Waterproof high-voltage porcelain insulator capable of preventing rainwater from permeating into porcelain piece

Abstract

The invention discloses a waterproof high-voltage porcelain insulator capable of preventing rainwater from permeating into a porcelain piece, and relates to the technical field of insulators, the waterproof high-voltage porcelain insulator comprises a connecting rod, the middle section of the connecting rod is sleeved with a porcelain piece body, the connecting rod is in threaded connection with a first nut used for fastening the porcelain piece body, and the first nut is located in the porcelain piece body; a rotating sleeve is arranged above the porcelain body, the rotating sleeve is rotationally connected to the outer portion of the connecting rod, a waterproof piece used for preventing rainwater from permeating into the porcelain body is fixedly connected to the outer portion of the rotating sleeve, and an inner cavity is formed in the connecting rod. According to the waterproof high-voltage porcelain insulator capable of preventing rainwater from permeating into the porcelain piece, through arrangement of a square block, a first sliding block, a second sliding block and other structures, the first nut can be limited, the loosening condition is prevented, and the stability of connection between the connecting rod and the porcelain piece body is improved; meanwhile, the rotating sleeve can be limited, and the rotating sleeve and the waterproof piece are prevented from rotating at will in the dismounting and mounting process.

Description

Technical Field

[0001] The invention relates to the technical field of insulators, and in particular to a waterproof high-voltage porcelain insulator capable of preventing rainwater from penetrating into a porcelain part. Background Art

[0002] Insulators are a special type of insulating control that can play an important role in overhead transmission lines. In the early years, insulators were mostly used on utility poles, and gradually developed into high-voltage power lines. Many disc-shaped insulators are hung on one end of the tower to increase the creepage distance. They are usually made of glass or ceramics, called insulators, and are installed between conductors of different potentials or between conductors and grounded components. They can withstand voltage and mechanical stress.

[0003] For example, a patent entitled: A waterproof high-voltage porcelain insulator for convenient wiring (patent application number: CN202022580413.5) discloses a waterproof high-voltage porcelain insulator for convenient wiring. The wiring mechanism is connected to the top block at the upper end of the waterproof sheet, and then the connecting rod is passed through the shaft hole, and then the fixing nut is threadedly connected to the connecting rod, so that the porcelain body and the various components are assembled. However, during actual use, the fixing nut is prone to loosening due to vibration and other reasons, affecting the stability of the porcelain insulator.

[0004] Therefore, it is necessary to propose a waterproof high-voltage porcelain insulator that prevents rainwater from penetrating into the interior of the porcelain part to solve the above problems. Summary of the invention

[0005] The purpose of the present invention is to provide a waterproof high-voltage porcelain insulator that prevents rainwater from penetrating into the interior of the porcelain part, so as to solve the problem that during actual use, the fixing nut is easily loosened due to vibration and the like, thereby affecting the stability of the porcelain insulator.

[0006] To achieve the above object, the present invention provides the following technical solution: a waterproof high-voltage porcelain insulator for preventing rainwater from penetrating into the interior of a porcelain part, comprising a connecting rod, a porcelain part body is sleeved on the middle section of the connecting rod, a first nut for fastening the porcelain part body is threadedly connected to the connecting rod, and the first nut is located inside the porcelain part body;

[0007] A rotating sleeve is provided above the porcelain body, and the rotating sleeve is rotatably connected to the outside of the connecting rod, and a waterproof sheet for preventing rainwater from penetrating into the inside of the porcelain body is fixedly connected to the outside of the rotating sleeve, and an inner cavity is provided inside the connecting rod, and a second air groove is provided on the outer wall of the connecting rod, and the second air groove is connected with the bottom end of the inner cavity, and a second slider for limiting the first nut is slidably provided inside the second air groove, and a first air groove is provided on the outer wall of the connecting rod, and the first air groove is connected with the inner cavity, and a first slider for limiting the rotating sleeve is slidably provided inside the first air groove, and a block is slidably provided inside the inner cavity, and the block is located between the first air groove and the second air groove;

[0008] A lower clamp is rotatably provided at the top of the connecting rod, a sliding hole is opened on the upper surface of the lower clamp, the bottom end of the sliding hole passes through the top inner wall of the inner cavity, the sliding hole is connected to the inner cavity, a square rod is slidably provided inside the sliding hole, and the square block is rotatably connected to the square rod.

[0009] Preferably, a first spring is sleeved on the outside of the square rod, the upper end of the first spring abuts against the top of the inner cavity, and the lower end of the first spring abuts against the block.

[0010] Preferably, a fixed sleeve is fixedly connected to the outside of the connecting rod, the fixed sleeve is located above the porcelain body, and the rotating sleeve is rotatably connected to the top of the fixed sleeve.

[0011] Preferably, a guide bar is fixedly connected to the outer wall of the rotating sleeve, the guide bar is arranged obliquely, and there are multiple guide bars, which are evenly distributed around the rotating sleeve.

[0012] Preferably, a support plate is fixedly connected to the top of the square rod, the support plate is arc-shaped, and the upper surface of the support plate is a concave surface, and the top of the lower clamp is matched with an upper clamp.

[0013] Preferably, a cylinder is fixedly connected to the lower surface of the support plate, a sliding rod is slidably arranged inside the cylinder, the sliding rod passes through the lower surface of the cylinder, a third spring is arranged inside the cylinder, one end of the third spring is fixedly connected to the sliding rod, the other end of the third spring is fixedly connected to the inner wall of the cylinder, and a through groove cooperating with the sliding rod is penetrated through the lower clamp.

[0014] Preferably, a limiting ring is fixedly connected to the outer ring of the waterproof sheet.

[0015] Preferably, a threaded rod is fixedly connected to the bottom end of the connecting rod, a gasket is sleeved on the threaded rod, and a second nut is threadedly connected to the threaded rod.

[0016] Preferably, a slot is provided on the second nut, and a limiting component is provided between the connecting rod and the slot to prevent the second nut from rotating at will.

[0017] Preferably, the limiting assembly includes a second spring, a first U-shaped card, a second U-shaped card, a slide plate and a square tube, the first U-shaped card is clamped at the bottom end of the connecting rod, the second U-shaped card is clamped inside the card slot, the square tube is fixedly connected to the first U-shaped card, the first U-shaped card and the square tube are distributed in an L shape, the slide plate is fixedly connected to the second U-shaped card, the second U-shaped card and the slide plate are distributed in an L shape, one end of the slide plate away from the second U-shaped card is slidably arranged inside the square tube, the second spring is located inside the square tube, one end of the second spring is fixedly connected to the slide plate, and the other end of the second spring is fixedly connected to the inner wall of the square tube.

[0018] Technical effects and advantages of the present invention:

[0019] 1. The present invention can limit the first nut by setting structures such as a block, a first slider, and a second slider to prevent loosening and improve the stability of the connection between the connecting rod and the porcelain body; at the same time, it can limit the rotating sleeve to prevent the rotating sleeve and the waterproof sheet from rotating at will during the disassembly and assembly process;

[0020] 2. The present invention sets the connecting rod and the porcelain body as a movable structure. Compared with the prior art in which the porcelain and metal parts are fixed by gluing and other methods that are difficult to disassemble, when the connecting rod or the porcelain body is damaged, it can be replaced in a targeted manner, thereby reducing the cost of equipment use and improving the use efficiency;

[0021] 3. By setting the waterproof sheet, the porcelain body below it can be covered, effectively preventing rainwater from penetrating into the porcelain body, making the insulator have a good waterproof effect;

[0022] 4. Affected by external wind force, the waterproof sheet can be rotated on the connecting rod through the rotating sleeve to throw out the rainwater dripping on the waterproof sheet, reducing the impact of rainwater on the porcelain body. The rotating waterproof sheet makes it difficult for birds to stay on the waterproof sheet, achieving the effect of bird repelling and improving the safety of insulator use;

[0023] 5. When the wind acts on the guide strip, it will speed up the rotation of the rotating sleeve and the waterproof sheet, so that the rainwater on the waterproof sheet can be thrown out faster, thus improving the waterproof effect. At the same time, under the guidance of the curved surface outside the porcelain body, an air duct is formed between the waterproof sheet and the porcelain body, which effectively concentrates the airflow and makes the rotating sleeve and the waterproof sheet rotate more efficiently.

[0024] 6. A limiting ring is fixedly connected to the outer ring of the waterproof sheet, and the bottom end of the limiting ring protrudes from the edge of the waterproof sheet, so that rainwater is not easy to slide to the lower surface of the waterproof sheet, thereby ensuring the waterproof effect of the waterproof sheet;

[0025] 7. The lower clamp is rotatably arranged on the top of the connecting rod. The lower clamp can be rotated to adjust different angles to adapt to cables in different directions, thereby improving the convenience of installation.

[0026] 8. The cable squeezes the support plate, which is easy to operate. When the block slides downward, the first spring will be stretched. The return elastic force of the first spring reacts on the cable through the support plate, and cooperates with the upper clamp and the lower clamp to improve the stability of cable fixation;

[0027] 9. By setting a limit assembly, the second nut is limited to prevent loosening. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] Figure 1 The present invention is a schematic structural diagram of a waterproof high-voltage porcelain insulator for preventing rainwater from penetrating into the interior of the porcelain part.

[0029] Figure 2 It is a schematic diagram of the structure of the connecting rod and the porcelain body of the present invention.

[0030] Figure 3 It is a schematic diagram of the structure of the ceramic body and the waterproof sheet of the present invention.

[0031] Figure 4 For the present invention Figure 3 A schematic diagram of the enlarged structure in the middle.

[0032] Figure 5 For the present invention Figure 4 Enlarged schematic diagram of the structure at point B in the middle.

[0033] Figure 6 For the present invention Figure 3 Enlarged schematic diagram of the structure at point C in the middle.

[0034] Figure 7 For the present invention Figure 3 Enlarged schematic diagram of the structure at point D in the middle.

[0035] Figure 8 It is a schematic diagram of the structure of the rotating sleeve and the guide strip of the present invention.

[0036] In the figure: 1. connecting rod; 2. porcelain body; 3. first nut; 4. rotating sleeve; 5. waterproof sheet; 6. first air groove; 7. first slider; 8. inner cavity; 9. block; 10. second air groove; 11. second slider; 12. lower clamp; 13. sliding hole; 14. square rod; 15. first spring; 16. support plate; 17. upper clamp; 18. limiting ring; 19. second spring; 20. through groove; 21. cylinder; 22. sliding rod; 23. third spring; 24. fixing sleeve; 25. guide strip; 26. threaded rod; 27. second nut; 28. slot; 29. ​​gasket; 30. first U-shaped clip; 31. second U-shaped clip; 32. slide plate; 33. square cylinder. DETAILED DESCRIPTION

[0037] The following will be combined with the drawings in the embodiments of the present invention to clarify the technical solutions in the embodiments of the present invention; it is clearly described in detail. 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.

[0038] The present invention provides Figures 1 to 8 A waterproof high-voltage porcelain insulator for preventing rainwater from penetrating into the interior of a porcelain part is shown, comprising a connecting rod 1, a porcelain part body 2 is sleeved on the middle section of the connecting rod 1, a first nut 3 for fastening the porcelain part body 2 is threadedly connected to the connecting rod 1, and the first nut 3 is located inside the porcelain part body 2. When used specifically, a washer can be arranged between the first nut 3 and the porcelain part body 2 to improve the stability and safety of the connection by increasing friction or providing additional support.

[0039] The present invention configures the connecting rod 1 (metal part) and the porcelain body 2 (porcelain part) as a movable structure. Compared with the prior art in which the porcelain and metal parts are fixed by gluing or other methods that are difficult to disassemble, when the connecting rod 1 or the porcelain body 2 is damaged, it can be replaced in a targeted manner, thereby reducing the cost of equipment use and improving efficiency.

[0040] A rotating sleeve 4 is arranged above the porcelain body 2, and the rotating sleeve 4 is rotatably connected to the outside of the connecting rod 1. A fixed sleeve 24 is fixedly connected to the outside of the connecting rod 1. The fixed sleeve 24 is located above the porcelain body 2, and the rotating sleeve 4 is rotatably connected to the top of the fixed sleeve 24. When used specifically, a ball bearing can be arranged between the fixed sleeve 24 and the rotating sleeve 4 to improve the smoothness of rotation.

[0041] A fixing sleeve 24 is provided to improve the stability of the rotation of the rotating sleeve 4. At the same time, the first nut 3 cooperates with the fixing sleeve 24 to fix the porcelain body 2, and the assembly of the connecting rod 1 and the porcelain body 2 is completed. A waterproof sheet 5 is fixedly connected to the outside of the rotating sleeve 4 to prevent rainwater from penetrating into the inside of the porcelain body 2. The waterproof sheet 5 can be made of, but not limited to, polycarbonate, and has the characteristics of high strength, good weather resistance, strong UV resistance, etc., and the waterproof sheet 5 is in an arc shape to facilitate the flow of rainwater.

[0042] By providing the waterproof sheet 5, the porcelain body 2 below it can be covered, effectively preventing rainwater from penetrating into the porcelain body 2, so that the waterproof effect of the insulator is good.

[0043] When it rains, affected by external wind force, the waterproof sheet 5 can be rotated on the connecting rod 1 through the rotating sleeve 4 to throw rainwater dripping on the waterproof sheet 5 outward, thereby reducing the influence of rainwater on the porcelain body 2.

[0044] At the same time, the rotating waterproof sheet 5 makes it difficult for birds to stay on the waterproof sheet 5, thereby achieving the effect of driving away birds and improving the safety of the insulator.

[0045] In order to improve the rotation efficiency of the waterproof sheet 5 , a guide bar 25 is fixedly connected to the outer wall of the rotating sleeve 4 . The guide bar 25 is arranged obliquely. There are multiple guide bars 25 , and the multiple guide bars 25 are evenly distributed around the rotating sleeve 4 .

[0046] When wind acts on the guide strip 25, the rotation speed of the rotating sleeve 4 and the waterproof sheet 5 will be accelerated, making it easier to throw rainwater on the waterproof sheet 5 outwards, thereby improving the waterproof effect; at the same time, under the guiding effect of the external curved surface of the porcelain body 2, an air duct is formed between the waterproof sheet 5 and the porcelain body 2, effectively concentrating the airflow, so that the rotating sleeve 4 and the waterproof sheet 5 can rotate more efficiently.

[0047] This insulator is particularly suitable for installation in areas with strong winds all year round, such as the southeast coast, and can be adjusted according to the specific use environment.

[0048] A limiting ring 18 is fixedly connected to the outer ring of the waterproof sheet 5 , and the bottom end of the limiting ring 18 protrudes from the edge of the waterproof sheet 5 , so that rainwater is not easy to slide to the lower surface of the waterproof sheet 5 , thereby ensuring the waterproof effect of the waterproof sheet 5 .

[0049] Considering that the first nut 3 is easy to loosen due to vibration and other reasons during use; at the same time, the waterproof sheet 5 is easy to rotate at will during the installation process, which will affect the installation efficiency, an inner cavity 8 is opened inside the connecting rod 1, and a second air groove 10 is opened on the outer wall of the connecting rod 1. The second air groove 10 is connected to the bottom end of the inner cavity 8, and a second slider 11 for limiting the first nut 3 is slidably arranged inside the second air groove 10. A first air groove 6 is opened on the outer wall of the connecting rod 1, and the first air groove 6 is connected to the inner cavity 8. A first slider 7 for limiting the rotating sleeve 4 is slidably arranged inside the first air groove 6, and a block 9 is slidably arranged inside the inner cavity 8, and the block 9 is located between the first air groove 6 and the second air groove 10.

[0050] During specific use, a sealing gasket can be arranged between the block 9 and the inner cavity 8 to improve the sealing performance of the sliding and reduce wear.

[0051] The inner cavity 8 and the second air groove 10 can be manufactured by drilling, welding and the like.

[0052] The top of the connecting rod 1 is rotatably provided with a lower clamp 12, the upper surface of the lower clamp 12 is provided with a sliding hole 13, and the bottom end of the sliding hole 13 passes through the top inner wall of the inner cavity 8, the sliding hole 13 is connected with the inner cavity 8, and a square rod 14 is slidably provided inside the sliding hole 13, and the block 9 is rotatably connected to the square rod 14. The top of the square rod 14 is fixedly connected with a support plate 16, the support plate 16 is in an arc shape, and the upper surface of the support plate 16 is a concave surface.

[0053] The top of the lower clamping piece 12 is matched with an upper clamping piece 17 , and the lower clamping pieces 12 are fixed to each other by bolts.

[0054] Furthermore, the lower clamp 12 is rotatably set on the top of the connecting rod 1. The lower clamp 12 is rotated to adjust different angles to adapt to cables in different directions, thereby improving the convenience of installation; and the support plate 16 and the lower clamp 12 are adjusted synchronously. After adjustment, the cable is placed in the lower clamp 12 and abutted against the support plate 16, and the upper clamp 17 is installed on the lower clamp 12 to complete the connection between the insulator and the cable.

[0055] Specifically, when the cable is fixed between the upper clamp 17 and the lower clamp 12 , the cable will squeeze the support plate 16 to slide downward, and at the same time drive the block 9 to slide downward inside the inner cavity 8 through the square rod 14 .

[0056] When the block 9 slides downward inside the inner cavity 8, the gas in the lower half of the inner cavity 8 will be pressed into the second air groove 10, so that the second slider 11 slides outward and abuts against the bottom of the first nut 3, completing the limitation of the first nut 3 to prevent loosening; and when the block 9 slides downward, the gas inside the first air groove 6 will be sucked, so that the first slider 7 slides toward the square rod 14, and the first slider 7 is out of contact with the inner wall of the rotating sleeve 4, releasing the restriction on the rotating sleeve 4, so that the rotating sleeve 4 can rotate outside the connecting rod 1, so that the waterproof sheet 5 can rotate under the action of external wind force, thereby improving the waterproof effect.

[0057] A first spring 15 is sleeved on the outside of the square rod 14 , the upper end of the first spring 15 abuts against the top of the inner cavity 8 , and the lower end of the first spring 15 abuts against the block 9 .

[0058] The cable squeezes the support plate 16, which is easy to operate. When the block 9 slides downward, the first spring 15 is stretched, and the return elastic force of the first spring 15 reacts on the cable through the support plate 16, and cooperates with the upper clamp 17 and the lower clamp 12 to improve the stability of cable fixing.

[0059] When disassembling, the upper clamp 17 is removed from the lower clamp 12, and then the cable is taken out from the lower clamp 12, the cable is separated from the support plate 16, and the restoring elastic force of the first spring 15 drives the block 9 to slide upward and reset.

[0060] When the block 9 slides upward inside the inner cavity 8, the gas inside the second air groove 10 will be sucked, so that the second slider 11 is recovered to the inside of the second air groove 10, and the limit on the first nut 3 is released, which is convenient for disassembly; and when the block 9 slides upward, the gas in the upper half of the inner cavity 8 flows back to the inside of the first air groove 6, so that the first slider 7 slides toward the rotating sleeve 4, and the first slider 7 abuts against the inner wall of the rotating sleeve 4, thereby limiting the rotating sleeve 4 and preventing the rotating sleeve 4 and the waterproof sheet 5 from rotating at will during the disassembly and assembly process.

[0061] By setting structures such as the block 9, the first slider 7, the second slider 11, etc., the first nut 3 can be limited to prevent loosening, thereby improving the stability of the connection between the connecting rod 1 and the porcelain body 2; at the same time, the rotating sleeve 4 can be restricted to prevent the rotating sleeve 4 and the waterproof sheet 5 from rotating at will during the disassembly and assembly process.

[0062] In order to prevent the support plate 16, the upper clamp 17 and the lower clamp 12 and other structures from rotating at will, a cylinder 21 is fixedly connected to the lower surface of the support plate 16, and a slide rod 22 is slidably arranged inside the cylinder 21. The slide rod 22 passes through the lower surface of the cylinder 21, and a third spring 23 is arranged inside the cylinder 21. One end of the third spring 23 is fixedly connected to the slide rod 22, and the other end of the third spring 23 is fixedly connected to the inner wall of the cylinder 21. A through groove 20 cooperating with the slide rod 22 is penetrated through the lower clamp 12, and the inner diameter of the through groove 20 is larger than the outer diameter of the cylinder 21.

[0063] Specifically, when the support plate 16 slides downward, it will drive the cylinder 21 and the sliding rod 22 to move downward synchronously, and the sliding rod 22 passes through the through slot 20 and abuts against the top of the connecting rod 1, and the support plate 16 abuts against the lower clamp 12. At the same time, the sliding rod 22 is retracted into the interior of the cylinder 21 and compresses the third spring 23. The restoring elastic force of the third spring 23 makes the sliding rod 22 fit tightly against the connecting rod 1, so that the structures such as the support plate 16, the upper clamp 17 and the lower clamp 12 will not deflect at will.

[0064] During specific use, a protective protrusion or other structure may be provided at a position corresponding to the through slot 20 at the top end of the connecting rod 1 to increase the friction between the sliding rod 22 and the connecting rod 1 .

[0065] In order to install the insulator on the cross arm, a threaded rod 26 is fixedly connected to the bottom end of the connecting rod 1 , a gasket 29 is sleeved on the threaded rod 26 , and a second nut 27 is threadedly connected to the threaded rod 26 .

[0066] Specifically, the gasket 29 is mounted on the threaded rod 26, the threaded rod 26 is inserted into the mounting hole of the crossarm from top to bottom, the gasket 29 abuts against the top of the crossarm, and then the second nut 27 is connected to the threaded rod 26, the second nut 27 is rotated, and the second nut 27 cooperates with the gasket 29 to fix the connecting rod 1 on the crossarm.

[0067] In order to prevent the second nut 27 from loosening, a slot 28 is provided on the second nut 27. The inner wall of the slot 28 is hexagonal or quadrilateral, which can be adjusted according to the specific usage. Both sides of the bottom end of the connecting rod 1 are provided with a plane cutout (refer to Figure 2 ). A limit assembly is provided between the connecting rod 1 and the slot 28 to prevent the second nut 27 from rotating at will, and the limit assembly includes a second spring 19, a first U-shaped clip 30, a second U-shaped clip 31, a slide plate 32 and a square tube 33. The first U-shaped clip 30 is clamped at the bottom end of the connecting rod 1, the second U-shaped clip 31 is clamped inside the slot 28, the square tube 33 is fixedly connected to the first U-shaped clip 30, the first U-shaped clip 30 and the square tube 33 are L-shaped, the slide plate 32 is fixedly connected to the second U-shaped clip 31, the second U-shaped clip 31 and the slide plate 32 are L-shaped, one end of the slide plate 32 away from the second U-shaped clip 31 is slidably arranged inside the square tube 33, the second spring 19 is located inside the square tube 33, one end of the second spring 19 is fixedly connected to the slide plate 32, and the other end of the second spring 19 is fixedly connected to the inner wall of the square tube 33.

[0068] By setting a limiting component, after the second nut 27 is rotated, the second U-shaped card 31 is aligned with the position of the card slot 28, the second U-shaped card 31 is held, and the first U-shaped card 30 is pulled upward, and the first U-shaped card 30 drives the square tube 33 to slide upward on the slide plate 32, so that the first U-shaped card 30 corresponds to the bottom end of the connecting rod 1, and then the limiting component is pushed toward the connecting rod 1, the second U-shaped card 31 is clamped in the inside of the card slot 28, the first U-shaped card 30 is clamped at the bottom end of the connecting rod 1, and the square tube 33 can abut against the edge of the cross arm, thereby completing the limitation of the second nut 27 to prevent loosening.

[0069] Working principle: Pass the connecting rod 1 through the porcelain body 2, then connect the first nut 3 with the connecting rod 1 from the bottom of the porcelain body 2, rotate the first nut 3, and fix the porcelain body 2 through the cooperation of the first nut 3 and the fixing sleeve 24 to complete the assembly of the connecting rod 1 and the porcelain body 2.

[0070] Next, put the gasket 29 on the threaded rod 26, insert the threaded rod 26 into the mounting hole of the crossarm from top to bottom, and the gasket 29 abuts against the top of the crossarm. Then, connect the second nut 27 with the threaded rod 26, rotate the second nut 27, and fix the connecting rod 1 on the crossarm through the cooperation between the second nut 27 and the gasket 29.

[0071] After the second nut 27 is rotated, the second U-shaped card 31 is aligned with the position of the card slot 28. Hold the second U-shaped card 31 and pull the first U-shaped card 30 upward. The first U-shaped card 30 drives the square tube 33 to slide upward on the slide plate 32, so that the first U-shaped card 30 corresponds to the bottom end of the connecting rod 1. Then, the limiting assembly is pushed toward the connecting rod 1. The second U-shaped card 31 is clamped in the inside of the card slot 28, the first U-shaped card 30 is clamped at the bottom end of the connecting rod 1, and the square tube 33 can abut against the edge of the cross arm, thereby completing the limiting of the second nut 27 to prevent loosening.

[0072] The lower clamp 12 is rotated to adjust different angles to accommodate cables in different directions. The cable is then placed into the lower clamp 12 and abutted against the support plate 16. The upper clamp 17 is installed on the lower clamp 12 to complete the connection between the insulator and the cable.

[0073] When the cable is fixed between the upper clamp 17 and the lower clamp 12, the cable will squeeze the support plate 16 to slide downward, and at the same time drive the block 9 to slide downward inside the inner cavity 8 through the square rod 14. When the block 9 slides downward inside the inner cavity 8, the gas in the lower half of the inner cavity 8 will be pressed into the second gas groove 10, so that the second slider 11 slides outward and abuts against the bottom of the first nut 3, completing the limit of the first nut 3 to prevent loosening; and when the block 9 slides downward, the gas inside the first gas groove 6 will be sucked, so that the first slider 7 slides toward the square rod 14, and the first slider 7 is out of contact with the inner wall of the rotating sleeve 4, releasing the limit on the rotating sleeve 4, so that the rotating sleeve 4 can rotate outside the connecting rod 1, so that the waterproof sheet 5 can rotate under the action of external wind force, improving the waterproof effect.

[0074] When the block 9 slides downward, the first spring 15 is stretched, and the restoring elastic force of the first spring 15 reacts on the cable through the support plate 16, and cooperates with the upper clamp 17 and the lower clamp 12 to improve the stability of the cable fixation.

[0075] When the support plate 16 slides downward, it will drive the cylinder 21 and the slide rod 22 to move downward synchronously, and the slide rod 22 passes through the through slot 20 and abuts against the top of the connecting rod 1, and the support plate 16 abuts against the lower clamp 12. At the same time, the slide rod 22 is retracted into the inside of the cylinder 21 and compresses the third spring 23. The restoring elastic force of the third spring 23 makes the slide rod 22 fit tightly against the connecting rod 1, so that the structures such as the support plate 16, the upper clamp 17 and the lower clamp 12 will not deflect at will.

[0076] When disassembling, remove the upper clamp 17 from the lower clamp 12, then take the cable out of the lower clamp 12, the cable is out of contact with the support plate 16, and the reset elastic force of the first spring 15 drives the block 9 to slide upward and reset. When the block 9 slides upward inside the inner cavity 8, the gas inside the second gas groove 10 will be sucked, so that the second slider 11 is recovered to the inside of the second gas groove 10, and the limit on the first nut 3 is released, which is convenient for disassembly; and when the block 9 slides upward, the gas in the upper half of the inner cavity 8 flows back to the inside of the first gas groove 6, so that the first slider 7 slides toward the rotating sleeve 4, and the first slider 7 abuts against the inner wall of the rotating sleeve 4, realizing the limit on the rotating sleeve 4, preventing the rotating sleeve 4 and the waterproof sheet 5 from rotating at will during the disassembly and assembly process. Then remove the limit assembly and rotate the second nut 27 in the opposite direction.

Claims

1. A waterproof high-voltage porcelain insulator for preventing rainwater from penetrating into the interior of a porcelain part, comprising a connecting rod (1), characterized in that: The middle section of the connecting rod (1) is sleeved with a ceramic body (2), and a first nut (3) for fastening the ceramic body (2) is threadedly connected to the connecting rod (1), and the first nut (3) is located inside the ceramic body (2); A rotating sleeve (4) is arranged above the porcelain body (2), and the rotating sleeve (4) is rotatably connected to the outside of the connecting rod (1). A waterproof sheet (5) is fixedly connected to the outside of the rotating sleeve (4) for preventing rainwater from penetrating into the inside of the porcelain body (2). An inner cavity (8) is provided inside the connecting rod (1). A second air groove (10) is provided on the outer wall of the connecting rod (1). The second air groove (10) is connected to the bottom end of the inner cavity (8). A second slider (11) for limiting the position of the first nut (3) is slidably arranged inside the second air groove (10). A first air groove (6) is provided on the outer wall of the connecting rod (1). The first air groove (6) is connected to the inner cavity (8). A first slider (7) for limiting the position of the rotating sleeve (4) is slidably arranged inside the first air groove (6). A block (9) is slidably arranged inside the inner cavity (8). The block (9) is located between the first air groove (6) and the second air groove (10). A lower clamp (12) is rotatably provided at the top of the connecting rod (1), a sliding hole (13) is provided on the upper surface of the lower clamp (12), the bottom end of the sliding hole (13) passes through the top inner wall of the inner cavity (8), the sliding hole (13) is connected to the inner cavity (8), a square rod (14) is slidably provided inside the sliding hole (13), and the block (9) is rotatably connected to the square rod (14).

2. A waterproof high-voltage porcelain insulator for preventing rainwater from penetrating into the interior of a porcelain part according to claim 1, characterized in that: A first spring (15) is sleeved on the outside of the square rod (14), the upper end of the first spring (15) abuts against the top of the inner cavity (8), and the lower end of the first spring (15) abuts against the block (9).

3. A waterproof high-voltage porcelain insulator for preventing rainwater from penetrating into the interior of the porcelain part according to claim 1, characterized in that: The outside of the connecting rod (1) is fixedly connected with a fixing sleeve (24), the fixing sleeve (24) is located above the porcelain body (2), and the rotating sleeve (4) is rotatably connected to the top of the fixing sleeve (24).

4. A waterproof high-voltage porcelain insulator for preventing rainwater from penetrating into the interior of a porcelain part according to claim 1, characterized in that: A guide bar (25) is fixedly connected to the outer wall of the rotating sleeve (4); the guide bar (25) is arranged obliquely; a plurality of the guide bars (25) are arranged; and the plurality of guide bars (25) are evenly distributed around the rotating sleeve (4).

5. A waterproof high-voltage porcelain insulator for preventing rainwater from penetrating into the interior of the porcelain part according to claim 1, characterized in that: The top of the square rod (14) is fixedly connected with a support plate (16), the support plate (16) is arc-shaped, and the upper surface of the support plate (16) is a concave surface, and the top of the lower clamp (12) is matched with an upper clamp (17).

6. A waterproof high-voltage porcelain insulator for preventing rainwater from penetrating into the interior of the porcelain part according to claim 5, characterized in that: The lower surface of the support plate (16) is fixedly connected with a cylinder (21), a slide rod (22) is slidably arranged inside the cylinder (21), the slide rod (22) passes through the lower surface of the cylinder (21), a third spring (23) is arranged inside the cylinder (21), one end of the third spring (23) is fixedly connected to the slide rod (22), and the other end of the third spring (23) is fixedly connected to the inner wall of the cylinder (21), and a through groove (20) cooperating with the slide rod (22) is penetrated and opened on the lower clamp (12).

7. A waterproof high-voltage porcelain insulator for preventing rainwater from penetrating into the interior of the porcelain part according to claim 1, characterized in that: A limiting ring (18) is fixedly connected to the outer ring of the waterproof sheet (5).

8. The waterproof high-voltage porcelain insulator for preventing rainwater from penetrating into the interior of the porcelain part according to claim 1, characterized in that: The bottom end of the connecting rod (1) is fixedly connected to a threaded rod (26), a gasket (29) is sleeved on the threaded rod (26), and a second nut (27) is threadedly connected to the threaded rod (26).

9. A waterproof high-voltage porcelain insulator for preventing rainwater from penetrating into the interior of the porcelain part according to claim 8, characterized in that: The second nut (27) is provided with a slot (28), and a limiting component is provided between the connecting rod (1) and the slot (28) to prevent the second nut (27) from rotating at will.

10. A waterproof high-voltage porcelain insulator for preventing rainwater from penetrating into the interior of the porcelain part according to claim 9, characterized in that: The limiting assembly comprises a second spring (19), a first U-shaped clamp (30), a second U-shaped clamp (31), a slide plate (32) and a square tube (33); the first U-shaped clamp (30) is clamped at the bottom end of the connecting rod (1); the second U-shaped clamp (31) is clamped inside the clamping groove (28); the square tube (33) is fixedly connected to the first U-shaped clamp (30); the first U-shaped clamp (30) and the square tube (33) are arranged in an L shape; the slide plate (32) is fixedly connected to the second U-shaped clamp (31); the second U-shaped clamp (31) and the slide plate (32) are arranged in an L shape; one end of the slide plate (32) away from the second U-shaped clamp (31) is slidably arranged inside the square tube (33); the second spring (19) is located inside the square tube (33); one end of the second spring (19) is fixedly connected to the slide plate (32); and the other end of the second spring (19) is fixedly connected to the inner wall of the square tube (33).

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