A conductor installation structure and method for overhead distribution lines of 10kV and below

Abstract

The present invention belongs to the technical field of conductor erection of overhead distribution lines, and specifically relates to a conductor erection structure and method for overhead distribution lines of 10kV and below, wherein the conductor erection structure comprises a conductor, the outer part of the conductor is wrapped with armor, the armor comprises a protective sleeve, and a discharge tip is rotatably arranged in the protective sleeve; a traction head and a connector are respectively arranged at both ends of the conductor, and the traction head is connected to an insulator on a pole tower through a joint; a rotation control mechanism for controlling the rotation of the discharge tip is arranged on the connector, and in the process of controlling the rotation of the discharge tip by the rotation control mechanism, the axis of the discharge tip and the axis of the conductor are in the same plane, and an elastic support rod is also arranged in the protective sleeve, a rotating shaft is rotatably installed on the elastic support rod, a conductive mounting seat is sleeved on the rotating shaft, and the discharge tip is installed on the conductive mounting seat. The present invention can effectively slow down the wear speed of the conductor, and make the conductor have lightning protection performance, thereby improving the service life and safety of the conductor.

Description

Technical Field

[0001] The invention belongs to the technical field of conductor installation of overhead distribution lines, and in particular relates to a conductor installation structure and method for overhead distribution lines of 10 kV and below. Background Art

[0002] The main function of the high-voltage conductor rack is to support and fix the high-voltage wires, ensuring that the wires maintain a certain distance and height in the air, so as to avoid the influence of ground obstacles on power transmission. It uses insulators to fix the transmission wires on the towers erected on the ground to transmit electric energy. Ground wires are usually used for lightning protection, but because the intensity of lightning strikes is uncontrollable and the erection structures of different transmission lines are also different, ground wires cannot effectively protect against lightning strikes.

[0003] To this end, it is necessary to seek a more effective way to prevent lightning strikes. For example, a Chinese invention patent application with application publication number CN115831450A and application publication date 2023.03.21 discloses a lightning protection conductor and installation method for an overhead transmission line, which evenly distributes discharge tips on the bare conductor, and forms an overhead line with this lightning protection conductor. In the thunderstorm season, due to the presence of the discharge tip, charge accumulation can be effectively avoided, and the probability of lightning hitting the conductor can be minimized, thereby reducing the probability of line tripping accidents caused by lightning strikes. However, in this method, due to the long length of the electric wire, when transporting the wire, it is usually necessary to bend the wire to reduce the space occupied by the wire. At the same time, when storing, the wire will also be bent and overlapped for storage. If the discharge tip is always in a vertical state, it will easily abut against the inner wall of the armor, causing damage to the discharge tip and the external armor, thereby affecting the protection of the wire. Summary of the invention

[0004] The technical problem to be solved by the present invention is to provide a conductor installation structure and method for overhead distribution lines of 10kV and below in view of the shortcomings of the prior art. The present invention can effectively slow down the wear rate of the conductor and make the conductor have lightning protection performance, thereby significantly improving the service life and safety of the conductor. At the same time, the rotation of the discharge tip solves the problem of deformation or even breakage of the discharge tip due to bending force during the transportation of the conductor.

[0005] This solution is achieved through the following technical measures: a conductor erection structure for overhead distribution lines of 10kV and below, comprising a conductor, the outer surface of the conductor is wrapped with armor, the armor comprises a protective sleeve, and a discharge tip is rotatably arranged in the protective sleeve; The two ends of the conductor are respectively provided with a traction head and a connection head, and the traction head is connected to the insulator on the pole tower through a joint; the connection head is provided with a rotation control mechanism for controlling the rotation of the discharge tip, and in the process of controlling the rotation of the discharge tip by the rotation control mechanism, the axis of the discharge tip and the axis of the conductor are in the same plane, and an elastic support rod is also provided in the protective sleeve, and a rotating shaft is rotatably mounted on the elastic support rod, and a conductive mounting seat is sleeved on the rotating shaft, and the discharge tip is mounted on the conductive mounting seat; Before connecting the wire, the rotation of the rotating shaft is controlled by the rotation control mechanism, and the rotating shaft drives the conductive mounting seat and the discharge tip to rotate.

[0006] Preferably, an annular support frame is provided in the protective sleeve, and at least two annular support frames are provided; the annular support frame includes an outer support ring, an inner support ring and an elastic straight rod; the outer support ring is connected to the inner wall of the protective sleeve; the inner support ring abuts against the outer wall of the wire, and the inner support ring is connected to the outer support ring through an elastic straight rod.

[0007] Preferably, the rotation control mechanism includes an elastic synchronization rod, a connecting disk and a linear drive assembly; a guide bracket is also provided on the outer support ring, the elastic synchronization rod is slidably matched with the guide bracket, and a slide groove is provided on the elastic synchronization rod; the connecting disk is connected to the rotating shaft, and the axis of the connecting disk is colinear with the axis of the rotating shaft; an eccentrically arranged fixed shaft is installed on the connecting disk, and the fixed shaft is slidably matched with the slide groove; the linear drive assembly is arranged on the connecting head and is used to control the sliding of the elastic synchronization rod; before connecting the wire, the elastic synchronization rod is first driven by the linear drive assembly to slide along the guide bracket, the elastic synchronization rod squeezes and pushes the fixed shaft to slide along the slide groove, the fixed shaft drives the connecting disk and the rotating shaft to rotate, and the rotating shaft drives the conductive mounting seat and the discharge tip to rotate.

[0008] Preferably, the included angle between the extending direction of the slide groove and the extending direction of the elastic synchronization rod is an acute angle.

[0009] Preferably, the linear drive assembly includes a connecting ring, a rotating handle, an annular pad and an elastic connecting rod; the connecting ring is connected to the end of the elastic synchronization rod; the rotating handle is movably arranged at the end of the protective sleeve, and a threaded rod is arranged on the rotating handle, and the threaded rod is threadedly connected to the connecting head; the annular pad is rotatably installed on the rotating handle; the two ends of the elastic connecting rod are respectively connected to the connecting ring and the annular pad; before connecting the wire, the rotating handle is rotated first, and the rotating handle drives the threaded rod to rotate, and then the rotating handle and the annular pad are pushed to move through the threaded connection between the threaded rod and the connecting head, and the annular pad pulls the connecting ring through the elastic connecting rod, and the connecting ring drives the elastic synchronization rod to slide along the guide bracket to control the state of the discharge tip.

[0010] Preferably, an anti-slip groove is provided on the outer side of the rotating handle.

[0011] Preferably, an accommodating groove for accommodating the discharge tip is provided on the inner wall of the protective sleeve.

[0012] Preferably, the bottom of the conductive mounting seat is provided with an arc-shaped abutting end for abutting against the wire.

[0013] Preferably, a nitrogen spring is installed on the connecting head, and the piston rod of the nitrogen spring is connected to the annular gasket.

[0014] The present invention also provides a method for laying out a conductor of an overhead distribution line of 10 kV or less based on the conductor laying structure of the overhead distribution line of 10 kV or less, comprising the following steps: S1: Determine the line direction and conduct field survey to determine the location, pole spacing and pole type of important corner poles; S2: Drive wooden stakes into each pole pit, write the pole number on the stakes, and determine the various pulling lines; S3: Pole tower assembly: After assembling the cross arms, insulators, etc. on the pole on the ground, the pole is erected as a whole; S4: Connect the conductor to the connector on the pole tower: Before connecting the conductor, first control the discharge tip to rotate through the rotation control mechanism until the axis of the discharge tip is perpendicular to the axis of the conductor.

[0015] Beneficial effects of the present invention: 1. The present invention realizes the function of protecting the wire through armoring, which not only effectively slows down the wear speed of the wire, but also makes the wire have lightning protection performance, thereby significantly improving the service life and safety of the wire. At the same time, by introducing a rotation control mechanism, the rotation of the discharge tip is accurately controlled, solving the problem of deformation or even breakage of the discharge tip due to bending force during the transportation of the wire; 2. The present invention realizes the function of controlling the rotation of the discharge tip through an elastic support rod, a rotating shaft and a conductive mounting seat, and utilizes the contact between the conductive mounting seat and the wire to make the wire have lightning protection performance. When controlling the rotation of the discharge tip, the operator controls the rotation of the rotating shaft through a rotating control mechanism, and the rotating shaft drives the conductive mounting seat and the discharge tip to rotate, thereby completing the state adjustment of the discharge tip. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a three-dimensional structural schematic diagram of the wire erection structure in the present invention.

[0017] Figure 2 It is a schematic cross-sectional structural diagram of the conductor, armor and rotation control mechanism in the present invention when the discharge tip is in a vertical state.

[0018] Figure 3 yes Figure 2 Enlarged view of point A in the middle.

[0019] Figure 4 It is a three-dimensional structural schematic diagram of the armor and rotation control mechanism in the present invention.

[0020] Figure 5 It is a schematic diagram of the exploded structure of the discharge tip, the conductive mounting seat and the connecting plate in the present invention.

[0021] Figure 6 It is a schematic cross-sectional structural diagram of the conductor, armor and rotation control mechanism in the present invention when the discharge tip is in the process of rotation.

[0022] Figure 7 yes Figure 6 Enlarged view of point B in the middle.

[0023] Figure 8 It is a three-dimensional structural schematic diagram of the rotation control mechanism in the present invention.

[0024] Fig. 9 It is a schematic diagram of the three-dimensional structure of the cooperation between the annular support frame and the connecting ring in the present invention.

[0025] Fig.10 It is a schematic diagram of the exploded structure of the rotation control mechanism in the present invention.

[0026] The numbers in the figure are: 1-conductor; 11-traction head; 12-connector; 121-guide groove; 122-nitrogen spring; 2-armor; 21-protective sleeve; 211-accommodating groove; 22-discharging tip; 23-elastic support rod; 231-rotating shaft; 232-conductive mounting seat; 2321-arc-shaped abutting end; 24-annular support frame; 241-outer support ring; 242-inner support ring; 243-elastic straight rod; 244-guide bracket; 3-rotation control mechanism; 31-elastic synchronization rod; 311-slide groove; 312-limiting block; 32-connecting plate; 321-fixed shaft; 33-linear drive assembly; 331-connecting ring; 332-rotating handle; 3321-anti-slip groove; 3322-threaded rod; 333-ring pad; 334-elastic connecting rod. DETAILED DESCRIPTION

[0027] In order to clearly illustrate the technical features of this solution, this solution is described below through specific implementation methods and in conjunction with the accompanying drawings.

[0028] A conductor erection structure for overhead distribution lines of 10 kV and below, comprising a conductor 1, wherein the conductor 1 is wrapped with an armor 2 on the outside, wherein the armor 2 comprises a protective sleeve 21, wherein a discharge tip 22 is rotatably arranged in the protective sleeve 21; a traction head 11 and a connector 12 are respectively arranged at both ends of the conductor 1, wherein the traction head 11 is connected to an insulator on a pole tower via a joint; a rotation control mechanism 3 for controlling the rotation of the discharge tip 22 is arranged on the connector 12, wherein during the process of controlling the rotation of the discharge tip 22 by the rotation control mechanism 3, the axis of the discharge tip 22 and the axis of the conductor 1 are located on the same plane.

[0029] The present invention protects the conductor 1 by the armor 2, which not only effectively slows down the wear rate of the conductor 1, but also makes the conductor 1 have lightning protection performance, thereby significantly improving the service life and safety of the conductor 1. At the same time, by introducing the rotation control mechanism 3, the rotation of the discharge tip 22 is accurately controlled, and the problem of deformation or even breakage of the discharge tip 22 due to bending force during the transportation of the conductor 1 is solved, which not only solves the problem of traditional lightning protection conductors 1 in transportation, but also provides a strong guarantee for the stable operation of the entire power transmission system.

[0030] There are multiple discharge tips 22 and they are evenly divided into multiple groups, each group includes at least three discharge tips 22, multiple discharge tips 22 in the same group are distributed in a circular array around the axis of the conductor 1, multiple groups of discharge tips 22 are distributed at equal intervals along the axis of the conductor 1, and the traction head 11 and the connection head 12 are connected to the inner wall of the protective sleeve 21. When connecting the conductor 1, the operator first controls the rotation of the discharge tip 22 through the rotation control mechanism 3 until the axis of the discharge tip 22 is perpendicular to the axis of the conductor 1, and then connects the conductor 1 to the connector on the tower. Before the conductor 1 leaves the factory, the conductor 1 and the armor 2 are partially assembled, and then the discharge tip 22 is controlled to rotate by the rotation control mechanism 3 so that the axis of the discharge tip 22 is parallel to the axis of the conductor 1. Since the conductor 1 is long, it is usually necessary to bend the conductor 1 during transportation. When the conductor 1 is bent, the discharge tip 22 will still be close to the conductor 1, and since the discharge tip 22 is in a horizontal state relative to the conductor 1, the bending of the conductor 1 will not cause the sharp part of the discharge tip 22 to contact the inner wall of the protective sleeve 21, thereby avoiding damage to the discharge tip 22 and the protective sleeve 21, thereby improving the portability of the conductor 1 in transportation and storage.

[0031] Reference Figure 2-Figure 5 : An elastic support rod 23 is also provided in the protective sleeve 21; a rotating shaft 231 is rotatably mounted on the elastic support rod 23, a conductive mounting seat 232 is sleeved on the rotating shaft 231, and the discharge tip 22 is mounted on the conductive mounting seat 232; before connecting the wire 1, the rotating shaft 231 is first controlled to rotate by the rotation control mechanism 3, and the rotating shaft 231 drives the conductive mounting seat 232 and the discharge tip 22 to rotate.

[0032] The present invention realizes the function of controlling the rotation of the discharge tip 22 through the elastic support rod 23, the rotating shaft 231 and the conductive mounting seat 232, and makes the conductor 1 have lightning protection performance by utilizing the contact between the conductive mounting seat 232 and the conductor 1. When controlling the rotation of the discharge tip 22, the operator controls the rotation of the rotating shaft 231 through the rotating control mechanism 3, and the rotating shaft 231 drives the conductive mounting seat 232 and the discharge tip 22 to rotate, thereby completing the state adjustment of the discharge tip 22.

[0033] Reference Figure 4 , Figure 6-Figure 8 : An annular support frame 24 is provided in the protective sleeve 21, and at least two annular support frames 24 are provided; the annular support frame 24 includes an outer support ring 241, an inner support ring 242 and an elastic straight rod 243; the outer support ring 241 is connected to the inner wall of the protective sleeve 21; the inner support ring 242 abuts against the outer wall of the conductor 1, and the inner support ring 242 is connected to the outer support ring 241 through the elastic straight rod 243.

[0034] The present invention realizes the function of supporting the wire 1 through the outer support ring 241, the inner support ring 242 and the elastic straight rod 243, and at the same time, the deformation performance of the elastic straight rod 243 is used to ensure the flexibility of the wire 1 while stably supporting the wire 1. The outer support ring 241 and the inner support ring 242 are preferably made of insulating plastic material, and the material of the elastic straight rod 243 is preferably rubber material. When the wire 1 is bent, it is affected by the bending force, and the elastic straight rod 243 will deform to a certain extent, thereby allowing the wire 1 to deviate to a certain extent relative to the protective sleeve 21 to adapt to the bending. After the wire 1 is straightened, the wire 1 is controlled to reset under the elastic force of the elastic straight rod 243, so that the protective sleeve 21 can protect the wire 1 relatively stably. Under the support of the outer support ring 241 and the inner support ring 242, the conductor 1 and the protective sleeve 21 can be stably supported. When the protective sleeve 21 is subjected to external force, it can avoid being penetrated or deformed and affecting the conductor 1. A buffer zone is formed between the protective sleeve 21 and the conductor 1, which can further protect the conductor 1 and better accommodate the discharge tip 22.

[0035] Reference Figure 2 , Figure 3 , Figure 5-Figure 7The rotation control mechanism 3 includes an elastic synchronization rod 31, a connecting disk 32 and a linear drive assembly 33; a guide bracket 244 is also provided on the outer support ring 241, the elastic synchronization rod 31 is slidably matched with the guide bracket 244, and a slide groove 311 is provided on the elastic synchronization rod 31; the connecting disk 32 is connected to the rotating shaft 231, and the axis of the connecting disk 32 is colinear with the axis of the rotating shaft 231; an eccentrically arranged fixed shaft 321 is installed on the connecting disk 32, and the fixed shaft 321 is slidably matched with the slide groove 311; the linear drive assembly 33 is arranged on the connector 12 and is used to control the sliding of the elastic synchronization rod 31; before connecting the wire 1, the elastic synchronization rod 31 is first driven by the linear drive assembly 33 to slide along the guide bracket 244, the elastic synchronization rod 31 squeezes and pushes the fixed shaft 321 to slide along the slide groove 311, the fixed shaft 321 drives the connecting disk 32 and the rotating shaft 231 to rotate, and the rotating shaft 231 drives the conductive mounting seat 232 and the discharge tip 22 to rotate.

[0036] The present invention realizes the function of controlling the rotation of the discharge tip 22 through the elastic synchronization rod 31, the connecting disk 32 and the linear drive assembly 33. There are multiple slide grooves 311 on the elastic synchronization rod 31 and they correspond to the discharge tip 22 one by one; the elastic synchronization rod 31 is preferably made of rubber; the fixed shaft 321 is in inseparable sliding cooperation with the slide groove 311 through the expanded limit ring, so that when the wire 1 is bent, the fixed shaft 321 and the slide groove 311 will not be separated. When controlling the rotation of the discharge tip 22, the operator first drives the elastic synchronization rod 31 to slide along the guide bracket 244 through the linear drive assembly 33, the elastic synchronization rod 31 squeezes and pushes the fixed shaft 321 to slide along the slide groove 311, the fixed shaft 321 drives the connecting disk 32 and the rotating shaft 231 to rotate, and the rotating shaft 231 drives the conductive mounting seat 232 and the discharge tip 22 to rotate, thereby completing the state adjustment of the discharge tip 22.

[0037] Reference Figure 4-Figure 7 : The slide groove 311 is inclined, and the angle between the extension direction of the slide groove 311 and the extension direction of the elastic synchronization rod 31 is an acute angle.

[0038] The present invention achieves the function of more stably pushing the discharge tip 22 to rotate by setting the slide slot 311 at an angle. When the fixed shaft 321 is pushed to rotate by the elastic synchronization rod 31, if the discharge tip 22 is in a horizontal or vertical state, the fixed shaft 321 is located at the end of the slide slot 311, and the moving tracks of the connecting disk 32 and the fixed shaft 321 are circular, so that the moving direction of the elastic synchronization rod 31 is tangent to the rotation direction of the connecting disk 32; if the slide slot 311 is in a vertical state, the movement of the elastic synchronization rod 31 will be blocked, and the elastic synchronization rod 31 itself can be deformed, which is more likely to cause it to get stuck. For this reason, the slide slot 311 is set at an angle to extend the displacement stroke of the elastic synchronization rod 31, so as to more stably push the fixed shaft 321 to rotate around the axis of the connecting disk 32, thereby pushing the conductive mounting seat 232 and the discharge tip 22 to rotate.

[0039] Reference Figure 2 , Figure 8-Figure 10 The linear drive assembly 33 comprises a connecting ring 331, a rotating handle 332, an annular pad 333 and an elastic connecting rod 334; the connecting ring 331 is connected to the end of the elastic synchronization rod 31; the rotating handle 332 is movably arranged at the end of the protective sleeve 21, and a threaded rod 3322 is arranged on the rotating handle 332, and the threaded rod 3322 is threadedly connected to the connector 12; the annular pad 333 is rotatably mounted on the rotating handle 332; the two ends of the elastic connecting rod 334 are respectively connected to the connecting ring 331 and the annular pad 333; before connecting the wire 1, the rotating handle 332 is rotated first, and the rotating handle 332 drives the threaded rod 3322 to rotate, and then the rotating handle 332 and the annular pad 333 are pushed to move through the threaded connection between the threaded rod 3322 and the connector 12, and the annular pad 333 pulls the connecting ring 331 through the elastic connecting rod 334, and the connecting ring 331 drives the elastic synchronization rod 31 to slide along the guide bracket 244 to control the state of the discharge tip 22.

[0040] The present invention realizes the function of driving the elastic synchronization rod 31 to move through the connecting ring 331, the rotating handle 332, the annular pad 333 and the elastic connecting rod 334. When controlling the rotation of the discharge tip 22, the operator first rotates the rotating handle 332, and the rotating handle 332 drives the threaded rod 3322 to rotate, and then the rotating handle 332 and the annular pad 333 are pushed to move through the threaded connection between the threaded rod 3322 and the connector 12, and the annular pad 333 pulls the connecting ring 331 through the elastic connecting rod 334, and the connecting ring 331 drives the elastic synchronization rod 31 to slide along the guide bracket 244, and the elastic synchronization rod 31 squeezes and pushes the fixed shaft 321 to slide along the slide groove 311, and the fixed shaft 321 drives the connecting disk 32 and the rotating shaft 231 to rotate, and the rotating shaft 231 drives the conductive mounting seat 232 and the discharge tip 22 to rotate, thereby completing the state adjustment of the discharge tip 22. When the conductor 1 is bent, the elastic support rod 23 and the elastic synchronization rod 31 are also bent, and the convex part and the concave part of the elastic synchronization rod 31 at the bending place will be greatly offset. For this reason, an elastic connecting rod 334 is provided. Through the transition of the elastic connecting rod 334, the error of the elastic synchronization rods 31 on both sides is reduced, and the discharge tip 22 is prevented from tilting up by itself.

[0041] Reference Figure 6 and Fig.10 : Anti-slip grooves 3321311 are provided on the outer side of the rotating handle 332.

[0042] The present invention realizes the function of facilitating the operator to grasp the rotating handle 332 through the anti-skid groove 3321311. When adjusting the state of the discharge tip 22, the operator needs to grasp and rotate the rotating handle 332. The anti-skid groove 3321311 is provided to improve the anti-skid performance of the rotating handle 332, optimize the operator's gripping experience, and further improve the accuracy of the rotation adjustment of the discharge tip 22 through the threaded cooperation of the threaded rod 3322 and the connector 12, thereby avoiding misoperation, and by setting the thread angle of the threaded rod 3322, the thread self-locking can be achieved, thereby avoiding the discharge tip 22 from rotating by itself due to the influence of external force.

[0043] Reference Figure 2 , Figure 3 , Figure 6 and Figure 7 An accommodating groove 211 for accommodating the discharge tip 22 is formed on the inner wall of the protective sleeve 21 .

[0044] The present invention further achieves the function of preventing the sharp part of the discharge tip 22 from abutting against the inner wall of the protective sleeve 21 through the accommodating groove 21. When the wire 1 is excessively bent, part of the discharge tip 22 may be slightly bulged, thereby damaging the protective sleeve 21 or the discharge tip 22. For this reason, an accommodating groove 211 for accommodating the discharge tip 22 is provided at a corresponding position of the inner wall of the protective sleeve 21, so that the sharp part of the discharge tip 22 is always in the accommodating groove 211 during the rotation process, thereby preventing the sharp part of the discharge tip 22 from abutting against the inner wall of the protective sleeve 21, thereby better protecting the discharge tip 22 and the protective sleeve 21.

[0045] Reference Figure 5 An arc-shaped abutting end 2321 for abutting against the wire 1 is formed at the bottom of the conductive mounting seat 232 .

[0046] The present invention realizes the function of limiting the rotation direction of the conductive mounting seat 232 through the arc-shaped abutting end 2321. By providing the arc-shaped abutting end 2321, the conductive mounting seat 232 can abut against the outer wall of the wire 1 in the vertical state, thereby connecting the discharge tip 22 and the wire 1, so that the discharge tip 22 can be electrically connected to the wire 1 in the vertical state, and through the arc-shaped abutting end 2321 on one side, the conductive mounting seat 232 can only rotate in the direction away from the arc-shaped abutting end 2321, and when it is in the vertical state, it cannot further rotate in the direction of the arc-shaped abutting end 2321, thereby avoiding excessive rotation to separate the conductive mounting seat 232 from the wire 1, thereby preventing the wire 1 from losing its lightning protection capability.

[0047] Reference Fig.10 : A nitrogen spring 122 is installed on the connecting head 12, and the piston rod of the nitrogen spring 122 is connected to the annular gasket 333.

[0048] The present invention realizes the function of pressing the annular pad 333 against the rotating handle 332 through the nitrogen spring 122. When the annular pad 333 is pulled by the rotating handle 332, a large force will be generated between the annular pad 333 and the rotating handle 332. For this reason, the nitrogen spring 122 is provided. When connecting the wire 1, the rotating handle 332 is first rotated, and the rotating handle 332 drives the threaded rod 3322 to rotate, and then the rotating handle 332 is controlled by the threaded rod 3322 to move away from the connector 12. In this process, the piston rod of the nitrogen spring 122 is always tightly matched with the annular pad 333, and then the annular pad 333 is pushed, reducing the force between the annular pad 333 and the rotating handle 332, and avoiding the separation of the annular pad 333 and the rotating handle 332. At the same time, through the support of the nitrogen spring 122, when the wire 1 is bent, the deflection error of the elastic synchronization rod 31 can be reduced.

[0049] The present invention also provides a method for laying out a conductor of an overhead distribution line of 10 kV or less based on the conductor laying structure of the overhead distribution line of 10 kV or less, comprising the following steps: S1: Determine the line direction and conduct field survey to determine the location, pole spacing and pole type of important corner poles; S2: Drive wooden stakes into each pole pit, write the pole number on the stakes, and determine the various pulling lines; S3: Pole tower assembly: After assembling the cross arms, insulators, etc. on the pole on the ground, the pole is erected as a whole; S4: Connect the conductor 1 to the connector on the pole tower: Before connecting the conductor 1, first control the discharge tip 22 to rotate by the rotation control mechanism 3 until the axis of the discharge tip 22 is perpendicular to the axis of the conductor 1.

[0050] Technical features not described in the present invention can be implemented by existing technologies and will not be described in detail here. The present invention is not limited to the above specific embodiments, and changes, modifications, additions or substitutions made by ordinary technicians in the field within the essential scope of the present invention should also fall within the protection scope of the present invention.

Claims

1. A conductor installation structure for overhead distribution lines of 10 kV and below, characterized in that: It comprises a conductor (1), the conductor (1) is externally wrapped with armor (2), the armor (2) comprises a protective sleeve (21), and a discharge tip (22) is rotatably arranged inside the protective sleeve (21); The conductor (1) is provided with a traction head (11) and a connection head (12) at both ends, respectively. The traction head (11) is connected to an insulator on a pole tower via a joint. The connection head (12) is provided with a rotation control mechanism (3) for controlling the rotation of a discharge tip (22). During the process of controlling the rotation of the discharge tip (22), the axis of the discharge tip (22) and the axis of the conductor (1) are located on the same plane. An elastic support rod (23) is also provided in the protective sleeve (21). A rotating shaft (231) is rotatably mounted on the elastic support rod (23). A conductive mounting seat (232) is sleeved on the rotating shaft (231). The discharge tip (22) is mounted on the conductive mounting seat (232). Before connecting the wire (1), the rotation of the rotating shaft (231) is controlled by the rotation control mechanism (3), and the rotating shaft (231) drives the conductive mounting seat (232) and the discharge tip (22) to rotate.

2. The conductor installation structure for overhead distribution lines of 10 kV and below according to claim 1, characterized in that: An annular support frame (24) is provided in the protection sleeve (21), and at least two annular support frames (24) are provided; The annular support frame (24) comprises an outer support ring (241), an inner support ring (242) and an elastic straight rod (243); The outer support ring (241) is connected to the inner wall of the protective sleeve (21); The inner support ring (242) abuts against the outer wall of the wire (1), and the inner support ring (242) is connected to the outer support ring (241) via an elastic straight rod (243).

3. The conductor installation structure for overhead distribution lines of 10 kV and below according to claim 2, characterized in that: The rotation control mechanism (3) comprises an elastic synchronization rod (31), a connecting plate (32) and a linear drive assembly (33); A guide bracket (244) is also provided on the outer support ring (241). The elastic synchronization rod (31) is slidably matched with the guide bracket (244), and a sliding groove (311) is provided on the elastic synchronization rod (31); The connecting disk (32) is connected to the rotating shaft (231), and the axis of the connecting disk (32) is colinear with the axis of the rotating shaft (231); An eccentrically arranged fixed shaft (321) is mounted on the connecting plate (32), and the fixed shaft (321) is slidably matched with the slide groove (311); The linear drive assembly (33) is arranged on the connecting head (12) and is used to control the sliding of the elastic synchronization rod (31); Before connecting the wire (1), the linear drive assembly (33) first drives the elastic synchronization rod (31) to slide along the guide bracket (244), the elastic synchronization rod (31) squeezes and pushes the fixed shaft (321) to slide along the slide groove (311), the fixed shaft (321) drives the connecting plate (32) and the rotating shaft (231) to rotate, and the rotating shaft (231) drives the conductive mounting seat (232) and the discharge tip (22) to rotate.

4. The conductor installation structure for overhead distribution lines of 10 kV and below according to claim 3 is characterized in that: The slide groove (311) is arranged obliquely, and the included angle between the extension direction of the slide groove (311) and the extension direction of the elastic synchronization rod (31) is an acute angle.

5. The conductor installation structure for overhead distribution lines of 10 kV and below according to claim 4, characterized in that: The linear drive assembly (33) comprises a connecting ring (331), a rotating handle (332), an annular pad (333) and an elastic connecting rod (334); The connecting ring (331) is connected to the end of the elastic synchronization rod (31); The rotating handle (332) is movably arranged at the end of the protective sleeve (21), and a threaded rod (3322) is arranged on the rotating handle (332), and the threaded rod (3322) is threadedly connected to the connecting head (12); The annular pad (333) is rotatably mounted on the rotating handle (332); Two ends of the elastic connecting rod (334) are respectively connected to the connecting ring (331) and the annular pad (333); Before connecting the wire (1), the rotating handle (332) is first rotated, and the rotating handle (332) drives the threaded rod (3322) to rotate, and then the rotating handle (332) and the annular pad (333) are pushed to move through the threaded connection between the threaded rod (3322) and the connector (12), and the annular pad (333) pulls the connecting ring (331) through the elastic connecting rod (334), and the connecting ring (331) drives the elastic synchronous rod (31) to slide along the guide bracket (244), thereby controlling the state of the discharge tip (22).

6. The conductor installation structure for overhead distribution lines of 10 kV and below according to claim 5, characterized in that: An anti-slip groove (3321) (311) is provided on the outer side of the rotating handle (332).

7. The conductor installation structure for overhead distribution lines of 10 kV and below according to claim 6, characterized in that: An accommodating groove (211) for accommodating a discharge tip (22) is provided on the inner wall of the protective sleeve (21).

8. The conductor installation structure for overhead distribution lines of 10 kV and below according to claim 7, characterized in that: The bottom of the conductive mounting seat (232) is provided with an arc-shaped abutting end (2321) for abutting against the conductive wire (1).

9. The conductor installation structure for overhead distribution lines of 10 kV and below according to claim 8, characterized in that: A nitrogen spring (122) is installed on the connector (12), and a piston rod of the nitrogen spring (122) is connected to an annular gasket (333).

10. A method for laying conductors of overhead distribution lines of 10 kV and below based on the conductor laying structure of overhead distribution lines of 10 kV and below according to claim 9, characterized in that: The following steps are involved: S1: Determine the line direction and conduct field survey to determine the location, pole spacing and pole type of important corner poles; S2: Drive wooden stakes into each pole pit, write the pole number on the stakes, and determine the various pulling lines; S3: Pole tower assembly: assemble the cross arms and insulators on the poles on the ground and then erect the poles as a whole; S4: Connecting the conductor (1) to the connector on the pole tower: Before connecting the conductor (1), first control the discharge tip (22) to rotate by means of the rotation control mechanism (3) until the axis of the discharge tip (22) is perpendicular to the axis of the conductor (1).

Images