Waterproof stringing porcelain bottle

Abstract

The invention discloses a waterproof stringing porcelain insulator, and relates to the field of insulators, the waterproof stringing porcelain insulator comprises a porcelain column mounted on a support plate and a porcelain skirt on the outer side of the porcelain column, a support table is fixed at the top end of the porcelain column, the support table is used for supporting a cable, a lantern ring is arranged between the support table and the porcelain skirt, and the lantern ring sleeves the outer side of the porcelain column. An annular groove is formed in the outer side of the lantern ring, and a binding wire is wound between the lantern ring and the cable. The annular groove formed in the outer side of the lantern ring provides a special fixing hole for an insulating binding wire (such as a glass fiber binding wire), so that the binding wire is always in an insulating state, radial sliding of the binding wire on the surface of the lantern ring can be effectively limited, and the situation that the binding wire is directly connected with the porcelain bottle, and consequently the porcelain bottle is abraded is avoided; the fitting degree with the cable can be kept all the time, and the problem of local stress concentration caused by deviation of the binding wire in a traditional groove-free design is solved.

Description

Technical Field

[0001] This invention relates to the field of insulators, and particularly to a waterproof overhead line insulator. Background Technology

[0002] Porcelain insulators are insulating devices used for overhead lines in power systems. They are scientifically known as insulators and are made of electrical ceramics. They are mainly used to support and isolate conductors from towers, preventing current from being directly conducted to the ground.

[0003] Traditional overhead line insulators use cable ties to secure the insulator and the supported cables. However, since the cable ties are wrapped directly around the outside of the insulator, when the cables sway due to wind, they rub against the outside of the insulator, causing damage.

[0004] Therefore, it is necessary to propose a waterproof ceramic insulator to solve the above problems. Summary of the Invention

[0005] The purpose of this invention is to provide a waterproof cable insulator to solve the problem that traditional cable insulators use cable ties to connect the insulator and the supported cable in order to fix the insulator and the cable. However, the cable ties are directly wrapped around the outside of the insulator. When the cable is affected by wind and shakes, it will rub against the outside of the insulator, causing damage to the insulator.

[0006] To achieve the above objectives, the present invention provides the following technical solution: a waterproof cable tray ceramic insulator, comprising a ceramic column mounted on a support plate, a ceramic skirt on the outside of the ceramic column, a support platform fixed at the top of the ceramic column, the support platform being used to support cables, a collar being provided between the support platform and the ceramic skirt, the collar being sleeved on the outside of the ceramic column, and an annular groove being provided on the outside of the collar, and a binding wire being wound between the collar and the cables;

[0007] Both sides of the collar are fixed with fixing rods, and support clips are slidably mounted on the two fixing rods. The support clips are snapped into the bottom end of the cable, and the cable tie is placed between the two support clips.

[0008] A sleeve is fitted at the bottom of the ceramic column, and a threaded rod is fixed in the middle of the sleeve. The threaded rod is threadedly connected to the middle of the ceramic column. The bottom end of the threaded rod extends out of the support plate, and a waterproof sleeve is fitted on the outside of the extended end. The waterproof sleeve and the outside of the sleeve are connected by a fixing mechanism.

[0009] The threaded rod, ceramic column, and collar are all provided with corresponding positioning holes on their outer sides, and fastening screws are provided between the corresponding positioning holes.

[0010] Preferably, the binding wire is wound inside the annular groove, and sliding sleeves are slidably provided on the outer sides of the two fixing rods. The top of the sliding sleeve is elastically telescopically connected to a telescopic rod, and the support clip is fixed to the top of the corresponding telescopic rod.

[0011] The bottom end of the sliding sleeve is provided with a fixing screw, and one end of the fixing screw is pressed against the surface of the fixing rod.

[0012] Preferably, the bottom end of the ceramic column is provided with a central groove, the central groove is threadedly engaged with the threaded rod, the upper end of the threaded rod is provided with a smooth end, and the positioning hole is provided on the smooth end.

[0013] Preferably, the fixing mechanism includes a fixing bolt, and a first connecting plate and a second connecting plate are fixed to the outer sides of the sleeve and the waterproof sleeve, respectively. The first connecting plate and the second connecting plate are provided with fixing holes for the fixing bolt to pass through, and the fixing bolt is disposed between two corresponding fixing holes.

[0014] A waterproof cable-stayed ceramic insulator according to claim 1, characterized in that: a shielding plate is fixed to the bottom outer side of the ceramic column, and the bottom end of the shielding plate is in contact with the top end of the sleeve.

[0015] Preferably, the bottom end of the shielding plate and the top end of the sleeve are provided with slots, and a sealing ring is embedded between the two slots.

[0016] Preferably, the top of the support platform is provided with a wire groove, both ends of which are connected to an extension groove, and the end of the extension groove away from the wire groove extends to both sides.

[0017] Both the wire groove and the expansion groove are provided with an insulating and anti-slip layer.

[0018] Preferably, the support plate has a through groove for the threaded rod to pass through. The threaded rod passes through the through groove, and a washer and a nut are provided on the outer side of the through end. The washer and nut are both located on the outer side of the waterproof casing.

[0019] Preferably, a fixing plate is fixed inside the waterproof casing, and the bottom end of the threaded rod passes through the center of the fixing plate.

[0020] Preferably, an insulating pad is fixed to the inner ring of the collar.

[0021] The technical effects and advantages of this invention are as follows:

[0022] 1. The annular groove on the outside of the collar provides a dedicated fixing position for the insulating binding wire (such as fiberglass binding wire), ensuring that the binding wire is always in an insulating state. This effectively limits the radial sliding of the binding wire on the collar surface, preventing the binding wire from directly connecting to the porcelain insulator and causing wear on the insulator. When the binding wire is wrapped in the groove, it can always maintain a close fit with the cable, avoiding the localized stress concentration caused by binding wire misalignment in traditional groove-less designs.

[0023] 2. The threaded rod and ceramic column are connected by a central groove thread, and the sleeve is fixed to the threaded rod, forming an integrated structure of ceramic column-threaded rod-sleeve. Compared with traditional pure electric ceramic insulators, the overall structural strength is significantly improved, and the vibration and impact resistance is stronger. Components such as ceramic column, sleeve, threaded rod, and collar can be disassembled and separated. When a component is damaged, it is not necessary to replace the entire ceramic insulator; only the damaged component needs to be replaced, greatly reducing later maintenance costs and resource waste. The design of the positioning hole and fastening screws ensures stable fixation after the ceramic column height is adjusted and facilitates precise alignment during disassembly and assembly, improving maintenance efficiency.

[0024] 3. By rotating the ceramic column or threaded rod, the ceramic column can be moved up and down along the axial direction of the threaded rod through the threaded transmission, and the height of the support platform can be flexibly adjusted to meet the insulation requirements of different distances between the cable and the support plate. It is suitable for various power line installation scenarios and has greater versatility.

[0025] 4. The fixing rods on both sides of the collar provide an installation base for the support clip, allowing the support clip to be lifted from the bottom of the cable, forming a "top binding and bottom support" synergistic structure with the tie wire in the collar groove. This structure can simultaneously resist the vertical gravity of the cable (support clip lifting) and the horizontal wind force (tie wire binding + support clip limiting), avoiding cable displacement due to the limitations of a single fixing method (such as the tie wire being prone to swaying due to wind, or the support clip being prone to falling due to gravity). The sliding sleeve can slide along the length of the fixing rod to adjust the support position. Combined with the elastic design of the telescopic rod, it can adapt to the thermal expansion and contraction of the cable due to temperature changes. When the cable expands due to heat, the telescopic rod compresses; when it contracts due to cold, the telescopic rod rebounds, avoiding additional stress caused by rigid fixing.

[0026] 5. The shielding plate forms the "first line of defense," preventing rainwater and dust from falling into the gap between the ceramic column and the sleeve. The sealing ring embedded in its contact surface with the sleeve fills the tiny gaps through compression deformation, blocking water seepage from the contact surface. The waterproof sleeve completely covers the threaded rod extension, gasket, and nut, preventing rainwater splashing and moisture intrusion. The internal fixing plate not only prevents the threaded rod from shaking and widening the gaps, but also prevents condensation from dripping onto the metal parts. Multiple protections form a waterproof system without dead angles. At the same time, the connection between the waterproof sleeve and the sleeve increases the overall structural strength and stability. Attached Figure Description

[0027] Figure 1 This is a schematic diagram of the structure of the waterproof cable-stayed ceramic bottle of the present invention.

[0028] Figure 2 This is a schematic diagram of the collar structure of the present invention.

[0029] Figure 3 For the present invention Figure 1 Enlarged structural diagram at point A in the middle.

[0030] Figure 4 This is a schematic cross-sectional view of the ceramic column structure of the present invention.

[0031] Figure 5 For the present invention Figure 4 Enlarged diagram of point B in the middle.

[0032] Figure 6 This is a schematic diagram of the structure of the central groove of the present invention.

[0033] Figure 7 This is a schematic diagram of the threaded rod of the present invention.

[0034] Figure 8 This is a schematic diagram of the expansion slot structure of the present invention.

[0035] In the diagram: 1. Ceramic column; 2. Ceramic skirt; 3. Support platform; 4. Wire groove; 5. Collar; 6. Annular groove; 7. Positioning hole; 8. Support plate; 9. Sleeve; 10. Covering plate; 11. First connecting plate; 12. Second connecting plate; 13. Fixing bolt; 14. Waterproof sleeve; 15. Fixing rod; 16. Sliding sleeve; 17. Support clip; 18. Telescopic rod; 19. Fixing screw; 20. Sealing ring; 21. Washer; 22. Nut; 23. Center groove; 24. Threaded rod; 25. Smooth end; 26. Expansion groove; 27. Fixing plate. Detailed Implementation

[0036] This invention provides, for example Figures 1 to 8 The waterproof cable holder shown includes a ceramic column 1 installed on a support plate 8 and a ceramic skirt 2 on the outside of the ceramic column 1. Both the ceramic column 1 and the ceramic skirt 2 are made of high-strength electrical porcelain material and have a cylindrical hollow structure (with a central groove 23 at the bottom). They need to withstand the vertical load and horizontal tension of the cable, and also block the current conduction to achieve insulation and isolation between the cable and the support plate 8.

[0037] like Figure 1 As shown, the ceramic skirt 2 is integrally formed on the outside of the ceramic pillar 1, forming a ring-shaped umbrella structure. Multiple ceramic skirts 2 are arranged at equal intervals. By increasing the creepage distance (the path length of current leakage along the insulating surface) on the outer surface of the ceramic insulator, leakage caused by rainwater forming a continuous water film on the surface of the ceramic pillar 1 is prevented. At the same time, the umbrella-shaped structure can shield the components below (such as the collar 5 and the fixing rod 15), reducing direct rainwater erosion and further improving the waterproof effect.

[0038] This invention uses a cable fixing system to securely fix the cable to the top of the ceramic insulator, while avoiding direct friction between the cable and the ceramic component. The system also adapts to the thermal expansion and contraction of the cable through elastic adjustment. The cable fixing system mainly includes a support platform 3, a collar 5, a fixing rod 15, a support clip 17, and a binding wire. The binding wire can be made of fiberglass or other insulating materials.

[0039] The support platform 3 is fixed to the top of the ceramic column 1. It is a block structure with an arc-shaped groove on the top. The wire groove 4 opened at the top of the platform is precisely matched with the outer diameter of the cable to ensure that the cable is not easily shifted when placed.

[0040] like Figure 8 As shown, the extension slots 26 (extending to both sides from the end away from the cable tray 4) connected at both ends of the cable tray 4 provide more operating space when installing cables, making it easier for cables to be embedded into the cable tray 4, while avoiding hard contact between the cable edge and the support platform 3, which could damage the insulation layer. In addition, both the surface of the cable tray 4 and the extension slots 26 are provided with an insulating and anti-slip layer (such as a silicone rubber coating). The principle is that the insulating layer further strengthens the insulation isolation between the cable and the support platform 3, preventing leakage caused by accidental contact between the metal cable and the ceramic support platform 3 (such as cable shaking); the anti-slip layer increases the coefficient of friction, preventing the cable from sliding along the cable tray 4 under the thermal expansion and contraction caused by wind and temperature changes, thus improving the stability of the fixation.

[0041] like Figure 2 As shown, the collar 5 can be made of metal (with a certain degree of hardness), wrapped with an insulating pad, and fitted onto the outside of the ceramic post 1, located between the support platform 3 and the ceramic skirt 2. An insulating pad (such as a nitrile rubber pad) is fixed to the inner ring. The function of the insulating pad is to prevent the collar 5 (made of metal with a certain strength) from directly contacting the ceramic post 1. This prevents the collar 5 from scratching the surface of the ceramic post 1 and affecting its insulation, and also reduces vibration and friction between the collar 5 and the ceramic post 1 through elastic cushioning, extending the service life of the ceramic post 1. The annular groove 6 on the outside of the collar 5 is a dedicated fixing groove for the cable tie. The principle is that the cable tie (usually an insulating binding wire, such as fiberglass binding wire) is wound around the annular groove 6, preventing the cable tie from sliding on the surface of the collar 5, ensuring a uniform distribution of the binding force on the cable. At the same time, the groove restricts the radial displacement of the cable tie, preventing it from loosening due to long-term stress.

[0042] It should be noted that the collar 5 can be composed of two semicircular rings. After the two semicircular rings are fitted onto the outside of the ceramic column 1, the joint of the two semicircular rings is welded (or glued). Alternatively, a semicircular ring with a connecting structure can be used, such as adding connecting ears at both ends of the two semicircular rings and fixing the two corresponding connecting ears with fastening bolts (similar to a clamp mechanism), thereby completing the connection of the two semicircular rings. Since this is existing technology, it will not be described in detail.

[0043] like Figure 3As shown, both sides of the collar 5 are fixed with fixing rods 15. Support clips 17 are slidably mounted on the two fixing rods 15. The support clips 17 are engaged with the bottom end of the cable. The cable tie is placed between the two support clips 17 and is wound inside the annular groove 6. Sliding sleeves 16 are slidably mounted on the outer side of the two fixing rods 15. The top of the sliding sleeve 16 is elastically telescopically connected to a telescopic rod 18. The support clips 17 are fixed to the top of the corresponding telescopic rod 18. The bottom of the sliding sleeve 16 is provided with a fixing screw 19. One end of the fixing screw 19 is pressed against the surface of the fixing rod 15. The fixing screw 19 at the bottom of the sliding sleeve 16 (after being tightened, one end is pressed against the surface of the fixing rod 15) locks the position of the sliding sleeve 16 by friction to prevent loosening after adjustment.

[0044] The sliding sleeve 16 can slide along the length of the fixed rod 15. The elastic design of the telescopic rod 18 (a telescopic groove can be opened at the top of the sliding sleeve 16, and a spring is fixed at the bottom of the telescopic rod 18, with the spring fixedly connected inside the telescopic groove) can adapt to the thermal expansion and contraction of the cable due to temperature changes (when the cable is heated and elongated, the telescopic rod 18 is compressed; when the cable is cooled and shortened, the telescopic rod 18 rebounds), avoiding additional stress on the cable due to rigid fixation. At the same time, under the action of wind, the elastic structure can absorb some vibration energy, reducing the impact of cable swaying on the porcelain insulator. Meanwhile, the two movable support clips 17 can block the two ends of the tie wire, preventing the tie wire wrapped on the cable from shifting.

[0045] The cable tie is wound inside the annular groove 6 and positioned between the two support clips 17, forming a coordinated fixing structure of "binding from above and supporting from below". The principle is that the cable tie binds the cable from above between the support platform 3 and the collar 5, while the support clips 17 support the cable from below. The two work together to prevent the cable from shifting in the vertical direction (due to gravity) and the horizontal direction (due to wind), while also dispersing the pressure of the cable on the support platform 3, preventing excessive local stress from damaging the support platform 3 or the cable insulation layer.

[0046] like Figure 1 As shown, a sleeve 9 is fitted at the bottom of the ceramic column 1, and a threaded rod 24 is fixed in the middle of the sleeve 9. The threaded rod 24 is threadedly connected to the middle of the ceramic column 1. The bottom end of the threaded rod 24 extends out of the support plate 8, and a waterproof sleeve 14 is fitted on the outside of the extended end. The waterproof sleeve 14 and the outside of the sleeve 9 are connected by a fixing mechanism.

[0047] like Figure 6 As shown, a central groove 23 is provided at the bottom of the ceramic column 1. The central groove 23 and the threaded rod 24 are threaded together. The upper end of the threaded rod 24 is set as a smooth end 25, and the positioning hole 7 is opened on the smooth end 25.

[0048] The rotating ceramic column 1 (or threaded rod 24) moves up and down along the axial direction of the threaded rod 24 via the threaded drive between the central groove 23 and the threaded rod 24, thereby adjusting the height of the support platform 3 to accommodate cable installation requirements of different heights (such as maintaining a specific distance between the cable and the support plate 8 to meet insulation requirements). The smooth end 25 of the threaded rod 24 (where the positioning hole 7 is located) is designed to avoid the thread structure affecting the accuracy of the positioning hole 7, ensuring that the height of the ceramic column 1 is stable when the positioning hole 7 is aligned.

[0049] By screwing the threaded rod 24 into the ceramic column 1, the ceramic column 1, the threaded rod 24 and the sleeve 9 can be connected to form an integrated structure, which enhances the structural strength of the overall ceramic bottle (compared to the traditional ceramic bottle made only with electric ceramic material). At the same time, each part can be easily disassembled and separated. When a part is damaged, only the damaged part can be replaced, reducing the cost of later maintenance.

[0050] like Figure 4 , 7 As shown, the smooth end 25 of the threaded rod 24 (where the positioning hole 7 is located) is designed to avoid the threaded structure from affecting the accuracy of the positioning hole 7 and to ensure that the height of the ceramic column 1 is stable when the positioning hole 7 is aligned.

[0051] The ceramic pillar 1, threaded rod 24 (smooth end 25), and collar 5 all have corresponding positioning holes 7 on their outer sides. After the height of the ceramic pillar 1 is adjusted to the target position, the fastening screw is passed through the positioning holes 7 of the three components and tightened. The fixing principle is that the fastening screw locks the ceramic pillar 1, threaded rod 24, and collar 5 into one unit through radial pressure, preventing relative rotation between the three components (avoiding the height deviation of the ceramic pillar 1 caused by threaded transmission), while further strengthening the fixation of the collar 5 on the ceramic pillar 1, ensuring the stability of the cable fixing system.

[0052] like Figure 1 As shown, a shielding plate 10 is fixed to the bottom outer side of the ceramic column 1. When the ceramic column 1 and the threaded rod 24 are connected, the bottom end of the shielding plate 10 and the top end of the sleeve 9 are in contact after the connection is completed. The diameter of the shielding plate 10 is larger than the diameter of the top end of the sleeve 9. The shielding plate 10 forms a "physical shielding barrier", which on the one hand prevents rainwater and dust from falling directly into the connection gap between the ceramic column 1 and the sleeve 9, and on the other hand prevents impurities from accumulating and affecting the sealing performance. It is the "first line of defense" of the waterproof sealing system.

[0053] Both the bottom end of the shielding plate 10 and the top end of the sleeve 9 are provided with slots, and a sealing ring 20 is embedded between the two slots. The sleeve 9 and the shielding plate 10 form a "compression fixation" of the sealing ring 20 through the slots. After being compressed, the sealing ring 20 undergoes elastic deformation, filling the tiny gap between the two and preventing rainwater from penetrating from the contact surface between the shielding plate 10 and the sleeve 9. At the same time, the shielding effect of the shielding plate 10 reduces the direct impact of rainwater on the sealing ring 20 and extends the service life of the sealing ring 20.

[0054] The waterproof casing 14 has a fixed plate 27 inside, and the bottom end of the threaded rod 24 passes through the center of the fixed plate 27.

[0055] like Figure 1 As shown, after the sleeve 9 and ceramic column 1 are fixed, the waterproof sleeve 14 can be fitted onto the bottom end of the threaded rod 24. The fixing holes on the first connecting plate 11 and the second connecting plate 12 are precisely aligned, and the fixing bolts 13 are passed through the fixing holes and tightened to achieve a rigid connection between the waterproof sleeve 14 and the sleeve 9, ensuring no relative displacement between the two and preventing gaps. The function of the waterproof sleeve 14 is to completely enclose the protruding end of the threaded rod 24, the washer 21, the nut 22, and other metal parts to prevent rainwater from splashing or seeping in directly, while also isolating moisture and dust in the air to prevent metal parts from rusting and affecting installation stability.

[0056] When the bottom end of the threaded rod 24 extends into the waterproof sleeve 14, it will pass through the fixed plate 27.

[0057] The fixing plate 27 serves two purposes: firstly, it provides radial positioning for the threaded rod 24, preventing it from shaking under stress and thus avoiding widening of the gap between the waterproof sleeve 14 and the threaded rod 24; secondly, it prevents condensation inside the waterproof sleeve 14 (caused by temperature difference) from dripping directly onto the nut 22, further enhancing the waterproof effect.

[0058] The fixing mechanism includes a fixing bolt 13, a sleeve 9, and a first connecting plate 11 and a second connecting plate 12 fixed to the outer sides of the waterproof casing 14. The first connecting plate 11 and the second connecting plate 12 have fixing holes for the fixing bolt 13 to pass through, and the fixing bolt 13 is positioned between two corresponding fixing holes. The fixing holes on the first connecting plate 11 and the second connecting plate 12 are precisely aligned. The fixing bolt 13 passes through the fixing hole and is tightened, achieving a rigid connection between the waterproof casing 14 and the sleeve 9, ensuring no relative displacement between them and preventing gaps.

[0059] like Figure 4As shown, the support plate 8 has a through groove for the threaded rod 24 to pass through. The threaded rod 24 passes through the through groove, and a washer 21 and a nut 22 are provided on the outer side of the through end. Both the washer 21 and the nut 22 are located on the outer side of the waterproof sleeve 14. When the nut 22 is tightened, the washer 21 is compressed and undergoes elastic deformation, filling the gap between the nut 22 and the support plate 8, and at the same time enhancing the anti-loosening effect of the nut 22. An insulating pad is fixed on the inner ring of the collar 5.

[0060] Working principle: The ceramic column 1 and the threaded rod 24 inside the sleeve 9 are threaded together so that the bottom end of the ceramic column 1 can extend into the sleeve 9, thus fixing the two together and forming an integrated structure. After the threaded rod 24 is screwed in, the outer side of the threaded rod 24, the ceramic column 1 and the positioning hole 7 on the collar 5 are aligned. The threaded rod 24, the ceramic column 1 and the collar 5 are fixed by the fixing screw 19, which facilitates the stability of subsequent winding and binding of the wire, and increases the connection strength between the three.

[0061] At this point, the top of the sleeve 9 and the shielding plate 10 on the outside of the ceramic column 1 come into contact, thus blocking the gap between them.

[0062] After the ceramic column 1 and sleeve 9 are installed, the bottom end of the threaded rod 24 can be passed through the through groove of the support plate 8, and a washer 21 and a nut 22 are placed on the through end of the threaded rod 24 in sequence, so that the nut 22 presses the support plate 8, thus completing the fixation between the ceramic column 1, sleeve 9 and support plate 8.

[0063] Then, the waterproof sleeve 14 is fitted onto the through end of the threaded rod 24, so that the waterproof sleeve 14 provides waterproof protection for the gasket 21, the nut 22 and the protruding end of the threaded rod 24. The first connecting plate 11 and the second connecting plate 12 are fixed by the fixing bolt 13, thus completing the fixation between the waterproof sleeve 14 and the sleeve 9.

[0064] After the components are installed, the cable tie is wound from one end of the cable, then wrapped around the annular groove 6 of the collar 5, and finally wrapped around the other end of the cable. The cable tie is then knotted to form a cross-wrap.

[0065] After the cable tie is wrapped, two support clips 17 can be placed on the corresponding fixing rods 15 to support the bottom of the cable. At the same time, the two support clips 17 can block the two ends of the wrapped cable tie to prevent the cable tie from shifting.

Claims

1. A waterproof cable-stayed ceramic insulator, comprising a ceramic column (1) mounted on a support plate (8), and a ceramic skirt (2) on the outer side of the ceramic column (1), characterized in that: The top of the ceramic column (1) is fixed with a support platform (3), which is used to support the cable. A collar (5) is provided between the support platform (3) and the ceramic skirt (2). The collar (5) is sleeved on the outside of the ceramic column (1), and an annular groove (6) is opened on the outside of the collar (5). A tie wire is wrapped between the collar (5) and the cable. The collar (5) is fixed with a fixing rod (15) on both sides. A support card (17) is slidably arranged on the two fixing rods (15). The support card (17) is snapped into the bottom end of the cable. The cable tie is arranged between the two support cards (17). The bottom end of the ceramic column (1) is fitted with a sleeve (9), and a threaded rod (24) is fixed in the middle of the sleeve (9). The threaded rod (24) is threadedly connected to the middle of the ceramic column (1). The bottom end of the threaded rod (24) extends out of the support plate (8), and a waterproof sleeve (14) is fitted on the outside of the extended end. The waterproof sleeve (14) and the outside of the sleeve (9) are connected by a fixing mechanism. The threaded rod (24), ceramic column (1) and collar (5) are all provided with corresponding positioning holes (7) on their outer sides, and fastening screws are provided between the corresponding positioning holes (7).

2. The waterproof cable-stayed ceramic insulator according to claim 1, characterized in that: The binding wire is wound inside the annular groove (6), and sliding sleeves (16) are slidably provided on the outer sides of the two fixing rods (15). The top of the sliding sleeve (16) is elastically telescopically connected to the telescopic rod (18), and the support clip (17) is fixed to the top of the corresponding telescopic rod (18). The bottom end of the sliding sleeve (16) is provided with a fixing screw (19), one end of which is pressed against the surface of the fixing rod (15).

3. The waterproof cable-stayed ceramic insulator according to claim 1, characterized in that: The ceramic column (1) has a central groove (23) at its bottom end. The central groove (23) and the threaded rod (24) are threaded together. The upper end of the threaded rod (24) is set as a smooth end (25). The positioning hole (7) is opened on the smooth end (25).

4. A waterproof ceramic insulator according to claim 1, characterized in that: The fixing mechanism includes a fixing bolt (13). The outer sides of the sleeve (9) and the waterproof sleeve (14) are respectively fixed with a first connecting plate (11) and a second connecting plate (12). The first connecting plate (11) and the second connecting plate (12) are provided with fixing holes for the fixing bolt (13) to pass through. The fixing bolt (13) is located between two corresponding fixing holes.

5. A waterproof ceramic insulator according to claim 1, characterized in that: A shielding plate (10) is fixed to the bottom of the outer side of the ceramic column (1), and the bottom of the shielding plate (10) is in contact with the top of the sleeve (9).

6. A waterproof ceramic insulator according to claim 5, characterized in that: The bottom end of the shielding plate (10) and the top end of the sleeve (9) are both provided with slots, and a sealing ring (20) is embedded between the two slots.

7. A waterproof ceramic insulator according to claim 1, characterized in that: The top of the support platform (3) is provided with a wire groove (4), and both ends of the wire groove (4) are connected to an expansion groove (26). The expansion groove (26) extends to both sides from the end away from the wire groove (4). Both the wire groove (4) and the expansion groove (26) are provided with an insulating and anti-slip layer.

8. A waterproof ceramic insulator according to claim 1, characterized in that: The support plate (8) has a through groove for the threaded rod (24) to pass through. The threaded rod (24) passes through the through groove, and a gasket (21) and a nut (22) are provided on the outside of the through end. The gasket (21) and the nut (22) are both provided on the outside of the waterproof sleeve (14).

9. A waterproof ceramic insulator according to claim 1, characterized in that: The waterproof casing (14) has a fixed plate (27) inside, and the bottom end of the threaded rod (24) passes through the center of the fixed plate (27).

10. A waterproof ceramic insulator according to claim 1, characterized in that: An insulating pad is fixed to the inner ring of the collar (5).

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