Line column type lightning arrester

Abstract

The invention relates to a line column type lightning arrester, and belongs to the technical field of insulation lightning arresters, the line column type lightning arrester comprises an insulation shaft and a plurality of insulation assemblies, the insulation assemblies comprise resistor discs, the plurality of resistor discs are coaxially arranged on the insulation shaft at equal intervals along the axis direction of the insulation shaft, and the resistor discs are detachably arranged on the insulation shaft; through the arrangement of the detachable resistor disc, after the resistor disc is subjected to multiple lightning strokes, the resistor disc can be irreversibly damaged, and then the performance of the resistor disc is influenced, the resistor disc can be continuously used by disassembling the resistor disc and then replacing a new resistor disc.

Description

Technical Field

[0001] The invention belongs to the technical field of insulating lightning arresters, and in particular relates to a line column type lightning arrester. Background Art

[0002] Since my country is a populous country with a large population, and with the rapid economic development in recent years, industry has also developed, especially the power industry. my country has a large population, and the rapid industrial development has led to a sharp increase in electricity consumption. Therefore, my country continues to invest a lot of money to build power plants and lay lines. In the process of laying lines, lightning arresters are needed to protect the lines.

[0003] For example, the utility model patent with patent authorization announcement number: CN207116136U discloses a lightning protection line column arrester, including an insulating cover, a lightning arrester and a telescopic soft cover. The lightning arrester is connected under the insulating cover, and the telescopic soft cover is connected under the lightning arrester. The lightning arrester is provided with a number of umbrella covers, and a piercing arc is provided in the middle of the inner side of the insulating cover. Bolts are connected at both ends of the piercing arc, and wire glands are provided on the bolts. The two wire glands are connected by the piercing arc. A number of gap high-voltage resistors are provided inside the lightning arrester, and zinc oxide resistors are provided under the gap high-voltage resistors. A bottom connecting rod is provided inside the telescopic soft cover.

[0004] Based on the search of patent authorization announcement numbers and the shortcomings found therein: Several zinc oxide resistors in the existing lightning arrester are formed as a whole in a non-detachable manner and installed in the lightning arrester. When the lightning arrester is used in areas with frequent thunderstorms, the zinc oxide resistors will often be struck by lightning, which will cause irreversible damage to one of the zinc oxide resistors, thereby affecting the performance of the zinc oxide resistor. When replacing the zinc oxide resistor, all the zinc oxide resistors need to be replaced before they can be reused. Such a setting increases the cost of replacement. Summary of the invention

[0005] In order to solve the problem that several zinc oxide resistors in the existing lightning arrester are formed as a whole in a non-detachable manner and installed in the lightning arrester, when the lightning arrester is used in areas with frequent thunderstorms, the zinc oxide resistors will often be struck by lightning, which will cause irreversible damage to one of the zinc oxide resistors, thereby affecting the performance of the zinc oxide resistor. When replacing, all the zinc oxide resistors need to be replaced before they can be reused. Such an arrangement increases the cost of replacement. The present invention provides a line column lightning arrester.

[0006] The purpose of the present invention can be achieved through the following technical solutions: A line column lightning protection device comprises an insulating shaft and a plurality of insulating components, wherein the insulating components comprise resistor sheets, the plurality of resistor sheets are coaxially arranged on the insulating shaft at equal intervals along the axial direction of the insulating shaft, and the resistor sheets are detachably arranged on the insulating shaft.

[0007] As a preferred technical solution of the present invention, it also includes a locking pin and two locking nuts. The bottom of the insulating shaft is provided with a mounting slot hole, and the mounting slot hole is used to cooperate and connect with the top of the utility pole. The insulating shaft and the utility pole jointly form a locking slot hole, and the locking slot hole passes 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.

[0008] As a preferred technical solution of the present invention, the insulating component also includes a limiting plate, a limiting rope, a limiting spring and a limiting block. The interior of the insulating shaft is hollow, and the interior of the insulating shaft is communicated with the mounting slot. The limiting block and the limiting plate can be slidably arranged in the insulating shaft. The sliding direction of the limiting block and the sliding direction of the limiting plate are both parallel to the axial direction of the insulating shaft. The two ends of the limiting rope are respectively connected to the limiting block and the limiting plate. The limiting spring is arranged in the insulating shaft, and the two ends of the limiting spring are respectively connected to the insulating shaft and the limiting plate. The limiting plate can lock or release its mating relationship extending to the mounting slot.

[0009] As a preferred technical solution of the present invention, the insulating shaft is provided with a plurality of connecting grooves and a plurality of locking holes, the plurality of connecting grooves are matched one-to-one with the plurality of limiting blocks, and any of the connecting grooves is arranged at the projection of the corresponding limiting block on the sliding height of the insulating shaft; the plurality of locking holes are matched one-to-one with the plurality of connecting grooves, and any of the locking holes is located at the top of the corresponding connecting groove, and the locking holes are arranged inside the insulating shaft; The limiting block is provided with a matching hole, and the resistor sheet is provided with a connecting hole. The insulating component also includes a locking screw, through which the resistor sheet is abutted against the limiting block to drive the limiting block to move along the axial direction of the insulating shaft. The connecting hole, the matching hole and the locking hole can jointly form a matching slot hole, and the locking screw can lock or release its coaxial meshing connection relationship with the matching slot hole.

[0010] As a preferred technical solution of the present invention, the insulating component also includes a sealing block, which is sealingly arranged at the connecting groove. The sealing block and the corresponding resistor sheet can jointly lock or release the sealing matching relationship between the two and the corresponding connecting groove.

[0011] As a preferred technical solution of the present invention, the resistor sheet includes a resistor body, a plurality of sliding blocks and a sliding spring, the resistor body is coaxially provided with a connecting slot, the resistor body is coaxially connected to the insulating shaft through the connecting slot, the resistor body is provided with a plurality of sliding slots, and the plurality of sliding slots are uniformly arranged on the resistor body at equal angles around the central axis of the connecting slot, the plurality of connecting slots and the plurality of sliding springs are respectively matched with the plurality of sliding blocks in a one-to-one correspondence, any of the sliding blocks can be slidably arranged in the corresponding connecting slot, any of the sliding springs is arranged in the corresponding connecting slot, 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, and the inner side wall of the resistor body is abutted against the limiting block.

[0012] As a preferred technical solution of the present invention, the insulating assembly further includes an umbrella cover, and the umbrella cover is detachably arranged on the surface of the resistor; 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, and the outer ring sleeve wraps the resistor. The inner ring sleeve includes a plurality of connecting soft sleeves and a plurality of abutting sleeves. The abutting sleeves are evenly fitted on the surface of the resistor at equal angles around the central axis of the connecting slot hole. There is a connecting space between two adjacent abutting sleeves. The connecting spaces are matched with the connecting soft sleeves one by one. Any connecting soft sleeve is arranged in the corresponding connecting space. The two ends of the connecting soft sleeve are respectively connected to the adjacent The two abutment sleeves are hingedly arranged, and an inner ring sleeve formed by a plurality of connecting soft sleeves and a plurality of abutment sleeves is fitted on the surface of the resistor; a plurality of abutment sleeves are matched one-to-one with a plurality of sliding blocks, and any of the abutment sleeves is fitted on the corresponding sliding block; a plurality of connecting springs are matched one-to-one with a plurality of abutment sleeves, and the connecting springs are arranged between the outer ring sleeve and the inner ring sleeve, and the two ends of any of the connecting springs are respectively connected to the outer ring sleeve and the abutment sleeve, and the sliding block can lock or release its abutting relationship with the insulating shaft.

[0013] As a preferred technical solution of the present invention, the friction force generated by the plurality of sliding blocks on the insulating shaft is greater than the force of the limiting spring on the limiting plate when the limiting plate and the locking pin are in engagement with each other; and the friction force generated by the plurality of sliding blocks on the insulating shaft is less than the force of the limiting spring on the limiting plate when the matching hole and the locking hole are in engagement with each other.

[0014] As a preferred technical solution of the present invention, the insulating component also includes a replacement block, which is arranged in the insulating shaft, and a locking hole is coaxially opened in the replacement block. The material of the replacement block is consistent with the material of the resistor sheet, and the thickness of the replacement block is equal to the thickness of the resistor sheet at the thinnest position.

[0015] As a preferred technical solution of the present invention, the insulating component also includes a position sensor, which is arranged in the insulating shaft, and the position sensor is used to detect the distance between it and the limiting plate, and then determine the usage of the resistor and the umbrella cover; it also includes a control system, and the control system is communicatively connected to the position sensor.

[0016] The beneficial effects of the present invention are: By providing a detachable resistor, when the resistor is struck by lightning multiple times, it will be irreversibly damaged, which will affect the performance of the resistor. The resistor can be removed and replaced with a new resistor for continued use. However, in the existing lightning arrester, several zinc oxide resistors are formed as a whole in a non-detachable manner and installed in the lightning arrester. When the lightning arrester is used in areas with frequent thunderstorms, the zinc oxide resistors will often be struck by lightning, causing one of the zinc oxide resistors to be irreversibly damaged, which will affect the performance of the zinc oxide resistor. When replacing them, all the zinc oxide resistors need to be replaced before they can be reused. This solution replaces the existing lightning arrester replacement method of replacing the entire zinc oxide resistor by replacing a single resistor, thereby reducing the replacement cost and solving the problem that the several zinc oxide resistors in the existing lightning arrester are formed as a whole in a non-detachable manner and installed in the lightning arrester. When the lightning arrester is used in areas with frequent thunderstorms, the zinc oxide resistors will often be struck by lightning, causing irreversible damage to one of the zinc oxide resistors, thereby affecting the performance of the zinc oxide resistor. When replacing, all the zinc oxide resistors need to be replaced before they can be reused. Such a setting increases the cost of replacement. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to facilitate understanding by those skilled in the art, the present invention is further described below with reference to the accompanying drawings.

[0018] Figure 1 This is an overall diagram of a line column type lightning arrester of the present invention; Figure 2 It is an internal cross-sectional view of a resistor sheet of a line column type lightning arrester of the present invention; Figure 3 The present invention is an internal cross-sectional view of an insulating shaft of a line column type lightning arrester.

[0019] Description of main symbols In the figure: 1. insulating shaft; 2. insulating component; 201. resistor sheet; 2011. resistor body; 2012. sliding block; 2013. sliding spring; 202. limiting sheet; 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. DETAILED DESCRIPTION

[0020] In order to further explain the technical means and effects adopted by the present invention to achieve the predetermined invention purpose, the specific implementation method, structure, characteristics and effects of the present invention are described in detail below in conjunction with the accompanying drawings and preferred embodiments.

[0021] See also Figure 1-Figure 3 The present embodiment provides a line column lightning arrester, comprising an insulating shaft 1 and a plurality of insulating components 2, wherein the insulating components 2 comprise a resistor 201, wherein the plurality of resistors 201 are coaxially arranged on the insulating shaft 1 at equal intervals along the axial direction of the insulating shaft 1, and the resistor 201 is detachably arranged on the insulating shaft 1; by providing a detachable resistor 201, when the resistor 201 is struck by lightning for many times, irreversible damage will occur to the resistor 201 itself, thereby affecting the performance of the resistor 201, and the resistor 201 can be disassembled and replaced with a new resistor 201, and the device can continue to be used; however, in the existing lightning arrester, since the plurality of zinc oxide resistors are formed as a whole and installed in the arrester in a non-detachable manner, when the arrester is used in areas with frequent thunderstorms, the zinc oxide resistors will often be struck by lightning, thereby causing irreversible damage to one of the zinc oxide resistors, thereby affecting the performance of the zinc oxide resistor, and when replacing the zinc oxide resistors, all the zinc oxide resistors need to be replaced before they can be reused. This solution replaces the existing lightning arrester replacement method of replacing the entire zinc oxide resistor by replacing a single resistor 201, thereby reducing the replacement cost and solving the problem that the several zinc oxide resistors in the existing lightning arrester are formed as a whole in a non-detachable manner and installed in the lightning arrester. When the lightning arrester is used in areas with frequent thunderstorms, the zinc oxide resistors will often be struck by lightning, causing irreversible damage to one of the zinc oxide resistors, thereby affecting the performance of the zinc oxide resistor. When replacing, all the zinc oxide resistors need to be replaced before they can be reused. Such a setting increases the cost of replacement.

[0022] Specifically, it also includes a locking pin 3 and two locking nuts 4. A mounting slot is provided at the bottom of the insulating shaft 1, and the mounting slot is used to cooperate with the top of the electric pole. The insulating shaft 1 and the electric pole jointly form a locking slot, and the locking slot passes through both ends of the mounting slot. The locking pin 3 is coaxially installed in the locking slot, and both ends of the locking pin 3 extend out of the locking slot. The two locking nuts 4 are respectively meshed and connected with the two ends of the locking pin 3 extending out of the locking slot; by providing the locking pin 3 and the locking nut 4, when the locking pin 3 is coaxially arranged on the locking slot, the two locking nuts 4 are respectively coaxially installed on the two ends of the locking pin 3 extending out of the locking slot, so that the insulating shaft 1 is installed on the top of the electric pole.

[0023] Furthermore, the insulating assembly 2 of the present invention further includes a limiting sheet 202, a limiting rope 203, a limiting spring 204 and a limiting block 205. The interior of the insulating shaft 1 is hollow, and the interior of the insulating shaft 1 is interconnected with the mounting slot. The limiting block 205 and the limiting sheet 202 are slidably arranged in the insulating shaft 1. The sliding direction of the limiting block 205 and the sliding direction of the limiting sheet 202 are both parallel to the axial direction of the insulating shaft 1. The two ends of the limiting rope 203 are respectively connected to the limiting block 205 and the limiting sheet 202. The limiting spring 204 is arranged in the insulating shaft 1. The two ends of the spring 204 are respectively connected to the insulating shaft 1 and the limiting plate 202, and the limiting plate 202 can lock or release the matching relationship of the limiting plate 202 extending into the mounting slot. By providing the limiting plate 202, when the limiting plate 202 extends into the mounting slot, the mounting slot of the insulating shaft 1 and the top of the pole interfere with each other due to the limiting plate 202. Only when the limiting plate 202 is completely retracted into the mounting slot, the mounting slot of the insulating shaft 1 and the top of the pole will not interfere with each other, thereby ensuring the smooth connection between the insulating shaft 1 and the pole.

[0024] According to the above embodiment, in order to ensure that the staff has installed several resistors 201 on the insulating shaft 1 on the ground in advance, and then climbed up the electric pole to install the insulating shaft 1 on the electric pole; the insulating shaft 1 of this scheme is provided with several connecting grooves and several locking holes, and the several connecting grooves are matched one-to-one with the several limiting blocks 205, and any connecting groove is set 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 matched one-to-one with the several connecting grooves, and any locking hole is located at the top of the corresponding connecting groove, the locking hole is set inside the insulating shaft 1, and the connecting groove is set on the surface of the insulating shaft 1; in addition, the limiting block 205 is provided with a matching hole, the resistor 201 is provided with a connecting hole, and the insulating component 2 also includes a locking screw, through which the resistor 201 is pressed against the limiting block 205, and the limiting block 205 is driven to move along the axial direction of the insulating shaft 1, and the connecting hole, matching hole, and connecting hole are provided. The engaging hole and the locking hole can jointly form a matching slot, and the locking screw can lock or release the coaxial meshing connection relationship between it and the matching slot; by providing the locking screw, when the resistor 201 drives the corresponding limiting block 205 to slide along the axial direction of the insulating shaft 1 and slide to the specified position, the connecting hole of the resistor 201, the matching hole of the limiting block 205 and the locking hole of the insulating shaft 1 jointly form a matching slot, and the locking screw is coaxially meshed with the matching slot to achieve the installation of the resistor 201; at the same time, the corresponding limiting piece 202 that completes the installation of the resistor 201 will shrink inside the insulating shaft 1, and after all the resistors 201 are installed, the limiting pieces 202 located in the installation slots will shrink inside the insulating shaft 1; from then on, the limiting piece 202 releases its mating relationship extending to the installation slot, and the construction personnel can smoothly install the insulating shaft 1 on the top of the pole.

[0025] It is worth noting that in order to ensure the sealing inside the insulating shaft 1, the insulating component 2 of this scheme also includes a sealing block, which is sealed and arranged at the connecting groove. The sealing block and the corresponding resistor sheet 201 can jointly lock or release the sealing cooperation relationship between the two and the corresponding connecting groove.

[0026] Specifically, the specific structure of the resistor sheet 201 of the present scheme is as follows: the resistor sheet 201 includes a resistor body 2011, a plurality of sliding blocks 2012 and a sliding spring 2013, the resistor body 2011 is coaxially provided with a connecting slot, the resistor body 2011 is coaxially connected with the insulating shaft 1 through the connecting slot, the resistor body 2011 is provided with a plurality of sliding slots, and the plurality of sliding slots are uniformly arranged on the resistor body 2011 at equal angles around the central axis of the connecting slot, the plurality of sliding blocks 2012 and the plurality of sliding springs 2013 are respectively matched with the plurality of connecting slots one by one, and any sliding block 2012 can be slidably arranged Placed in the corresponding connection slot, any sliding spring 2013 is set in the corresponding connection slot, 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 connection hole, the inner side wall of the resistor body 2011 is abutted 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 seal the corresponding connecting groove, but 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 axial direction of the connecting groove. It is also worth noting that the sliding block 2012 can achieve a relationship of mutual contact with the surface of the insulating shaft 1 by sliding along the corresponding connection slot.

[0027] In addition, it is worth mentioning that the present solution is applied to areas with frequent thunderstorms, and the improvement on the resistor 201 can only cope with lightning strikes in thunderstorms and heavy rain in thunderstorms; in order to ensure that the lightning protection device of the present solution can achieve a waterproof function, the insulating component 2 of the present solution also includes an umbrella cover 5, which is detachably arranged on the surface of the resistor 201. By providing the umbrella cover 5, rainwater can be prevented from entering the surface of the resistor 201, thereby affecting the normal operation of the resistor 201.

[0028] Furthermore, thunderstorms are often accompanied by strong winds. Therefore, when there is thunderstorm, strong winds will damage the umbrella cover 5, thereby causing the waterproof function of the umbrella cover 5 to fail. Based on this, in order to solve this problem, the umbrella cover 5 of this scheme includes an outer ring sleeve 501, an inner ring sleeve 502 and a plurality of connecting springs 503. The outer ring sleeve 501 is coaxially sleeved on the insulating shaft 1. The outer ring sleeve 501 wraps the resistor 201. The inner ring sleeve 502 includes a plurality of connecting soft sleeves 5021 and a plurality of abutting sleeves 5022. The plurality of abutting sleeves 5022 are evenly fitted on the surface of the resistor 201 at equal angles around the central axis of the connecting slot. There is a connecting space between two adjacent abutting sleeves 5022. The plurality of connecting spaces are matched one-to-one with the plurality of connecting soft sleeves 5021. Any connecting soft sleeve 5021 is arranged in the corresponding connecting space. The two ends of the connecting soft sleeve 5021 are respectively connected to the corresponding Two adjacent abutment sleeves 5022 are hingedly arranged, and an inner ring sleeve 502 formed by a plurality of connecting soft sleeves 5021 and a plurality of abutment sleeves 5022 is fitted on the surface of the resistor 201; a plurality of abutment sleeves 5022 are matched one-to-one with a plurality of sliding blocks 2012, and any abutment sleeve 5022 is fitted on the corresponding sliding block 2012, and a plurality of connecting springs 503 are matched one-to-one with a plurality of abutment sleeves 5022, and the connecting springs 503 are arranged between the outer ring sleeve 501 and the inner ring sleeve 502, and the two ends of any connecting spring 503 are respectively connected to the outer ring sleeve 501 and the abutment sleeve 5022, and the sliding block 2012 can lock or release its abutting fitting relationship with the insulating shaft 1. It is also worth noting that the outer ring sleeve 501 of this scheme is made of hard material, while the inner ring sleeve 502 is made of flexible material; the role of the inner ring sleeve 502 is to make the resistor 201 have a waterproof effect by being attached to the surface of the resistor 201; and the role of the outer ring sleeve 501 is to prevent the impurities brought by the strong wind from scratching the surface of the inner ring sleeve 502 when a strong wind occurs. 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 scheme is also provided with a wind sensor, which is arranged in the sealed area between the inner ring sleeve 502 and the outer ring sleeve 501 to detect whether the outer ring sleeve 501 is damaged; its 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 shows a value, it means that the outer ring sleeve 501 is damaged, and the wind from the outside is poured into the sealed area.

[0029] Furthermore, in order to determine the performance status of the resistor 201, the insulating assembly 2 of the present solution further includes a replacement block 206, which is arranged in the insulating shaft 1, and a locking hole is coaxially provided on the replacement block 206. The material of the replacement block 206 is consistent with the material of the resistor 201, and the thickness of the replacement block 206 is equal to the thickness of the resistor 201 at its thinnest position. With such a configuration, when the resistor 201 is struck by lightning, the resistor 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 201 at its thinnest position, when the resistor 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 replacement block 206 will be damaged before the structure of the resistor 201, thereby releasing the relationship between the resistor 201 and the replacement block 206 connected by the locking screw. At this time, the resistor 201 has no force cooperating with the replacement block 206, but the resistor 201 still cooperates with the limiting block 205, so the resistor 201 will move toward the bottom due to the force of the limiting spring 204; based on this, the insulating component 2 of the present scheme also includes a position sensor 207, and the position sensor 207 is arranged in the insulating shaft 1. The position sensor 207 is used to detect the distance between it and the limiting plate 202, and then determine the usage of the resistor 201; it also includes a control system, the control system is communicated with the position sensor 207, and then the position sensor 207 transmits data to the control system, so that the staff can remotely determine the usage of the umbrella cover 5 and the resistor 201.

[0030] Specifically, the detection principle of the position sensor 207 of the present scheme is described in detail here: assuming that the resistor 201 is in normal use, the spacing between the position sensor 207 and the limiting plate 202 is N0; then, when the position sensor 207 detects that the real-time spacing N=N0 between it and the limiting plate 202, it means that the resistor 201 is in normal use; and when the position sensor 207 detects that the real-time spacing N<N0 between it and the limiting plate 202, it means that the resistor 201 is damaged and needs to be replaced in time. In addition, due to the presence of the sliding block 2012 in the present embodiment, the friction force generated by the plurality of sliding blocks 2012 on the insulating shaft 1 is greater than the force of the limiting spring 204 on the limiting plate 202 when the limiting plate 202 and the locking pin 3 are in contact with each other; and the friction force generated by the plurality of sliding blocks 2012 on the insulating shaft 1 is less than the force of the limiting spring 204 on the limiting plate 202 when the matching hole and the locking hole are in contact with each other; since there are multiple sliding blocks 2012, it can be judged based on the distance between the position sensor 207 and the limiting plate 202 after the resistor 201 is damaged, how many sliding springs 2013 actually need to be reinstalled after the outer ring sleeve 501 is replaced. It is important to explain here that the present invention has another purpose of setting the sliding block 2012, that is, since the present invention is applicable to thunderstorms, which are often accompanied by strong winds, in order to prevent the damaged resistor 201 from sliding up and down when the strong wind blows, thereby wearing out the surface of the insulating shaft 1, the present invention specially sets the sliding block 2012. At this time, it is ensured that even if the resistor 201 is damaged, the resistor 201 will not shake violently with the strong wind, thereby avoiding wearing out the surface of the insulating shaft 1, thereby achieving the purpose of increasing the working life of the insulating shaft 1.

[0031] The above description is only a preferred embodiment of the present invention and does not limit the present invention in any form. Although the present invention has been disclosed as a preferred embodiment as above, it is not used to limit the present invention. Any technical personnel in this field can make some changes or modify the technical contents disclosed above into equivalent embodiments without departing from the scope of the technical solution of the present invention. However, any brief modifications, equivalent changes and modifications made to the above embodiments based on the technical essence of the present invention without departing from the content of the technical solution of the present invention are still within the scope of the technical solution of the present invention.

Claims

1. A line column lightning arrester, characterized in that: It comprises an insulating shaft and a plurality of insulating components, wherein the insulating components comprise resistor sheets, and the plurality of resistor sheets are coaxially arranged on the insulating shaft at equal intervals along the axial direction of the insulating shaft, and the resistor sheets are detachably arranged on the insulating shaft.

2. A line column type lightning arrester according to claim 1, characterized in that: It also includes a locking pin and two locking nuts. A mounting slot is provided at the bottom of the insulating shaft. The mounting slot is used to cooperate with the top of the electric pole. The insulating shaft and the electric pole jointly form a locking slot. The locking slot passes through both ends of the mounting slot. The locking pin is coaxially installed in the locking slot. Both ends of the locking pin extend out of the locking slot. The two locking nuts are respectively meshed with the two ends of the locking pin extending out of the locking slot.

3. A line column type lightning arrester according to claim 2, characterized in that: The insulating component also includes a limiting plate, a limiting rope, a limiting spring and a limiting block. The interior of the insulating shaft is hollow, and the interior of the insulating shaft is communicated with the mounting slot. The limiting block and the limiting plate can be slidably arranged in the insulating shaft. The sliding direction of the limiting block and the sliding direction of the limiting plate are both parallel to the axial direction of the insulating shaft. The two ends of the limiting rope are respectively connected to the limiting block and the limiting plate. The limiting spring is arranged in the insulating shaft, and the two ends of the limiting spring are respectively connected to the insulating shaft and the limiting plate. The limiting plate can lock or release its matching relationship extending to the mounting slot.

4. A line column type lightning arrester according to claim 3, characterized in that: The insulating shaft is provided with a plurality of connecting grooves and a plurality of locking holes, the connecting grooves are matched with the plurality of limiting blocks in a one-to-one correspondence, and any of the connecting grooves is arranged at the projection of the corresponding limiting block on the sliding height of the insulating shaft; the locking holes are matched with the connecting grooves in a one-to-one correspondence, and any of the locking holes is located at the top of the corresponding connecting groove, and the locking holes are arranged inside the insulating shaft; The limiting block is provided with a matching hole, and the resistor sheet is provided with a connecting hole. The insulating component also includes a locking screw, through which the resistor sheet is abutted against the limiting block to drive the limiting block to move along the axial direction of the insulating shaft. The connecting hole, the matching hole and the locking hole can jointly form a matching slot hole, and the locking screw can lock or release its coaxial meshing connection relationship with the matching slot hole.

5. A line column type lightning arrester according to claim 4, characterized in that: The insulating component also includes a sealing block, which is sealingly arranged at the connecting groove. The sealing block and the corresponding resistor sheet can jointly lock or release the sealing matching relationship between the two and the corresponding connecting groove.

6. A line column type lightning arrester according to claim 4, characterized in that: The resistor sheet includes a resistor body, a plurality of sliding blocks and a sliding spring. The resistor body is coaxially provided with a connecting slot hole. The resistor body is coaxially connected to 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 uniformly arranged on the resistor body at equal angles around the central axis of the connecting slot hole. A plurality of sliding blocks and a plurality of sliding springs are respectively matched with the plurality of connecting slot holes in a one-to-one correspondence. Any of the sliding blocks can be slidably arranged in the corresponding connecting slot hole. Any 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 is pressed against the limiting block.

7. A line column type lightning arrester according to claim 6, characterized in that: The insulating assembly further includes an umbrella cover, which is detachably arranged on the surface of the resistor; 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, and the outer ring sleeve wraps the resistor. The inner ring sleeve includes a plurality of connecting soft sleeves and a plurality of abutting sleeves. The abutting sleeves are evenly fitted on the surface of the resistor at equal angles around the central axis of the connecting slot hole. There is a connecting space between two adjacent abutting sleeves. The connecting spaces are matched with the connecting soft sleeves one by one. Any connecting soft sleeve is arranged in the corresponding connecting space. The two ends of the connecting soft sleeve are respectively connected to the adjacent The two abutment sleeves are hingedly arranged, and an inner ring sleeve formed by a plurality of connecting soft sleeves and a plurality of abutment sleeves is fitted on the surface of the resistor; a plurality of abutment sleeves are matched one-to-one with a plurality of sliding blocks, and any of the abutment sleeves is fitted on the corresponding sliding block; a plurality of connecting springs are matched one-to-one with a plurality of abutment sleeves, and the connecting springs are arranged between the outer ring sleeve and the inner ring sleeve, and the two ends of any of the connecting springs are respectively connected to the outer ring sleeve and the abutment sleeve, and the sliding block can lock or release its abutting relationship with the insulating shaft.

8. A line column type lightning arrester according to claim 7, characterized in that: The friction force generated by the plurality of sliding blocks on the insulating shaft is greater than the force of the limiting spring on the limiting plate when the limiting plate and the locking pin are in abutment with each other; and the friction force generated by the plurality of sliding blocks on the insulating shaft is less than the force of the limiting spring on the limiting plate when the matching hole and the locking hole are in cooperation with each other.

9. A line column type lightning arrester according to claim 8, characterized in that: The insulating component also 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 consistent with the material of the resistor sheet, and the thickness of the replacement block is equal to the thickness of the resistor sheet at the thinnest position.

10. A line column type lightning arrester according to claim 9, characterized in that: The insulating component also includes a position sensor, which is arranged in the insulating shaft and is used to detect the distance between the position sensor and the limiting plate, and then determine the usage of the resistor and the umbrella cover; and also includes a control system, which is communicatively connected with the position sensor.

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