Insulator for overhead transmission line

Abstract

The invention discloses an insulator for an overhead transmission line, and relates to the technical field of insulators, the insulator comprises a fixed cylinder, the outer wall of the bottom of the fixed cylinder is fixedly connected with a liquid storage cylinder, the inner wall of the bottom of the liquid storage cylinder is fixedly connected with a bearing seat, and the circumferential inner wall of the bearing seat is fixedly connected with a fixed column; a connecting column is fixedly connected to the bottom of the fixing column, insulating assemblies distributed at equal intervals are arranged on the circumferential outer wall of the connecting column, and a pneumatic assembly used for driving the insulating assemblies to rotate is arranged at one end of the connecting column. The pneumatic assembly can stably rotate under wind adjustment, meanwhile, the pneumatic assembly can be matched with the oiling assembly to conduct oil dripping lubrication on the bearing seat in the rotating process, corrosion of the bearing seat and the fixing column is avoided, and meanwhile the situation that the bearing seat and the fixing column are frozen in cold seasons is avoided.

Description

Technical Field

[0001] The present invention relates to the technical field of insulators, and in particular to an insulator for overhead power transmission lines. Background Art

[0002] Insulators are a special type of insulating control that plays an important role in overhead transmission lines. For example, many suspended or disc-shaped insulators hanging at one end of a high-voltage power line connection tower are insulators. Their purpose is to increase the creepage distance. In overhead transmission lines, insulators are used to support the conductors, so that the conductors maintain a certain distance from supporting structures such as poles and towers to ensure the stability of the physical structure of the line. At present, dirty flashover, wind-induced grounding, and ice flashover are the three main reasons why insulators cause harm to the power grid. Dust is easily deposited on the surface of conventional insulators and is unevenly distributed on the insulator shed. Under adverse conditions such as fog, dew, and drizzle, dirty insulators may flash under low voltage.

[0003] After searching, the Chinese invention patent application with publication number CN103325499A discloses a rotary three-proof insulator, including a fixed handle, a suspension shaft, an insulator shed and a wire suspension handle, the fixed handle is mounted on the upper end of the upper suspension shaft, and the lower end of the upper suspension shaft is rotatably mounted in an upper rotating shaft; the wire suspension handle is mounted on the lower end of the lower suspension shaft, and the upper end of the lower hanging shaft is rotatably mounted in the lower rotating shaft; the upper rotating shaft and the lower rotating shaft are coaxially connected by a connecting shaft, and a rotating wind blade and an insulator shed are coaxially mounted on the connecting shaft between the upper rotating shaft and the lower rotating shaft.

[0004] Based on the existing technology, the above patent still has the following shortcomings: the several groups of rotating wind blades arranged on the suspension shaft have the same specifications and shapes, so they can only be driven by longitudinal or transverse airflow to rotate, and cannot achieve the effect that the wind flow in any direction can drive the wind blades to rotate well. At the same time, in the rainy season or cold season, the suspension shaft is prone to rust or ice freezing, making it difficult to rotate the suspension shaft. Therefore, an overhead transmission line insulator is urgently needed to solve the above problems. Summary of the invention

[0005] The purpose of the present invention is to solve the shortcomings of the prior art and propose an insulator for overhead power transmission lines. Its advantages are: the pneumatic assembly can receive all-round airflow in the air, and has a wider range of applications, ensuring that the pneumatic assembly can rotate stably under the regulation of wind. At the same time, during the rotation of the pneumatic assembly, the oiling assembly can be used to drip oil on the bearing seat, which not only avoids rust on the bearing seat and the fixing column, but also avoids freezing in cold seasons.

[0006] In order to achieve the above object, the present invention adopts the following technical solutions:

[0007] An insulator for an overhead power transmission line, comprising a fixing cylinder, a bottom outer wall of the fixing cylinder being fixedly connected to a liquid storage cylinder, a bottom inner wall of the liquid storage cylinder being fixedly connected to a bearing seat, a circumferential inner wall of the bearing seat being fixedly connected to a fixing column, a bottom of the fixing column being fixedly connected to a connecting column, an circumferential outer wall of the connecting column being provided with insulating components distributed at equal distances, and one end of the connecting column being provided with a pneumatic component for driving the insulating component to rotate;

[0008] The interior of the liquid storage cylinder is provided with a refueling assembly for lubricating the bearing seat;

[0009] The insulating component includes a first umbrella skirt, a second umbrella skirt is arranged at the bottom of the first umbrella skirt, the specification of the second umbrella skirt is smaller than that of the first umbrella skirt, the circumferential outer wall of the first umbrella skirt is provided with a ring ridge, the ring ridge is arranged vertically, and the circumferential outer wall of the second umbrella skirt is located on the inner side of the ring ridge.

[0010] Through the above technical scheme: since the second umbrella skirt is arranged at the bottom of the first umbrella skirt, it is possible to effectively avoid the situation where a vortex is generated at the bottom of the first umbrella skirt, causing the dust entrained in the air to adhere to its bottom. At the same time, the ring edge arranged on the outer wall of the first umbrella skirt can prevent bird feces, ice and snow and rain from falling on the top of the second umbrella skirt to cause bridging, thereby improving the pollution flashover resistance of the entire insulating assembly and meeting people's use needs.

[0011] The present invention is further configured as follows: a spoiler ring plate is fixedly connected to the bottom of the first umbrella skirt, the number of the spoiler ring plates is four, the angle between the spoiler ring plate and the first umbrella skirt is 70°-80°, the cross-section of one end of the spoiler ring plate away from the inner wall of the bottom of the first umbrella skirt is teardrop-shaped, one end of one group of the spoiler ring plates and one end of another spoiler ring plate form a ventilation gap, and the number of the ventilation gaps is four.

[0012] Through the above technical scheme: by arranging a spoiler ring plate between the first umbrella skirt and the second umbrella skirt, it is possible to prevent air from generating vortices at the angle between the first umbrella skirt and the second umbrella skirt. At the same time, the angle between the spoiler ring plate and the first umbrella skirt is 70°-80°, and the cross-section of the end of the spoiler ring plate away from the inner wall of the bottom of the first umbrella skirt is in the shape of a water drop, which can effectively increase the centripetal force of the first umbrella skirt when the insulating component rotates, and avoid wind deviation of the insulating component in strong airflow weather.

[0013] The present invention is further configured such that the pneumatic component includes a fixing frame fixedly connected to the connecting column, both ends of the fixing frame are fixedly connected to a shell, the shell is spherical, the circumferential outer wall and the bottom of the shell are provided with through grooves, the number of the through grooves provided on the circumferential outer wall of the shell is four groups, the inner wall of the through groove is fixedly connected to a connecting plate, the outer wall of one side of the connecting plate is fixedly connected to a blade, and the cross-section of the blade is V-shaped.

[0014] Through the above technical solution: when there is air flow around the transmission line, the air flow can blow the blades inside the shell so that it can drive the connecting column to rotate together. Since the shell is spherical and connecting plates and blades are provided on the four sides and the bottom, the shell can effectively receive wind from all directions around it to ensure the stability of the rotation of the entire shell.

[0015] The present invention is further configured such that an outer wall on one side of the connecting plate is provided with through holes distributed at equal distances.

[0016] Through the above technical solution: the utilization rate of the shell for wind force can be improved, ensuring that the shell rotates faster under the same wind force.

[0017] The present invention is further configured such that a circular ring tube is fixedly connected to the top outer wall of the fixing column, a gear plate is fixedly connected to the circumferential outer wall of the circular ring tube, and a gear fan is meshed on the gear plate.

[0018] Through the above technical solution: the gear plate can drive the gear fan meshing with it to rotate together, thereby providing a power source for the subsequent refueling components.

[0019] The present invention is further configured such that the circumferential outer wall of the gear fan is fixedly connected to a rotating disk, the top outer wall of the rotating disk is fixedly connected to a rotating rod, the circumferential outer wall of the rotating disk is fixedly connected to an inclined rod, and the end of the inclined rod away from the rotating disk is fixedly connected to a top ball.

[0020] Through the above technical solution: during the rotation of the rotating disk, the inclined rod and the top ball on the top of the rotating disk will also be driven to rotate together.

[0021] The present invention is further configured as follows: the refueling assembly includes a partition fixedly connected to the circumferential inner wall of the liquid storage cylinder, the partition and the liquid storage cylinder surround an oil storage chamber, the oil storage chamber is filled with lubricating oil, the top end of the rotating rod is rotatably connected to the bottom outer wall of the partition, the middle part of the partition is provided with a groove, the groove is hemispherical, the bottom inner wall of the groove is provided with a drainage hole, an iron ball is placed inside the groove, the top outer wall of the partition is fixedly connected to a fixed tube, the top inner wall of the fixed tube is fixedly connected to a spring, one end of the spring is fixedly connected to a sliding rod, one end of the sliding rod passes through the partition, the end of the sliding rod passing through the partition is fixedly connected to a magnetic ball, the magnetic ball and the iron ball attract each other, and the top ball conflicts with the magnetic ball.

[0022] Through the above technical solution: intermittent oiling and lubrication of the bearing seat and the fixed column is achieved, so as to avoid the bearing seat and the fixed column from rusting or freezing and being unable to rotate.

[0023] The present invention is further configured such that a guide groove is provided on the top outer wall of the fixing column, and the guide grooves are distributed in a circular shape with equal distances on the top outer wall of the fixing column.

[0024] Through the above technical solution: it is ensured that the lubricating oil can flow out along the outer wall of the fixed column.

[0025] The present invention is further configured such that a spiral groove is formed on the circumferential outer wall of the fixing column.

[0026] Through the above technical solution: in order to keep the fixing column and the bearing seat located below in a lubricated state.

[0027] The present invention is further configured such that lubricating oil is contained inside a fixed cylinder located below the pneumatic component, an oil inlet hole is opened on an outer wall of one side of the fixed cylinder, a sealing plug is connected to the internal thread of the oil inlet hole, and one end of the two groups of fixed cylinders are fixedly connected with a fixing ear.

[0028] Through the above technical solution: the oil sealing of the fixed column and the bearing seat is achieved, thereby preventing the fixed column and the bearing seat from rusting or freezing.

[0029] The beneficial effects of the present invention are:

[0030] 1. In the present invention, when the insulator is suspended on the overhead transmission line and there is airflow around the transmission line, the airflow can blow the blades inside the shell so that it can drive the connecting column to rotate together. Since the shell is spherical and the four sides and the bottom are provided with connecting plates and blades, the shell can effectively receive wind from all directions around to ensure the stability of the rotation of the entire shell. When the insulating component rotates, the pollutants adhered to the first shed and the second shed will be subjected to centrifugal force and thus thrown off from the surface thereof, thereby ensuring the cleanliness of the surfaces of the first shed and the second shed.

[0031] 2. The present invention realizes continuous lubrication of the bearing seat and the fixed column by providing an oiling assembly. When the top ball gradually moves away from the magnetic ball as the rotating disk rotates, the spring in the compressed state at the top of the slide rod will immediately reset and pop the magnetic ball downward again. At this time, the magnetic ball is away from the iron ball, and there is no attraction around the iron ball, so it is reset to the center position of the groove by gravity, completing the sealing of the drainage hole.

[0032] 3. In the present invention, since the second shed is arranged at the bottom of the first shed, it is possible to effectively avoid the situation where a vortex is generated at the bottom of the first shed, causing the sand and dust entrained in the air to adhere to the bottom thereof. At the same time, the ring edge arranged on the outer wall of the first shed can prevent bird feces, ice and snow, and rain from falling on the top of the second shed to cause bridging, thereby improving the pollution flashover resistance of the entire insulating assembly. BRIEF DESCRIPTION OF THE DRAWINGS

[0033] Figure 1 This is a schematic diagram of the overall structure of an insulator for an overhead power transmission line proposed by the present invention;

[0034] Figure 2 An insulator for overhead transmission line proposed by the present invention Figure 1 A schematic diagram of the enlarged structure at A in the middle;

[0035] Figure 3 A schematic diagram of a half-section plan structure of an insulator for an overhead power transmission line proposed by the present invention;

[0036] Figure 4 An insulator for overhead transmission line proposed by the present invention Figure 3 A schematic diagram of the enlarged structure at B in the middle;

[0037] Figure 5 An insulator for overhead transmission line proposed by the present invention Figure 3 Schematic diagram of the enlarged structure at C in the middle;

[0038] Figure 6 An insulator for overhead transmission line proposed by the present invention Figure 3 Schematic diagram of the enlarged structure at D in the middle;

[0039] Figure 7 A schematic diagram of the overall structure of an insulating assembly of an insulator for an overhead power transmission line proposed by the present invention;

[0040] Figure 8 A schematic diagram of the meshing structure of a gear plate and a gear fan of an insulator for an overhead power transmission line proposed by the present invention;

[0041] Fig. 9 The present invention is a bottom view structural schematic diagram of a pneumatic assembly of an insulator for an overhead power transmission line.

[0042] In the figure: 1, fixed cylinder; 2, liquid storage cylinder; 3, insulating component; 3001, first umbrella skirt; 3002, second umbrella skirt; 3003, ring edge; 3004, spoiler ring plate; 3005, ventilation gap; 4, pneumatic component; 4001, fixed frame; 4002, shell; 4003, through groove; 4004, connecting plate; 4005, blade; 4006, through hole; 5, connecting column; 6, partition; 7, groove; 8, drainage hole; 9, iron ball; 10, fixed tube; 11, spring; 12, slide rod; 13, magnetic ball; 14, inclined rod; 15, top ball; 16, rotating disk; 17, rotating rod; 18, fixed column; 19, bearing seat; 20, sealing plug; 21, fixed ear; 22, gear fan; 23, gear plate; 24, guide groove; 25, spiral groove; 26, annular tube. DETAILED DESCRIPTION

[0043] The technical solution of this patent is further described in detail below in conjunction with specific implementation methods. The embodiments of this patent are described in detail below, and examples of the embodiments are shown in the accompanying drawings, where the same or similar reference numerals throughout represent the same or similar elements or elements with the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain this patent, and cannot be understood as limiting this patent.

[0044] Reference Figure 1-Figure 9 An insulator for an overhead power transmission line, comprising a fixed cylinder 1, a liquid storage cylinder 2 is fixedly connected to the bottom outer wall of the fixed cylinder 1, a bearing seat 19 is fixedly connected to the bottom inner wall of the liquid storage cylinder 2, a fixed column 18 is fixedly connected to the circumferential inner wall of the bearing seat 19, a connecting column 5 is fixedly connected to the bottom of the fixed column 18, an insulating component 3 distributed at equal distances is arranged on the circumferential outer wall of the connecting column 5, and a pneumatic component 4 for driving the insulating component 3 to rotate is arranged at one end of the connecting column 5;

[0045] The interior of the liquid storage cylinder 2 is provided with a refueling assembly for lubricating the bearing seat 19;

[0046] The insulating component 3 includes a first umbrella skirt 3001, a second umbrella skirt 3002 is arranged at the bottom of the first umbrella skirt 3001, the specification of the second umbrella skirt 3002 is smaller than the first umbrella skirt 3001, and the circumferential outer wall of the first umbrella skirt 3001 is provided with an annular ridge 3003, the annular ridge 3003 is arranged vertically, and the circumferential outer wall of the second umbrella skirt 3002 is located on the inner side of the annular ridge 3003. Since the second umbrella skirt 3002 is arranged at the bottom of the first umbrella skirt 3001, it is possible to effectively avoid the situation where a vortex is generated at the bottom of the first umbrella skirt 3001, causing the sand and dust entrained in the air to adhere to its bottom. At the same time, the annular ridge 3003 arranged on the outer wall of the first umbrella skirt 3001 can prevent bird pollution, ice and snow and rain from falling on the top of the second umbrella skirt 3002 to cause bridging, thereby improving the pollution flashover resistance of the entire insulating component 3 and meeting people's use needs.

[0047] In order to prevent the insulation component 3 from being deflected by wind in strong airflow weather, refer to Figure 5The bottom of the first umbrella skirt 3001 is fixedly connected with a spoiler ring plate 3004, the number of the spoiler ring plates 3004 is four groups, the angle between the spoiler ring plates 3004 and the first umbrella skirt 3001 is 70°-80°, the cross section of one end of the spoiler ring plate 3004 away from the bottom inner wall of the first umbrella skirt 3001 is teardrop-shaped, one end of one group of spoiler ring plates 3004 and one end of another spoiler ring plate 3004 form a ventilation gap 3005, the number of the ventilation gap 3005 is four groups, through the first umbrella skirt 3001 A spoiler ring plate 3004 is arranged between the first umbrella skirt 3001 and the second umbrella skirt 3002, which can prevent air from generating vortices at the angle between the first umbrella skirt 3001 and the second umbrella skirt 3002. At the same time, the angle between the spoiler ring plate 3004 and the first umbrella skirt 3001 is 70°-80°, and the cross-section of the end of the spoiler ring plate 3004 away from the bottom inner wall of the first umbrella skirt 3001 is in the shape of a water drop, which can effectively increase the centripetal force of the first umbrella skirt 3001 when the insulating component 3 rotates, and avoid wind deviation of the insulating component 3 in strong airflow weather.

[0048] In order to be able to utilize the omnidirectional wind flow, refer to Fig. 9 The pneumatic assembly 4 includes a fixing frame 4001 fixedly connected to the connecting column 5, and both ends of the fixing frame 4001 are fixedly connected to a shell 4002, the shell 4002 is spherical, and the outer wall and the bottom of the shell 4002 are provided with through grooves 4003, and the number of through grooves 4003 provided on the outer wall of the shell 4002 is four groups, and the inner wall of the through groove 4003 is fixedly connected to a connecting plate 4004, and the outer wall of one side of the connecting plate 4004 is fixedly connected to a blade 4005, and the blade 4 The cross section of 005 is V-shaped. When the insulator is hung on an overhead transmission line and there is airflow around the transmission line, the airflow can blow the blades 4005 inside the shell 4002, thereby driving the connecting column 5 to rotate together. Since the shell 4002 is spherical and connecting plates 4004 and blades 4005 are provided on the four sides and the bottom, the shell 4002 can effectively receive wind from all directions around it to ensure the stability of the rotation of the entire shell 4002.

[0049] In order to improve the utilization rate of wind energy by the pneumatic component 4, refer to Fig. 9 The outer wall of one side of the connecting plate 4004 is provided with through holes 4006 distributed at equal distances. The through holes 4006 provided on the outer wall of the connecting plate 4004 can enable airflow to form convection between the multiple through grooves 4003, thereby improving the utilization rate of wind force by the shell 4002 and ensuring that the shell 4002 rotates faster under the same wind force.

[0050] In order to ensure that the gear fan 22 can rotate stably, refer to Figure 8The top outer wall of the fixed column 18 is fixedly connected with a circular tube 26, and the circumferential outer wall of the circular tube 26 is fixedly connected with a gear plate 23, and the gear plate 23 is meshed with a gear fan 22. During the rotation of the fixed column 18, the gear plate 23 on the top can be driven to rotate, and the gear plate 23 can drive the gear fan 22 meshed with it to rotate together, thereby providing a power source for the subsequent refueling components.

[0051] In order to allow the oil filling assembly to drain properly, refer to Figure 4 The circumferential outer wall of the gear fan 22 is fixedly connected to the rotating disk 16, the top outer wall of the rotating disk 16 is fixedly connected to the rotating rod 17, the circumferential outer wall of the rotating disk 16 is fixedly connected to the inclined rod 14, and the end of the inclined rod 14 away from the rotating disk 16 is fixedly connected to the top ball 15. Since the gear fan 22 is fan-shaped, when the gear disk 23 rotates one circle, the entire rotating disk 16 only rotates the distance of one gear fan 22. During the rotation of the rotating disk 16, the inclined rod 14 and the top ball 15 on its top will also be driven to rotate together.

[0052] In order to achieve intermittent lubrication of the bearing seat 19 and the fixed column 18, refer to Figure 4 The refueling assembly includes a partition 6 fixedly connected to the circumferential inner wall of the liquid storage cylinder 2, the partition 6 and the liquid storage cylinder 2 surround an oil storage chamber, the oil storage chamber is filled with lubricating oil, the top of the rotating rod 17 is rotatably connected to the bottom outer wall of the partition 6, a groove 7 is arranged in the middle of the partition 6, the groove 7 is hemispherical, a drainage hole 8 is arranged on the bottom inner wall of the groove 7, an iron ball 9 is placed inside the groove 7, a fixed tube 10 is fixedly connected to the top outer wall of the partition 6, a spring 11 is fixedly connected to the top inner wall of the fixed tube 10, one end of the spring 11 is fixedly connected to a slide rod 12, one end of the slide rod 12 passes through the partition 6, and the end of the slide rod 12 passing through the partition 6 is fixedly connected to a magnetic ball 13, the magnetic ball 13 and the iron ball 9 attract each other, the top ball 15 conflicts with the magnetic ball 13, as the gear plate 23 continues to rotate until the top ball 15 contacts the magnetic ball 13 and lifts it up, the magnetic The ball 13 will gradually approach the iron ball 9 located inside the groove 7, thereby attracting the iron ball 9. When the iron ball 9 is attracted by the magnetic ball 13, it will leave the drainage hole 8. At this time, the lubricating oil inside the oil storage chamber will drip out from the drainage hole 8, thereby achieving continuous lubrication of the bearing seat 19 and the fixed column 18. When the top ball 15 gradually moves away from the magnetic ball 13 as the rotating disk 16 rotates, the spring 11 in the compressed state at the top of the slide bar 12 will immediately reset and pop the magnetic ball 13 downward again to reset it. At this time, the magnetic ball 13 is away from the iron ball 9, and there is no attraction around the iron ball 9, so it is reset to the center position of the groove 7 by gravity, completing the sealing of the drainage hole 8, and achieving intermittent oiling and lubrication of the bearing seat 19 and the fixed column 18, avoiding the bearing seat 19 and the fixed column 18 from rusting or freezing and being unable to rotate.

[0053] In order to prevent the lubricating oil from sliding off the surface of the fixing column 18, refer to Figure 8 A guide groove 24 is opened on the top outer wall of the fixed column 18, and the guide grooves 24 are distributed in an equidistant circular pattern on the top outer wall of the fixed column 18. The dripping lubricating oil falls on the top outer wall of the fixed column 18 and flows out through the guide grooves 24, ensuring that the lubricating oil can flow out along the outer wall of the fixed column 18.

[0054] In order to make the lubricating oil flow evenly along the outer wall of the fixing column 18, refer to Figure 8 A spiral groove 25 is provided on the circumferential outer wall of the fixing column 18 to ensure that the lubricating oil can flow evenly over the surface of the fixing column 18 .

[0055] In order to keep the fixing column 18 and the bearing seat 19 at the bottom lubricated, refer to Figure 6 The fixed cylinder 1 located below the pneumatic component 4 contains lubricating oil, an oil inlet hole is opened on the outer wall of one side of the fixed cylinder 1, and a sealing plug 20 is connected to the internal thread of the oil inlet hole. One end of the two sets of fixed cylinders 1 are fixedly connected with a fixing ear 21. By immersing the fixed column 18 and the bearing seat 19 in the lubricating oil, the oil sealing of the fixed column 18 and the bearing seat 19 is achieved, thereby preventing the fixed column 18 and the bearing seat 19 from rusting or freezing.

[0056] Working principle: When the insulator is hung on the overhead transmission line and there is airflow around the transmission line, the airflow can blow the blades 4005 inside the shell 4002, so that it can drive the connecting column 5 to rotate together. Since the shell 4002 is spherical and the four sides and the bottom are provided with connecting plates 4004 and blades 4005, the shell 4002 can effectively receive wind from all directions around to ensure the rotation stability of the entire shell 4002. At the same time, the through holes 4006 opened on the outer wall of the connecting plate 4004 can make the airflow form convection between the multiple through grooves 4003, so as to improve the utilization rate of the shell 4002 for wind power and ensure The housing 4002 can rotate faster under the same wind force. The rotation of the housing 4002 can drive the connecting column 5 and the multiple insulating components 3 to rotate together. When the insulating components 3 rotate, the pollutants (dust, impurities, ice and snow) adhering to the first umbrella skirt 3001 and the second umbrella skirt 3002 will be thrown off from their surfaces by the centrifugal force, thereby ensuring the cleanliness of the surfaces of the first umbrella skirt 3001 and the second umbrella skirt 3002. During the rotation of the fixed column 18, the gear plate 23 on the top thereof can be driven to rotate, and the gear fan 22 meshing therewith can be driven to rotate together through the gear plate 23. Since the gear fan 22 is fan-shaped, the gear plate 2 When the rotating disk 16 rotates one circle, it rotates only the distance of one tooth sector 22. During the rotation of the rotating disk 16, the inclined rod 14 and the top ball 15 on the top thereof will also be driven to rotate together. As the gear disk 23 continues to rotate, until the top ball 15 contacts and lifts the magnetic ball 13, the magnetic ball 13 will gradually approach the iron ball 9 located inside the groove 7, thereby attracting the iron ball 9. When the iron ball 9 is attracted by the magnetic ball 13, it will leave from the drainage hole 8. At this time, the lubricating oil in the oil storage chamber will drip out from the drainage hole 8, and the dripping lubricating oil will fall on the top outer wall of the fixed column 18 and slide down along the spiral groove 25 through the diversion of the guide groove 24. , until the lubricating oil contacts the bearing seat 19, thereby realizing continuous lubrication of the bearing seat 19 and the fixed column 18. When the top ball 15 gradually moves away from the magnetic ball 13 as the rotating disk 16 rotates, the spring 11 in the compressed state at the top of the slide rod 12 will immediately reset and pop the magnetic ball 13 downward again to reset it. At this time, the magnetic ball 13 is away from the iron ball 9, and there is no attraction around the iron ball 9, so it is reset to the center position of the groove 7 again by gravity, completing the sealing of the drainage hole 8, and realizing intermittent oiling and lubrication of the bearing seat 19 and the fixed column 18, avoiding the bearing seat 19 and the fixed column 18 from rusting or freezing and being unable to rotate.

[0057] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical scheme and inventive concept of the present invention within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

Claims

1. An insulator for an overhead power transmission line, comprising a fixing tube (1), characterized in that: The bottom outer wall of the fixed cylinder (1) is fixedly connected to a liquid storage cylinder (2), the bottom inner wall of the liquid storage cylinder (2) is fixedly connected to a bearing seat (19), the circumferential inner wall of the bearing seat (19) is fixedly connected to a fixed column (18), the bottom of the fixed column (18) is fixedly connected to a connecting column (5), the circumferential outer wall of the connecting column (5) is provided with insulating components (3) distributed at equal distances, and one end of the connecting column (5) is provided with a pneumatic component (4) for driving the insulating component (3) to rotate; The liquid storage cylinder (2) is provided with a refueling assembly for lubricating the bearing seat (19); The insulating component (3) comprises a first umbrella skirt (3001), a second umbrella skirt (3002) is arranged at the bottom of the first umbrella skirt (3001), the specification of the second umbrella skirt (3002) is smaller than that of the first umbrella skirt (3001), the circumferential outer wall of the first umbrella skirt (3001) is provided with a ring edge (3003), the ring edge (3003) is arranged vertically, and the circumferential outer wall of the second umbrella skirt (3002) is located on the inner side of the ring edge (3003).

2. An insulator for an overhead power transmission line according to claim 1, characterized in that: A spoiler ring plate (3004) is fixedly connected to the bottom of the first umbrella skirt (3001), the number of the spoiler ring plates (3004) is four groups, the angle between the spoiler ring plates (3004) and the first umbrella skirt (3001) is 70°-80°, the cross section of one end of the spoiler ring plate (3004) away from the bottom inner wall of the first umbrella skirt (3001) is in a water drop shape, one end of one group of the spoiler ring plates (3004) and one end of another spoiler ring plate (3004) form a ventilation gap (3005), and the number of the ventilation gaps (3005) is four groups.

3. An insulator for an overhead power transmission line according to claim 2, characterized in that: The pneumatic component (4) includes a fixing frame (4001) fixedly connected to the connecting column (5), and both ends of the fixing frame (4001) are fixedly connected to a shell (4002), the shell (4002) is spherical, and the circumferential outer wall and the bottom of the shell (4002) are provided with through grooves (4003), the number of the through grooves (4003) provided on the circumferential outer wall of the shell (4002) is four groups, the inner wall of the through groove (4003) is fixedly connected to a connecting plate (4004), and the outer wall of one side of the connecting plate (4004) is fixedly connected to a blade (4005), and the cross-section of the blade (4005) is V-shaped.

4. An insulator for an overhead power transmission line according to claim 3, characterized in that: One side outer wall of the connecting plate (4004) is provided with through holes (4006) distributed at equal distances.

5. An insulator for an overhead power transmission line according to claim 4, characterized in that: The top outer wall of the fixed column (18) is fixedly connected to a circular ring tube (26), the circumferential outer wall of the circular ring tube (26) is fixedly connected to a gear plate (23), and the gear plate (23) is meshed with a gear sector (22).

6. An overhead power transmission line insulator according to claim 5, characterized in that: The circumferential outer wall of the gear fan (22) is fixedly connected to a rotating disk (16), the top outer wall of the rotating disk (16) is fixedly connected to a rotating rod (17), the circumferential outer wall of the rotating disk (16) is fixedly connected to an inclined rod (14), and one end of the inclined rod (14) away from the rotating disk (16) is fixedly connected to a top ball (15).

7. An overhead power transmission line insulator according to claim 6, characterized in that: The refueling assembly comprises a partition (6) fixedly connected to the inner wall of the circumference of the liquid storage cylinder (2), the partition (6) and the liquid storage cylinder (2) enclose an oil storage chamber, the oil storage chamber is filled with lubricating oil, the top end of the rotating rod (17) is rotatably connected to the bottom outer wall of the partition (6), the middle of the partition (6) is provided with a groove (7), the groove (7) is hemispherical, the bottom inner wall of the groove (7) is provided with a drainage hole (8), the inside of the groove (7) is provided with an iron ball (9), and the The top outer wall of the partition (6) is fixedly connected to a fixed tube (10), the top inner wall of the fixed tube (10) is fixedly connected to a spring (11), one end of the spring (11) is fixedly connected to a slide rod (12), one end of the slide rod (12) passes through the partition (6), and the end of the slide rod (12) passing through the partition (6) is fixedly connected to a magnetic ball (13), the magnetic ball (13) and the iron ball (9) attract each other, and the top ball (15) is in conflict with the magnetic ball (13).

8. An insulator for an overhead power transmission line according to claim 7, characterized in that: The top outer wall of the fixed column (18) is provided with guide grooves (24), and the guide grooves (24) are distributed in a circular shape at equal distances on the top outer wall of the fixed column (18).

9. An insulator for an overhead power transmission line according to claim 8, characterized in that: A spiral groove (25) is formed on the circumferential outer wall of the fixing column (18).

10. An insulator for an overhead power transmission line according to claim 9, characterized in that: Lubricating oil is contained in the fixed cylinder (1) located below the pneumatic component (4), an oil inlet hole is provided on one side outer wall of the fixed cylinder (1), a sealing plug (20) is connected to the inner thread of the oil inlet hole, and one end of the two groups of fixed cylinders (1) are fixedly connected to a fixing ear (21).

Images