High-strength anti-aging porcelain outer sleeve suspension insulator

Abstract

The application discloses a high-strength anti-aging porcelain outer sleeve suspension insulator and relates to the technical field of insulators. The high-strength anti-aging porcelain outer sleeve suspension insulator comprises a core column, a plurality of umbrella discs are fixedly connected to the core column, the umbrella discs are equidistantly distributed, one end of the core column is fixedly connected with a first metal sleeve, one end, away from the core column, of the first metal sleeve is fixedly connected with an iron cap, a first clamping groove is formed in the iron cap, a second clamping groove is formed in one end, away from the first metal sleeve, of the iron cap, the second clamping groove is in communication with the first clamping groove, elastic sheets are fixedly connected to the inner walls on the two sides of the first clamping groove, a ring groove is formed in the iron cap, and the ring groove surrounds the outside of the first clamping groove. When the ball head enters the inside of the first clamping groove, the reset elastic force of the first spring makes the arc block reset, thereby fixing the position of the ball head and preventing the ball head from being taken out of the first clamping groove, and the use strength of the suspension insulator is improved.

Description

Technical Field

[0001] This invention relates to the field of suspension insulator technology, and in particular to a high-strength, anti-aging porcelain-insulated suspension insulator. Background Technology

[0002] An insulator is a device installed between conductors at different potentials or between a conductor and a grounding component, capable of withstanding voltage and mechanical stress. Insulators come in many types and shapes. Although different types of insulators vary considerably in structure and appearance, they all consist of two main parts: insulating components and connecting hardware. An insulator is a special type of insulating control that plays a crucial role in overhead transmission lines. In earlier times, insulators were mostly used on utility poles. Gradually, they evolved into the use of disc-shaped insulators hung at one end of high-voltage power line towers to increase creepage distance; these are typically made of glass or ceramic.

[0003] To prevent the ball head of the suspension insulator from detaching from the cap socket, existing suspension insulators incorporate an anti-detachment device in the cap, consisting of a W-type or R-type spring pin made of stainless steel flat steel. However, due to the harsh natural environment of high-voltage power lines, which are exposed to alternating strong winds such as hurricanes, there is a safety hazard that the ball head may detach from the cap socket.

[0004] Therefore, it is necessary to propose a high-strength, anti-aging porcelain-coated suspension insulator to solve the above problems. Summary of the Invention

[0005] The purpose of this invention is to provide a high-strength, anti-aging porcelain-insulated suspension insulator to solve the problem mentioned in the background section of the prior art where the suspension insulator has an anti-detachment device in the iron cap consisting of a W-type or R-type spring pin made of stainless steel flat steel. However, because high-voltage power lines are located in harsh natural environments in the field for extended periods, there is a safety hazard that the ball head of the insulator may detach from the cap socket of the iron cap body under the alternating effects of strong winds such as hurricanes.

[0006] To achieve the above objectives, the present invention provides the following technical solution: a high-strength, anti-aging porcelain-insulated suspension insulator, comprising a core post, wherein multiple umbrella discs are fixedly connected to the core post and are distributed at equal intervals; a first metal sleeve is fixedly connected to one end of the core post; an iron cap is fixedly connected to the end of the first metal sleeve away from the core post; a first slot is formed inside the iron cap; a second slot is formed at the end of the iron cap away from the first metal sleeve; the second slot communicates with the first slot; elastic sheets are fixedly connected to the inner walls on both sides of the first slot; an annular groove is formed inside the iron cap and surrounds the outside of the first slot; a fixing block is fixedly connected to the middle section of the annular groove; and limit components are provided at both ends of the annular groove.

[0007] Preferably, the limiting component includes an arc block, a first oblique cut, and a first spring. The arc block is slidably connected inside the annular groove, the first spring is located inside the annular groove, one end of the first spring is fixedly connected to a fixing block, the other end of the first spring is fixedly connected to the arc block, and the first oblique cut is opened on the end of the arc block away from the first spring.

[0008] Preferably, the inner wall of the annular groove is provided with two arc grooves, which are symmetrically distributed. A slider is fixedly connected to the side wall of each of the two arc blocks, and the slider is slidably connected inside the corresponding arc groove.

[0009] Preferably, a second metal sleeve is fixedly connected to the end of the core column away from the first metal sleeve, and a threaded rod is fixedly connected to the end of the second metal sleeve away from the core column, with a nut threaded onto the threaded rod.

[0010] Preferably, both ends of the core column are rotatably connected to rotating rings, and a U-shaped frame is fixedly connected between the two rotating rings.

[0011] Preferably, the side wall of the U-shaped frame is provided with square grooves, and there are multiple square grooves, each corresponding to a multiple umbrella tray. Square sleeves are fixedly connected to the outer wall of the U-shaped frame, and there are multiple square sleeves, which are distributed corresponding to the square grooves.

[0012] Preferably, a post is inserted into the inside of the square groove, and the post extends into the inside of the square sleeve. A slot is provided inside the post, and a positioning component that mates with the slot is provided on the top of the square sleeve.

[0013] Preferably, the positioning component includes an insert block, a pull plate, and a second spring. The insert block is slidably connected to the top of the square sleeve and inserted into the inside of the slot. The pull plate is fixedly connected to the top of the insert block. The second spring is fitted onto the outside of the insert block, with one end of the second spring fixedly connected to the pull plate and the other end of the second spring fixedly connected to the outer wall of the square sleeve.

[0014] Preferably, the bottom of the insert block has a third oblique cut, and the end of the insert post located inside the square sleeve has a second oblique cut, the second oblique cut and the third oblique cut are matched.

[0015] Preferably, a support plate is fixedly connected to one end of the insert near the umbrella disc, and a brush sleeve is fixedly connected to the side of the support plate facing away from the insert. The brush sleeve has a U-shaped structure and cleans the umbrella disc.

[0016] The technical effects and advantages of this invention are as follows:

[0017] 1. Place the ball head between the two first oblique cuts and press it into the first slot, so that the arc block slides towards the fixed block inside the annular groove. At the same time, the first spring is compressed and retracted. When the ball head enters the first slot, the return force of the first spring resets the arc block, thereby fixing the position of the ball head and preventing the ball head from coming out of the first slot, thus improving the service strength of the suspension insulator.

[0018] 2. The insert is inserted into the square sleeve through the square slot. During the movement of the insert, the second and third oblique cuts are used to squeeze the insert block to slide upward. When the insert block corresponds to the position of the slot, the return force of the second spring drives the insert block to slide downward and insert into the slot, thereby fixing the position of the insert.

[0019] 3. When it is necessary to remove the brush sleeve, pull the insert block upwards using the pull plate. The insert block will be pulled out from inside the slot, releasing the fixation on the position of the insert post and making it easier to pull out the insert post.

[0020] 4. Due to the influence of outdoor wind, the U-shaped frame rotates around the outside of the suspension insulator through the swivel ring, and the brush sleeve cleans the umbrella disc to avoid dust accumulation and prevent the suspension insulator from aging. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of the high-strength anti-aging porcelain-insulated suspension insulator structure of the present invention.

[0022] Figure 2 This is a schematic diagram of the first metal sleeve, iron cap, and first slot structure of the present invention.

[0023] Figure 3 This is a schematic diagram of the iron cap, first slot, fixing block, arc block and first spring structure of the present invention.

[0024] Figure 4 This is a schematic diagram of the rotating ring, U-shaped frame, and brush sleeve structure of the present invention.

[0025] Figure 5 For the present invention Figure 4 Enlarged structural diagram at point A in the middle.

[0026] In the diagram: 1. Core post; 2. Umbrella disc; 3. First metal sleeve; 4. Iron cap; 5. First slot; 6. Ring groove; 7. Fixing block; 8. Arc block; 9. First oblique cut; 10. First spring; 11. Elastic sheet; 12. Arc groove; 13. Slider; 14. Second metal sleeve; 15. Threaded rod; 16. Nut; 17. Rotary ring; 18. U-shaped frame; 19. Square groove; 20. Square sleeve; 21. Insert post; 22. Insert block; 23. Pull plate; 24. Second spring; 25. Slot; 26. Second oblique cut; 27. Third oblique cut; 28. Support plate; 29. ​​Brush sleeve; 30. Second slot. Detailed Implementation

[0027] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0028] This invention provides, for example Figures 1-5 The high-strength, anti-aging porcelain-insulated suspension insulator shown includes a core post 1, on which multiple umbrella discs 2 are fixedly connected, and the multiple umbrella discs 2 are evenly distributed. The multiple umbrella discs 2 and the core post 1 form a porcelain-insulated suspension insulator.

[0029] One end of the core post 1 is fixedly connected to a first metal sleeve 3. The end of the first metal sleeve 3 away from the core post 1 is fixedly connected to an iron cap 4. The iron cap 4 has a first slot 5 inside, and a second slot 30 at the end away from the first metal sleeve 3, communicating with the first slot 5. Elastic sheets 11 are fixedly connected to the inner walls of both sides of the first slot 5. When the ball head is inserted into the first slot 5, the elastic sheets 11 deform adaptively and press against the outside of the ball head, thus preventing the ball head from detaching. The iron cap 4 has an annular groove 6 inside, surrounding the outside of the first slot 5. A fixing block 7 is fixedly connected to the middle section of the annular groove 6.

[0030] To improve the stability of ball head positioning, limit components are provided at both ends of the annular groove 6. The limit components include an arc block 8, a first oblique cut 9, and a first spring 10. The arc block 8 is slidably connected inside the annular groove 6. The first spring 10 is located inside the annular groove 6, with one end fixedly connected to the fixing block 7 and the other end fixedly connected to the arc block 8. The first oblique cut 9 is located at the end of the arc block 8 furthest from the first spring 10, facilitating the ball head's insertion into the first retaining groove 5.

[0031] During operation, the ball head is placed between the two first oblique cuts 9 and pressed into the first slot 5, causing the arc block 8 to slide towards the fixing block 7 inside the annular groove 6. At the same time, the first spring 10 is compressed and retracted. When the ball head enters the first slot 5, the restoring force of the first spring 10 resets the arc block 8, thereby fixing the position of the ball head and preventing it from coming out of the first slot 5, thus improving the service strength of the suspension insulator.

[0032] To improve the stability of the arc block 8 sliding inside the annular groove 6, two arc grooves 12 are provided on the inner wall of the annular groove 6, and the two arc grooves 12 are symmetrically distributed. A slider 13 is fixedly connected to the side wall of each of the two arc blocks 8, and the slider 13 is slidably connected inside the corresponding arc groove 12.

[0033] A second metal sleeve 14 is fixedly connected to the end of the core post 1 furthest from the first metal sleeve 3. A threaded rod 15 is fixedly connected to the end of the second metal sleeve 14 furthest from the core post 1, and a nut 16 is threaded onto the threaded rod 15. In actual use, the bottom of the core post 1 is fixed by the cooperation of the threaded rod 15 and the nut 16.

[0034] Both ends of the core column 1 are rotatably connected to rotating rings 17, and a U-shaped frame 18 is fixedly connected between two rotating rings 17. Square slots 19 are formed on the side walls of the U-shaped frame 18, with multiple slots 19 corresponding to multiple umbrella discs 2. Square sleeves 20 are fixedly connected to the outer wall of the U-shaped frame 18, with multiple sleeves 20 distributed corresponding to the square slots 19. Affected by outdoor wind, the U-shaped frame 18 rotates around the outside of the suspension insulator via the rotating rings 17. In practical use, a wind-facing plate can also be installed on the U-shaped frame 18 to increase the stress-bearing area.

[0035] A pin 21 is inserted into the inside of the square groove 19, and the pin 21 extends into the inside of the square sleeve 20. A slot 25 is provided inside the pin 21. To improve the stability of the connection between the pin 21 and the U-shaped frame 18, a positioning component that mates with the slot 25 is provided on the top of the square sleeve 20.

[0036] The positioning assembly includes an insert block 22, a pull plate 23, and a second spring 24. The insert block 22 is slidably connected to the top of the square sleeve 20 and is inserted into the inside of the slot 25. The pull plate 23 is fixedly connected to the top of the insert block 22. The second spring 24 is fitted onto the outside of the insert block 22. One end of the second spring 24 is fixedly connected to the pull plate 23, and the other end of the second spring 24 is fixedly connected to the outer wall of the square sleeve 20.

[0037] The bottom of the insert block 22 is provided with a third oblique cut 27, and the end of the insert post 21 located inside the square sleeve 20 is provided with a second oblique cut 26. The second oblique cut 26 and the third oblique cut 27 are matched.

[0038] A support plate 28 is fixedly connected to one end of the insert post 21 near the umbrella disc 2. A brush sleeve 29 is fixedly connected to the side of the support plate 28 facing away from the insert post 21. The brush sleeve 29 has a U-shaped structure and cleans the umbrella disc 2.

[0039] During operation, the insert 21 is inserted into the square sleeve 20 through the square groove 19. As the insert 21 moves, the second oblique cut 26 and the third oblique cut 27 work together to push the insert block 22 to slide upward. When the insert block 22 corresponds to the position of the slot 25, the reset force of the second spring 24 drives the insert block 22 to slide downward and insert into the slot 25, thereby fixing the position of the insert 21.

[0040] When the brush sleeve 29 needs to be removed, pull the insert block 22 upwards using the pull plate 23. The insert block 22 is pulled out from inside the slot 25, releasing the fixation on the position of the insert post 21, making it easier to pull out the insert post 21. When the insert post 21 moves the brush sleeve 29 towards the umbrella disc 2, the softness of the brush bristles of the brush sleeve 29 does not affect the extraction of the insert post 21. When the brush sleeve 29 needs to be cleaned or replaced, it is not necessary to disassemble the rotating ring 17 and the U-shaped frame 18.

[0041] Specifically, due to the influence of outdoor wind, the U-shaped frame 18 rotates around the outside of the suspension insulator via the rotating ring 17, and the brush sleeve 29 cleans the umbrella disc 2 to prevent dust accumulation and prevent the suspension insulator from aging.

Claims

1. A high-strength, anti-aging porcelain-insulated suspension insulator, comprising a core post (1), characterized in that: A parasol disc (2) is fixedly connected to the core column (1). Multiple parasol discs (2) are provided and distributed at equal distances. A first metal sleeve (3) is fixedly connected to one end of the core column (1). An iron cap (4) is fixedly connected to the end of the first metal sleeve (3) away from the core column (1). A first slot (5) is provided inside the iron cap (4). A second slot (30) is provided at the end of the iron cap (4) away from the first metal sleeve (3). The second slot (30) communicates with the first slot (5). Elastic sheets (11) are fixedly connected to the inner walls on both sides of the first slot (5). An annular groove (6) is provided inside the iron cap (4). The annular groove (6) surrounds the outside of the first slot (5). A fixing block (7) is fixedly connected to the middle section of the annular groove (6). Limiting components are provided at both ends of the annular groove (6). The limiting component includes an arc block (8), a first oblique cut (9), and a first spring (10). The arc block (8) is slidably connected inside the annular groove (6). The first spring (10) is located inside the annular groove (6). One end of the first spring (10) is fixedly connected to the fixing block (7), and the other end of the first spring (10) is fixedly connected to the arc block (8). The first oblique cut (9) is opened on the end of the arc block (8) away from the first spring (10). The inner wall of the annular groove (6) is provided with an arc groove (12). There are two arc grooves (12) and the two arc grooves (12) are symmetrically distributed. The side walls of the two arc blocks (8) are fixedly connected with sliders (13), and the sliders (13) are slidably connected inside the corresponding arc grooves (12). Both ends of the core column (1) are rotatably connected to a rotating ring (17), and a U-shaped frame (18) is fixedly connected between the two rotating rings (17). The side wall of the U-shaped frame (18) is provided with a square groove (19), and there are multiple square grooves (19) corresponding to multiple umbrella trays (2). A square sleeve (20) is fixedly connected to the outer wall of the U-shaped frame (18), and there are multiple square sleeves (20) corresponding to the square grooves (19). A pin (21) is inserted into the inside of the square groove (19), and the pin (21) extends into the inside of the square sleeve (20). A slot (25) is provided inside the pin (21), and a positioning component that cooperates with the slot (25) is provided on the top of the square sleeve (20). The positioning component includes a plug (22), a pull plate (23), and a second spring (24). The plug (22) is slidably connected to the top of the square sleeve (20) and inserted into the inside of the slot (25). The pull plate (23) is fixedly connected to the top of the plug (22). The second spring (24) is fitted onto the outside of the plug (22). One end of the second spring (24) is fixedly connected to the pull plate (23), and the other end of the second spring (24) is fixedly connected to the outer wall of the square sleeve (20).

2. The high-strength anti-aging porcelain-insulated suspension insulator according to claim 1, characterized in that: The end of the core column (1) away from the first metal sleeve (3) is fixedly connected to a second metal sleeve (14), and the end of the second metal sleeve (14) away from the core column (1) is fixedly connected to a threaded rod (15), and a nut (16) is threadedly connected to the threaded rod (15).

3. A high-strength, anti-aging porcelain-insulated suspension insulator according to claim 1, characterized in that: The bottom of the insert (22) is provided with a third oblique cut (27), and the end of the insert (21) located inside the square sleeve (20) is provided with a second oblique cut (26), and the second oblique cut (26) cooperates with the third oblique cut (27).

4. A high-strength, anti-aging porcelain-insulated suspension insulator according to claim 3, characterized in that: A support plate (28) is fixedly connected to one end of the insert (21) near the umbrella disc (2). A brush sleeve (29) is fixedly connected to the side of the support plate (28) facing away from the insert (21). The brush sleeve (29) has a U-shaped structure and cleans the umbrella disc (2).

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