponding limiting block on the insulating shaft; the number of locking holes corresponds to and matches the number of communication slots one by one. Any one of the locking holes is located at the top of the corresponding communication slot, and the locking holes are arranged inside the insulating shaft;

[0012] The limiting block is provided with a mating hole, and the resistor plate is provided with a connection hole. The insulating component further includes a locking screw. The resistor plate is in abutting contact with the limiting block, driving the limiting block to move along the axis direction of the insulating shaft. The connection hole, the mating hole and the locking hole can jointly form a mating slot hole. The locking screw can lock or release its coaxial meshing connection relationship with the mating slot hole.

[0013] As a preferred technical solution of the present invention, the insulating component further includes a sealing block. The sealing block is hermetically arranged at the communication slot, and the sealing block and the corresponding resistor plate can jointly lock or release their sealing cooperation relationship with the corresponding communication slot.

[0014] As a preferred technical solution of the present invention, the resistor chip includes a resistor body, a plurality of sliding blocks and sliding springs. The resistor body is coaxially provided with a connecting slot hole. The resistor body is coaxially and cooperatively connected with the insulating shaft through the connecting slot hole. The resistor body is provided with a plurality of sliding slot holes. The plurality of sliding slot holes are evenly arranged on the resistor body at equal angles around the central axis of the connecting slot hole. The plurality of connecting slot holes and the plurality of sliding springs respectively correspond to and match the plurality of sliding blocks one by one. Any one of the sliding blocks is slidably arranged in the corresponding connecting slot hole. Any one of the sliding springs is arranged in the corresponding connecting slot hole. The two ends of the sliding spring are respectively connected to the sliding block and the resistor body. The resistor body is provided with a connecting hole. The inner side wall of the resistor body abuts and fits against the limiting block.

[0015] As a preferred technical solution of the present invention, the insulating component further includes an umbrella sleeve, and the umbrella sleeve is detachably arranged on the surface of the resistor chip;

[0016] The umbrella sleeve includes an outer ring sleeve, an inner ring sleeve and a plurality of connecting springs. The outer ring sleeve is coaxially sleeved on the insulating shaft. The outer ring sleeve wraps the resistor chip. The inner ring sleeve includes a plurality of connecting soft sleeves and a plurality of abutting sleeves. The plurality of abutting sleeves are evenly and fittingly arranged on the surface of the resistor chip at equal angles around the central axis of the connecting slot hole. There is a connecting space between two adjacent abutting sleeves. The plurality of connecting spaces respectively correspond to and match the plurality of connecting soft sleeves one by one. Any one of the connecting soft sleeves is arranged in the corresponding connecting space. The two ends of the connecting soft sleeve are respectively hinged to two adjacent abutting sleeves. The inner ring sleeve formed by the plurality of connecting soft sleeves and the plurality of abutting sleeves is fittingly arranged on the surface of the resistor chip; the plurality of abutting sleeves respectively correspond to and match the plurality of sliding blocks one by one. Any one of the abutting sleeves is fittingly arranged on the corresponding sliding block. The plurality of connecting springs respectively correspond to and match the plurality of abutting sleeves one by one. The connecting springs are arranged between the outer ring sleeve and the inner ring sleeve. The two ends of any one of the connecting springs are respectively connected to the outer ring sleeve and the abutting sleeve. The sliding block can lock or release its abutting and fitting relationship with the insulating shaft.

[0017] As a preferred technical solution of the present invention, when the frictional force generated by the plurality of sliding blocks on the insulating shaft together is greater than the force of the limiting spring on the limiting piece when the limiting piece abuts and cooperates with the locking pin; and the frictional force generated by the plurality of sliding blocks on the insulating shaft together is less than the force of the limiting spring on the limiting piece when the mating hole and the locking hole cooperate with each other.

[0018] As a preferred technical solution of the present invention, the insulating component further includes a replacement block, which is arranged inside the insulating shaft. The replacement block is coaxially provided with a locking hole. The material of the replacement block is the same as that of the resistance sheet, and the thickness of the replacement block is equal to the thickness of the thinnest position of the resistance sheet.

[0019] As a preferred technical solution of the present invention, the insulating component further includes a position sensor, which is arranged inside the insulating shaft. The position sensor is used to detect the distance between it and the limiting sheet, so as to judge the usage conditions of the resistance sheet and the umbrella sleeve; it also includes a control system, and the control system is communicatively connected with the position sensor.

[0020] The beneficial effects of the present invention are:

[0021] By providing a detachable resistance sheet, when the resistance sheet is struck by lightning many times and undergoes irreversible damage, which will affect the performance of the resistance sheet, after disassembling the resistance sheet and then replacing it with a new one, it can be used continuously; in the existing lightning protection devices, since several zinc oxide resistance sheets are integrally formed and installed in the lightning arrester in a non-detachable manner, when the lightning arrester is applied in areas with frequent thunderstorms, because the zinc oxide resistance sheets are often struck by lightning, which will cause irreversible damage to one of the zinc oxide resistance sheets and thus affect the performance of the zinc oxide resistance sheet. When replacing, all the zinc oxide resistance sheets need to be replaced to be reused. This solution replaces the replacement method of replacing the entire zinc oxide resistance sheet in the existing lightning protection device with the replacement method of replacing a single resistance sheet, reducing the replacement cost and solving the problem that in the existing lightning arrester, several zinc oxide resistance sheets are integrally formed and installed in the lightning arrester in a non-detachable manner. When the lightning arrester is applied in areas with frequent thunderstorms, because the zinc oxide resistance sheets are often struck by lightning, which will cause irreversible damage to one of the zinc oxide resistance sheets and thus affect the performance of the zinc oxide resistance sheet. When replacing, all the zinc oxide resistance sheets need to be replaced to be reused, and such a setting increases the replacement cost. Description of the Drawings

[0022] For the convenience of those skilled in the art to understand, the present invention will be further described below with reference to the accompanying drawings.

[0023] Figure 1 It is an overall view of a line post lightning protection device of the present invention;

[0024] Figure 2 It is an internal cross-sectional view of the resistance sheet of a line post lightning protection device of the present invention;

[0025] Figure 3Internal cross-sectional view of the insulating shaft of a line post lightning protection device according to the present invention.

[0026] Main symbol descriptions

[0027] In the figure: 1, insulating shaft; 2, insulating assembly; 201, resistor plate; 2011, resistor body; 2012, sliding block; 2013, sliding spring; 202, limiting piece; 203, limiting rope; 204, limiting spring; 205, limiting block; 206, replacement block; 207, position sensor; 3, locking pin; 4, locking nut; 5, umbrella sleeve; 501, outer ring sleeve; 502, inner ring sleeve; 5021, connecting soft sleeve; 5022, abutting sleeve; 503, connecting spring. Specific embodiments

[0028] To further elaborate on the technical means and effects adopted by the present invention to achieve the predetermined invention purpose, the following, in conjunction with the accompanying drawings and preferred embodiments, details the specific embodiments, structures, features and their effects according to the present invention as follows.

[0029] Please refer to Figures 1 - 3 , this embodiment provides a line post lightning protection device, including an insulating shaft 1 and a plurality of insulating assemblies 2. The insulating assembly 2 includes resistor plates 201. A plurality of resistor plates 201 are coaxially arranged on the insulating shaft 1 at equal intervals along the axis direction of the insulating shaft 1. The resistor plates 201 are detachably arranged on the insulating shaft 1; by providing detachable resistor plates 201, when the resistor plates 201 are struck by lightning multiple times and suffer irreversible damage to themselves, thereby affecting the performance of the resistor plates 201, after disassembling the resistor plates 201 and then replacing them with new resistor plates 201, it can be used continuously; while in the existing lightning protection device, since a plurality of zinc oxide resistor plates are integrally formed and installed in the lightning arrester in a non-detachable manner, when the lightning arrester is applied in an area with many thunderstorm days, because the zinc oxide resistor plates are often struck by lightning, resulting in irreversible damage to one of the zinc oxide resistor plates, thereby affecting the performance of the zinc oxide resistor plate. When replacing, all the zinc oxide resistor plates need to be replaced to be reused. The present solution replaces the replacement method of replacing the entire zinc oxide resistor plate in the existing lightning protection device with the replacement method of replacing a single resistor plate 201, reducing the replacement cost and solving the problem that a plurality of zinc oxide resistor plates in the existing lightning arrester are integrally formed and installed in the lightning arrester in a non-detachable manner. When the lightning arrester is applied in an area with many thunderstorm days, because the zinc oxide resistor plates are often struck by lightning, resulting in irreversible damage to one of the zinc oxide resistor plates, thereby affecting the performance of the zinc oxide resistor plate. When replacing, all the zinc oxide resistor plates need to be replaced to be reused, and such a setting increases the replacement cost.

[0030] Specifically, it further includes a locking pin 3 and two locking nuts 4. An installation slot hole is formed at the bottom of the insulating shaft 1, and the installation slot hole is used to cooperate with the top of the utility pole for connection. The insulating shaft 1 and the utility pole jointly form a locking slot hole, and the locking slot hole penetrates through both ends of the installation slot hole. The locking pin 3 is coaxially installed in the locking slot hole, and both ends of the locking pin 3 extend out of the locking slot hole. The two locking nuts 4 are respectively meshed and connected to the two ends of the locking pin 3 that extend out of the locking slot hole. By providing the locking pin 3 and the locking nuts 4, when the locking pin 3 is coaxially arranged on the locking slot hole and the two locking nuts 4 are respectively coaxially installed at the two ends of the locking pin 3 that extend out of the locking slot hole, the insulating shaft 1 is installed on the top of the utility pole.

[0031] Furthermore, the insulation assembly 2 of this solution further includes a limiting piece 202, a limiting rope 203, a limiting spring 204 and a limiting block 205. The inside of the insulating shaft 1 is hollow, and the inside of the insulating shaft 1 communicates with the installation slot hole. The limiting block 205 and the limiting piece 202 are slidably arranged in the insulating shaft 1. The sliding directions of the limiting block 205 and the limiting piece 202 are both parallel to the axis direction of the insulating shaft 1. Both ends of the limiting rope 203 are respectively connected to the limiting block 205 and the limiting piece 202. The limiting spring 204 is arranged in the insulating shaft 1, and both ends of the limiting spring 204 are respectively connected to the insulating shaft 1 and the limiting piece 202. The limiting piece 202 can lock or release its mating relationship with the installation slot hole. By providing the limiting piece 202, when the limiting piece 202 extends into the installation slot hole, due to the limiting piece 202, the cooperation between the installation slot hole of the insulating shaft 1 and the top of the utility pole is interfered. Only when the limiting piece 202 is completely retracted into the installation slot hole, the cooperation between the installation slot hole of the insulating shaft 1 and the top of the utility pole will not be interfered, and the smooth connection between the insulating shaft 1 and the utility pole can be ensured.

[0032] According to the above embodiments, in order to ensure that after several resistor plates 201 are installed on the insulating shaft 1 by the staff on the ground in advance, and then the insulating shaft 1 is climbed onto the utility pole and installed on the utility pole; in this solution, the insulating shaft 1 is provided with several communication grooves and several locking holes. The several communication grooves are in one-to-one correspondence and match with several limiting blocks 205. Any communication groove is arranged at the sliding height of the projection of the corresponding limiting block 205 on the surface of the insulating shaft 1; the several locking holes are in one-to-one correspondence and match with the several communication grooves. Any locking hole is located at the top of the corresponding communication groove. The locking hole is arranged inside the insulating shaft 1, while the communication groove is arranged on the surface of the insulating shaft 1; in addition, the limiting block 205 is provided with a mating hole, the resistor plate 201 is provided with a connection hole, and the insulating assembly 2 further includes a locking screw. The resistor plate 201 abuts and fits against the limiting block 205, driving the limiting block 205 to move along the axial direction of the insulating shaft 1. The connection hole, the mating hole, and the locking hole can jointly form a mating slot hole. The locking screw can lock or release its coaxial meshing connection relationship with the mating slot hole; by providing the locking screw, when the resistor plate 201 drives the corresponding limiting block 205 to slide along the axial direction of the insulating shaft 1 and slides to a specified position, the connection hole of the resistor plate 201, the mating hole of the limiting block 205, and the locking hole of the insulating shaft 1 jointly form a mating slot hole. The locking screw realizes the installation of the resistor plate 201 by coaxial meshing connection with the mating slot hole; at the same time, the corresponding limiting piece 202 after the installation of the resistor plate 201 will shrink inside the insulating shaft 1. After all the resistor plates 201 are installed, all the limiting pieces 202 located in the installation slot holes will shrink inside the insulating shaft 1; since then, the limiting piece 202 releases its mating relationship of protruding into the installation slot hole, and the construction personnel can smoothly install the insulating shaft 1 on the top of the utility pole.

[0033] It should be noted that in order to ensure the sealing performance inside the insulating shaft 1, the insulating assembly 2 of this solution further includes a sealing block. The sealing block is hermetically arranged at the communication groove, and the sealing block and the corresponding resistor plate 201 can jointly lock or release the sealing fit relationship between the two and the corresponding communication groove.

[0034] Specifically, the specific structure of the resistor chip 201 in this solution is as follows: The resistor chip 201 includes a resistor body 2011, several sliding blocks 2012, and sliding springs 2013. The resistor body 2011 is coaxially provided with a connecting slot hole. The resistor body 2011 is coaxially and cooperatively connected to the insulating shaft 1 through the connecting slot hole. The resistor body 2011 is provided with several sliding slot holes. The several sliding slot holes are evenly arranged on the resistor body 2011 at equal angles around the central axis of the connecting slot hole. The several sliding blocks 2012 and the several sliding springs 2013 are respectively in one-to-one correspondence and match with the several connecting slot holes. Any one of the sliding blocks 2012 is slidably arranged in the corresponding connecting slot hole. Any one of the sliding springs 2013 is arranged in the corresponding connecting slot hole. The two ends of the sliding spring 2013 are respectively connected to the sliding block 2012 and the resistor body 2011. The resistor body 2011 is provided with a connecting hole. The inner side wall of the resistor body 2011 abuts and fits against the limiting block 205. It is worth noting that the sealing block and the inner side wall of the resistor body 2011 can cooperate to jointly seal the corresponding communication slot. However, the sealing block and the inner side wall of the resistor body 2011 are in different vertical planes, so they will not interfere with the sliding of the resistor body 2011 along the axis direction of the communication slot. It is also worth noting that by sliding along the corresponding connecting slot hole, the sliding block 2012 can achieve the relationship of fitting with the surface of the insulating shaft 1.

[0035] In addition, it is also worth noting that this solution is applied to areas with frequent thunderstorms. For the improvement of the resistor chip 201, it can only cope with lightning strikes during thunderstorm weather, and it also has to cope with heavy rain during thunderstorm weather. In order to ensure that the lightning protection device of this solution can achieve the waterproof function, the insulating component 2 of this solution further includes an umbrella sleeve 5. The umbrella sleeve 5 is detachably arranged on the surface of the resistor chip 201. By providing the umbrella sleeve 5, it can prevent rainwater from pouring into the surface of the resistor chip 201, thereby affecting the normal operation of the resistor chip 201.

[0036] Furthermore, during thunderstorm weather, strong winds often occur. Therefore, when there is thunderstorm weather, the occurrence of strong winds will damage the umbrella cover 5, which will further lead to the failure of the waterproof function of the umbrella cover 5. Based on this, to solve this problem, the umbrella cover 5 of this solution includes an outer ring sleeve 501, an inner ring sleeve 502, and a number of connecting springs 503. The outer ring sleeve 501 is coaxially sleeved on the insulating shaft 1, and the outer ring sleeve 501 wraps the resistance sheet 201. The inner ring sleeve 502 includes a number of connecting soft sleeves 5021 and a number of abutting sleeves 5022. The number of abutting sleeves 5022 are evenly and angularly arranged around the central axis of the connecting slot hole and are attached to the surface of the resistance sheet 201. There is a connecting space between two adjacent abutting sleeves 5022. The number of connecting spaces corresponds to the number of connecting soft sleeves 5021 one by one. Any one of the connecting soft sleeves 5021 is arranged in the corresponding connecting space. The two ends of the connecting soft sleeve 5021 are respectively hinged to two adjacent abutting sleeves 5022. The inner ring sleeve 502 formed by the number of connecting soft sleeves 5021 and the number of abutting sleeves 5022 is attached to the surface of the resistance sheet 201. The number of abutting sleeves 5022 corresponds to the number of sliding blocks 2012 one by one. Any one of the abutting sleeves 5022 is attached to the corresponding sliding block 2012. The number of connecting springs 503 corresponds to the number of abutting sleeves 5022 one by one. The connecting springs 503 are arranged between the outer ring sleeve 501 and the inner ring sleeve 502. The two ends of any one of the connecting springs 503 are respectively connected to the outer ring sleeve 501 and the abutting sleeve 5022. The sliding block 2012 can lock or release its abutting and attaching relationship with the insulating shaft 1. It is also worth noting that the outer ring sleeve 501 of this solution is made of a hard material, while the inner ring sleeve 502 is made of a flexible material. The function of the inner ring sleeve 502 is to make the resistance sheet 201 have a waterproof effect by attaching to the surface of the resistance sheet 201. The function of the outer ring sleeve 501 is to prevent impurities carried by strong winds from scratching the surface of the inner ring sleeve 502 when strong winds occur. It is worth noting that the area between the inner ring sleeve 502 and the outer ring sleeve 501 is also a sealed area. In addition, it is also worth noting that in order to ensure that the outer ring sleeve 501 is not damaged during use, this solution also provides a wind sensor. The wind sensor is arranged in the sealed area between the inner ring sleeve 502 and the outer ring sleeve 501 and is used to detect whether the outer ring sleeve 501 is damaged. The detection principle is as follows: If the value displayed by the wind sensor is zero, it means that the wind sensor does not detect the wind in the sealed area. If the wind sensor displays a value, it means that the outer ring sleeve 501 is damaged and the outside wind pours into the sealed area.

[0037] Further, in order to determine the performance state of the resistor chip 201, the insulation assembly 2 of this solution further includes a replacement block 206. The replacement block 206 is arranged inside the insulating shaft 1. The replacement block 206 is coaxially provided with a locking hole. The material of the replacement block 206 is the same as that of the resistor chip 201, and the thickness of the replacement block 206 is equal to the thickness of the resistor chip 201 at the thinnest position. With such a setting, when the resistor chip 201 is struck by lightning, the resistor chip 201 will transfer the lightning strike to the replacement block 206. And since the thickness of the replacement block 206 is equal to the thickness of the resistor chip 201 at the thinnest position, when the resistor chip 201 has experienced a sufficient number of lightning strikes, the replacement block 206 will experience the same number of lightning strikes. And due to the structural design of the replacement block 206, the structure of the replacement block 206 will be damaged prior to that of the resistor chip 201, thereby releasing the connection relationship between the resistor chip 201 and the replacement block 206 through the cooperation of the locking screws. At this time, the resistor chip 201 no longer has the acting force cooperating with the replacement block 206, but at this time the resistor chip 201 still cooperates with the limiting block 205. Therefore, the resistor chip 201 will move towards the bottom due to the acting force of the limiting spring 204. Based on this, the insulation assembly 2 of this solution further includes a position sensor 207. The position sensor 207 is arranged inside the insulating shaft 1. The position sensor 207 is used to detect the distance between it and the limiting piece 202, so as to judge the usage condition of the resistor chip 201. It also includes a control system. The control system is communicatively connected to the position sensor 207. Thus, the position sensor 207 transmits data to the control system, enabling the staff to remotely judge the usage conditions of the umbrella sleeve 5 and the resistor chip 201.

[0038] Specifically, the detection principle of the position sensor 207 in this solution is described in detail here: Assume that when the resistance sheet 201 is in normal use, the distance between the position sensor 207 and the limiting sheet 202 is N0; then, when the position sensor 207 detects that the actual time distance N between it and the limiting sheet 202 is N = N0, it indicates that the resistance sheet 201 is in normal use; and when the position sensor 207 detects that the actual time distance N between it and the limiting sheet 202 is N < N0, it indicates that the resistance sheet 201 is damaged and needs to be replaced in time. In addition, due to the existence of the sliding block 2012 in this solution, the frictional force generated by several sliding blocks 2012 on the insulating shaft 1 together is greater than the force exerted by the limiting spring 204 on the limiting sheet 202 when the limiting sheet 202 abuts and cooperates with the locking pin 3; and the frictional force generated by several sliding blocks 2012 on the insulating shaft 1 together is less than the force exerted by the limiting spring 204 on the limiting sheet 202 when the mating hole and the locking hole cooperate with each other; since the number of sliding blocks 2012 is set to be multiple, therefore, it can be judged according to the distance between the position sensor 207 and the limiting sheet 202 after the resistance sheet 201 is damaged. In fact, after the outer ring sleeve 501 is replaced, how many sliding springs 2013 need to be reinstalled. It is important to note here that there is another purpose for setting the sliding block 2012 in this solution, that is, since the applicable occasion of this solution is thunderstorm weather, which is often accompanied by strong winds. In order to prevent the damaged resistance sheet 201 from sliding up and down when the strong wind blows, thereby wearing the surface of the insulating shaft 1, the sliding block 2012 is specially set in this solution. At this time, it is ensured that even when the resistance sheet 201 is damaged, the resistance sheet 201 will not shake violently with the strong wind, avoiding wearing the surface of the insulating shaft 1 and achieving the purpose of increasing the working life of the insulating shaft 1.

[0039] The above are only the preferred embodiments of the present invention, and do not impose any form of limitation on the present invention. Although the present invention has been disclosed above with preferred embodiments, it is not intended to limit the present invention. Any person skilled in the art can make some changes or modifications to the equivalent embodiments by using the above-disclosed technical content within the scope of the technical solution of the present invention. However, as long as it does not depart from the content of the technical solution of the present invention, any brief modifications, equivalent changes and modifications made to the above embodiments based on the technical essence of the present invention still fall within the scope of the technical solution of the present invention.

Claims

1. A line post lightning protection device, characterized in that: It includes an insulating shaft and a number of insulating components. The insulating components include resistance chips. A number of resistance chips are coaxially arranged on the insulating shaft at equal intervals along the axis direction of the insulating shaft, and the resistance chips are detachably arranged on the insulating shaft; The insulating shaft is provided with a number of communication grooves and a number of locking holes. The number of communication grooves corresponds to and matches the number of limiting blocks one by one. Any one of the communication grooves is arranged on the sliding height of the projection of the corresponding limiting block on the insulating shaft; The number of locking holes corresponds to and matches the number of communication grooves one by one. Any one of the locking holes is located at the top of the corresponding communication groove, and the locking holes are arranged inside the insulating shaft; The limiting block is provided with a mating hole, and the resistance chip is provided with a connection hole. The insulating component further includes a locking screw. The resistance chip is in abutting contact with the limiting block, and drives the limiting block to move along the axis direction of the insulating shaft. The connection hole, the mating hole and the locking hole can jointly form a mating slot hole, and the locking screw can lock or release its coaxial meshing connection relationship with the mating slot hole; The resistance chip includes a resistance body, a number of sliding blocks and sliding springs. The resistance body is coaxially provided with a connection slot hole. The resistance body is coaxially fitted and connected with the insulating shaft through the connection slot hole. The resistance body is provided with a number of sliding slot holes. The number of sliding slot holes is evenly arranged around the central axis of the connection slot hole on the resistance body at equal angles. The number of sliding blocks and the number of sliding springs correspond to and match the number of connection slot holes one by one. Any one of the sliding blocks is slidably arranged in the corresponding connection slot hole, and any one of the sliding springs is arranged in the corresponding connection slot hole. The two ends of the sliding spring are respectively connected with the sliding block and the resistance body. The resistance body is provided with a connection hole, and the inner side wall of the resistance body is in abutting contact with the limiting block.

2. The columnar lightning protection device for a circuit according to claim 1, characterized in that: It further includes a locking pin and two locking nuts. The bottom of the insulating shaft is provided with a mounting slot hole for mating connection with the top of the electric pole. The insulating shaft and the electric pole jointly form a locking slot hole. The locking slot hole penetrates through both ends of the mounting slot hole. The locking pin is coaxially installed in the locking slot hole, and both ends of the locking pin extend out of the locking slot hole. The two locking nuts are respectively meshed and connected with the two ends of the locking pin extending out of the locking slot hole.

3. The line post lightning protection device according to claim 2, characterized in that: The insulating component further includes a limiting piece, a limiting rope, a limiting spring and a limiting block. The inside of the insulating shaft is hollow, and the inside of the insulating shaft is communicated with the mounting slot hole. The limiting block and the limiting piece are slidably arranged inside the insulating shaft. The sliding directions of the limiting block and the limiting piece are both parallel to the axis direction of the insulating shaft. The two ends of the limiting rope are respectively connected with the limiting block and the limiting piece. The limiting spring is arranged inside the insulating shaft, and the two ends of the limiting spring are respectively connected with the insulating shaft and the limiting piece. The limiting piece can lock or release its mating relationship extending into the mounting slot hole.

4. A line column lightning protection device according to claim 1, characterized in that: The insulating component further includes a sealing block, which is sealingly arranged at the communication groove, and the sealing block and the corresponding resistor chip can jointly lock or release the sealing fit relationship between the two and the corresponding communication groove.

5. The line column lightning protection device according to claim 3, characterized in that: The insulating component further includes an umbrella sleeve, which is detachably arranged on the surface of the resistor chip; The umbrella sleeve includes an outer ring sleeve, an inner ring sleeve and a plurality of connecting springs. The outer ring sleeve is coaxially sleeved on the insulating shaft, the outer ring sleeve wraps the resistor chip, the inner ring sleeve includes a plurality of connecting soft sleeves and a plurality of abutting sleeves. The plurality of abutting sleeves are evenly arranged on the surface of the resistor chip at equal angles around the central axis of the connecting groove hole. There is a connecting space between two adjacent abutting sleeves. The plurality of connecting spaces are respectively and correspondingly matched with the plurality of connecting soft sleeves. Any one of the connecting soft sleeves is arranged in the corresponding connecting space, and both ends of the connecting soft sleeve are respectively hinged to two adjacent abutting sleeves. The inner ring sleeve formed by the plurality of connecting soft sleeves and the plurality of abutting sleeves is attached to the surface of the resistor chip; the plurality of abutting sleeves are respectively and correspondingly matched with the plurality of sliding blocks. Any one of the abutting sleeves is attached to the corresponding sliding block. The plurality of connecting springs are respectively and correspondingly matched with the plurality of abutting sleeves. The connecting spring is arranged between the outer ring sleeve and the inner ring sleeve. Both ends of any one of the connecting springs are respectively connected to the outer ring sleeve and the abutting sleeve. The sliding block can lock or release its abutting and fitting relationship with the insulating shaft.

6. The columnar lightning protection device for a line according to claim 5, characterized in that: When the frictional force generated by the plurality of sliding blocks on the insulating shaft together is greater than the force of the limiting spring on the limiting piece when the limiting piece abuts against the locking pin; and the frictional force generated by the plurality of sliding blocks on the insulating shaft together is less than the force of the limiting spring on the limiting piece when the fitting hole and the locking hole are mutually matched.

7. The line post lightning protection device according to claim 6, characterized in that: The insulating component further includes a replacement block, which is arranged in the insulating shaft. The replacement block is coaxially provided with a locking hole. The material of the replacement block is the same as that of the resistor chip, and the thickness of the replacement block is equal to the thickness of the thinnest position of the resistor chip.

8. An overhead line lightning protection device according to claim 7, characterized in that: The insulating component further includes a position sensor, which is arranged in the insulating shaft. The position sensor is used to detect the distance between it and the limiting piece, so as to judge the use conditions of the resistor chip and the umbrella sleeve; it further includes a control system, and the control system is communicatively connected with the position sensor.

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