Lightning protection insulator

Abstract

The invention discloses a lightning protection insulator, and relates to the technical field of insulators, the lightning protection insulator comprises an insulator main body, the upper end of the insulator main body is provided with a mounting base, the lower end of the insulator main body is provided with a steel foot bolt, the circumferential surface of the mounting base is rotatably provided with a rotating ring through a bearing, and the upper end of the mounting base is provided with an insulating shield. A high-voltage wire is arranged between the mounting base and the insulating protective cover in a penetrating mode, two multi-connecting rods in the dust removal device can drive multiple sets of dust removal mechanisms to rotate, and first scraping rods in the dust removal mechanisms are attached to the upper ends of composite umbrella groups; at the moment, the first scraping rod can clean dust, salt mist, industrial pollutants and the like at the upper end of the composite umbrella group, and the situation that the dust, the salt mist, the industrial pollutants and the like stay on the composite umbrella group for a long time, the insulation performance of the composite umbrella group is reduced, partial discharge is caused, creepage traces are formed, and finally flashover or short-circuit accidents possibly occur is avoided; and the safety of the equipment is effectively improved.

Description

Technical Field

[0001] The invention relates to the technical field of insulators, and in particular to a lightning protection insulator. Background Art

[0002] Insulators are devices installed between conductors of different potentials or between conductors and grounded components, which can withstand voltage and mechanical stress. There are many types of insulators with different shapes. Although the structures and appearances of different types of insulators are quite different, they are all composed of two major parts: insulating parts and connecting fittings. Insulators are a special type of insulating control component that can play an important role in overhead transmission lines. In the early years, insulators were mostly used for electric poles, and gradually developed into a high-type high-voltage electric wire connection tower with many disc-shaped insulators hung at one end to increase the creepage distance. The current lightning protection insulators are found to have at least the following technical problems: First, there is no dust cleaning mechanism on the composite umbrella group of the current insulator, so when dust, salt spray, industrial pollutants, etc. accumulate on its surface, its insulation performance will be reduced, causing local discharge and forming creepage traces, which may eventually develop into flashover or short circuit accidents.

[0003] Second, the composite umbrella group of the current insulator is not equipped with a mechanism for clearing rainwater, which can easily cause the rainwater to form a chain and cause rain flash, reducing the safety of the insulator when in use.

[0004] Third, current insulators are exposed to outdoor environments for a long time when in use and will be affected by natural factors such as ultraviolet radiation, high temperature, and humidity. These factors may accelerate the aging process of insulator materials, and long-term exposure may affect their performance and service life. Summary of the invention

[0005] 1. Technical issues to be resolved In view of the deficiencies in the prior art, the present invention provides a lightning protection insulator to solve the above-mentioned technical problems.

[0006] (II) Technical solution To achieve the above objectives, the present invention is implemented through the following technical solutions: A lightning protection insulator comprises an insulator body, a mounting base is provided at the upper end of the insulator body, a steel foot bolt is provided at the lower end of the insulator body, a rotating ring is rotatably installed on the circumferential surface of the mounting base through a bearing, an insulating shield is provided at the upper end of the mounting base, a high-voltage line is penetrated between the mounting base and the insulating shield, at least three composite umbrella groups are provided on the circumferential surface of the insulator body, each of the composite umbrella groups is provided with a cleaning mechanism, the cleaning mechanism comprises a first circular ring, two first scraping rods are fixedly installed at an equal distance at the lower end of the first circular ring, a third circular ring is sleeved on the insulating shield, a ball groove is opened at the upper end of the third circular ring, two support rods are rotatably installed in the ball groove opened by the third circular ring, top protective covers are fixedly installed on the upper ends of the two support rods, and four second fan blades are fixedly installed on the lower end of the top protective cover.

[0007] Preferably: the lower ends of the two first scraping rods are both fitted on the upper surface of the composite umbrella group, fixed blocks are fixedly installed on both side ends of the first circular ring, a multi-connecting rod is fixedly connected between the two fixed blocks in each group of cleaning mechanisms, and a second circular ring is fixedly installed through the circumferential surface of the two multi-connecting rods.

[0008] Preferably: four first fan blades are fixedly installed on the circumferential surface of the second ring at equal intervals, a connecting bracket is fixedly installed between the upper ends of the two multi-connecting rods, the connecting bracket is fixedly installed on the lower end of the rotating ring, and locking screws are installed on both sides of the circumferential surface of the third ring through threads.

[0009] Preferably: the two locking screws are both fitted on the circumferential surface of the insulating shield, a round rod is fixedly installed on the upper end of the insulating shield, a second scraping rod is fixedly installed on the upper end of the round rod, the round rod is rotatably installed on the top protective cover, and the second scraping rod is fitted on the upper surface of the top protective cover and rotates.

[0010] (III) Beneficial effects 1. The two multi-connecting rods in the present invention will drive multiple groups of cleaning mechanisms to rotate, and the first scraping rod in the cleaning mechanism is attached to the upper end of the composite umbrella group, so at this time the first scraping rod can clean the dust, salt spray, industrial pollutants, etc. on the upper end of the composite umbrella group, to prevent these dust, salt spray, industrial pollutants, etc. from staying on the composite umbrella group for too long, reducing its insulation performance, causing local discharge, forming creepage traces, and eventually developing into flashover or short circuit accidents, effectively improving the safety of the equipment.

[0011] Second: The present invention arranges a first scraping rod and a second scraping rod on the device for cleaning the composite umbrella group and the top protective cover, so that the composite umbrella group and the top protective cover on the device can clean the rainwater on the upper end even after raining, thereby preventing the rainwater on the dense composite umbrella group and the top protective cover from forming a chain and causing rain flash. The device improves the efficiency of rainwater shedding through optimized design.

[0012] 3. The present invention provides a top protective cover on the device, and the material used is ceramic that can effectively prevent ultraviolet rays. Therefore, the device can be used for a long time without being exposed to the ultraviolet rays of the sun for a long time to the mounting base and the insulating shield, thereby affecting its performance and service life.

[0013] Fourth: In the present invention, when the top protective cover rotates, the round rod and the second scraping rod remain stationary, so the second scraping rod can scrape the upper surface of the top protective cover, thereby cleaning the top protective cover and avoiding excessive dust and garbage accumulation on the upper end of the top protective cover after long-term use, thereby effectively avoiding an increase in the weight of the top protective cover and a reduction in the mechanical strength of the insulator. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] The above description is only an overview of the technical solution of the present invention. In order to more clearly understand the technical means of the present invention and implement it according to the contents of the specification, the following is a detailed description of the preferred embodiments of the present invention in conjunction with the accompanying drawings.

[0015] Figure 1 It is a structural diagram of the present invention as a whole; Figure 2 It is a structural diagram of the insulator body of the present invention; Figure 3 It is a structural diagram of the composite umbrella group of the present invention; Figure 4 is a structural diagram of the first fan blade of the present invention; Figure 5 It is a structural diagram of the top protective cover of the present invention; Figure 6 is a structural diagram of the third ring of the present invention; Figure 7 It is a structural diagram of the support rod of the present invention.

[0016] Legend: 11. First circular ring; 12. Fixed block; 13. First scraper rod; 14. Multi-connecting rod; 15. First blade; 16. Second circular ring; 17. Connecting bracket; 18. Rotating ring; 21. Insulator body; 22. Steel foot bolt; 23. High-voltage wire; 24. Mounting base; 25. Insulating shield; 26. Round rod; 27. Second scraper rod; 28. Composite umbrella group; 31. Third circular ring; 32. Support rod; 33. Top protective cover; 34. Second blade; 35. Ball groove; 36. Locking screw. DETAILED DESCRIPTION

[0017] The following embodiments of the present invention are described in further detail in conjunction with the accompanying drawings and examples. The following examples are used to illustrate the present invention, but are not intended to limit the scope of the present invention.

[0018] Embodiment: Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 , Figure 6 and Figure 7As shown, in view of the problems existing in the prior art, the present invention provides a lightning protection insulator, including an insulator body 21, a mounting base 24 is provided at the upper end of the insulator body 21, a steel foot bolt 22 is provided at the lower end of the insulator body 21, a rotating ring 18 is rotatably mounted on the circumferential surface of the mounting base 24 through a bearing, an insulating shield 25 is provided at the upper end of the mounting base 24, a high-voltage line 23 is penetrated and arranged between the mounting base 24 and the insulating shield 25, and at least three composite umbrella groups 28 are provided on the circumferential surface of the insulator body 21, each composite umbrella group 28 is provided. The umbrella group 28 is provided with a dust cleaning mechanism, which includes a first ring 11, and two first scraping rods 13 are fixedly installed at the lower end of the first ring 11 at equal distances. A third ring 31 is sleeved on the insulating shield 25, and a ball groove 35 is opened at the upper end of the third ring 31. Two support rods 32 are rotatably installed in the ball groove 35 opened in the third ring 31. The upper ends of the two support rods 32 are fixedly installed with a top protective cover 33, and the lower end of the top protective cover 33 is fixedly installed with four second blades 34. The device is connected by a steel foot bolt 22 It is installed on a high-voltage power pole to prevent the current from flowing through a non-conductive path (for example, from the conductor to the pole tower or the ground) for the high-voltage line 23, thereby ensuring the safe transmission of high-voltage electric energy and preventing short circuits and electric shock accidents. When the device is installed in the air, the first fan blade 15 at its upper end will be affected by wind force. Under the action of wind force, the four first fan blades 15 will be driven to rotate, and the four first fan blades 15 will drive the second ring 16 to rotate, and the second ring 16 will drive the two multi-connecting rods 14 to rotate. The two multi-connecting rods 14 in the present invention will drive multiple groups of cleaning mechanisms to rotate, and the first scraping rod 13 in the cleaning mechanism is attached to the upper end of the composite umbrella group 28, so at this time the first scraping rod 13 can clean the dust, salt spray, industrial pollutants, etc. on the upper end of the composite umbrella group 28 to prevent these dust, salt spray, industrial pollutants, etc. from staying on the composite umbrella group 28 for too long, reducing its insulation performance, causing local discharge, forming creepage traces, and eventually developing into flashover or short circuit accidents, effectively improving the safety of the device.

[0019] The lower ends of the two first scraping rods 13 are both fitted on the upper surface of the composite umbrella group 28, the two side ends of the first ring 11 are fixedly installed with fixed blocks 12, and the two fixed blocks 12 in each group of dust cleaning mechanisms are fixedly connected with multiple connecting rods 14, and the circumferential surfaces of the two multiple connecting rods 14 are penetrated and fixedly installed with second rings 16, and the circumferential surface of the second ring 16 is equidistantly fixedly installed with four first fan blades 15, and the upper ends of the two multiple connecting rods 14 are fixedly installed with a connecting bracket 17, and the connecting bracket 17 is fixedly installed at the lower end of the rotating ring 18, and the circumferential surface of the third ring 31 is penetrated and installed with screw threads on both sides. The locking screw 36 is provided on the top protective cover 33 of the insulating shield 25 in the device, and the material of the top protective cover 33 is anti-ultraviolet ceramic. When the top protective cover 33 wraps the insulating shield 25 and the mounting base 24 inside, the mounting base 24 and the insulating shield 25 can be prevented from being directly exposed to the sun. The present invention provides a top protective cover 33 on the device, and the material of the top protective cover 33 is ceramic that can effectively prevent ultraviolet rays. Therefore, the device can be used for a long time without being exposed to the ultraviolet rays of the sun on the mounting base 24 and the insulating shield 25, thereby affecting its performance and service life.

[0020] The two locking screws 36 are both fitted on the circumferential surface of the insulating shield 25, and a round rod 26 is fixedly installed on the upper end of the insulating shield 25, and a second scraping rod 27 is fixedly installed on the upper end of the round rod 26. The round rod 26 is rotatably installed on the top protective cover 33, and the second scraping rod 27 is fitted on the upper surface of the top protective cover 33 and rotates. At the same time, the top protective cover 33 on the device can also be rotated by blowing the second fan blade 34 under the action of wind force, and the two support rods 32 are rotatably installed on the third ring 31. The ball groove 35 provided on the third ring 31 is connected to the support rod 32 in the same manner as the bearing in the prior art, and a ball is arranged inside it, so that the top protective cover 33 can rotate with the wind. When the top protective cover 33 rotates, the round rod 26 and the second scraping rod 2 7 remains stationary, so at this time the second scraper rod 27 can scrape the upper surface of the top protective cover 33, thereby cleaning the top protective cover 33 and avoiding excessive dust and garbage accumulation on the upper end of the top protective cover 33 after long-term use, thereby effectively avoiding the weight increase of the top protective cover 33, which leads to a decrease in the mechanical strength of the insulator. The present invention arranges the first scraper rod 13 and the second scraper rod 27 on the device for cleaning the composite umbrella group 28 and the top protective cover 33, so that the composite umbrella group 28 and the top protective cover 33 on the device can be cleaned of rainwater on their upper ends even after raining, avoiding the rainwater on the dense composite umbrella group 28 and the top protective cover 33 from being connected into a chain and causing rain flash. The device improves the efficiency of rainwater shedding through optimized design.

[0021] Working principle: In the first step, the device is installed on the high-voltage power pole through the steel foot bolts 22, which prevents the current from flowing through the non-conductive path (for example, from the wire to the pole tower or the ground) of the high-voltage line 23, thereby ensuring the safe transmission of high-voltage electric energy and preventing short circuits and electric shock accidents. When the device is installed in the air, the first fan blade 15 at its upper end will be affected by the wind. Under the action of the wind, the four first fan blades 15 will be driven to rotate, and the four first fan blades 15 will drive the second ring 16 to rotate, and the second ring 16 will drive the two multi-connecting rods 14 to rotate. When the composite umbrella group 28 rotates, the two multi-connecting rods 14 in the present invention will drive the multiple groups of cleaning mechanisms to rotate, and the first scraping rod 13 in the cleaning mechanism is attached to the upper end of the composite umbrella group 28, so at this time the first scraping rod 13 can clean the dust, salt spray, industrial pollutants, etc. on the upper end of the composite umbrella group 28 to prevent these dust, salt spray, industrial pollutants, etc. from staying on the composite umbrella group 28 for too long, reducing its insulation performance, causing local discharge, forming creepage traces, and eventually developing into flashover or short circuit accidents, thereby effectively improving the safety of the equipment.

[0022] In the second step, the top protective cover 33 arranged on the upper end of the insulating shield 25 in the device is made of UV-proof ceramic. When the top protective cover 33 wraps the insulating shield 25 and the mounting base 24 inside, the mounting base 24 and the insulating shield 25 can be prevented from being directly exposed to the sun. The present invention sets a top protective cover 33 on the device and uses ceramic that can effectively prevent UV rays. This allows the device to avoid long-term exposure of the mounting base 24 and the insulating shield 25 to the ultraviolet rays of the sun during long-term use, thereby affecting its performance and service life.

[0023] In the third step, the top protective cover 33 on the device can also be blown by the wind to rotate the second fan blade 34, and the two support rods 32 are rotatably installed on the third ring 31. The connection method between the ball groove 35 opened in the third ring 31 and the support rod 32 is the same as the bearing in the prior art. Balls are arranged inside, so that the top protective cover 33 can rotate with the wind. In the present invention, when the top protective cover 33 rotates, the round rod 26 and the second scraping rod 27 remain stationary, so at this time the second scraping rod 27 can scrape the upper surface of the top protective cover 33, so that the top protective cover 33 can be cleaned to avoid excessive dust and garbage accumulation on the upper end of the top protective cover 33 after long-term use, thereby effectively avoiding the weight increase of the top protective cover 33, which leads to a decrease in the mechanical strength of the insulator.

[0024] In the fourth step, the present invention arranges a first scraping rod 13 and a second scraping rod 27 on the device to clean the composite umbrella group 28 and the top protective cover 33, so that the composite umbrella group 28 and the top protective cover 33 on the device can clean the rainwater on the upper end even after raining, thereby preventing the rainwater on the dense composite umbrella group 28 and the top protective cover 33 from forming a chain and causing rain flash. The device improves the efficiency of rainwater shedding through optimized design.

[0025] Finally, it should be noted that: Obviously, the above embodiments are only examples for clearly explaining the present invention, and are not intended to limit the implementation methods. For ordinary technicians in the relevant field, other different forms of changes or modifications can be made based on the above description. It is not necessary and impossible to list all the implementation methods here. The obvious changes or modifications derived from this are still within the scope of protection of the present invention.

Claims

1. A lightning protection insulator, comprising an insulator body (21), characterized in that: A mounting base (24) is provided at the upper end of the insulator body (21), a steel foot bolt (22) is provided at the lower end of the insulator body (21), a rotating ring (18) is rotatably mounted on the circumferential surface of the mounting base (24) via a bearing, an insulating shield (25) is provided at the upper end of the mounting base (24), and a high-voltage line (23) is provided between the mounting base (24) and the insulating shield (25); The circumferential surface of the insulator body (21) is provided with at least three composite umbrella groups (28), each of the composite umbrella groups (28) is provided with a dust cleaning mechanism, the dust cleaning mechanism comprising a first circular ring (11), and two first scraping rods (13) are fixedly mounted at equal distances on the lower end of the first circular ring (11); The insulating shield (25) is sleeved with a third circular ring (31), the upper end of the third circular ring (31) is provided with a ball groove (35), two support rods (32) are rotatably mounted in the ball groove (35) provided in the third circular ring (31), a top protective cover (33) is fixedly mounted on the upper ends of the two support rods (32), and four second fan blades (34) are fixedly mounted on the lower end of the top protective cover (33).

2. A lightning protection insulator according to claim 1, characterized in that: The lower ends of the two first scraping rods (13) are both attached to the upper surface of the composite umbrella group (28); Wherein, fixing blocks (12) are fixedly mounted on both side ends of the first circular ring (11).

3. A lightning protection insulator according to claim 2, characterized in that: A plurality of connecting rods (14) are fixedly connected between the two fixed blocks (12) in each group of dust cleaning mechanisms.

4. A lightning protection insulator according to claim 3, characterized in that: A second ring (16) is fixedly mounted through the circumferential surface of the two multi-connecting rods (14).

5. A lightning protection insulator according to claim 4, characterized in that: Four first fan blades (15) are fixedly mounted at equal intervals on the circumferential surface of the second circular ring (16).

6. A lightning protection insulator according to claim 5, characterized in that: A connecting bracket (17) is fixedly mounted between the upper ends of the two multi-connecting rods (14); Wherein, the connecting bracket (17) is fixedly mounted on the lower end of the rotating ring (18).

7. A lightning protection insulator according to claim 6, characterized in that: Locking screws (36) are threadedly installed on both sides of the circumferential surface of the third circular ring (31).

8. The lightning protection insulator according to claim 7, characterized in that: The two locking screws (36) are both fitted onto the circumferential surface of the insulating shield (25).

9. A lightning protection insulator according to claim 8, characterized in that: A round rod (26) is fixedly mounted on the upper end of the insulating shield (25); Wherein, a second scraping rod (27) is fixedly mounted on the upper end of the round rod (26).

10. The lightning protection insulator according to claim 9, characterized in that: The round rod (26) is rotatably mounted on the top protective cover (33); The second scraping rod (27) is fitted on the upper surface of the top protective cover (33) and rotates.

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