An insulator with self-cleaning function

Abstract

The present invention relates to an insulator with a self-cleaning function, comprising an insulating medium and a driving mechanism, wherein the bottom of the insulating medium is provided with a plurality of concentric annular grooves, a support rod is provided at the bottom of the insulating medium, an incomplete bevel gear is sleeved on the support rod, a rotating sleeve is provided on the support rod for rotation, a guide rod and a reciprocating screw are provided on the rotating sleeve, a complete bevel gear is provided on the reciprocating screw, a screw seat is connected to the reciprocating screw and the guide rod, a brush is connected to the top of the screw seat via a plurality of magnetic suspension structures, a driving mechanism is connected to the rotating sleeve and the support rod, and is used to drive the rotating sleeve to rotate on the support rod, so that the rotating sleeve drives the complete bevel gear to engage with the incomplete bevel gear once per rotation through the reciprocating screw, and the brush moves radially to the next position along the insulating medium for cleaning after each rotation. The present invention can increase the creepage distance without increasing the volume of the insulator, and can also automatically clean the lower surface of the insulator, reducing the risk of flashover and greatly improving power transmission safety.

Description

Technical Field

[0001] The invention belongs to the technical field of insulators, and in particular relates to an insulator with a self-cleaning function. Background Art

[0002] Insulators include porcelain, glass, and composite insulators. Each type of insulator has unique structural characteristics tailored to suit varying power transmission requirements. Insulators play a crucial role in power transmission lines. On the one hand, they provide electrical insulation, effectively preventing current leakage onto the towers and ensuring safe power transmission across transmission lines of varying voltage levels. On the other hand, insulators provide mechanical support, maintaining stable operation of transmission lines while withstanding mechanical forces such as conductor weight, wind, and icing.

[0003] Insulators in the prior art include an insulating medium with an umbrella-shaped structure. The insulating medium is made of an insulating material such as ceramic or glass. The upper surface of the insulating medium is designed with an umbrella-shaped structure, which facilitates wind or rainwater to wash away the upper surface during daily use, automatically cleaning dust and other dirt, thereby preventing the insulating medium from flashing over. A fixing structure for connecting wires is provided at the highest point of the top of the insulating medium, and a support portion is provided at the bottom of the insulating medium for mounting the insulator on a pole tower. However, the lower surface of the insulator in the prior art is a flat structure, which results in a small creepage distance. The lower surface of the insulating medium is also not easily washed away by rainwater for automatic cleaning, resulting in a large amount of dust and other dirt adhering to the lower surface, increasing the risk of flashover. Summary of the Invention

[0004] The present invention provides an insulator with a self-cleaning function, which can increase the creepage distance without increasing the volume of the insulator, and can also automatically clean the lower surface of the insulator, thereby reducing the risk of flashover and greatly improving power transmission safety.

[0005] The technical solution adopted by the present invention is:

[0006] The cam is provided with a plurality of concentric ring grooves at the top and bottom of the insulating medium, the cam is provided with a support rod at the center of the annular groove, the support rod is provided with an incomplete bevel gear, the support rod is provided with a rotating sleeve, the rotating sleeve is provided with a guide rod and a reciprocating screw rod in parallel, the reciprocating screw rod is provided with a complete bevel gear, the reciprocating screw rod and the guide rod are connected to the screw rod seat, the top of the screw rod seat is connected with a brush through a plurality of magnetic suspension structures, the bristles of the brush are attached to the bottom of the insulating medium, the width of the brush is smaller than the radius of the lower surface of the insulating medium, the driving mechanism is connected to the rotating sleeve and the support rod, and is used to drive the rotating sleeve to rotate on the support rod, so that the rotating sleeve drives the complete bevel gear to mesh with the incomplete bevel gear once every rotation through the reciprocating screw rod, so that the brush moves to the next position along the insulating medium radial direction for cleaning after each rotation.

[0007] The magnetic levitation structure includes a jacket arranged on the top of the screw seat, the top and bottom of the jacket are both open structures, and a floating rod is passed through the two openings of the jacket. An upper magnetic ring and a lower magnetic ring are respectively provided on the floating rod, and the upper magnetic ring and the lower magnetic ring are respectively located above and below the jacket. An upper magnetic ring and a lower magnetic ring are also provided on the top and bottom of the jacket, respectively. The opposite end magnetic poles of the two upper magnetic rings produce a repulsive force, and the opposite end magnetic poles of the two lower magnetic rings produce a repulsive force. An outer magnetic sleeve is provided on the inner wall of the jacket, and an inner magnetic sleeve is provided on the floating rod. The inner magnetic sleeve and the outer magnetic sleeve are aligned, and the magnetic poles of the opposite surfaces of the two are the same. The brush is provided at the upper end of the floating rod.

[0008] Furthermore, the upper and lower sides of the float rod are connected to an upper ring and a lower ring respectively through a plurality of connecting rods, and the upper magnetic ring 1 and the lower magnetic ring 1 are respectively arranged on the lower surface of the upper ring and the upper surface of the lower ring.

[0009] Furthermore, a U-shaped rod is provided on the top of the screw seat, and the outer sleeve is provided on the U-shaped rod.

[0010] Furthermore, the driving mechanism includes a passive gear sleeved on the rotating sleeve and a motor provided on the support rod, the output shaft of the motor is connected to a driving gear, and the driving gear is meshed with the passive gear.

[0011] Furthermore, the driving mechanism includes fan blades arranged on the rotating sleeve.

[0012] Furthermore, a mounting groove is provided on the support rod, and the rotating sleeve is arranged in the mounting groove. An upper magnetic ring 2 is relatively provided on the top of the mounting groove and the top of the rotating sleeve, and the two opposite end magnetic poles of the upper magnetic ring 2 produce a repulsive force. A lower magnetic ring 2 is relatively provided on the bottom of the mounting groove and the bottom of the rotating sleeve, and the two opposite end magnetic poles of the lower magnetic ring 2 produce a repulsive force. An inner magnetic sleeve 2 is sleeved on the inner wall of the mounting groove, and an outer magnetic sleeve 2 is provided on the inner wall of the rotating sleeve. The opposite surface magnetic poles of the outer magnetic sleeve 2 and the inner magnetic sleeve 2 produce a repulsive force and are relatively aligned, so that the rotating sleeve is suspended in the mounting groove.

[0013] Furthermore, the rotating sleeve and the support rod are connected via a bearing.

[0014] Furthermore, the distance between any two adjacent annular grooves is the same, the width of the brush is greater than or equal to the distance between the two adjacent annular grooves, the distance that the brush moves radially along the insulating medium each time is equal to the distance between the two adjacent annular grooves, and when the brush rotates circumferentially along the insulating medium, the middle of the brush is aligned with the middle of the two adjacent annular grooves.

[0015] Compared with the prior art, the present invention has the following beneficial effects:

[0016] 1. By concentrically providing multiple annular grooves on the lower surface of the insulating medium, the creepage distance can be increased without increasing the volume of the insulator. The driving mechanism is used to drive the rotating sleeve to rotate on the support rod, so that the rotating sleeve drives the complete bevel gear to engage with the incomplete bevel gear once every rotation through the reciprocating screw. After each rotation, the brush moves to the next position along the radial direction of the insulating medium for cleaning. It can also automatically clean the lower surface of the insulator, thereby improving the cleanliness of the lower surface of the insulating medium, reducing the risk of flashover, and greatly improving power transmission safety.

[0017] 2. The upper magnetic ring, lower magnetic ring, inner magnetic sleeve, and outer magnetic sleeve work together to secure the floating rod within the outer sleeve without contact between the two. This prevents current from being transferred to the reciprocating screw and guide rod through the lower surface of the insulating medium and the brushes, which helps to increase the creepage distance. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 This is a schematic diagram of the overall structure of Example 1;

[0019] Figure 2 for Figure 1 A magnified view of point A in the figure;

[0020] Figure 3 for Figure 1 Enlarged view of point B in FIG.

[0021] Figure 4 for Figure 2 Cross-sectional view in CC;

[0022] Figure 5 A bottom view of the incomplete bevel gear in Example 1;

[0023] Figure 6 This is a schematic diagram of the partial structure of Example 2;

[0024] Figure 7 This is a schematic diagram of the partial structure of Example 3;

[0025] In the figure: 1. Insulating medium; 2. Annular groove; 3. Support rod; 4. Rotating sleeve; 5. Fan blade; 6. Guide rod; 7. Reciprocating screw; 8. Connecting rod; 9. Screw seat; 10. U-shaped rod; 11. Lower ring; 12. Lower magnetic ring 1; 13. Outer sleeve; 14. Inner magnetic sleeve 1; 15. Outer magnetic sleeve 1; 16. Upper magnetic ring 1; 17. Upper ring; 18. Brush; 19. Complete bevel gear; 20. Incomplete bevel gear; 21. Meshing teeth; 22. Passive gear; 23. Motor; 24. Driving gear; 25. Lower magnetic ring 2; 26. Outer magnetic sleeve 2; 27. Upper magnetic ring 2; 28. Mounting groove; 29. ​​Inner magnetic sleeve 2; 30. Floating rod. DETAILED DESCRIPTION

[0026] In order to better understand the technical content of the present invention, specific embodiments are provided below, and the present invention is further described in conjunction with the accompanying drawings.

[0027] Example 1:

[0028] See also Figures 1 to 5 The present invention provides an insulator with a self-cleaning function, comprising an insulating medium 1 and a driving mechanism. The insulating medium 1 has a conical structure, and a fixing structure and a plurality of concentric annular grooves 2 are provided at the top and bottom of the insulating medium 1, respectively. A support rod 3 is vertically fixed to the bottom of the insulating medium 1, and the support rod 3 is located at the center of the annular groove 2. By providing a plurality of concentric annular grooves 2 on the lower surface of the insulating medium 1, the current flows to the support rod 3 through the outer surface of the insulating medium 1 and the wavy surface at the bottom of the insulating medium 1, thereby improving the creepage distance without increasing the volume of the insulator.

[0029] The support rod 3 is provided with an incomplete bevel gear 20 as the fixed sleeve, and the support rod 3 is provided with a rotating sleeve 4 through a bearing rotating sleeve. A guide rod 6 and a reciprocating screw rod 7 are provided in parallel on the rotating sleeve 4. The guide rod 6 is fixedly connected to the rotating sleeve 4, and the reciprocating screw rod 7 is rotatably connected to the rotating sleeve 4. The axes of the guide rod 6 and the reciprocating screw rod 7 pass through the axis of the support rod 3 and are perpendicular to each other. A complete bevel gear 19 is provided on the reciprocating screw rod 7. The reciprocating screw rod 7 and the guide rod 6 are commonly connected to the screw rod seat 9. The reciprocating screw rod 7 is threadedly connected to the screw rod seat 9, and the guide rod 6 is slidably connected to the screw rod seat 9. The top of the screw rod seat 9 is connected with a brush 18 through multiple magnetic levitation structures. The upper end of the bristles of the brush 18 is attached to the bottom of the insulating medium 1, and the width of the brush 18 is smaller than the radius of the lower surface of the insulating medium 1. The driving mechanism is connected to the rotating sleeve 4 and the support rod 3. When the driving mechanism drives the rotating sleeve 4 to rotate on the support rod 3, the rotating sleeve 4 drives the guide rod 6 and the reciprocating screw rod 7 around the support rod 3 The reciprocating screw rod 7 drives the complete bevel gear 19 to rotate around the support rod 3. Since the complete bevel gear 19 is provided with complete meshing teeth 21 in the circumference, and the incomplete bevel gear 20 is only provided with partial meshing teeth 21, the other circumferential parts thereof are smooth structures, so that the rotating sleeve 4 drives the complete bevel gear 19 through the reciprocating screw rod 7 to mesh with the incomplete bevel gear 20 once every rotation. When meshing, the incomplete bevel gear 20 drives the reciprocating screw rod 7 to rotate on the rotating sleeve 4. Under the cooperation of the guide rod 6, the reciprocating screw rod 7 drives the screw rod seat 9 to move radially along the insulating medium 1, so that the reciprocating screw rod 7 drives the brush 18 through the screw rod seat 9 and the magnetic suspension structure to move to the next position radially along the insulating medium 1 for cleaning after each rotation. The lower surface of the insulating medium 1 can be cleaned reciprocally, thereby improving the cleanliness of the lower surface of the insulating medium 1, reducing the risk of flashover, and greatly improving the safety of power transmission.

[0030] The magnetic suspension structure includes a jacket 13 fixed to the top of the screw seat 9. The top and bottom of the jacket 13 are both open structures. A floating rod 30 is vertically provided in the two openings of the jacket 13. An upper magnetic ring 16 and a lower magnetic ring 12 are fixed on the floating rod 30 respectively. The upper magnetic ring 16 and the lower magnetic ring 12 are respectively located above and below the jacket 13. The top and bottom of the jacket 13 are also fixed with an upper magnetic ring 16 and a lower magnetic ring 12 respectively. The two upper magnetic rings 16 are aligned, and the opposite end magnetic poles of the two produce a repulsive force. The two lower magnetic rings 13 and 14 are aligned with each other, and the magnetic poles at the opposite ends of the two produce a repulsive force. An outer magnetic sleeve 15 is fixedly provided on the inner wall of the outer sleeve 13, and an inner magnetic sleeve 14 is fixedly provided on the float rod 30. The inner magnetic sleeve 14 and the outer magnetic sleeve 15 are aligned with each other, and the magnetic poles of the opposite surfaces of the two are the same. The brush 18 is fixedly provided on the upper end of the float rod 30, so that the float rod 30 is positioned in the middle of the outer sleeve 13 and does not contact the outer sleeve 13. This can prevent the current from being transmitted to the reciprocating screw 7 and the guide rod 6 through the lower surface of the insulating medium 1 and the brush 18, which is beneficial to improving the creepage distance.

[0031] Preferably, the upper and lower sides of the float rod 30 are fixedly connected to the upper ring 17 and the lower ring 11 through multiple connecting rods 8, and the upper magnetic ring 16 and the lower magnetic ring 12 are fixed on the lower surface of the upper ring 17 and the upper surface of the lower ring 11 respectively.

[0032] Preferably, a U-shaped rod 10 is fixed on the top of the screw seat 9, and a sleeve 13 is fixed on the U-shaped rod 10. There are two sleeves 13, which can prevent the brush 18 from rotating relative to the screw seat 9.

[0033] Preferably, the driving mechanism includes fan blades 5 fixed on the rotating sleeve 4. Since the insulator is generally installed high on the pole tower and is in an environment with strong winds, the wind can be used to blow on the fan blades 5, thereby driving the rotating sleeve 4 to rotate on the support rod 3, achieving the effect of energy saving and self-cleaning.

[0034] Preferably, the distance between any two adjacent annular grooves 2 is the same, and the width of the brush 18 is slightly greater than or equal to the distance between the two adjacent annular grooves 2. The purpose is to avoid the contact width between the brush 18 and the insulating medium 1 being too large, causing the current to directly pass through the brush 18 across the annular groove 2 and reduce the creepage distance. The distance that the brush 18 moves radially along the insulating medium 1 each time is equal to the distance between the two adjacent annular grooves 2. When the brush 18 rotates circumferentially along the insulating medium 1, the middle of the brush 18 is aligned with the middle of the two adjacent annular grooves 2. This ensures that the next area will be continuously swept after the rotating brush sweeps a circle, avoiding the generation of a circular sweeping missing area after radial movement.

[0035] Example 2:

[0036] See also Figure 6 , which differs from the first embodiment in that:

[0037] Preferably, the driving mechanism includes a passive gear 22 fixedly mounted on the rotating sleeve 4 and a motor 23 fixedly mounted on the support rod 3. The output shaft of the motor 23 is fixedly connected to a driving gear 24. The driving gear 24 is engaged with the passive gear 22. The motor 23 drives the driving gear 24 to rotate. The driving gear 24 drives the rotating sleeve 4 to rotate on the support rod 3 through the passive gear 22, so that the insulating medium 1 can be cleaned.

[0038] Example 3:

[0039] See also Figure 7 , which differs from Example 1 and Example 2 in that:

[0040] Preferably, an annular mounting groove 28 is provided on the support rod 3, and the rotating sleeve 4 is sleeved in the mounting groove 28. An upper magnetic ring 27 is fixedly provided on the top of the mounting groove 28 and the top of the rotating sleeve 4. The two upper magnetic rings 27 are aligned, and the opposite end magnetic poles of the two produce a repulsive force. A lower magnetic ring 25 is provided on the bottom of the mounting groove 28 and the bottom of the rotating sleeve 4. The two lower magnetic rings 25 are aligned, and the opposite end magnetic poles of the two produce a repulsive force. An inner magnetic sleeve 29 is fixedly provided on the inner wall of the mounting groove 28, and an outer magnetic sleeve 26 is fixed on the inner wall of the rotating sleeve 4. The opposite surface magnetic poles of the outer magnetic sleeve 26 and the inner magnetic sleeve 29 produce a repulsive force and are aligned, so that the rotating sleeve 4 is positioned in the mounting groove 28, and the rotating sleeve 4 does not contact the support rod 3. In this way, the rotating sleeve 4 can rotate freely in the mounting groove 28, and its rotation resistance is extremely small, so that it can be driven to self-clean when a small wind blows on the fan blades 5.

[0041] The above is only a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the technical principles of the present invention. These improvements and modifications should also be regarded as within the scope of protection of the present invention.

Claims

1. An insulator with a self-cleaning function, characterized in that: The top and bottom of the drive mechanism are connected with the drive mechanism, and the drive mechanism is connected with the control wheel shaft through the control wheel shaft, and the control wheel shaft is connected with the control wheel shaft through the control wheel shaft. The magnetic levitation structure includes a jacket arranged on the top of the screw seat, the top and bottom of the jacket are both open structures, and a floating rod is passed through the two openings of the jacket. An upper magnetic ring and a lower magnetic ring are respectively provided on the floating rod, and the upper magnetic ring and the lower magnetic ring are respectively located above and below the jacket. An upper magnetic ring and a lower magnetic ring are also provided on the top and bottom of the jacket, respectively. The opposite end magnetic poles of the two upper magnetic rings produce a repulsive force, and the opposite end magnetic poles of the two lower magnetic rings produce a repulsive force. An outer magnetic sleeve is provided on the inner wall of the jacket, and an inner magnetic sleeve is provided on the floating rod. The inner magnetic sleeve and the outer magnetic sleeve are aligned, and the magnetic poles of the opposite surfaces of the two are the same. The brush is provided at the upper end of the floating rod.

2. The insulator with self-cleaning function according to claim 1, characterized in that: The upper and lower sides of the floating rod are respectively connected with an upper ring and a lower ring through a plurality of connecting rods. The upper magnetic ring 1 and the lower magnetic ring 1 are respectively arranged on the lower surface of the upper ring and the upper surface of the lower ring.

3. The insulator with self-cleaning function according to claim 1, characterized in that: A U-shaped rod is provided on the top of the screw rod seat, and the outer sleeve is provided on the U-shaped rod.

4. The insulator with self-cleaning function according to any one of claims 1 to 3, characterized in that: The driving mechanism includes a passive gear sleeved on the rotating sleeve and a motor arranged on the support rod. The output shaft of the motor is connected to a driving gear, and the driving gear is engaged with the passive gear.

5. The insulator with self-cleaning function according to any one of claims 1 to 3, characterized in that: The driving mechanism includes fan blades arranged on the rotating sleeve.

6. The insulator with self-cleaning function according to any one of claims 1 to 3, characterized in that: The support rod is provided with a mounting groove, and the rotating sleeve is arranged in the mounting groove. The top of the mounting groove and the top of the rotating sleeve are both provided with upper magnetic rings 2, and the opposite end magnetic poles of the two upper magnetic rings produce a repulsive force. The bottom of the mounting groove and the bottom of the rotating sleeve are both provided with lower magnetic rings 2, and the opposite end magnetic poles of the two lower magnetic rings produce a repulsive force. The inner wall of the mounting groove is provided with an inner magnetic sleeve 2, and the inner wall of the rotating sleeve is provided with an outer magnetic sleeve 2. The opposite surface magnetic poles of the outer magnetic sleeve 2 and the inner magnetic sleeve 2 produce a repulsive force and are relatively aligned, so that the rotating sleeve is suspended in the mounting groove.

7. The insulator with self-cleaning function according to any one of claims 1 to 3, characterized in that: The rotating sleeve and the support rod are connected via a bearing.

8. The insulator with self-cleaning function according to any one of claims 1 to 3, characterized in that: The distance between any two adjacent annular grooves is the same, the width of the brush is greater than or equal to the distance between the two adjacent annular grooves, the distance that the brush moves radially along the insulating medium each time is equal to the distance between the two adjacent annular grooves, and when the brush rotates circumferentially along the insulating medium, the middle of the brush is aligned with the middle of the two adjacent annular grooves.

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