Porcelain insulator in full-sealed connection and assembly

Abstract

The invention discloses a porcelain insulator and assembly in full-sealed connection, and relates to the technical field of porcelain insulators, the porcelain insulator comprises an insulator main body, the top end of the insulator main body is clamped with a U-shaped clamp, the U-shaped clamp is matched with a clamping plate, and the U-shaped clamp is in threaded connection with a fastening nut for positioning the clamping plate; vertical plates are fixedly connected to the two sides of the top of the U-shaped clamp, a supporting plate with the adjustable angle is arranged between the two vertical plates, and a sealing plate is arranged on the top of the supporting plate in a matched mode. A first threaded rod is rotationally arranged at the bottom end of the supporting plate, a pressing block is rotationally connected to the clamping plate, and a second threaded rod is fixedly connected to the pressing block. According to the porcelain insulator and the assembly in full-sealed connection, the supporting plate, the threaded sleeve, the cross rod and the limiting strip are arranged, the supporting plate is installed in an assembling mode, the inclination angle of the supporting plate is flexibly adjusted, meanwhile, the anti-rotation resistance of the fastening nut and the threaded sleeve is improved, the risk of slight looseness caused by wind vibration is reduced, and the use stability of the porcelain insulator is guaranteed.

Description

Technical Field

[0001] This invention relates to the field of porcelain insulator technology, and in particular to a fully sealed porcelain insulator and its components. Background Technology

[0002] An insulator is a device installed between conductors at different potentials or between a conductor and a component at ground potential. It can withstand voltage and mechanical stress and is a special type of insulation control that plays an important role in overhead transmission lines. Insulators are usually made of glass or ceramic.

[0003] When securing cables to existing insulators, the cables are typically placed in cable trays and then bound to the insulators with straps. However, in actual use, when cables are pulled from the bottom of a mountain to the top, they are distributed at an angle. In this case, the cables cannot be placed completely in the cable trays on vertically installed insulators. If the cables are forcibly bound in the cable trays, it will cause excessive bending of the cables, affecting the service life of both the insulators and the cables, and creating potential safety hazards for the lines.

[0004] Therefore, it is necessary to propose a fully sealed porcelain insulator and assembly to solve the above problems. Summary of the Invention

[0005] The purpose of this invention is to provide a fully sealed porcelain insulator and its components to solve the problem that when fixing cables with existing insulators, the cables are usually placed in a cable tray and then bound to the insulator with straps. However, in actual use, when the cable is pulled from the bottom of a mountain to the top, the cable is distributed at an angle. At this time, the cable cannot be completely placed in the cable tray on the vertically installed insulator. If the cable is forcibly bound in the cable tray, it will cause excessive bending of the cable, affecting the service life of the insulator and the cable, and bringing potential safety hazards to the line.

[0006] To achieve the above objectives, the present invention provides the following technical solution: a fully sealed porcelain insulator, comprising an insulator body, wherein a U-shaped clip is snapped onto the top of the insulator body, a clamping plate is fitted onto the U-shaped clip, and a fastening nut for positioning the clamping plate is threaded onto the U-shaped clip;

[0007] The top of the U-shaped card is fixedly connected to two vertical plates on both sides, and an adjustable support plate is provided between the two vertical plates. The top of the support plate is fitted with a sealing plate.

[0008] The bottom end of the pallet is rotatably provided with a first threaded rod, a pressure block is rotatably connected to the clamp, a second threaded rod is fixedly connected to the pressure block, and a threaded sleeve is provided between the first threaded rod and the second threaded rod.

[0009] A support block is fixedly connected to the pressure block, a crossbar is fixedly connected to the side of the support block, a rotating shaft is fixedly connected to the end of the crossbar away from the support block, a limiting strip that abuts against the fastening nut is rotatably connected to the rotating shaft, and a torsion spring is fitted on the rotating shaft.

[0010] Preferably, a rotating assembly is provided between the vertical plate and the support plate. The rotating assembly includes an inner shaft and an outer sleeve. The inner shaft is fixedly connected to the side of the vertical plate near the support plate, and the outer sleeve is rotatably connected to the inner shaft. The outer sleeve is fixedly connected to the side of the support plate.

[0011] Preferably, the top of the outer sleeve has a through groove, and a retaining tooth is slidably disposed inside the through groove. The outer wall of the inner shaft has a retaining groove for the retaining tooth to be inserted into. The top of the retaining tooth is fixedly connected to a stop plate, and a spring is fitted on the retaining tooth. One end of the spring is fixedly connected to the stop plate, and the other end of the spring is fixedly connected to the outer wall of the outer sleeve. The sealing plate and the stop plate abut against each other.

[0012] Preferably, multiple card slots are provided.

[0013] Preferably, the length of the sealing plate is the same as the length of the tray, and the width of the sealing plate is greater than the width of the tray.

[0014] Preferably, a horizontal plate is fixedly connected between the two vertical plates, and the horizontal plate abuts against the top of the insulator body.

[0015] Preferably, two fastening nuts are provided, and both fastening nuts are connected to a U-shaped thread.

[0016] Preferably, the top outer wall of the insulator body is arc-shaped.

[0017] Preferably, a wire groove is provided on the top of the insulator body.

[0018] A fully sealed porcelain insulator assembly, characterized in that: applied to the fully sealed porcelain insulator as described in any one of the claims, it further includes a locking assembly, the locking assembly comprising a first mating plate, a second mating plate, and bolts, wherein the first mating plate is fixedly connected to a sealing plate, the second mating plate is fixedly connected to a support plate, and the first mating plate and the second mating plate are mated together by bolts.

[0019] The technical effects and advantages of this invention are as follows:

[0020] 1. This invention installs the support plate by setting up a support plate, threaded sleeve, crossbar and limiting strip in an assembly manner, and flexibly adjusts its tilt angle. At the same time, it increases the anti-rotation resistance of the fastening nut and threaded sleeve, reduces the risk of slight loosening caused by wind vibration, and ensures the stability of the porcelain insulator.

[0021] 2. U-shaped clips, clamps, etc. are fixed to the insulator body by assembly, eliminating the need for custom production and increasing the flexibility of use. For example, when the cables are horizontally distributed, the cable trays are used in conjunction with the conductors; when the cables are inclined, U-shaped clips, clamps, etc. are assembled.

[0022] 3. By setting up structures such as slots, teeth, and abutments, the angle of the pallet is reinforced and locked, and it cooperates with the support structure formed by the first threaded rod and the second threaded rod to ensure the stability of the pallet during use;

[0023] 4. By setting up a sealing plate and other structures, the cable is efficiently clamped and fixed, and the clamping teeth are squeezed and controlled simultaneously, making it easy to operate;

[0024] 5. The side plate, sealing sleeve and other structures are set to seal the first docking plate, the second docking plate and bolts, etc., to avoid the influence of water vapor, extend the service life, prevent the bolts from loosening, and improve the stability of the docking between the support plate and the sealing plate. In addition, since the clamping rod is inserted into the inside of the clamping hole, the side plate will not rotate, and the angle of the support plate and the sealing plate is locked again.

[0025] 6. The sealing sleeve is directly fitted onto the outside of the first and second mating plates, achieving a locking effect. Attached Figure Description

[0026] Figure 1 This is a first-view structural schematic diagram of the fully sealed porcelain insulator of the present invention.

[0027] Figure 2 This is a second-view structural schematic diagram of the fully sealed porcelain insulator of the present invention.

[0028] Figure 3 This is a third-view structural diagram of the fully sealed porcelain insulator of the present invention.

[0029] Figure 4 This is a schematic diagram of the tray and sealing plate structure of the present invention.

[0030] Figure 5 For the present invention Figure 4 Enlarged schematic diagram of the structure at point A in the middle.

[0031] Figure 6 This is a schematic diagram of the first and second threaded rods of the present invention.

[0032] Figure 7 This is a schematic diagram of the support block and crossbar structure of the present invention.

[0033] Figure 8 This is a schematic diagram of the clamping plate and fastening nut structure of the present invention.

[0034] Figure 9 For the present invention Figure 8Enlarged schematic diagram of the structure at point B.

[0035] Figure 10 This is a schematic diagram of the inner shaft and outer sleeve structure of the present invention.

[0036] Figure 11 This is a schematic diagram of the vertical and horizontal plate structures of the present invention.

[0037] Figure 12 This is a schematic diagram of the insulator body and the groove structure of the present invention.

[0038] Figure 13 This is a schematic diagram of the side plate and sealing sleeve structure of the present invention.

[0039] Figure 14 For the present invention Figure 13 Enlarged schematic diagram of the structure at point C.

[0040] Figure 15 This is a schematic diagram of the insulator body and side plate structure of the present invention.

[0041] Figure 16 For the present invention Figure 15 Enlarged schematic diagram of the structure at point D.

[0042] Figure 17 This is a schematic diagram of the side plate and receiving groove structure of the present invention.

[0043] In the diagram: 1. Insulator body; 2. Trough; 3. U-shaped clip; 4. Clamping plate; 5. Fastening nut; 6. Vertical plate; 7. Horizontal plate; 8. Inner shaft; 9. Outer sleeve; 10. Support plate; 11. First mating plate; 12. Second mating plate; 13. Rotating block; 14. First threaded rod; 15. Pressure block; 16. Second threaded rod; 17. Threaded sleeve; 18. Support block; 19. Horizontal bar; 20. Rotating shaft; 21. Torsion spring; 22. Limiting strip; 23. Slot; 24. Sealing plate; 25. Bolt; 26. Through slot; 27. Clamping tooth; 28. Abutment plate; 29. ​​Spring; 30. Side plate; 31. Sealing sleeve; 32. Receiving groove; 33. Clamping hole; 34. Elastic telescopic rod; 35. Clamping rod. Detailed Implementation

[0044] This invention provides, for example Figures 1 to 17 The porcelain insulator shown is a fully sealed connection, including an insulator body 1, which includes porcelain parts, steel feet and other structures. In use, it is installed on electrical equipment such as crossarms. The top of the insulator body 1 is provided with a wire groove 2. When connecting with a cable, the cable can be placed in the wire groove 2 and then the cable is fixed together with the insulator body 1. The installation and use of the insulator are common existing technologies, which will not be described in detail here.

[0045] Reference Figure 3 , Figure 12As shown, the top outer wall of the insulator body 1 is arc-shaped, which makes the outer diameter of the insulator body 1 at the wire groove 2 larger, which can increase the length of the wire groove 2 and ensure the contact area with the cable.

[0046] When fixing cables, it is common practice to place the cables in the cable tray 2 before fixing them. However, in actual use, this method is suitable for horizontally distributed cables. If the cables are distributed at an angle, such as pulling a cable from the bottom of a mountain to the top, the cables cannot be completely placed in the cable tray 2 on the vertically installed insulator. If the cables are forcibly fixed in the cable tray 2, it will cause excessive bending of the cables, affecting the service life of the insulators and cables, and bringing potential safety hazards to the lines. In order to improve the applicability of the insulator, a U-shaped clip 3 is attached to the top of the insulator body 1. A clamping plate 4 is fitted on the U-shaped clip 3. Both ends of the clamping plate 4 are provided with through holes for the U-shaped clip 3 to pass through. The U-shaped clip 3 is threaded with a fastening nut 5 to position the clamping plate 4. There are two fastening nuts 5, and both fastening nuts 5 are threadedly connected to the U-shaped clip 3.

[0047] In actual use, attach the U-shaped clip 3 to the top of the insulator body 1 (refer to...). Figure 3 Next, the clamp 4 is assembled onto the U-shaped clip 3 through the through holes at both ends. The U-shaped clip 3 and the clamp 4 are both attached to the insulator body 1, and the fastening nut 5 is used to connect with the U-shaped clip 3. The fastening nut 5 squeezes and positions the clamp 4 to form a surrounding positioning structure. At the same time, since the outer wall of the top of the insulator body 1 is arc-shaped, the U-shaped clip 3, clamp 4 and other structures will not slide directly out from the top of the insulator body 1, ensuring the stability of use.

[0048] A horizontal plate 7 is fixedly connected between the two vertical plates 6. When the U-shaped clip 3 is snapped onto the top of the insulator body 1, the horizontal plate 7 abuts against the top of the insulator body 1, improving the stability of the surrounding positioning structure.

[0049] U-shaped clips 3, clamps 4, etc. are fixed to the insulator body 1 by assembly, eliminating the need for custom production and increasing the flexibility of use. For example, when the cables are horizontally distributed, the cable groove 2 is used in conjunction with the conductor; when the cables are inclined, the U-shaped clips 3, clamps 4, etc. are assembled.

[0050] Vertical plates 6 are fixedly connected to both sides of the top of the U-shaped clip 3, and the vertical plates 6 are attached to the outer wall of the top of the insulator body 1. A support plate 10 is provided between the two vertical plates 6. The top of the support plate 10 is provided with a recessed groove for placing cables. A rotating assembly is provided between the vertical plates 6 and the support plate 10. The rotating assembly includes an inner shaft 8 and an outer sleeve 9. The inner shaft 8 is fixedly connected to the side of the vertical plate 6 near the support plate 10. The outer sleeve 9 is rotatably connected to the inner shaft 8 and fixedly connected to the side of the support plate 10. The rotating assembly allows the tilt angle of the support plate 10 to be adjusted, which is suitable for cables with tilted distribution.

[0051] In actual use, a structure such as a ball bearing can be set between the inner shaft 8 and the outer sleeve 9 to ensure the smooth rotation of the outer sleeve 9 on the inner shaft 8. Rotating components are provided on both sides of the tray 10 to ensure the stability of the tray 10 in use.

[0052] To adjust the tilt angle of the pallet 10, a rotating block 13 is rotatably installed at the bottom of the pallet 10. A first threaded rod 14 is fixedly connected to the end of the rotating block 13 away from the pallet 10. A pressure block 15 is rotatably connected to the bottom of the clamping plate 4. A second threaded rod 16 is fixedly connected to the pressure block 15. A threaded sleeve 17 is provided between the first threaded rod 14 and the second threaded rod 16. The two ends of the threaded sleeve 17 are threadedly connected to the first threaded rod 14 and the second threaded rod 16, respectively. When the threaded sleeve 17 is rotated, the first threaded rod 14 and the second threaded rod 16 can move towards or away from each other. The outer wall surface of the threaded sleeve 17 is a regular hexagon. The operator can use a wrench or the like to engage with the threaded sleeve 17 and rotate it.

[0053] Specifically, the operator mates the threaded sleeve 17 between the first threaded rod 14 and the second threaded rod 16, and rotates the threaded sleeve 17 so that the first threaded rod 14 and the second threaded rod 16 can move towards or away from each other. The support plate 10 rotates through the rotating assembly, so that the support plate 10 is tilted and matches the cable. The cable can fit into the recessed groove at the top of the support plate 10, ensuring the efficiency of the insulator and the cable.

[0054] Furthermore, the tilt angle of the tray 10 can be flexibly adjusted.

[0055] To prevent the threaded sleeve 17 from loosening and to ensure stability during use, a support block 18 is fixedly connected to the pressure block 15. A crossbar 19 is fixedly connected to the side of the support block 18. A rotating shaft 20 is fixedly connected to the end of the crossbar 19 away from the support block 18. A limiting strip 22 that abuts against the fastening nut 5 is rotatably connected to the rotating shaft 20. A torsion spring 21 is fitted on the rotating shaft 20. One end of the torsion spring 21 is fixedly connected to the rotating shaft 20, and the other end of the torsion spring 21 is fixedly connected to the limiting strip 22. The torsion spring 21 has a large elastic support force.

[0056] When the operator needs to align the threaded sleeve 17 between the first threaded rod 14 and the second threaded rod 16, the pressure block 15 and the second threaded rod 16 will swing towards the clamping plate 4. The pressure block 15 drives the crossbar 19 and the limiting strip 22 to swing synchronously towards the clamping plate 4 through the support block 18, and the limiting strip 22 abuts against the fastening nut 5. As the support block 18 and the crossbar 19 continue to swing, the limiting strip 22 swings adaptively around the pivot 20. Under the restoring force of the torsion spring 21, the limiting strip 22 always stays tightly against the outside of the fastening nut 5, significantly improving the anti-rotation resistance of the fastening nut 5 and reducing the risk of slight loosening caused by wind vibration.

[0057] At the same time, under the restoring force of the torsion spring 21, the second threaded rod 16 will tend to swing away from the clamping plate 4, thereby pressing against the inner wall of the threaded sleeve 17, which also increases the anti-rotation resistance of the threaded sleeve 17 and reduces the risk of slight loosening caused by wind vibration.

[0058] Specifically, a torsion spring 21 with appropriate elastic support force can be selected. Within the range of normal line load and light wind vibration, this elastic support force can prevent the spontaneous rotation of the fastening nut 5 and the threaded sleeve 17. Furthermore, when the threaded sleeve 17 is rotated, causing the first threaded rod 14 and the second threaded rod 16 to move towards or away from each other, the operator can assist in supporting the second threaded rod 16 to ensure the normal rotation of the threaded sleeve 17.

[0059] In addition, a pin or other structure (not shown in the figure) can be provided between the crossbar 19 and the limiting strip 22. After the limiting strip 22 is tightly attached to the outside of the fastening nut 5, the limiting strip 22 is fixed to prevent the fastening nut 5 from rotating at will. Adjustment can be made according to the specific use.

[0060] Furthermore, anti-slip textures or other structures can be provided at the contact points between the limiting strip 22 and the fastening nut 5 to increase friction.

[0061] The present invention installs the support plate 10 by setting up the support plate 10, the threaded sleeve 17, the crossbar 19 and the limiting strip 22, and flexibly adjusts its tilt angle. At the same time, it increases the anti-rotation resistance of the fastening nut 5 and the threaded sleeve 17, reduces the risk of slight loosening caused by wind vibration, and ensures the stability of the porcelain insulator.

[0062] To further improve the stability of the pallet 10, a through groove 26 is provided at the top of the outer sleeve 9. A locking tooth 27 is slidably arranged inside the through groove 26. A slot 23 for the locking tooth 27 to be inserted is provided on the outer wall of the inner shaft 8. Multiple slots 23 are provided. A stop plate 28 is fixedly connected to the top of the locking tooth 27. A spring 29 is fitted on the locking tooth 27. One end of the spring 29 is fixedly connected to the stop plate 28, and the other end of the spring 29 is fixedly connected to the outer wall of the outer sleeve 9. When the stop plate 28 is not compressed, the bottom end of the locking tooth 27 is retracted into the through groove 26 due to the restoring force of the spring 29, which does not affect the rotation of the outer sleeve 9 on the inner shaft 8. When the stop plate 28 is compressed, the bottom end of the locking tooth 27 is engaged into the slot 23. At this time, the outer sleeve 9 will not rotate on the inner shaft 8, thus fixing the angle of the pallet 10.

[0063] The inner shaft 8, outer sleeve 9, and locking teeth 27 are all made of high-strength materials, such as high-strength alloy structures.

[0064] The top of the tray 10 is fitted with a sealing plate 24. The bottom of the sealing plate 24 is also provided with a recessed groove for the cable to be inserted. The length of the sealing plate 24 is the same as the length of the tray 10. When the sealing plate 24 is placed on top of the tray 10 and fixed (refer to...), Figure 1The support plate 10 and the sealing plate 24 form a sealed clamping structure, which can efficiently clamp and fix the cable, and prevent rainwater from entering the position where the cable contacts the support plate 10 and the sealing plate 24, thus achieving a fully sealed effect.

[0065] In actual use, sealing gaskets or other structures can be installed at the joint of the tray 10 and the sealing plate 24 to ensure sealing.

[0066] Meanwhile, the width of the sealing plate 24 is greater than the width of the support plate 10, allowing the sealing plate 24 to abut against the abutment plate 28. Specifically, when the sealing plate 24 is placed on top of the support plate 10 and fixed thereto, the sealing plate 24 will press against the abutment plate 28. After the abutment plate 28 is pressed, the bottom end of the retaining tooth 27 engages with the inside of the retaining groove 23. At this time, the outer sleeve 9 will not rotate on the inner shaft 8, thus locking the angle of the support plate 10.

[0067] By setting up structures such as slot 23, tooth 27 and abutment 28, the angle of the pallet 10 is reinforced and locked, and cooperates with the support structure formed by the first threaded rod 14 and the second threaded rod 16 to ensure the stability of the pallet 10 in use.

[0068] By setting up structures such as the sealing plate 24, the cable is efficiently clamped and fixed, and the clamping teeth 27 are simultaneously squeezed and controlled, making operation convenient.

[0069] To achieve the connection between the support plate 10 and the sealing plate 24, the present invention also discloses a fully sealed porcelain insulator assembly, which is applied to the aforementioned fully sealed porcelain insulator and further includes a locking assembly. Four sets of locking assemblies are provided and distributed at the four corners of the support plate 10 (see reference). Figure 1 , Figure 4 The locking assembly consists of a first mating plate 11, a second mating plate 12, and a bolt 25. The first mating plate 11 is fixedly connected to the sealing plate 24, and the second mating plate 12 is fixedly connected to the support plate 10. Both the first mating plate 11 and the second mating plate 12 are provided with threaded holes that mate with the bolt 25.

[0070] Specifically, the sealing plate 24 is placed on top of the support plate 10, and the first mating plate 11 is attached to the corresponding second mating plate 12. The bolt 25 is rotated, and the bolt 25 is used to engage with the two threaded holes to fix the first mating plate 11 and the second mating plate 12 together, thereby completing the connection between the support plate 10 and the sealing plate 24. The bottom end of the bolt 25 is flush with the lower surface of the second mating plate 12.

[0071] To prevent bolt 25 from loosening and ensure the stability of the connection between support plate 10 and sealing plate 24, a side plate 30 is slidably provided on the outer sleeve 9. Both ends of the side plate 30 are integrally formed with sealing sleeves 31. The side of the sealing sleeve 31 near the support plate 10 forms a receiving groove 32 to accommodate the corresponding locking component. When the sealing sleeve 31 is fitted onto the outside of the corresponding locking component, the top wall of the receiving groove 32 abuts against the top of bolt 25, and the bottom wall of the receiving groove 32 abuts against the lower surface of the second mating plate 12. At the same time, the sealing sleeve 31 also abuts against the outer wall of the support plate 10 and the sealing plate 24.

[0072] Side plate 30 will not come into contact with back plate 28.

[0073] A flexible telescopic rod 34 is provided below the outer casing 9. The flexible telescopic rod 34 is fixedly connected to the corresponding vertical plate 6. A locking rod 35 is fixedly connected to the end of the flexible telescopic rod 34 away from the vertical plate 6. The side plate 30 has locking holes 33 for the locking rod 35 to be inserted. There are multiple locking holes 33, which are arranged in an arc shape to facilitate the locking rod 35 to be inserted and cooperate with the corresponding locking hole 33 after the tilt angle of the support plate 10 and the side plate 30 are adjusted synchronously. At the same time, the outer diameter of the locking rod 35 is smaller than the outer diameter of the telescopic end of the flexible telescopic rod 34.

[0074] In use, select the appropriate locking hole 33 and locking rod 35 according to the tilt angle of the tray 10, so that the locking rod 35 is inserted into the inside of the locking hole 33. At this time, the side plate 30 and the tray 10 are tilted at the same angle, and the telescopic end of the elastic telescopic rod 34 abuts against the side wall of the side plate 30.

[0075] When aligning the support plate 10 with the sealing plate 24, the side plate 30 can be moved away from the support plate 10 to retract the corresponding telescopic end of the elastic telescopic rod 34. After the support plate 10 and the sealing plate 24 are aligned, the return force of the elastic telescopic rod 34 causes the side plate 30 to return to its original position. At this time, the sealing sleeve 31 is fitted onto the outside of the corresponding locking assembly, the top wall of the receiving groove 32 abuts against the top of the bolt 25, and the bottom wall of the receiving groove 32 abuts against the lower surface of the second docking plate 12. At the same time, the sealing sleeve 31 also abuts against the support plate 10. The sealing plate 24 completes the full sealing treatment of the first docking plate 11, the second docking plate 12, and the bolts 25, avoiding the influence of moisture and extending the service life. It also prevents the bolts 25 from loosening and fits on the outside of the first docking plate 11 and the second docking plate 12, improving the stability of the docking between the support plate 10 and the sealing plate 24. In addition, since the locking rod 35 is inserted into the locking hole 33, the side plate 30, the support plate 10, and the sealing plate 24 will not rotate, thus locking the angle of the support plate 10 and the sealing plate 24 again.

[0076] Working principle: Connect the U-shaped clip 3 to the top of the insulator body 1 (refer to...) Figure 3Next, the clamp 4 is assembled onto the U-shaped clip 3 through the through holes at both ends. The U-shaped clip 3 and the clamp 4 are both attached to the insulator body 1, and the fastening nut 5 is used to connect with the U-shaped clip 3. The fastening nut 5 squeezes and positions the clamp 4 to form a surrounding positioning structure. At the same time, since the outer wall of the top of the insulator body 1 is arc-shaped, the U-shaped clip 3, clamp 4 and other structures will not slide directly out from the top of the insulator body 1.

[0077] The operator mates the threaded sleeve 17 between the first threaded rod 14 and the second threaded rod 16, and rotates the threaded sleeve 17 so that the first threaded rod 14 and the second threaded rod 16 can move towards or away from each other. The pallet 10 rotates through the rotating assembly, so that the pallet 10 is tilted and matches the cable.

[0078] When the operator needs to align the threaded sleeve 17 between the first threaded rod 14 and the second threaded rod 16, the pressure block 15 and the second threaded rod 16 will swing towards the clamping plate 4. The pressure block 15 drives the crossbar 19 and the limiting strip 22 to swing synchronously towards the clamping plate 4 through the support block 18, and the limiting strip 22 abuts against the fastening nut 5. As the support block 18 and the crossbar 19 continue to swing, the limiting strip 22 swings adaptively around the rotating shaft 20. Under the restoring force of the torsion spring 21, the limiting strip 22 always stays tightly against the outside of the fastening nut 5.

Claims

1. A fully sealed porcelain insulator, comprising an insulator body (1), characterized in that: The top of the insulator body (1) is fitted with a U-shaped clip (3), a clamping plate (4) is fitted on the U-shaped clip (3), and a fastening nut (5) for positioning the clamping plate (4) is threaded onto the U-shaped clip (3). The top two sides of the U-shaped card (3) are fixedly connected with vertical plates (6), and an adjustable support plate (10) is provided between the two vertical plates (6). A sealing plate (24) is fitted on the top of the support plate (10). The bottom end of the pallet (10) is rotatably provided with a first threaded rod (14), and a pressure block (15) is rotatably connected to the clamp (4). A second threaded rod (16) is fixedly connected to the pressure block (15), and a threaded sleeve (17) is provided between the first threaded rod (14) and the second threaded rod (16). A support block (18) is fixedly connected to the pressure block (15). A crossbar (19) is fixedly connected to the side of the support block (18). A rotating shaft (20) is fixedly connected to the end of the crossbar (19) away from the support block (18). A limiting strip (22) that abuts against the fastening nut (5) is rotatably connected to the rotating shaft (20). A torsion spring (21) is fitted on the rotating shaft (20).

2. The porcelain insulator with a fully sealed connection according to claim 1, characterized in that: A rotating assembly is provided between the vertical plate (6) and the support plate (10). The rotating assembly includes an inner shaft (8) and an outer sleeve (9). The inner shaft (8) is fixedly connected to the side of the vertical plate (6) near the support plate (10). The outer sleeve (9) is rotatably connected to the inner shaft (8) and fixedly connected to the side of the support plate (10).

3. The porcelain insulator with a fully sealed connection according to claim 2, characterized in that: The top of the outer sleeve (9) is provided with a through groove (26), and a locking tooth (27) is slidably provided inside the through groove (26). The outer wall of the inner shaft (8) is provided with a slot (23) for the locking tooth (27) to be inserted. The top of the locking tooth (27) is fixedly connected to a stop plate (28). A spring (29) is fitted on the locking tooth (27). One end of the spring (29) is fixedly connected to the stop plate (28), and the other end of the spring (29) is fixedly connected to the outer wall of the outer sleeve (9). The sealing plate (24) abuts against the stop plate (28).

4. A fully sealed porcelain insulator according to claim 3, characterized in that: The card slot (23) is provided in multiple ways.

5. A fully sealed porcelain insulator according to claim 1, characterized in that: The length of the sealing plate (24) is the same as the length of the tray (10), and the width of the sealing plate (24) is greater than the width of the tray (10).

6. A fully sealed porcelain insulator according to claim 1, characterized in that: A horizontal plate (7) is fixedly connected between the two vertical plates (6), and the horizontal plate (7) abuts against the top of the insulator body (1).

7. A fully sealed porcelain insulator according to claim 1, characterized in that: Two fastening nuts (5) are provided, and both fastening nuts (5) are threadedly connected to the U-shaped clip (3).

8. A fully sealed porcelain insulator according to claim 1, characterized in that: The top outer wall of the insulator body (1) is arc-shaped.

9. A fully sealed porcelain insulator according to claim 1, characterized in that: The top of the insulator body (1) is provided with a wire groove (2).

10. A fully sealed porcelain insulator assembly, characterized in that: The porcelain insulator applied to the fully sealed connection as described in any one of claims 1 to 9 further includes a locking assembly, the locking assembly comprising a first mating plate (11), a second mating plate (12), and a bolt (25), the first mating plate (11) being fixedly connected to the sealing plate (24), the second mating plate (12) being fixedly connected to the support plate (10), and the first mating plate (11) and the second mating plate (12) being mated by the bolt (25).

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