Spacer

Abstract

The invention provides a spacer. The spacer comprises: a spacer body; one end of the insulator is connected with the main body structure, and the insulator comprises a core rod; the adjusting assembly comprises a cross-shaped connecting part and an auxiliary connecting part, the cross-shaped connecting part comprises a first connecting part and a second connecting part which are connected, the first end of the auxiliary connecting part is connected with the main body structure, and the first end of the first connecting part is movably connected to the second end of the auxiliary connecting part in the length extension direction of the first connecting part; the second end of the first connecting part is connected with the insulator; and the shielding ring assembly comprises a mounting frame and a ring body, the mounting frame is connected with the inner peripheral wall of the ring body, and the second connecting part is connected with the mounting frame. According to the technical scheme, the spacer can solve the problems that the effect is poor and stable operation of a line is difficult to meet when inter-phase discharging is caused by the fact that the inter-phase distance is shortened in the mode of the prior art.

Description

Technical Field

[0001] The invention relates to the technical field of overhead transmission lines, and in particular to a spacer rod. Background Art

[0002] In the field of ultra-high voltage power transmission technology, the stable operation of transmission lines faces severe challenges from extreme weather and climate conditions, among which anti-icing and anti-dancing technologies have become the key to ensuring line safety. At present, the route is generally carefully planned in the early stage of design to avoid areas with high incidence of icing and dancing, or double-pendulum anti-dancing devices and integral eccentric weights are used to offset the impact of wind on the conductors. However, when encountering extremely severe climatic conditions, such as complex dancing caused by strong winds, conductor jumping caused by rapid deicing in a heavy icing environment, and uneven icing on the three-phase conductors, the phase spacing will still be shortened, resulting in phase-to-phase discharge, which is difficult to meet the needs of stable operation of the transmission line. Summary of the invention

[0003] The main purpose of the present invention is to provide a spacer rod, which can solve the problem that when the prior art is used to avoid interphase discharge caused by shortening the phase spacing, the effect is poor and it is difficult to meet the problem of stable line operation.

[0004] In order to achieve the above-mentioned purpose, the present invention provides a spacer bar, comprising: a spacer bar body, comprising a reinforcement structure and at least one main body structure, at least two wire clamps are arranged on the outer peripheral side of the main body structure, the inner peripheral wall of each main body structure forms an installation area, the reinforcement structure comprises a reinforcement body and at least two connecting protrusions, at least two connecting protrusions are arranged on the outer peripheral side of the reinforcement body along the circumferential direction of the reinforcement body, the reinforcement body is located in the installation area, and each connecting protrusion is connected to the main body structure; an insulator, one end of the insulator is connected to the main body structure, and the insulator comprises a core rod; an adjustment assembly, the adjustment assembly comprises a cross-shaped connection part and an auxiliary connection part, the cross-shaped connection part comprises a first connection part and a second connection part connected to each other, the first connection part is perpendicular to the second connection part, the length extension direction of the first connection part and the length extension direction of the auxiliary connection part are both the same as the length extension direction of the core rod, the first end of the auxiliary connection part is connected to the main body structure, along the length extension direction of the first connection part, the first end of the first connection part is movably connected to the second end of the auxiliary connection part, and the second end of the first connection part is connected to the insulator; a shielding ring assembly, comprising a mounting frame and a ring body, the mounting frame is connected to the inner peripheral wall of the ring body, and the second connection part is connected to the mounting frame.

[0005] Furthermore, the outer contour of the reinforcement body is circular, there are at least three connecting protrusions, and the angles between each two adjacent connecting protrusions are equal; and / or, the reinforcement structure is an integrated structure.

[0006] Furthermore, there are at least three wire clamps and at least three connecting protrusions, and the at least three connecting protrusions and the at least three wire clamps are alternately arranged along the circumference of the main structure; and / or, there are at least two main structures, and at least two main structures are stacked in sequence and fixedly connected.

[0007] Furthermore, the reinforcement body includes an annular frame structure and a first reinforcing rib structure arranged on the inner circumferential side of the annular frame structure, the first reinforcing rib structure includes at least three first reinforcing rib splits arranged at intervals along the circumference of the annular frame structure, one ends of at least three first reinforcing rib splits are connected, and the other ends of at least three first reinforcing rib splits are all connected to the annular frame structure and separate the area enclosed by the inner circumferential wall of the annular frame structure.

[0008] Furthermore, there are at least three connecting protrusions, the angles between each two adjacent first reinforcing rib splits are equal, and at least some of the first reinforcing rib splits correspond one-to-one to the connecting protrusions, and the central axis of the connecting protrusion is collinear with the central axis of the first reinforcing rib split corresponding to it.

[0009] Furthermore, the spacer rod also includes a connecting structure, one end of which is connected to the main structure, and the other end of which protrudes from the outer peripheral surface of the main structure.

[0010] Furthermore, the connecting structure is arranged corresponding to any one of the at least two connecting protrusions, the connecting structure is located between the main structure and the connecting protrusion corresponding to the connecting structure, and the width of the connecting structure is the same as the width of the connecting protrusion corresponding to the connecting structure; and / or the cross-section of the connecting structure is I-shaped.

[0011] Furthermore, the spacer rod also includes a sheath wrapped around the outer periphery of the insulator, and an umbrella skirt structure is arranged on the outer periphery of the sheath. The umbrella skirt structure includes a plurality of first umbrella skirts, a plurality of second umbrella skirts and a plurality of third umbrella skirts arranged at intervals along the axial direction of the core rod, the diameter of each first umbrella skirt is greater than the diameter of each second umbrella skirt, the diameter of each second umbrella skirt is greater than the diameter of each third umbrella skirt, and at least one third umbrella skirt is arranged between adjacent first umbrella skirts and second umbrella skirts.

[0012] Furthermore, the umbrella skirt structure also includes at least two reinforced umbrella skirt components arranged at intervals, and the reinforced umbrella skirt component includes a fourth umbrella skirt. The diameter of the fourth umbrella skirt is greater than the diameter of the first umbrella skirt, and the diameter of the fourth umbrella skirt ranges from 250 mm to 400 mm.

[0013] Furthermore, the reinforced umbrella skirt assembly also includes a second reinforcement rib structure and a fifth umbrella skirt, the diameter of the fifth umbrella skirt is smaller than the diameter of the fourth umbrella skirt, and along the axial direction of the core rod, the second reinforcement rib structure includes at least two second reinforcement rib splits, one end of each second reinforcement rib split is connected to the fourth umbrella skirt, and the other end of each second reinforcement rib split is connected to the fifth umbrella skirt.

[0014] Furthermore, one end of each second reinforcing rib split is connected to the middle portion of the fourth umbrella skirt, and the other end of each second reinforcing rib split is connected to the outer edge of the fifth umbrella skirt.

[0015] Furthermore, the angle between the central axis of each second reinforcing rib split and the central axis of the core rod is α, and the value range of α is 30°~60°.

[0016] Furthermore, along the axial direction of the core rod, the fourth umbrella skirt has a first surface and a second surface, the angle between the first surface and the cross section of the core rod is β, the angle between the second surface and the cross section of the core rod is γ, the value range of β is 5°~8°, the value range of γ is 2°~3°, and the second reinforcement rib structure and the fifth umbrella skirt are located on the side where the second surface is located.

[0017] By applying the technical solution of the present invention, the spacer body of the present application can enhance the mechanical strength of the spacer body by adding a reinforcing body. In addition, the reinforcing body is connected to the main structure by at least two connecting protrusions arranged on its periphery, so that the external force can be evenly dispersed, the local stress concentration can be reduced, and the tensile, bending and torsion resistance of the spacer body can be further enhanced. Through the above arrangement, the overall mechanical properties of the spacer can be significantly enhanced, so that when it is subjected to external forces such as wind and ice, it will not deform and swing to a large extent, and it can be stably supported between the conductors, and the movement of the conductors can be more effectively restricted. At the same time, an adjustment component is also provided, the adjustment component includes a cross-shaped connection part and an auxiliary connection part, the cross-shaped connection part includes a first connection part and a second connection part connected to each other, the vertical layout of the first connection part and the second connection part, and the connection with the main structure and the insulator together constitute a stable frame structure, this structural design can improve the mechanical stability of the spacer when it is subjected to wind, ice load and other external forces, reduce the relative movement between the conductors, thereby avoiding the problem of phase-to-phase discharge caused by the shortening of the spacing between the conductors, thereby meeting the stable operation of the line. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] The accompanying drawings constituting a part of the present invention are used to provide a further understanding of the present invention. The exemplary embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation of the present invention. In the accompanying drawings:

[0019] Figure 1 A schematic diagram showing the overall structure of the spacer rods in an embodiment of the present invention is shown;

[0020] Figure 2 A schematic structural diagram of a spacer rod body according to an embodiment of the present invention is shown;

[0021] Figure 3 A schematic cross-sectional view showing a connection structure of an embodiment of the present invention;

[0022] Figure 4 A schematic structural diagram of a mandrel according to an embodiment of the present invention is shown;

[0023] Figure 5 Show Figure 4 A magnified image of point A;

[0024] Figure 6 A schematic diagram showing the structure of an adjustment component of an embodiment of the present invention is shown;

[0025] Figure 7 A partial structural schematic diagram of a spacer bar according to an embodiment of the present invention is shown;

[0026] Figure 8 Shows Figure 1 The enlarged view of point B in the figure;

[0027] Fig. 9 Shows Figure 1 The enlarged view of point C in the figure;

[0028] Fig.10 A schematic structural diagram of a spacer rod body according to another embodiment of the present invention is shown.

[0029] The above drawings include the following reference numerals:

[0030] 10. Spacer rod body; 11. Reinforcement structure; 111. Reinforced main body; 1111. Annular frame structure; 1112. First reinforcing rib split; 112. Connecting convex part; 12. Main structure; 20. Wire clamp; 30. Connecting structure; 31. First connecting hole; 40. Insulator; 41. Core rod; 42. Sheath; 43. Sheath structure; 431. First sheath; 432. Second sheath; 433. Third sheath; 434. Reinforced sheath assembly; 4341. Fourth sheath; 4342. Fifth sheath; 4343. Second reinforcing rib split; 50. Adjustment assembly; 51. Cross-shaped connection part; 511. First connection part; 5111. Second connection hole; 512. Second connection part; 5121. Third connection hole; 52. Auxiliary connection part; 521. Fourth connection hole; 60. Shielding ring assembly; 61. Mounting frame; 611. Mounting split body; 6111. First connection split body; 6112. Second connection split body; 62. Ring body; 70. First equalizing ring; 80. Second equalizing ring; 90. Connector; 91. Connecting plate; 100. Connecting hardware; 101. Protrusion; 200. Bolt. DETAILED DESCRIPTION

[0031] It should be noted that, in the absence of conflict, the embodiments of the present invention and the features in the embodiments can be combined with each other. The present invention will be described in detail below with reference to the accompanying drawings and in combination with the embodiments.

[0032] See also Figures 1 to 10 As shown, the present invention provides a spacer bar, which includes: a spacer bar body 10, including a reinforcement structure 11 and at least one main structure 12, at least two wire clamps 20 are arranged on the outer peripheral side of the main structure 12, the inner peripheral wall of each main structure 12 forms an installation area, the reinforcement structure 11 includes a reinforcement body 111 and at least two connecting protrusions 112, at least two connecting protrusions 112 are arranged on the outer peripheral side of the reinforcement body 111 along the circumferential direction of the reinforcement body 111, the reinforcement body 111 is located in the installation area, and each connecting protrusion 112 is connected to the main structure 12; an insulator 40, one end of the insulator 40 is connected to the main structure 12, and the insulator 40 includes a core rod 41; an adjustment component 50, the adjustment component 50 includes a cross-shaped connection part 51 and The auxiliary connecting part 52 and the cross-shaped connecting part 51 include a first connecting part 511 and a second connecting part 512 connected to each other, the first connecting part 511 is perpendicular to the second connecting part 512, the length extension direction of the first connecting part 511 and the length extension direction of the auxiliary connecting part 52 are both the same as the length extension direction of the core rod 41, the first end of the auxiliary connecting part 52 is connected to the main structure 12, along the length extension direction of the first connecting part 511, the first end of the first connecting part 511 is movably connected to the second end of the auxiliary connecting part 52, and the second end of the first connecting part 511 is connected to the insulator 40; the shielding ring assembly 60 includes a mounting frame 61 and a ring body 62, the mounting frame 61 is connected to the inner circumferential wall of the ring body 62, and the second connecting part 512 is connected to the mounting frame 61.

[0033] In this embodiment, one end of the wire clamp 20 is connected to the main structure 12, and the other end of the wire clamp 20 is used to clamp the wire. The spacer body 10 is composed of a reinforcement structure 11 and at least one main structure 12. The reinforcement body 111 is located in the installation area surrounded by the inner wall of the main structure 12. One end of the connecting protrusion 112 is connected to the reinforcement body 111, and the other end of the connecting protrusion 112 is connected to the main structure 12. Compared with the traditional spacer, the spacer body 10 of the present application can enhance the mechanical strength of the spacer body 10 by adding the reinforcement body 111. In addition, the reinforcement body 111 is connected to the main structure 12 by at least two connecting protrusions 112 arranged on its periphery, which can evenly disperse the external force, reduce local stress concentration, and further enhance the tensile, bending and torsion resistance of the spacer body 10. Through the above-mentioned arrangement, the overall mechanical properties of the spacer can be significantly enhanced, so that when it is subjected to external forces such as wind and icing, it will not deform or swing to a large extent. It is stably supported between the conductors, which can more effectively limit the movement of the conductors, avoid the problem of phase-to-phase discharge caused by the shortening of the spacing between the conductors, and thus meet the stable operation of the line.

[0034] The first end of the auxiliary connection part 52 is connected to the main structure 12, and the first end of the first connection part 511 is movably connected to the second end of the auxiliary connection part 52. This adjustable connection method allows the spacer to adapt to different line layouts and phase spacings during installation, thereby improving its applicability and flexibility in different power transmission environments. The vertical layout of the first connection part 511 and the second connection part 512, as well as the connection with the main structure 12 and the insulator 40, together constitute a stable frame structure. This structural design can improve the mechanical stability of the spacer when subjected to wind force, ice load and other external forces, and reduce the relative movement between the conductors. The shielding ring assembly 60 generates a voltage equalization effect in the high-voltage electric field through its ring body 62, optimizes the electric field distribution, and can effectively suppress the corona discharge phenomenon generated at the adjustment assembly 50.

[0035] The spacer rods of the present application are installed between phases, which can ensure that the conductors of each phase maintain a certain distance to provide effective electrical insulation and prevent the occurrence of faults such as phase-to-phase short circuits, and can also restrict the movements of the conductors of each phase. When the conductors are subjected to external forces such as wind and icing, the relative movement of the conductors can be limited, the dancing amplitude of the conductors can be reduced, and the dancing of the conductors can be suppressed. At the same time, in the case of heavy icing, the icing load on the conductors can be dispersed to prevent the dancing of the conductors caused by uneven icing. When the ice on the conductors falls off, the conductors can be prevented from jumping due to de-icing.

[0036] It should be noted that when there are two or more main structures 12, all the main structures 12 are stacked and fixedly connected as a whole, and the wire clamp 20 is fixedly connected to all the main structures 12 after being stacked to form an integral connection.

[0037] like Figure 2 As shown, in one embodiment, there are six wire clips 20 , and the six wire clips 20 are evenly distributed on the outer peripheral side of the main structure 12 .

[0038] like Fig.10 As shown, in one embodiment, there are eight wire clips 20 , and the eight wire clips 20 are evenly distributed on the outer peripheral side of the main structure 12 .

[0039] In one embodiment, the spacer rod also includes a protective wire. To prevent the protective wire from becoming untied, the pitch of the protective wire is not less than 5 and the overall length is not less than 1500 mm. The protective wire is constructed to be wrapped around the outer circumference of the conductor, which can increase the stiffness of the conductor, reduce the vibration amplitude, avoid conductor wear, and avoid generating corona under high electric fields.

[0040] In one embodiment of the present invention, the outer contour of the reinforcing body 111 is circular, there are at least three connecting protrusions 112, and the angles between two adjacent connecting protrusions 112 are equal.

[0041] In this embodiment, there are at least three connecting protrusions 112, and the angles between each two adjacent connecting protrusions 112 are equal, that is, the multiple connecting protrusions 112 are evenly distributed on the periphery of the reinforcing body 111, which can more effectively disperse the load. Each connecting protrusion 112 can share a part of the external force, avoiding overload of a single connection point, which helps to extend the service life of the spacer rod body 10.

[0042] In one embodiment of the present invention, the reinforcement structure 11 is an integrated structure.

[0043] In this embodiment, the reinforcing structure 11 is an integrated structure, which can ensure uniform stress distribution when bearing load. Since there are no additional connecting parts (such as bolts, etc.), maintenance and inspection are also easier, reducing the maintenance needs caused by loose connecting parts. In addition, it can also reduce the assembly steps in the production process and reduce production costs.

[0044] See also Figures 1 to 10 As shown, in one embodiment of the present invention, there are at least three wire clips 20 and at least three connecting protrusions 112 , and the at least three connecting protrusions 112 and the at least three wire clips 20 are alternately arranged along the circumference of the main structure 12 .

[0045] In this embodiment, the provision of multiple connecting protrusions 112 can ensure that the external force is evenly distributed to the entire structure of the spacer body 10, avoid local overload, improve the durability and fatigue resistance of the overall structure, and extend the service life of the spacer body 10. The alternating provision of multiple wire clips 20 and multiple connecting protrusions 112 can significantly improve the torsion resistance of the spacer body 10. When the conductor is subjected to lateral or torsional external forces, this design can maintain the correct position of the conductor and enhance the structural stability.

[0046] See also Figures 1 to 10 As shown, in one embodiment of the present invention, there are at least two main structures 12, and the at least two main structures 12 are stacked in sequence and fixedly connected.

[0047] In this embodiment, by stacking multiple main structures 12 and fixedly connecting them, on the one hand, the structural strength can be enhanced so that it can withstand greater external forces, such as wind loads, ice weight, etc., without deformation or damage. On the other hand, the stacked main structures 12 can disperse stress more evenly and avoid stress concentration, thereby extending the service life of the spacer rod body.

[0048] See also Figures 1 to 10As shown, in one embodiment of the present invention, the reinforcing body 111 includes an annular frame structure 1111 and a first reinforcing rib structure arranged on the inner circumferential side of the annular frame structure 1111, the first reinforcing rib structure includes at least three first reinforcing rib splits 1112 arranged at intervals along the circumference of the annular frame structure 1111, one ends of at least three first reinforcing rib splits 1112 are connected, and the other ends of at least three first reinforcing rib splits 1112 are all connected to the annular frame structure 1111 and separate the area enclosed by the inner circumferential wall of the annular frame structure 1111.

[0049] In this embodiment, at least three first reinforcing rib segments 1112 are arranged at intervals along the circumferential direction. On the one hand, they can form a stable triangle or a more complex polygonal structure, significantly enhancing the structural strength of the main structure 12 and improving the bending and torsional resistance of the main structure 12. On the other hand, they can make full use of the area enclosed by the inner wall of the annular frame structure 1111.

[0050] In addition, the area enclosed by the inner wall surface of the annular frame structure 1111 is a hollow area, which can reduce the weight of the product.

[0051] See also Figures 1 to 10 As shown, in one embodiment of the present invention, there are at least three connecting protrusions 112, the angles between each adjacent two first reinforcing rib splits 1112 are equal, and at least some of the first reinforcing rib splits 1112 correspond one-to-one to the connecting protrusions 112, and the central axis of the connecting protrusion 112 is collinear with the central axis of the first reinforcing rib split 1112 arranged corresponding thereto.

[0052] In this embodiment, the central axis of the connecting protrusion 112 and the central axis of the corresponding first reinforcing rib split 1112 are colinear, so that the external force can be transmitted along the central axis of the structure, thereby improving the torsional resistance and tensile strength of the spacer rod body 10. The angles between two adjacent first reinforcing rib splits 1112 are equal, so that the external force is more evenly distributed on the spacer rod body, avoiding local stress concentration, and thereby extending the service life of the spacer rod body.

[0053] See also Figures 1 to 10 As shown, in one embodiment of the present invention, the spacer rod further includes a connecting structure 30 , one end of the connecting structure 30 is connected to the main structure 12 , and the other end of the connecting structure 30 protrudes from the outer circumference of the main structure 12 .

[0054] In this embodiment, the other end of the connection structure 30 is used to connect with other structures of the spacer bar, and the addition of the connection structure 30 can further improve the connection stability between the main structure 12 and other structures. In addition, the protruding design of the connection structure 30 makes on-site installation and maintenance easier, and the protruding connection structure 30 is also easier to identify and operate.

[0055] See also Figures 1 to 10 As shown, in one embodiment of the present invention, the connecting structure 30 is arranged corresponding to any one of the at least two connecting protrusions 112, and the connecting structure 30 is located between the main structure 12 and the connecting protrusion 112 corresponding to the connecting structure 30, and the width of the connecting structure 30 is the same as the width of the connecting protrusion 112 corresponding to the connecting structure 30.

[0056] In this embodiment, the width of the connecting structure 30 and the corresponding connecting protrusion 112 are the same, which can further enhance the connection stability between the spacer rod body and the structure to be connected 30, improve the structural stability and deformation resistance of the spacer rod body, enable the spacer rod to better resist external forces, maintain a stable spacing between the conductors, and avoid the problem of phase-to-phase discharge caused by the shortening of the spacing between the conductors.

[0057] See also Figures 1 to 10 As shown, in one embodiment of the present invention, two first connection holes 31 are provided at both ends of the connection structure 30, and the two first connection holes 31 at one end of the connection structure 30 close to the spacer rod body are arranged along the length direction perpendicular to the core rod 41, and the two first connection holes 31 at the other end of the connection structure 30 away from the spacer rod body are arranged along the length direction of the core rod 41. During installation, the end of the connection structure 30 close to the spacer rod body can be connected to the main structure 12 by passing a bolt through the two first connection holes 31, and the end of the connection structure 30 away from the spacer rod body can be connected to the first connection part 511 by passing a bolt through the two first connection holes 31.

[0058] See also Figures 1 to 3 As shown, in one embodiment of the present invention, the cross section of the connecting structure 30 is I-shaped.

[0059] Through the above arrangement, the connection structure 30 can withstand a larger torque and the structural strength of the connection structure 30 can be increased.

[0060] See also Figures 1 to 10 As shown, in one embodiment of the present invention, the spacer rod also includes a sheath 42 wrapped around the outer periphery of the insulator 40, and an umbrella skirt structure is arranged on the outer periphery of the sheath 42. The umbrella skirt structure includes a plurality of first umbrella skirts 431, a plurality of second umbrella skirts 432 and a plurality of third umbrella skirts 433 arranged at intervals along the axial direction of the core rod 41. The diameter of each first umbrella skirt 431 is greater than the diameter of each second umbrella skirt 432, the diameter of each second umbrella skirt 432 is greater than the diameter of each third umbrella skirt 433, and at least one third umbrella skirt 433 is arranged between adjacent first umbrella skirts 431 and second umbrella skirts 432.

[0061] In this embodiment, umbrella skirts of different diameters can increase the resistance on the arc path and effectively prevent corona discharge and flashover, especially under severe weather conditions, such as high humidity and heavy ice environment. The diameter of the first umbrella skirt 431 is larger than that of the second umbrella skirt 432, and the diameter of the second umbrella skirt 432 is larger than that of the third umbrella skirt 433. The large-diameter umbrella skirt can capture more air and help blow away dust and dirt on the surface, while the small-diameter umbrella skirt helps to keep the flow of rainwater, reduce the accumulation of dirt, and improve the self-cleaning ability of the insulator 40. In addition, the unequal-diameter design of the umbrella skirt structure helps to reduce wind resistance and reduce the vibration and dancing of the spacer rod under strong wind conditions. By arranging at least one third umbrella skirt 433 between adjacent first umbrella skirts 431 and second umbrella skirts 432, the complexity of the structure can be increased, which can increase the electrical insulation performance.

[0062] See also Figures 1 to 10 As shown, in one embodiment of the present invention, the umbrella skirt structure also includes at least two spaced-apart reinforced umbrella skirt components 434, the reinforced umbrella skirt components 434 include a fourth umbrella skirt 4341, the diameter of the fourth umbrella skirt 4341 is greater than the diameter of the first umbrella skirt 431, and the diameter of the fourth umbrella skirt 4341 ranges from 250 mm to 400 mm.

[0063] In this embodiment, the diameter of the fourth shed 4341 is greater than the diameter of the first shed 431, which can further increase the electrical creepage distance. The longer creepage path can effectively prevent corona discharge and flashover under high voltage and severe weather conditions (such as high humidity and ice), thereby improving the safety and stability of the transmission line. In addition, under heavy ice conditions, the fourth shed 4341 can carry more ice layers, avoid severe vibration or jumping caused by ice shedding, and improve the safety and reliability of the insulator 40 under extreme weather conditions.

[0064] See also Figures 1 to 10 As shown, in one embodiment of the present invention, the reinforced umbrella skirt assembly 434 also includes a second reinforcing rib structure and a fifth umbrella skirt 4342, the diameter of the fifth umbrella skirt 4342 is smaller than the diameter of the fourth umbrella skirt 4341, and along the axial direction of the core rod 41, the second reinforcing rib structure includes at least two second reinforcing rib splits 4343, one end of each second reinforcing rib split 4343 is connected to the fourth umbrella skirt 4341, and the other end of each second reinforcing rib split 4343 is connected to the fifth umbrella skirt 4342.

[0065] In this embodiment, the second reinforcing rib split 4343 can not only enhance the structural strength of the shed structure, but also disperse and bear the external force acting on the fourth shed 4341. Especially under heavy icing or strong wind conditions, this dispersion can prevent the fourth shed 4341 from deforming. Under heavy icing conditions, the second reinforcing rib structure can further disperse the ice load and reduce the direct impact on the insulator 40 caused by uneven ice distribution. The second reinforcing rib split 4343 can connect the fourth shed 4341 and the fifth shed 4342 to form a stable structure, thereby preventing the insulator 40 from vibrating violently when the ice layer falls off, and improving the safety and reliability under extreme weather conditions.

[0066] In one embodiment, the fourth umbrella skirt 4341, the fifth umbrella skirt 4342, and at least two second reinforcing rib splits 4343 connected between the fourth umbrella skirt 4341 and the fifth umbrella skirt 4342 are an integrated structure.

[0067] In one embodiment, there are four second reinforcing rib segments 4343 , the thickness of the second reinforcing rib segments 4343 is not less than 5 mm, and the four second reinforcing rib segments 4343 are evenly distributed along the circumference of the fourth umbrella skirt 4341 .

[0068] In one embodiment, the connection between the second reinforcing rib split 4343 and the fourth umbrella skirt 4341, and the connection between the second reinforcing rib split 4343 and the fifth umbrella skirt 4342 both have a chamfer of not less than R4mm to avoid stress concentration causing the fourth umbrella skirt 4341 and the fifth umbrella skirt 4342 to be torn and fallen off.

[0069] In one embodiment, a reinforcing shed assembly 434 is provided every 600 mm to 1000 mm along the axial direction of the core rod 41 to avoid ice flashover.

[0070] In one embodiment, the outer edges of the fourth umbrella skirt 4341 and the fifth umbrella skirt 4342 are circular, and the diameter ranges from 1.5 mm to 3 mm. The circular edges can reduce the concentration of the electric field, thereby reducing the risk of corona discharge and flashover, and also help rainwater and wind to flow or blow through the surface of the insulator 40 more smoothly, thereby promoting the removal of surface dirt.

[0071] See also Figures 1 to 10 As shown, in one embodiment of the present invention, one end of each second reinforcing rib split 4343 is connected to the middle of the fourth umbrella skirt 4341, and the other end of each second reinforcing rib split 4343 is connected to the outer edge of the fifth umbrella skirt 4342.

[0072] In this embodiment, the provision of the second reinforcing rib split 4343 can enhance the structural stability of the reinforced umbrella skirt assembly 434 and reduce the probability of deformation and damage of the fourth umbrella skirt 4341 and the fifth umbrella skirt 4342. One end of the second reinforcing rib split 4343 is connected to the middle part of the fourth umbrella skirt 4341, and the other end of the second reinforcing rib split 4343 is connected to the outer edge of the fifth umbrella skirt 4342, which can not only evenly distribute external force and improve mechanical strength, but also improve the durability and fatigue resistance of the reinforced umbrella skirt assembly 434, extend the service life of the insulator 40, and reduce maintenance and replacement costs.

[0073] In one embodiment of the present invention, the angle between the central axis of each second reinforcing rib segment 4343 and the central axis of the core rod 41 is α, and the value range of α is 30°~60°.

[0074] Through the above arrangement, the external force can be more effectively converted from radial to axial direction, thereby optimizing the structural stability of the reinforced shed assembly 434, so that the reinforced shed assembly 434 can better withstand and disperse the forces such as wind force and ice load, and reduce the lateral shaking of the reinforced shed structure 43. The second reinforcing rib split 4343 can more effectively resist torque through oblique support.

[0075] See also Figures 1 to 10 As shown, in one embodiment of the present invention, along the axial direction of the core rod 41, the fourth umbrella skirt 4341 has a first surface and a second surface, the angle between the first surface and the cross section of the core rod 41 is β, the angle between the second surface and the cross section of the core rod 41 is γ, the value range of β is 5°~8°, the value range of γ is 2°~3°, and the second reinforcing rib structure and the fifth umbrella skirt 4342 are located on the side where the second surface is located.

[0076] Through the above-mentioned arrangement, it is possible to increase the propagation path length of the arc on the surface of the insulator 40 and prevent corona discharge and flashover, and also to improve the self-cleaning ability of the insulator 40, allowing rainwater to flow more smoothly on the surface of the fifth umbrella skirt 4342, and also to help clean the surface dirt, reduce the accumulation of dust, keep the surface clean, and at the same time keep the fourth umbrella skirt 4341 as dry as possible.

[0077] See also Figures 1 to 10As shown, in one embodiment of the present invention, the spacer bar also includes a plurality of bolts 200, there are two auxiliary connection parts 52, the two auxiliary connection parts 52 are stacked, the first connection part 511 is located between the two auxiliary connection parts 52, a plurality of second connection holes 5111 are provided on the first connection part 511, a plurality of third connection holes 5121 are provided on the second connection part 512, a plurality of fourth connection holes 521 are provided on the auxiliary connection part 52, the fourth connection holes 521 on the two auxiliary connection parts 52 are arranged one by one, at least one bolt 200 penetrates the fourth connection holes 521 corresponding to the two auxiliary connection parts 52 in sequence to connect one end of the two auxiliary connection parts 52, the plurality of second connection holes 5111 are arranged one by one with at least part of the fourth connection holes 521 on the two auxiliary connection parts 52, at least one bolt 200 penetrates the fourth connection holes 521 on the two auxiliary connection parts 52 and the second connection holes 5111 on the first connection part 511 located between the two auxiliary connection parts 52 to connect the cross-shaped connection part 51 with the auxiliary connection part 52 together.

[0078] See also Figures 1 to 10 As shown, in one embodiment of the present invention, the spacer bar further includes a plurality of bolts 200, and the mounting frame 61 includes four mounting sub-bodies 611, wherein two mounting sub-bodies 611 are arranged on the first side of the ring body 62, and the other two mounting sub-bodies 611 are arranged on the second side of the ring body 62, and the first side of the ring body 62 is arranged opposite to the second side of the ring body 62. The mounting sub-bodies 611 include a first connecting sub-bodies 6111 and a second connecting sub-bodies 6112, one end of the first connecting sub-bodies 6111 is connected to the ring body 62, and the other end of the first connecting sub-bodies 6111 is connected to the second connecting sub-bodies 6112, and the two second connecting sub-bodies 6112 located on the same side of the ring body 62 are arranged correspondingly and a containing space is formed therebetween, the first end of the second connecting portion 512 is located in one of the containing spaces, and the second end of the second connecting portion 512 is located in the other containing space, and at least two fifth connecting holes are arranged on the second connecting sub-bodies 6112, and the fifth connecting holes on the two second connecting sub-bodies 6112 located on the same side of the ring body 62 are arranged one by one correspondingly, and the second connecting portion 51 At least two third connection holes 5121 are arranged on the first end of the second connection portion 512, the third connection hole 5121 arranged on the first end of the second connection portion 512 is arranged in one-to-one correspondence with the fifth connection hole arranged on the second connection split body 6112 on the side where the first end of the second connection portion 512 is located, the third connection hole 5121 arranged on the second end of the second connection portion 512 is arranged in one-to-one correspondence with the fifth connection hole arranged on the second connection split body 6112 on the side where the second end of the second connection portion 512 is located, at least one bolt 200 passes through the fifth connection hole on the second connection split body 6112 located on the first side of the ring body 62 and the third connection hole 5121 on the second connection portion 512, so as to connect the second connection portion 512 with the mounting frame 61.

[0079] See also Figures 1 to 10 As shown, in one embodiment of the present invention, the spacer bar further includes at least one first grading ring 70 and at least one second grading ring 80, and one insulator 40 is correspondingly provided with a first grading ring 70 and a second grading ring 80, the first grading ring 70 is arranged at one end of the insulator 40 close to the spacer bar body 10, and the second grading ring 80 is located at one end of the insulator 40 away from the spacer bar body 10, wherein the first grading ring 70 includes a large ring and a small ring, and the ring diameter of the large ring ranges from 900 mm to 1000 mm, forming a large ring The tube diameter ranges from 80mm to 120mm, the ring diameter of the small ring ranges from 160mm to 250mm, and the tube diameter ranges from 25mm to 35mm to form the small ring, so as to reduce the electric field strength at the end of the insulator 40 and avoid corona discharge. The ring diameter of the second equalizing ring 80 ranges from 440mm to 560mm, and the tube diameter ranges from 60mm to 80mm. The first equalizing ring 70 and the second equalizing ring 80 both adopt the equalizing ring of the prior art, and the specific structure will not be repeated here.

[0080] In one embodiment, the spacer rod also includes a connecting fitting 100, one end of the connecting fitting 100 is fixedly connected to one end of the core rod 41 of the insulator 40 close to the spacer rod body 10, and the other end of the connecting fitting 100 is connected to the first connecting portion 511. A protrusion 101 is provided on the connecting fitting 100, and a groove is provided at the corresponding position of the first equalizing ring 70. The protrusion 101 is clamped in the groove to prevent the first equalizing ring 70 from slipping, thereby ensuring the shielding effect of the first equalizing ring 70.

[0081] See also Figures 1 to 10 As shown, in one embodiment of the present invention, the spacer rod also includes a connector 90 and a connecting plate 91, the connector 90 is a U-shaped ring, the connecting hardware 100 includes an annular connecting portion, the U-shaped ring is hung on the annular connecting portion, and the open end of the U-shaped ring is fixedly connected to the connecting plate 91 by bolts. Through the above arrangement, it can better adapt to environmental changes and stress changes, and is suitable for power transmission lines in complex terrain, harsh climate or high stress conditions. When the transmission line dances, the spacer rod will have complex stress conditions, including tension, pressure and torsion, and the product is relatively long. Due to the effect of inertia, the instantaneous force is very large, and the connecting hardware 100 is easily deformed by stress. Therefore, the above connection method can improve the stress stability.

[0082] From the above description, it can be seen that the above embodiments of the present invention achieve the following technical effects: the spacer body of the present application can enhance the mechanical strength of the spacer body by adding a reinforcing body. In addition, the reinforcing body is connected to the main structure by at least two connecting protrusions arranged on its periphery, so that the external force can be evenly dispersed, the local stress concentration can be reduced, and the tensile, bending and torsion resistance of the spacer body can be further enhanced. Through the above arrangement, the overall mechanical properties of the spacer can be significantly enhanced, so that when it is subjected to external forces such as wind and ice, it will not deform and swing to a large extent, and it can be stably supported between the conductors, and the movement of the conductors can be more effectively restricted. At the same time, an adjustment component is also provided, the adjustment component includes a cross-shaped connection part and an auxiliary connection part, the cross-shaped connection part includes a first connection part and a second connection part connected to each other, the vertical layout of the first connection part and the second connection part, and the connection with the main structure and the insulator together constitute a stable frame structure, this structural design can improve the mechanical stability of the spacer when it is subjected to wind, ice load and other external forces, reduce the relative movement between the conductors, thereby avoiding the problem of phase-to-phase discharge caused by the shortening of the spacing between the conductors, thereby meeting the stable operation of the line.

[0083] Obviously, the above-described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work should fall within the scope of protection of the present invention.

[0084] It should be noted that the terms used herein are only for describing specific embodiments and are not intended to limit the exemplary embodiments according to the present application. As used herein, unless the context clearly indicates otherwise, the singular form is also intended to include the plural form. In addition, it should be understood that when the terms "comprise" and / or "include" are used in this specification, it indicates the presence of features, steps, operations, devices, components and / or combinations thereof.

[0085] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. For those skilled in the art, the present invention may have various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A spacer bar, characterized in that: include: A spacer bar body (10), comprising a reinforcement structure (11) and at least one main body structure (12), at least two wire clamps (20) being arranged on the outer peripheral side of the main body structure (12), the inner peripheral wall of each main body structure (12) forming a mounting area, the reinforcement structure (11) comprising a reinforcement body (111) and at least two connecting protrusions (112), at least two connecting protrusions (112) being arranged at intervals along the circumference of the reinforcement body (111) on the outer peripheral side of the reinforcement body (111), the reinforcement body (111) being located in the mounting area, and each connecting protrusion (112) being connected to the main body structure (12); an insulator (40), one end of the insulator (40) being connected to the main structure (12), and the insulator (40) comprising a core rod (41); An adjustment assembly (50), the adjustment assembly (50) comprising a cross-shaped connection portion (51) and an auxiliary connection portion (52), the cross-shaped connection portion (51) comprising a first connection portion (511) and a second connection portion (512) connected to each other, the first connection portion (511) being perpendicular to the second connection portion (512), the length extension direction of the first connection portion (511) and the length extension direction of the auxiliary connection portion (52) being the same as the length extension direction of the core rod (41), the first end of the auxiliary connection portion (52) being connected to the main structure (12), the first end of the first connection portion (511) being movably connected to the second end of the auxiliary connection portion (52) along the length extension direction of the first connection portion (511), and the second end of the first connection portion (511) being connected to the insulator (40); The shielding ring assembly (60) comprises a mounting frame (61) and a ring body (62), wherein the mounting frame (61) is connected to the inner peripheral wall of the ring body (62), and the second connecting portion (512) is connected to the mounting frame (61).

2. The spacer rod according to claim 1, characterized in that: The outer contour of the reinforcement body (111) is circular, there are at least three connecting protrusions (112), and the angles between two adjacent connecting protrusions (112) are equal; and / or the reinforcement structure (11) is an integrated structure.

3. The spacer rod according to claim 1, characterized in that: There are at least three of each of the wire clamps (20) and the connecting protrusions (112), and the at least three connecting protrusions (112) and the at least three wire clamps (20) are alternately arranged along the circumference of the main structure (12); and / or there are at least two main structures (12), and at least two main structures (12) are stacked in sequence and fixedly connected.

4. The spacer according to any one of claims 1 to 3, characterized in that The reinforcing body (111) comprises an annular frame structure (1111) and a first reinforcing rib structure arranged on the inner circumferential side of the annular frame structure (1111), the first reinforcing rib structure comprising at least three first reinforcing rib segments (1112) arranged at intervals along the circumference of the annular frame structure (1111), one end of at least three of the first reinforcing rib segments (1112) being connected, and the other ends of at least three of the first reinforcing rib segments (1112) being connected to the annular frame structure (1111) and separating the area enclosed by the inner circumferential wall of the annular frame structure (1111).

5. The spacer rod according to claim 4, characterized in that: There are at least three connecting protrusions (112), the angles between two adjacent first reinforcing rib segments (1112) are equal, and at least some of the first reinforcing rib segments (1112) correspond one-to-one with the connecting protrusions (112), and the central axis of the connecting protrusion (112) and the central axis of the first reinforcing rib segment (1112) corresponding thereto are collinear.

6. The spacer according to any one of claims 1 to 3, characterized in that: The spacer bar further comprises a connection structure (30), one end of the connection structure (30) being connected to the main structure (12), and the other end of the connection structure (30) protruding from the outer peripheral surface of the main structure (12).

7. The spacer rod according to claim 6, characterized in that: The connecting structure (30) is arranged corresponding to any one of the at least two connecting protrusions (112), the connecting structure (30) is located between the main structure (12) and the connecting protrusion (112) corresponding to the connecting structure (30), and the width of the connecting structure (30) is the same as the width of the connecting protrusion (112) corresponding to the connecting structure (30); and / or the cross-section of the connecting structure (30) is an I-shape.

8. The spacer bar according to any one of claims 1 to 3, characterized in that: The spacer rod further comprises a sheath (42) covering the outer periphery of the insulator (40); an shed structure (43) is arranged on the outer periphery of the sheath (42); the shed structure (43) comprises a plurality of first sheds (431), a plurality of second sheds (432) and a plurality of third sheds (433) arranged at intervals along the axial direction of the core rod (41); the diameter of each of the first sheds (431) is greater than the diameter of each of the second sheds (432); the diameter of each of the second sheds (432) is greater than the diameter of each of the third sheds (433); and at least one of the third sheds (433) is arranged between adjacent first sheds (431) and second sheds (432).

9. The spacer rod according to claim 8, characterized in that: The shed structure (43) further comprises at least two spaced-apart reinforced shed assemblies (434), wherein the reinforced shed assembly (434) comprises a fourth shed (4341), wherein the diameter of the fourth shed (4341) is greater than the diameter of the first shed (431), and the diameter of the fourth shed (4341) is in the range of 250 mm to 400 mm.

10. The spacer rod according to claim 9, characterized in that: The reinforced umbrella skirt assembly (434) further comprises a second reinforcing rib structure and a fifth umbrella skirt (4342), wherein the diameter of the fifth umbrella skirt (4342) is smaller than the diameter of the fourth umbrella skirt (4341), and along the axial direction of the core rod (41), the second reinforcing rib structure comprises at least two second reinforcing rib splits (4343), one end of each of the second reinforcing rib splits (4343) is connected to the fourth umbrella skirt (4341), and the other end of each of the second reinforcing rib splits (4343) is connected to the fifth umbrella skirt (4342).

11. The spacer rod according to claim 10, characterized in that: One end of each of the second reinforcing rib splits (4343) is connected to the middle portion of the fourth umbrella skirt (4341), and the other end of each of the second reinforcing rib splits (4343) is connected to the outer edge of the fifth umbrella skirt (4342).

12. The spacer rod according to claim 10, characterized in that: The angle between the central axis of each of the second reinforcing rib segments (4343) and the central axis of the core rod (41) is α, and the value range of α is 30°~60°.

13. The spacer rod according to claim 10, characterized in that: Along the axial direction of the core rod (41), the fourth shed (4341) has a first surface and a second surface, the angle between the first surface and the cross section of the core rod (41) is β, the angle between the second surface and the cross section of the core rod (41) is γ, the value range of β is 5°~8°, the value range of γ is 2°~3°, and the second reinforcing rib structure and the fifth shed (4342) are located on the side where the second surface is located.

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