A crack-proof column type porcelain insulator

Abstract

The present invention discloses an anti-crack column type porcelain insulator, which relates to the field of insulators. An anti-crack column type porcelain insulator comprises an insulator, wherein the insulator comprises a steel column, a porcelain sleeve and an umbrella skirt, the steel column and the porcelain sleeve are fixed by a glue structure, an extrusion assembly is fixedly arranged at the outer ring of the steel column, the extrusion assembly is arranged in multiple groups, and the multiple extrusion assemblies are distributed at equal distances along the height direction of the steel column, and the extrusion assembly is composed of a sheet structure that surrounds the outer circumference of the steel column and is distributed at equal angles. Based on the arrangement of the extrusion assembly, the present invention can make the bubbles in the glue structure be exhausted, ensuring that there are no bubbles or empty layers in the glue structure. When in use, the insulator can maintain a stable structure and is not prone to the problem of cracking due to uneven force caused by tilting. The cleaning assembly rotates along the outer ring of the insulator under the action of wind force to achieve the purpose of automatic cleaning of the insulator.

Description

Technical Field

[0001] The invention relates to the field of insulators, and in particular to an anti-cracking column type porcelain insulator. Background Art

[0002] In most cases, insulators work in the air, forming a situation where porcelain insulators and air are insulated in parallel, and there is a clear interface between the porcelain and the air. When the inter-pole voltage of an insulator in operation exceeds a certain value, discharge or penetrating air breakdown, i.e. flashover, may occur on the interface.

[0003] The flashover voltage is divided into:

[0004] 1. Dry flashover voltage;

[0005] 2. Wet flashover voltage;

[0006] 3. Dirty flashover voltage;

[0007] Among them, the dirty flashover voltage is the most harmful. When impurities such as dust, dirt, fog, dew, snow or frost accumulate on the surface of the insulator, these tiny conductive particles will greatly reduce the resistance of the insulation. In this case, the starting voltage is lower because the impurities provide more conductive paths; and the most commonly used method in the prior art is to apply a stain-resistant layer on the surface of the insulator for anti-fouling, but the anti-fouling effect is limited; in the existing invention patents, such as the patent named: A self-cleaning device for porcelain insulators (patent application number: CN202310714171.X), a self-cleaning insulator is proposed, which achieves the purpose of cleaning the dirt on the surface of the insulator, but the actual application effect is still poor. It is well known that cleaning the dirt on the surface of the insulator is mainly to reduce the conductive path, but in the above patent, the cleaning mechanism itself is attached to the surface of the insulator as an easily conductive conductor. Although it can clean the surface of the insulator, the insulating effect of the insulator itself is weakened or eliminated, and the conductive path is correspondingly increased, making the insulator more susceptible to electrical breakdown and cracking.

[0008] Another reason why insulators are prone to cracking is that the connection between the steel column and the porcelain parts is not tight. When the adhesive material filled between the steel column and the porcelain parts contains bubbles, hollow layers and other problems, the porcelain parts are prone to tilt or shake after the insulators have been used for a long time. When affected by stress, the stress distribution is uneven, making them more prone to cracking.

[0009] Therefore, in view of the above newly discovered problems, it is necessary to propose an anti-cracking column type porcelain insulator to solve the above problems. Summary of the invention

[0010] The object of the present invention is to provide a crack-proof column type porcelain insulator to solve the problem that it is difficult for the insulator to simultaneously achieve stable gluing, self-cleaning, prevent the insulator from being more easily cracked by electrical breakdown, and have good insulation.

[0011] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: an anti-crack column type porcelain insulator, comprising an insulator, the insulator comprising a steel column, a porcelain sleeve and an umbrella skirt, the umbrella skirt being provided in plurality, the plurality of umbrella skirts being integrally provided at the outer ring of the porcelain sleeve, the steel column being inserted into a hollow hole in the middle of the porcelain sleeve, and the steel column and the porcelain sleeve being fixed by a glue structure, an extrusion assembly being fixedly provided at the outer ring of the steel column, the extrusion assembly being provided in a plurality of groups, the plurality of extrusion assemblies being distributed at equal distances along the height direction of the steel column, the extrusion assembly being composed of sheet structures surrounding the outer circumference of the steel column and distributed at equal angles, the glue structure being pre-installed in the hollow hole in the middle of the porcelain sleeve, and bubbles doped in the glue structure being discharged from the gap between two adjacent sheet structures when the steel column is inserted into the hollow hole;

[0012] The bottom of the insulator is connected to a cleaning component via a connecting component. The connecting component is telescopically arranged. The cleaning component is arranged on the side of the insulator. When the connecting component is telescopically arranged, the cleaning component is controlled to separate or fit with the insulator. The connecting component and the insulator are relatively rotatably arranged. The cleaning component rotates along the outer ring of the insulator under the action of wind force.

[0013] Preferably, the connection assembly comprises a telescopic connection piece, a rotating sleeve and a connection frame;

[0014] The connecting frame is an annular structure, and the annular structure is rotatably sleeved on the outer ring of the lower end of the porcelain sleeve;

[0015] The connecting frame is fixedly connected to the outer ring of the annular structure, and the telescopic connecting piece is connected to the connecting frame.

[0016] Preferably, the cleaning assembly includes a second connecting plate, a first connecting plate and a sponge cleaning block, the bottom of the second connecting plate is connected to the end of the telescopic connecting piece, the first connecting plate is arranged on a side of the second connecting plate close to the insulator, the sponge cleaning block is fixedly arranged on the surface of the first connecting plate, and a side of the sponge cleaning block away from the first connecting plate is provided with a tooth groove corresponding to the umbrella skirt.

[0017] Preferably, a blade is fixedly provided on a side of the second connecting plate away from the first connecting plate.

[0018] Preferably, the sponge cleaning block is provided with air holes, and there are multiple air holes. A stainless steel spring is fixedly connected to a side of the first connecting plate away from the sponge cleaning block, and one end of the stainless steel spring away from the first connecting plate is fixedly connected to the surface of the second connecting plate. There are multiple stainless steel springs, and the multiple stainless steel springs are distributed at equal distances.

[0019] Preferably, the annular structure includes two clamps connected to each other, both clamps are semi-annular, and the two clamps are fixed by screws.

[0020] Preferably, the telescopic connecting member includes a telescopic tube, a telescopic rod and a memory metal strip, the telescopic tube is fixedly connected to the connecting frame, the telescopic rod is fixedly connected to the second connecting plate, one end of the telescopic rod away from the second connecting plate is movably extended into the interior of the telescopic tube, one end of the memory metal strip is fixedly connected to the end of the telescopic rod movably extended into the interior of the telescopic tube, and the other end of the memory metal strip is fixedly connected to the inner wall of the telescopic tube away from the telescopic rod.

[0021] Preferably, the memory metal strip is a nickel-titanium alloy memory metal, and the memory metal strip is spring-shaped.

[0022] Preferably, the telescopic connecting member is any one of an electric push rod, an electric cylinder or an electric oil cylinder.

[0023] Preferably, the air hole is any one of a rectangular hole, an S-shaped hole, a triangular hole, and a circular hole.

[0024] Technical effects and advantages of the present invention:

[0025] 1. The cleaning component rotates along the outer ring of the insulator under the action of wind force and cleans the outer surface of the insulator, realizing the purpose of self-cleaning of the insulator by the driving effect of wind force, preventing the temperature of the insulator from rising, and controlling the separation or adhesion of the cleaning component and the insulator by the expansion and contraction of the connecting component, which can ensure that the cleaning component and the insulator are adhered when cleaning is needed to achieve the cleaning purpose. Under normal use, the cleaning component is separated from the insulator to avoid the loss of insulation effect due to the increase of conductive paths on the surface of the insulator caused by the adhesion of the cleaning component to the surface of the insulator;

[0026] 2. When the cleaning component rotates, the wind force acts evenly on and concentrates around the insulator, which has a good heat dissipation effect on the insulator. When the cleaning component rotates, the eddy current wind force is generated, which is also conducive to removing the floating dust and other dirt on the outer surface of the insulator, and the outer surface of the insulator continues to be kept clean when the insulator does not need to be cleaned;

[0027] 3. The invention utilizes the thermal expansion and contraction characteristics of the nickel-titanium alloy memory metal to determine whether the insulator needs to be cleaned;

[0028] 4. When the wind passes through the air hole, it will cause the sponge cleaning block to vibrate within a certain range. When the insulator and the sponge cleaning block are in contact, this vibration phenomenon increases the cleaning effect on the outer surface of the insulator. When the insulator and the sponge cleaning block are separated, this vibration phenomenon can shake off the dust on the surface of the sponge cleaning block, thereby cleaning the sponge cleaning block and keeping the sponge cleaning block in continuous use for a longer time.

[0029] 5. The air holes increase the contact area between the wind and the sponge cleaning block, which is conducive to the rapid drying of rainwater absorbed by the sponge cleaning block. When the temperature of the outer surface of the insulator rises, the sponge cleaning block can remain dry and in contact with the outer surface of the insulator, without damaging the insulation of the insulator;

[0030] 6. Based on the setting of the extrusion component, the bubbles in the glued structure can be exhausted, ensuring that there are no bubbles or empty layers in the glued structure. When in use, the insulator can maintain a stable structure and is not prone to tilting and causing uneven force and cracking. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] Figure 1 It is a schematic diagram of the structure of the anti-crack column type porcelain insulator of the present invention.

[0032] Figure 2 It is a cross-sectional view of the anti-crack column type porcelain insulator of the present invention.

[0033] Figure 3 For the present invention Figure 2 A schematic diagram of the enlarged structure in the middle.

[0034] Figure 4 It is a schematic diagram of the steel column structure of the present invention.

[0035] Figure 5 It is a three-dimensional structural schematic diagram of the insulator and the cleaning assembly of the present invention when used together.

[0036] Figure 6 It is a schematic diagram of the structure when the insulator and the cleaning component of the present invention are separated.

[0037] Figure 7 It is a schematic diagram of the structure when the cleaning assembly of the present invention is attached to the surface of the outer ring of the insulator.

[0038] Figure 8 It is a schematic diagram of the state structure of the telescopic connector of the present invention when it is subjected to a temperature that does not exceed a set threshold value.

[0039] Fig. 9 It is a schematic diagram of the state structure of the telescopic connector of the present invention when it is subjected to a temperature exceeding a set threshold value.

[0040] Fig.10 It is a schematic diagram of the structure of the rotating sleeve of the present invention.

[0041] In the figure: 1. insulator; 11. steel column; 12. porcelain sleeve; 111. extrusion assembly; 13. umbrella skirt; 14. glue structure; 2. cleaning assembly; 21. sponge cleaning block; 22. first connecting plate; 23. second connecting plate; 24. blade; 25. stainless steel spring; 26. tooth groove; 27. air hole; 3. connection assembly; 31. telescopic connection; 311. telescopic cylinder; 312. telescopic rod; 313. memory metal strip; 32. rotating sleeve; 33. connecting frame. DETAILED DESCRIPTION

[0042] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0043] In embodiment 1, the present invention provides Figure 1 - Fig.10 An anti-crack column type porcelain insulator shown includes an insulator 1, which includes a steel column 11, a porcelain sleeve 12 and an umbrella skirt 13. A plurality of umbrella skirts 13 are provided, and the plurality of umbrella skirts 13 are integrally arranged at the outer ring of the porcelain sleeve 12. The steel column 11 is inserted into a hollow hole in the middle of the porcelain sleeve 12, and the steel column 11 and the porcelain sleeve 12 are fixed by a glue structure 14. The insulator 1 is an existing common column type porcelain insulator, which is usually used in the field of power grids and AC electrified railway contact networks, and can be used in areas with different pollution levels.

[0044] The applicable ambient temperature of the insulator 1 is -40 to +40°C. When the temperature exceeds this threshold, the service life of the insulator 1 will be reduced, especially when the temperature of the insulator 1 exceeds 60°C. The usual reasons are: dust and dirt are accumulated on the surface of the insulator 1 or there is electrical breakdown inside the insulator 1. When the surface of the insulator 1 is contaminated or broken down, local discharge will be formed inside the insulator 1, which will lead to the accumulation and release of energy, thereby making the surface temperature of the insulator 1 higher, reducing the service life, and easily causing electrical breakdown, making the insulator 1 more prone to cracking.

[0045] In order to solve the problem that the insulator 1 is prone to cracking due to the presence of dirt on the surface of the insulator 1 which is difficult to clean, the present invention has a cleaning component 2 connected to the bottom of the insulator 1 through a connecting component 3, the cleaning component 2 is arranged on the side of the insulator 1, and the connecting component 3 and the insulator 1 are relatively rotatable. The cleaning component 2 rotates along the outer ring of the insulator 1 under the action of wind force and cleans the outer surface of the insulator 1, thereby achieving the purpose of self-cleaning of the insulator 1 by the driving effect of wind force and preventing the temperature of the insulator 1 from rising.

[0046] The connecting component 3 is a retractable setting, and the extension and retraction of the connecting component 3 is used to control the separation or adhesion of the cleaning component 2 and the insulator 1, which can ensure that the cleaning component 2 is adhered to the insulator 1 when cleaning is needed to achieve the cleaning purpose. Under normal use, the cleaning component 2 is separated from the insulator 1 to avoid the cleaning component 2 adhering to the surface of the insulator 1, which increases the conductive path on the surface of the insulator 1 and loses its insulating effect.

[0047] In the present invention, the expansion and contraction of the connecting component 3 is still controlled by temperature changes. When the temperature exceeds the set threshold, the connecting component 3 contracts to make the cleaning component 2 fit together with the outer surface of the insulator 1. At this time, the separation can drive the cleaning component 2 to rotate to complete the cleaning of the outer surface of the insulator 1; when the temperature does not exceed the set threshold, it proves that the working environment of the insulator 1 is good and the cleanliness of the outer surface of the insulator 1 is good, so it is not easy to have excessive temperature.

[0048] Furthermore, the present invention controls the expansion and contraction of the connecting component 3 by temperature change, which also satisfies the requirement of temporarily attaching the cleaning component 2 to the outer ring of the insulator 1 for cleaning and cooling when cleaning is needed. When the insulator 1 returns to the normal working temperature range, the cleaning component 2 is separated from the insulator 1, and the conductive path on the surface of the insulator 1 will not increase. When the temperature on the insulator 1 does not exceed the set threshold, it proves that cleaning is not required, and the cleaning component 2 also remains in a state of not being attached to the insulator 1. At this time, the wind force will continue to push the cleaning component 2 to rotate. When the cleaning component 2 rotates, the wind force acts evenly on and concentrates around the insulator 1, which has a good heat dissipation effect on the insulator 1. When the cleaning component 2 rotates, the eddy wind force generated is also conducive to removing dirt such as floating dust on the outer surface of the insulator 1, and the outer surface of the insulator 1 continues to be kept clean when the insulator 1 does not need to be cleaned.

[0049] In the present invention, the connecting assembly 3 includes a telescopic connecting piece 31, a rotating sleeve 32 and a connecting frame 33; the connecting frame 33 is an annular structure, and the rotating sleeve of the annular structure is arranged at the outer ring of the lower end of the porcelain sleeve 12; the connecting frame 33 is fixedly connected to the outer ring of the annular structure, and the telescopic connecting piece 31 is connected to the connecting frame 33. The connecting assembly 3 serves the purpose of rotatably connecting the cleaning assembly 2 to the insulator 1. When the wind drives the cleaning assembly 2 to rotate, the rotating sleeve 32 rotates at the outer ring of the porcelain sleeve 12.

[0050] In a specific implementation, the annular structure includes two clamps spliced ​​to each other, both of which are semi-annular and fixed by screws, so the disassembly and assembly are simple and convenient, and it is more practical.

[0051] The telescopic connecting member 31 in the present invention comprises a telescopic tube 311, a telescopic rod 312 and a memory metal strip 313. The telescopic tube 311 is fixedly connected to the connecting frame 33, the telescopic rod 312 is fixedly connected to the second connecting plate 23, one end of the telescopic rod 312 away from the second connecting plate 23 movably extends into the telescopic tube 311, one end of the memory metal strip 313 is fixedly connected to the end of the telescopic rod 312 movably extending into the telescopic tube 311, and the other end of the memory metal strip 313 is fixedly connected to the inner wall of the telescopic tube 311 away from the telescopic rod 312; the memory metal strip 313 is spring-shaped, and when the temperature on the insulator 1 does not exceed the set threshold value, the memory metal strip 313 located on one side of the insulator 1 keeps substantially the same temperature as that on the insulator 1. Therefore, the memory metal strip 313 is initially in a relatively long state, and can resist the telescopic rod 312 from moving in the direction away from the connecting frame 33, so that the overall length of the telescopic connecting member 31 is relatively long, while the insulator 1 is kept separated from the cleaning assembly 2.

[0052] When the temperature on the insulator 1 exceeds the set threshold, the memory metal strip 313 recovers its original spring shape after being heated, so that the telescopic rod 312 is pulled toward the direction close to the connecting frame 33. At this time, the overall length of the telescopic connector 31 is shorter, and the cleaning assembly 2 can fit on the outer ring of the insulator 1.

[0053] During specific use, air holes may be provided on the telescopic cylinder 311 to allow air to flow inside and outside the telescopic cylinder 311 , so that the heat received by the memory metal strip 313 and the heat on the insulator 1 remain substantially consistent.

[0054] It should be noted that the memory metal strip 313 is a nickel-titanium alloy memory metal. The nickel-titanium alloy memory metal can restore its original spring shape when the temperature is above 40°C, and can maintain the state for a longer time when the temperature is below 40°C. The specific principle is that the crystal structure of nickel-titanium alloy above 40°C and below 40°C is different. It is a common memory metal currently available and will not be elaborated here.

[0055] The cleaning assembly 2 in the present invention comprises a second connecting plate 23, a first connecting plate 22 and a sponge cleaning block 21, the bottom of the second connecting plate 23 is connected to the end of the telescopic connecting piece 31, the first connecting plate 22 is arranged on the side of the second connecting plate 23 close to the insulator 1, the sponge cleaning block 21 is fixedly arranged on the surface of the first connecting plate 22, and a side of the sponge cleaning block 21 away from the first connecting plate 22 is provided with a tooth groove 26 corresponding to the umbrella skirt 13; when the cleaning assembly 2 rotates, the sponge cleaning block 21 is attached to the outer ring of the insulator 1 and cleans the outer ring of the insulator 1, and the tooth groove 26 on the surface of the sponge cleaning block 21 can just adapt to the umbrella skirt 13 at the outer ring of the porcelain sleeve 12, so as to achieve the purpose of fully cleaning the outer ring of the porcelain sleeve 12 and the upper and lower outer surfaces of the umbrella skirt 13.

[0056] A blade 24 is fixedly provided on one side of the second connecting plate 23 away from the first connecting plate 22 . When there is natural wind, the natural wind blows the blade 24 , so that the blade 24 , the second connecting plate 23 and the sponge cleaning block 21 rotate along the outer ring of the insulator 1 as a whole.

[0057] It should be noted that the insulator 1 is usually installed at a high place, so the wind conditions are good and the air flow at high altitude is rarely stagnant. Therefore, the cleaning component 2 can be used in conjunction with the insulator 1, and conventional gears, gear rings, motors and other technologies can also be used in the prior art to make the cleaning component 2 rotate around the outer ring of the insulator 1. The specific prior art can be set according to actual needs and will not be elaborated here.

[0058] In the present invention, an air hole 27 is provided on the sponge cleaning block 21, and there are multiple air holes 27. A stainless steel spring 25 is fixedly connected to a side of the first connecting plate 22 away from the sponge cleaning block 21, and one end of the stainless steel spring 25 away from the first connecting plate 22 is fixedly connected to the surface of the second connecting plate 23. There are multiple stainless steel springs 25, and the multiple stainless steel springs 25 are distributed at equal distances. Due to the inconsistent stress generated when the wind passes through the air hole 27 and the stainless steel spring 25 is provided at the bottom of the first connecting plate 22, when the wind passes through the air hole 27, it will drive the sponge cleaning block 21 to vibrate within a certain range. When the insulator 1 is in contact with the sponge cleaning block 21, this vibration phenomenon increases the cleaning effect on the outer surface of the insulator 1. When the insulator 1 is separated from the sponge cleaning block 21, this vibration phenomenon can cause the dust on the surface of the sponge cleaning block 21 to fall off, thereby achieving the purpose of cleaning the sponge cleaning block 21 and keeping the sponge cleaning block 21 in continuous use for a longer time.

[0059] It is also taken into consideration that the sponge cleaning block 21 may be soaked in rainy days, and the provision of the wind hole 27 increases the contact area between the wind and the sponge cleaning block 21, which is conducive to the rapid drying of the rainwater absorbed in the sponge cleaning block 21. When the temperature of the outer surface of the insulator 1 rises, the sponge cleaning block 21 can remain in a dry state and in contact with the outer surface of the insulator 1, and will not damage the insulation of the insulator 1.

[0060] In actual use, the air hole 27 is any one of a rectangular hole, an S-shaped hole, a triangular hole, and a circular hole. For example, when an S-shaped hole is used, when wind passes through the air hole 27, it will push the inner wall of the S-shaped hole, so that the sponge cleaning block 21 as a whole is subjected to thrust in different directions. After combining with the stainless steel spring 25, it can vibrate more strongly. However, in this embodiment, a rectangular hole can be selected. If it is actually necessary to increase the vibration effect of the sponge cleaning block 21, holes of different shapes can be used, which will not be elaborated here.

[0061] In Example 2, Figures 5 to 7As shown, in some special areas, such as flood storage areas and other areas with high humidity, the surface humidity of the insulator 1 is high, and it is easy to absorb dust and other dirt, causing the outer surface of the insulator 1 to be relatively dirty, and the temperature of the insulator 1 will not rise to a level exceeding the set threshold. Therefore, the telescopic connector 31 can use any one of an electric push rod, an electric cylinder or an electric oil cylinder, or other electric push cleaning component 2 away from or close to the insulator 1. The mechanism realizes electric control, and the selection can be made according to actual needs.

[0062] In Example 3, reference Figures 1 to 4 As shown, taking into account the problem that the insulator 1 is prone to cracking due to the production process, the present invention is fixedly provided with an extrusion assembly 111 at the outer ring of the steel column 11, and a plurality of extrusion assemblies 111 are provided. The plurality of extrusion assemblies 111 are equidistantly distributed along the height direction of the steel column 11, and the extrusion assembly 111 is composed of a sheet structure surrounding the outer periphery of the steel column 11 and distributed at equal angles. The glue structure 14 is pre-loaded into the hollow hole in the middle of the porcelain sleeve 12. When the steel column 11 is inserted into the hollow hole, the bubbles doped in the glue structure 14 can be discharged upward from the gap between two adjacent sheet structures due to the pushing effect of the sheet structure. Since a plurality of sheet structures are provided above and below, the bubbles in the glue structure 14 can be discharged cleanly, ensuring that there are no bubbles or empty layers in the glue structure 14. When in use, the insulator 1 can maintain structural stability and is not prone to tilting and causing uneven force and cracking.

Claims

1. An anti-crack column type porcelain insulator, comprising an insulator (1), wherein the insulator (1) comprises a steel column (11), a porcelain sleeve (12) and an shed (13), wherein a plurality of sheds (13) are provided, and the plurality of sheds (13) are integrally arranged at the outer ring of the porcelain sleeve (12), wherein the steel column (11) is inserted into a hollow hole in the middle of the porcelain sleeve (12), and the steel column (11) and the porcelain sleeve (12) are fixed by a glue structure (14), characterized in that: An extrusion assembly (111) is fixedly arranged at the outer ring of the steel column (11), and the extrusion assembly (111) is provided with multiple groups, and the multiple extrusion assemblies (111) are distributed at equal distances along the height direction of the steel column (11), and the extrusion assembly (111) is composed of sheet structures surrounding the outer circumference of the steel column (11) and distributed at equal angles. The glue structure (14) is pre-installed in the hollow hole in the middle of the porcelain sleeve (12), and when the steel column (11) is inserted into the hollow hole, the bubbles mixed in the glue structure (14) are discharged from the gap between two adjacent sheet structures; The bottom of the insulator (1) is connected to a cleaning component (2) via a connecting component (3); the connecting component (3) is telescopically arranged; the cleaning component (2) is arranged on the side of the insulator (1); when the connecting component (3) is telescopically arranged, the cleaning component (2) is controlled to separate from or fit the insulator (1); the connecting component (3) and the insulator (1) are relatively rotatable, and the cleaning component (2) rotates along the outer ring of the insulator (1) under the action of wind force; The connecting assembly (3) comprises a telescopic connecting piece (31), a rotating sleeve (32) and a connecting frame (33); The connecting frame (33) is an annular structure, and the annular structure is rotatably sleeved on the outer ring of the lower end of the porcelain sleeve (12); The connecting frame (33) is fixedly connected to the outer ring of the annular structure, and the telescopic connecting member (31) is connected to the connecting frame (33); The cleaning assembly (2) comprises a second connecting plate (23), a first connecting plate (22) and a sponge cleaning block (21); the bottom of the second connecting plate (23) is connected to the end of the telescopic connecting member (31); the first connecting plate (22) is arranged on a side of the second connecting plate (23) close to the insulator (1); the sponge cleaning block (21) is fixedly arranged on the surface of the first connecting plate (22); and a tooth groove (26) corresponding to the shed (13) is arranged on a side of the sponge cleaning block (21) away from the first connecting plate (22); The rotating sleeve (32) rotates at the outer ring of the porcelain sleeve (12); A blade (24) is fixedly provided on a side of the second connecting plate (23) away from the first connecting plate (22); The sponge cleaning block (21) is provided with an air hole (27), and a plurality of the air holes (27) are provided. A stainless steel spring (25) is fixedly connected to a surface of the first connecting plate (22) away from the sponge cleaning block (21), and an end of the stainless steel spring (25) away from the first connecting plate (22) is fixedly connected to a surface of the second connecting plate (23). A plurality of the stainless steel springs (25) are provided, and the plurality of stainless steel springs (25) are distributed at equal distances.

2. The anti-crack post type porcelain insulator according to claim 1, characterized in that: The annular structure comprises two clamps connected to each other, both of which are semi-annular and fixed by screws.

3. The anti-crack post porcelain insulator according to claim 1, characterized in that: The telescopic connecting member (31) comprises a telescopic tube (311), a telescopic rod (312) and a memory metal strip (313); the telescopic tube (311) and the connecting frame (33) are fixedly connected; the telescopic rod (312) and the second connecting plate (23) are fixedly connected; one end of the telescopic rod (312) away from the second connecting plate (23) movably extends into the interior of the telescopic tube (311); one end of the memory metal strip (313) is fixedly connected to one end of the telescopic rod (312) movably extending into the interior of the telescopic tube (311); and the other end of the memory metal strip (313) is fixedly connected to the inner wall of the end of the telescopic tube (311) away from the telescopic rod (312).

4. The anti-crack post type porcelain insulator according to claim 3, characterized in that: The memory metal strip (313) is a nickel-titanium alloy memory metal, and the memory metal strip (313) is in a spring shape.

5. The anti-crack post porcelain insulator according to claim 1, characterized in that: The telescopic connecting member (31) is any one of an electric push rod, an electric cylinder or an electric oil cylinder.

6. The anti-crack post type porcelain insulator according to claim 1, characterized in that: The air hole (27) is any one of a rectangular hole, an S-shaped hole, a triangular hole, and a circular hole.

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