Extra-high voltage porcelain insulator supporting auxiliary assembly and installation method

Abstract

The invention relates to the technical field of insulator installation, in particular to an extra-high voltage porcelain insulator supporting auxiliary assembly and an installation method.The other end of a second pull rope pulls a third pull rope, and a rotating rod assembly comprises an intermediate shaft wound around the second pull rope and rubber rods symmetrically distributed at the two ends of the intermediate shaft; the rubber rod is provided with a first pull rope connected with the clamping hoop, and the rotating rod assembly is provided with a limiting assembly for limiting the rotating angle. Through the arrangement of the pull rod structure, supporting connection of the insulator is achieved, through connection of the rotating rod assembly to the insulator is matched, and therefore it is guaranteed that the insulator falls off from a telegraph pole; and meanwhile, three groups of pull rope structures and rotating rod assemblies are arranged to be matched to form a stable supporting structure, when single-side traction stretching occurs, the insulator can deviate from one side, and in the deviation process, the clamping fixation of the hoop to the cable is further increased, so that the power transmission cable is always bound on the insulator, and the power transmission cable is prevented from falling down.

Description

Technical Field

[0001] The invention relates to the technical field of insulator installation, and in particular to an ultra-high voltage porcelain insulator support auxiliary component and an installation method. Background Art

[0002] In the process of ultra-high voltage power transmission, insulators are usually used to support the transmission cables. Insulators have high insulation properties and can achieve sufficient insulation between the transmission cables and the poles to avoid being affected by high voltage power transmission.

[0003] The material of the insulator is usually porcelain. CN210575304U discloses a porcelain insulator for ultra-high voltage lines, which solves the problem that the existing porcelain insulators are not strong enough to meet the requirements when encountering higher voltages, that is, when encountering flashover lightning impulse voltage due to natural lightning discharge, and the insulation breakdown strength needs to be improved, and the general porcelain insulators are inconvenient to install and fix. The insulator comprises a base, a support column and a porcelain insulator, the support column is fixedly installed on the base, the porcelain insulator is installed on the support column, the porcelain insulator comprises a rod-type porcelain support column, a plurality of groups of outer insulating umbrella skirt sheaths are arranged on the rod-type porcelain support column, the lower end of the rod-type porcelain support column is fixedly connected to a connecting column, a fixing device is movably installed on the connecting column, and the porcelain insulator is fixedly installed on the supporting column through the fixing device; the invention not only makes the porcelain insulator firmly fixed, but also facilitates installation and disassembly, greatly improving the mechanical strength and flashover strength.

[0004] However, the existing porcelain insulators mainly rely on the strength support of the insulators themselves in the process of supporting transmission cables. However, the cables used in the ultra-high voltage transmission process are relatively thick and the distance is long. Therefore, when supporting, the traction and pulling force on both sides along the direction of the cable is relatively large. The common installation method of porcelain insulators is that the lower end is rigidly fixed to the pole by threads, bolts, etc., which causes excessive traction on one side of the upper end, which can easily cause the lower end to deviate and break, thereby causing the insulator to break, and the cable loses support and falls downward, causing a safety accident. Summary of the invention

[0005] The object of the present invention is to provide an auxiliary support assembly for a UHV porcelain insulator and an installation method thereof, so as to solve the problems raised in the above-mentioned background technology.

[0006] To achieve the above object, the present invention provides the following technical solutions:

[0007] The utility pole is provided with a mounting seat, the mounting seat is provided with an externally threaded cylinder threadedly connected with the insulator, a rubber gasket is provided between the outer side of the mounting seat and the insulator, the upper end of the insulator is provided with a support for supporting a transmission cable, the support is provided with a clamp elastically mounted and clamping the transmission cable, a rotatable rotating rod assembly is inserted through the insulator, the two ends of the rotating rod assembly are elastically connected to the utility pole, an elastically mounted pin assembly is transversely inserted between the lower end of the insulator and the rubber gasket and the mounting seat, a third pull rope is provided on the pin assembly, a second pull rope is provided on the rotating rod assembly, one end of the second pull rope is rotatably wound around the rotating rod assembly, and the other end of the second pull rope pulls the third pull rope, the rotating rod assembly comprises an intermediate shaft around which the second pull rope is wound and rubber rods symmetrically distributed at both ends of the intermediate shaft, a first pull rope connected to the clamp is provided on the rubber rod, and a limit assembly for limiting the rotation angle is provided on the rotating rod assembly.

[0008] Preferably, a rotating groove is transversely penetrated through the upper end of the insulator, an inner groove connected to the rotating groove is provided in the inner cavity of the insulator, a stepped inner groove is provided at the lower end of the insulator, the lower end of the stepped inner groove is pressed onto the rubber gasket, the upper end of the stepped inner groove is threadedly rotatably connected to the external threaded barrel, the inner groove and the stepped inner groove are connected via a wire groove, and the second pull rope extends along the wire groove.

[0009] Preferably, upper seats are provided at both ends of the rotating rod assembly, and a pair of lower seats are provided on both sides of the upper end beam of the utility pole, and the upper seat and the lower seat are connected by a rotatably installed pull rod, and the rotating rod assembly includes a rotating shaft and a driving shaft, the rotating shaft bearing is rotatably installed on the upper seat on one side, and the driving shaft is rotatably installed on the upper seat on the other side, the rotating shaft and the driving shaft are connected to the intermediate shaft through a rubber rod inserted in the rotating groove, and a second elastic member is sleeved on the rotating shaft and the driving shaft, and the other end of the second elastic member is pressed on the outer wall of the insulator.

[0010] Preferably, the inner diameter of the rotating groove is larger than the outer diameter of the rubber rod, a ring is rotatably sleeved on the outer wall of the rubber rod, a pair of laterally extended side grooves distributed in a circular array are provided on the inner wall of the rotating groove, the ring is provided with a protrusion slidably inserted on the side groove, one end of the first pull rope is fixedly connected to the ring, the other end of the first pull rope is connected to the clamp, the upper end of the clamp is pressed on the outer wall of the transmission cable, the first pull rope is sleeved with a first elastic member, the first elastic member is pressed between the clamp and the top surface of the insulator, and the first elastic member and the second elastic member are both rubber rings.

[0011] Preferably, the limiting assembly includes a card slot and an elastic pull handle, a pair of side strips are provided on the arc outer wall of the driving shaft, an elastic pull handle is slidably inserted on the side strip, the elastic pull handle is sleeved on the end of the driving shaft, and one end of the elastic pull handle extends to the outside of the upper seat, a second spring is pressed between the elastic pull handle and the upper seat, a plurality of groups of card slots distributed in a circular array are provided on the upper seat, and an extension arm that can be snapped into the card slot is provided on the outer wall of the elastic pull handle.

[0012] Preferably, the latch assembly includes a mounting screw, a transverse slide rod and a threaded latch, a pair of lateral screw holes in the same extension direction as the rotating rod assembly are arranged on the arc side wall of the mounting seat, a mounting screw is threadedly installed in the lateral screw hole, a telescopic inner cavity is arranged in the mounting screw, a transverse slide rod is elastically installed in the telescopic inner cavity, a through hole corresponding to the lateral screw hole is arranged on the rubber gasket, an external expansion hole corresponding to the through hole is arranged on the insulator, an internal threaded hole is arranged on one end of the transverse slide rod facing the external expansion hole, and the threaded latch is inserted along the external expansion hole and the through hole and threadedly installed in the internal threaded hole.

[0013] Preferably, an adjusting inner cavity is provided in the mounting seat and the external threaded tube, an inner lining tube is fixedly inserted and installed in the adjusting inner cavity, the lateral screw hole is connected to the adjusting inner cavity, and a limiting cover is provided on the side of the mounting screw tube close to the adjusting inner cavity, a first spring is pressed between the transverse sliding rod and the limiting cover, a wire hole corresponding to the lateral screw hole is provided on the inner lining tube, one end of the transverse sliding rod is connected to one end of the third pull rope, and the middle section of the third pull rope extends into the inner lining tube along the wire hole.

[0014] Preferably, the inner liner tube is provided with a pair of connecting cavities distributed up and down, a guide wheel is provided in the connecting cavity at the lower end, and an elastically installed connecting rod is provided in the connecting cavity at the upper end. The pair of connecting cavities distributed up and down are connected to each other, and the third pull rope is connected to the connecting rod through the guide wheel, and the other end of the connecting rod is connected to the second pull rope.

[0015] Preferably, the two ends of the intermediate shaft are respectively inserted into a pair of rotating grooves distributed on the left and right, and the two end portions of the intermediate shaft are provided with chamfers, the driving shaft and the rotating shaft both extend into the rotating grooves, and the spring force of the elastic installation of the connecting rod is greater than the elastic force of the first spring.

[0016] An installation method implemented according to the UHV porcelain insulator support auxiliary assembly, the installation method comprising the following steps:

[0017] Step 1: Install the transverse sliding rod and the screw tube in the lateral screw hole of the mounting seat, then connect the third pull rope to the inner liner tube, and then insert and fix the inner liner tube in the external threaded tube;

[0018] Step 2: Install the rotating rod assembly in a direction perpendicular to the extension direction of the transmission cable, install it in the insulator, connect the second pull rope to the third pull rope through the inner liner, install a rubber gasket on the outside of the mounting seat, and then rotate the insulator thread to install it on the external threaded barrel;

[0019] Step 3: Insert and install the threaded pin in the horizontal sliding rod, rotate the rotating rod assembly to tighten the second pull rope, and then install the pull rod.

[0020] Compared with the prior art, the present invention has the following beneficial effects:

[0021] The present invention realizes supporting connection of insulators by providing a pull rod structure, and cooperates with the through connection of the insulator by the rotating rod assembly, so as to ensure that the insulator does not fall off the electric pole. At the same time, by providing three sets of pull rope structures and cooperating with the rotating rod assembly, a stable supporting structure is formed. When unilateral traction and stretching occur, the insulator can be unilaterally offset. During the offset process, the clamping and fixing of the cable by the clamp is further increased, so that the transmission cable is always tied to the insulator, and the transmission cable is prevented from falling downward. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is a schematic diagram of the cross-sectional support structure of the power transmission cable of the present invention;

[0023] Figure 2 for Figure 1 A magnified view of the structure at center;

[0024] Figure 3 It is a schematic diagram of the three-dimensional structure of the connection between the mounting seat and the inner liner pipe of the present invention;

[0025] Figure 4 It is an exploded view of the assembly of the mounting seat and the inner liner pipe of the present invention;

[0026] Figure 5 for Figure 2 A magnified view of the structure at C in the middle;

[0027] Figure 6 It is an assembly diagram of the latch assembly of the present invention;

[0028] Figure 7 An exploded view of the latch assembly of the present invention;

[0029] Figure 8 This is a schematic diagram of the transmission cable extension direction structure of the present invention

[0030] Fig. 9 for Figure 8 A magnified view of the structure at B in the middle;

[0031] Fig.10 It is a schematic diagram of the three-dimensional structure of the rotating rod assembly of the present invention;

[0032] Fig.11 It is a schematic diagram of the structure of installing the limit assembly of the present invention on the rotating rod assembly.

[0033] In the figure: 1. electric pole; 2. insulator; 3. mounting seat; 4. pull rod; 5. lower seat; 6. support member; 7. transmission cable; 8. clamp; 9. first elastic member; 10. first pull rope; 11. second pull rope; 12. external threaded barrel; 13. stepped inner groove; 14. wire groove; 15. external expansion hole; 16. threaded pin; 17. rubber gasket; 18. inner lining tube; 19. guide wheel; 20. third pull rope; 21. lateral screw hole; 22. mounting screw tube; 23. transverse Sliding rod; 24. first spring; 25. limiting cover; 26. telescopic inner cavity; 27. through hole; 28. intermediate shaft; 29. ​​rotating shaft; 30. driving shaft; 31. upper seat; 32. second elastic member; 33. rubber rod; 34. rotating groove; 35. sleeve ring; 36. elastic pull handle; 37. inner groove; 38. side groove; 39. side strip; 40. extension arm; 41. second spring; 42. connecting rod; 43. adjusting inner cavity; 44. connecting inner cavity; 45. wire hole; 46. card slot. DETAILED DESCRIPTION

[0034] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. 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.

[0035] See also Figures 1 to 11 , the present invention provides a technical solution:

[0036] A UHV porcelain insulator support auxiliary assembly comprises a power pole 1 and an insulator 2. A mounting seat 3 is provided at the upper end of the power pole 1. An external threaded barrel 12 threadedly connected to the insulator 2 is provided on the mounting seat 3. A rubber gasket 17 is provided between the outer side of the mounting seat 3 and the insulator 2. A support member 6 for supporting a power transmission cable 7 is provided at the upper end of the insulator 2. A clamp 8 for elastically mounting and clamping the power transmission cable 7 is provided on the support member 6.

[0037] The purpose of clamping the power transmission cable 7 is achieved through the cooperation of the clamp 8 and the support 6, the power transmission cable 7 is supported by the insulator 2, and the elastic connection between the mounting seat 3 and the insulator 2 is achieved by the rubber gasket 17.

[0038] A rotatable rotating rod assembly is inserted through the insulator 2, and both ends of the rotating rod assembly are elastically connected to the electric pole 1. An elastically installed latch assembly is laterally inserted between the lower end of the insulator 2, the rubber gasket 17 and the mounting seat 3.

[0039] By providing an elastically mounted latch assembly, a lateral plug-in support is formed between the insulator 2 and the mounting seat 3, providing additional supporting force when tilting occurs.

[0040] A third pull rope 20 is provided on the latch assembly, and a second pull rope 11 is provided on the rotating rod assembly. One end of the second pull rope 11 is rotatably wound around the rotating rod assembly, and the other end of the second pull rope 11 pulls the third pull rope 20. The rotating rod assembly includes an intermediate shaft 28 around which the second pull rope 11 is wound and rubber rods 33 symmetrically distributed at both ends of the intermediate shaft 28. The rubber rod 33 is provided with a first pull rope 10 connected to the clamp 8, and a limit assembly for limiting the rotation angle is provided on the rotating rod assembly.

[0041] By setting a limit assembly, the rotation, winding and tightening of the second tensioning rope 11 are realized, and the rotation angle of the rotating rod assembly is fixed. By setting a connection between the third pull rope 20 and the second pull rope 11, when the insulator 2 is offset under lateral traction, the rotating rod assembly will slide laterally, so that the rubber rod 33 pulls the first pull rope 10, and drives the clamp 8 to further clamp the transmission cable 7, thereby ensuring a stable connection with the insulator 2.

[0042] Working principle: First, the insulator 2, the mounting seat 3 and the external threaded tube 12 are used for fixed installation, and then the support 6 and the clamp 8 are used to support the transmission cable 7. The second pull rope 11 is wound and tightened and fixed by the rotation and limiting of the rotating rod assembly, and the pin assembly is synchronously driven to laterally limit the position of the insulator 2.

[0043] When lateral traction occurs and causes the insulator 2 to tilt, it will squeeze the rubber gasket 17, causing the rotating rod assembly to tilt on one side, so that the rubber rod 33, under the traction of the second pull rope 11, further pulls the first pull rope 10, driving the clamp 8 to further clamp the transmission cable.

[0044] Embodiment 2: On the basis of Embodiment 1, in order to ensure the sliding of the rotating rod assembly and the driving of the rubber rod 33, a rotating groove 34 is transversely penetrated through the upper end of the insulator 2, an inner groove 37 connected with the rotating groove 34 is provided in the inner cavity of the insulator 2, and a stepped inner groove 13 is provided at the lower end of the insulator 2. The lower end of the stepped inner groove 13 is pressed onto the rubber gasket 17, and the upper end of the stepped inner groove 13 is threadedly connected to the external threaded tube 12. The inner groove 37 is connected to the stepped inner groove 13 through the wire groove 14, and the second pull rope 11 extends along the wire groove 14.

[0045] The rotation groove 34 is provided to realize the limited installation of the rotation rod assembly, the stepped inner groove 13 is used to realize the pressing of the rubber gasket 17, the wire groove 14 is used to realize the extension of the second pull rope 11, and the inner groove 37 is used to facilitate the subsequent traction of the rubber rod 33.

[0046] An upper seat 31 is provided at both ends of the rotating rod assembly, and a pair of lower seats 5 are provided on both sides of the upper end beam of the utility pole 1. The upper seat 31 and the lower seat 5 are connected by a rotatably installed pull rod 4. The rotating rod assembly includes a rotating shaft 29 and a driving shaft 30. The rotating shaft 29 is rotatably installed on the upper seat 31 on one side, and the driving shaft 30 is rotatably installed on the upper seat 31 on the other side. The rotating shaft 29 and the driving shaft 30 are connected to the intermediate shaft 28 through a rubber rod 33 inserted in the rotating groove 34. A second elastic member 32 is sleeved on the rotating shaft 29 and the driving shaft 30, and the other end of the second elastic member 32 is pressed on the outer wall of the insulator 2.

[0047] The second elastic member 32 is provided to achieve elastic installation of both ends of the rotating rod assembly.

[0048] The inner diameter of the rotating groove 34 is larger than the outer diameter of the rubber rod 33. A ring 35 is rotatably sleeved on the outer wall of the rubber rod 33. A pair of laterally extended side grooves 38 distributed in a circumferential array are provided on the inner wall of the rotating groove 34. The ring 35 is provided with a protrusion that is slidably inserted into the side groove 38. One end of the first pull rope 10 is fixedly connected to the ring 35, and the other end of the first pull rope 10 is connected to the clamp 8. The upper end of the clamp 8 is pressed on the outer wall of the transmission cable 7. A first elastic member 9 is sleeved on the first pull rope 10. The first elastic member 9 is pressed between the clamp 8 and the top surface of the insulator 2. The first elastic member 9 and the second elastic member 32 are both rubber rings.

[0049] The first elastic member 9 is used to realize elastic installation of the clamp 8 on the power transmission cable 7 .

[0050] Working principle: Due to the long length and thickness of the transmission cable 7, the traction force on one side is large. Figure 8 As shown, the forces on both sides are balanced, and the insulator 2 maintains a vertical upward supporting force. However, when one side is unbalanced, due to the gravity of the transmission cable 7, the traction on one side is greater, which will cause a deviation to one side.

[0051] During the displacement process, the insulator 2 tilts to one side, squeezing the rubber gasket 17, and at the same time, under the action of the pull rod 4 on one side, the traction rotating rod assembly squeezes the second elastic member 32 on one side, driving the rotating rod assembly to slide. During the sliding process, the intermediate shaft 28 is unilaterally displaced, so that the other end thereof is disengaged from the rotating groove 34, and the end of the rubber rod 33 extends into the inner groove 37. At this time, under the traction of the second pull rope 11, the rubber rod 33 is deformed and stretched downward, thereby pulling the first pull rope 10, so that the clamp 8 squeezes the first elastic member 9, thereby further clamping and fixing the transmission cable 7 to prevent it from being separated from the insulator 2.

[0052] Example 3: On the basis of Example 2, in order to facilitate the installation of the insulator and the adjustment of the pull rope structure, the limit assembly includes a slot 46 and an elastic pull handle 36. A pair of side strips 39 are provided on the arc outer wall of the drive shaft 30. The elastic pull handle 36 is slidably inserted on the side strip 39. The elastic pull handle 36 is sleeved on the end of the drive shaft 30, and one end of the elastic pull handle 36 extends to the outside of the upper seat 31. A second spring 41 is pressed between the elastic pull handle 36 and the upper seat 31. A plurality of groups of slots 46 distributed in a circular array are provided on the upper seat 31, and an extension arm 40 that can be snapped into the slot 46 is provided on the outer wall of the elastic pull handle 36.

[0053] By setting the cooperation between the elastic pull handle 36 and the side strip 39, when it is necessary to rotate the rotating rod assembly, the elastic pull handle 36 is stretched outward, so that the second spring 41 is compressed, and the elastic pull handle 36 and the side strip 39 maintain a sliding connection, and then the rotation of the elastic pull handle 36 is used to drive the overall rotation of the rotating rod assembly. When the second pull rope 11 is tightened, the elastic pull handle 36 is reset, so that the extension arm 40 is stuck in the slot 46, thereby achieving the purpose of limiting the rotation angle.

[0054] The latch assembly includes a mounting screw 22, a transverse slide bar 23 and a threaded latch 16. A pair of lateral screw holes 21 in the same extension direction as the rotating rod assembly are arranged on the arc side wall of the mounting seat 3. The mounting screw 22 is threadedly installed in the lateral screw hole 21. A telescopic inner cavity 26 is arranged in the mounting screw 22. The transverse slide bar 23 is elastically installed in the telescopic inner cavity 26. A through hole 27 corresponding to the lateral screw hole 21 is arranged on the rubber gasket 17. An external expansion hole 15 corresponding to the through hole 27 is arranged on the insulator 2. An internal threaded hole is arranged on one end of the transverse slide bar 23 facing the external expansion hole 15. The threaded latch 16 is inserted along the external expansion hole 15 and the through hole 27 and threadedly installed in the internal threaded hole.

[0055] By setting up the pin assembly, the support strength of the insulator 2 for unilateral inclination along the extension direction of the transmission cable 7 is provided. By installing the threaded pin 16 externally, interference with the installation of the insulator 2 is avoided. By utilizing the cooperation of the installation screw 22 and the transverse slide bar 23, the elastic installation of the threaded pin 16 is achieved. When the insulator 2 is unilaterally inclined, the threaded pin 16 will be pulled, thereby achieving the purpose of stretching the second pull rope 11, so that the rubber rod 33 is pulled.

[0056] An adjusting inner cavity 43 is provided in the mounting seat 3 and the external threaded tube 12, and an inner liner tube 18 is fixedly inserted and installed in the adjusting inner cavity 43, the lateral screw hole 21 is connected to the adjusting inner cavity 43, and a limiting cover 25 is provided on the side of the mounting screw tube 22 close to the adjusting inner cavity 43, a first spring 24 is pressed between the transverse sliding rod 23 and the limiting cover 25, a wire hole 45 corresponding to the lateral screw hole 21 is provided on the inner liner tube 18, one end of the transverse sliding rod 23 is connected to one end of the third pull rope 20, and the middle section of the third pull rope 20 extends into the inner liner tube 18 along the wire hole 45, a pair of connecting inner cavities 44 distributed up and down are provided in the inner liner tube 18, a guide wheel 19 is provided in the lower end connecting inner cavity 44, and an elastically installed connecting rod 42 is provided in the upper end connecting inner cavity 44, the pair of connecting inner cavities 44 distributed up and down are connected to each other, the third pull rope 20 is connected to the connecting rod 42 through the guide wheel 19, and the other end of the connecting rod 42 is connected to the second pull rope 11.

[0057] By providing the first spring 24 , elastic installation of the transverse slide bar 23 is achieved, and the guide wheel 19 is used to achieve smooth connection between the second pull rope 11 and the third pull rope 20 .

[0058] Both ends of the intermediate shaft 28 are respectively inserted into a pair of rotating grooves 34 distributed on the left and right, and chamfers are set at both ends of the intermediate shaft 28. The drive shaft 30 and the rotating shaft 29 both extend into the rotating grooves 34. The spring force of the elastically installed connecting rod 42 is greater than the elastic force of the first spring 24.

[0059] By setting the chamfer, it is convenient to realize that the intermediate shaft 28 can be automatically reset to the rotating groove 34 under the traction of the rubber rod 33 when straightening the insulator 2 during maintenance, so as to avoid internal jamming. By limiting the installation elasticity of the connecting rod 42, after the inner liner tube 18 is installed, under the elastic reset force of the position of the connecting rod 43, the first spring 24 is pulled by the rope, so that the transverse slide rod 23 extends to the inside of the installation screw tube 22, so as to facilitate the installation of the rubber gasket 17 and the subsequent insulator 2.

[0060] An installation method implemented according to a UHV porcelain insulator support auxiliary assembly, the installation method comprising the following steps:

[0061] Step 1: Install the transverse sliding rod 23 and the screw tube 22 in the lateral screw hole 21 of the mounting seat 3, then connect the third pull rope 20 to the inner liner tube 18, and then insert and fix the inner liner tube 18 in the external threaded tube 12;

[0062] Step 2: Install the rotating rod assembly in a direction perpendicular to the extension direction of the transmission cable 7, install it in the insulator 2, connect the second pull rope 11 to the third pull rope 20 through the inner lining tube 18, install the rubber gasket 17 on the outside of the mounting seat 3, and then install the insulator 2 on the external threaded barrel 12 by threading;

[0063] Step 3: Insert and install the threaded pin 16 in the transverse sliding rod 23, rotate the rotating rod assembly to tighten the second pull rope 11, and then install the pull rod 4.

[0064] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. An ultra-high voltage porcelain insulator support auxiliary assembly, comprising a power pole (1) and an insulator (2), wherein a mounting seat (3) is arranged at the upper end of the power pole (1), an external threaded cylinder (12) threadedly connected to the insulator (2) is arranged on the mounting seat (3), a rubber gasket (17) is arranged between the outer side of the mounting seat (3) and the insulator (2), a support member (6) for supporting a power transmission cable (7) is arranged at the upper end of the insulator (2), a clamp (8) for elastically mounting and clamping the power transmission cable (7) is arranged on the support member (6), and the characteristics are: A rotatable rotating rod assembly is inserted through the insulator (2), and the two ends of the rotating rod assembly are elastically connected to the electric pole (1). An elastically installed pin assembly is transversely inserted between the lower end of the insulator (2), the rubber gasket (17) and the mounting seat (3). A third pull rope (20) is arranged on the pin assembly. A second pull rope (11) is arranged on the rotating rod assembly. One end of the second pull rope (11) is rotatably wound around the rotating rod assembly, and the other end of the second pull rope (11) pulls the third pull rope (20). The rotating rod assembly includes an intermediate shaft (28) wound around the second pull rope (11) and rubber rods (33) symmetrically distributed at both ends of the intermediate shaft (28). The rubber rod (33) is provided with a first pull rope (10) connected to a clamp (8). The rotating rod assembly is provided with a limit assembly for limiting the rotation angle.

2. The UHV porcelain insulator support auxiliary assembly according to claim 1, characterized in that: A rotation groove (34) is transversely penetrated at the upper end of the insulator (2); an inner groove (37) connected to the rotation groove (34) is provided in the inner cavity of the insulator (2); a stepped inner groove (13) is provided at the lower end of the insulator (2); the lower end of the stepped inner groove (13) is pressed onto the rubber gasket (17); the upper end of the stepped inner groove (13) is threadedly connected to the external threaded barrel (12); the inner groove (37) is connected to the stepped inner groove (13) via a wire groove (14); and the second pull rope (11) extends along the wire groove (14).

3. The UHV porcelain insulator support auxiliary assembly according to claim 2, characterized in that: An upper seat (31) is provided at both ends of the rotating rod assembly, and a pair of lower seats (5) are provided on both sides of the upper end cross beam of the electric pole (1). The upper seat (31) and the lower seat (5) are connected by a rotatably installed pull rod (4). The rotating rod assembly includes a rotating shaft (29) and a driving shaft (30). The rotating shaft (29) is rotatably installed on the upper seat (31) on one side, and the driving shaft (30) is rotatably installed on the upper seat (31) on the other side. The rotating shaft (29) and the driving shaft (30) are connected to the intermediate shaft (28) through a rubber rod (33) inserted in the rotating groove (34). A second elastic member (32) is sleeved on the rotating shaft (29) and the driving shaft (30), and the other end of the second elastic member (32) is pressed onto the outer wall of the insulator (2).

4. The UHV porcelain insulator support auxiliary assembly according to claim 3, characterized in that: The inner diameter of the rotating groove (34) is larger than the outer diameter of the rubber rod (33); a ring (35) is rotatably sleeved on the outer wall of the rubber rod (33); a pair of transversely extended side grooves (38) distributed in a circumferential array are provided on the inner wall of the rotating groove (34); a protrusion slidably inserted into the side groove (38) is provided on the ring (35); one end of the first pull rope (10) is fixedly connected to the ring (35); the other end of the first pull rope (10) is connected to the clamp (8); the upper end of the clamp (8) is pressed onto the outer wall of the power transmission cable (7); a first elastic member (9) is sleeved on the first pull rope (10); the first elastic member (9) is pressed between the clamp (8) and the top surface of the insulator (2); the first elastic member (9) and the second elastic member (32) are both rubber rings.

5. The UHV porcelain insulator support auxiliary assembly according to claim 4, characterized in that: The limit assembly comprises a slot (46) and an elastic handle (36). A pair of side strips (39) are provided on the arc outer wall of the driving shaft (30). The elastic handle (36) is slidably inserted on the side strip (39). The elastic handle (36) is sleeved on the end of the driving shaft (30), and one end of the elastic handle (36) extends to the outside of the upper seat (31). A second spring (41) is pressed between the elastic handle (36) and the upper seat (31). A plurality of groups of slots (46) distributed in a circular array are provided on the upper seat (31), and an extension arm (40) which can be snapped into the slot (46) is provided on the outer wall of the elastic handle (36).

6. The UHV porcelain insulator support auxiliary assembly according to claim 5, characterized in that: The latch assembly comprises a mounting screw tube (22), a transverse slide bar (23) and a threaded latch pin (16); a pair of lateral screw holes (21) in the same extension direction as the rotating rod assembly are arranged on the arc side wall of the mounting seat (3); a mounting screw tube (22) is threadedly mounted in the lateral screw hole (21); a telescopic inner cavity (26) is arranged in the mounting screw tube (22); a transverse slide bar (23) is elastically mounted in the telescopic inner cavity (26); a through hole (27) corresponding to the lateral screw hole (21) is arranged on the rubber gasket (17); an external expansion hole (15) corresponding to the through hole (27) is arranged on the insulator (2); an internal threaded hole is arranged at one end of the transverse slide bar (23) facing the external expansion hole (15); and the threaded latch pin (16) is inserted along the external expansion hole (15) and the through hole (27) and threadedly mounted in the internal threaded hole.

7. The UHV porcelain insulator support auxiliary assembly according to claim 6, characterized in that: An adjusting inner cavity (43) is provided in the mounting seat (3) and the externally threaded tube (12), an inner lining tube (18) is fixedly inserted and installed in the adjusting inner cavity (43), the lateral screw hole (21) is connected to the adjusting inner cavity (43), and a limiting cover (25) is provided on the side of the mounting screw tube (22) close to the adjusting inner cavity (43), a first spring (24) is pressed between the transverse sliding rod (23) and the limiting cover (25), a wire hole (45) corresponding to the lateral screw hole (21) is provided on the inner lining tube (18), one end of the transverse sliding rod (23) is connected to one end of the third pull rope (20), and the middle section of the third pull rope (20) extends along the wire hole (45) into the inner lining tube (18).

8. The UHV porcelain insulator supporting auxiliary assembly according to claim 7, characterized in that: The inner lining tube (18) is provided with a pair of connecting cavities (44) distributed up and down, a guide wheel (19) is provided in the connecting cavity (44) at the lower end, and an elastically installed connecting rod (42) is provided in the connecting cavity (44) at the upper end. The pair of connecting cavities (44) distributed up and down are connected to each other, and the third pull rope (20) is connected to the connecting rod (42) through the guide wheel (19), and the other end of the connecting rod (42) is connected to the second pull rope (11).

9. The UHV porcelain insulator support auxiliary assembly according to claim 8, characterized in that: The two ends of the intermediate shaft (28) are respectively inserted into a pair of rotating grooves (34) distributed on the left and right, and the two end portions of the intermediate shaft (28) are provided with chamfers, the driving shaft (30) and the rotating shaft (29) both extend into the rotating grooves (34), and the spring force of the elastically installed connecting rod (42) is greater than the spring force of the first spring (24).

10. A method for installing the UHV porcelain insulator support auxiliary assembly according to any one of claims 1 to 9, characterized in that: The installation method comprises the following steps: Step 1: Install the transverse sliding rod (23) and the screw tube (22) in the lateral screw hole (21) of the mounting seat (3), then connect the third pull rope (20) to the inner liner tube (18), and then insert and fix the inner liner tube (18) in the external threaded tube (12); Step 2: Install the rotating rod assembly in a direction perpendicular to the extension direction of the transmission cable (7), install it in the insulator (2), connect the second pull rope (11) to the third pull rope (20) through the inner lining tube (18), install the rubber gasket (17) on the outer side of the mounting seat (3), and then install the insulator (2) on the external threaded barrel (12) by threading; Step 3: Insert and install the threaded pin (16) in the transverse sliding rod (23), rotate the rotating rod assembly to tighten the second pull rope (11), and then install the pull rod (4).

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