Bird damage prevention type composite phase-to-phase spacer

Abstract

The utility model relates to the technical field of power transmission lines of power systems, and provides a bird damage prevention type composite phase-to-phase spacer, which comprises a core rod and wire clamps, the wire clamps are arranged at the two ends of the core rod, and the axes of the wire clamps are perpendicular to the length direction of the core rod; the wire clamp is characterized by further comprising a positioning seat and a positioning shaft, and the wire clamp is arranged on the positioning seat; the positioning shaft is arranged on the positioning seat, the axial direction of the positioning shaft is the same as that of the wire clamp, and the positioning seat is used for driving the wire clamp to rotate around the circumferential direction of the positioning shaft. According to the technical scheme, the problems that in the prior art, rigid connection between the wire clamp and the wire of the phase-to-phase spacer easily causes electromechanical stress failure, the safety performance is relatively low, the industry and resident life are harmed after a fault occurs, and safe operation of a power transmission line is not facilitated are solved.

Description

Technical Field

[0001] The utility model relates to the technical field of power transmission lines of electric power systems, and in particular to a bird-damage-proof composite interphase spacer. Background Art

[0002] The interphase spacer consists of an interphase composite insulator and matching hardware. It is installed between the phase conductors and is used to control the spacing between the two phase conductors. The composite interphase spacer is used in compact high-voltage transmission lines. It can effectively control the phase distance to maintain line safety, reduce the space for power transmission, and reduce the investment in line construction. The composite interphase spacer has the advantages of composite insulators. Since the spacer is light in weight and has a rigid structure as a whole, it is installed between the two-phase conductors of the line. It will not burden the line tower, and its rigid mechanical support avoids the flashover of the two-phase conductors when dancing, thereby fundamentally solving the hazards caused by the line dancing. However, the rigid connection between the wire clamp and the conductor of the existing interphase spacer is prone to electromechanical stress failure, and the safety performance is relatively low. After a failure, it will cause harm to industry and residents' lives, which is not conducive to the safe operation of the transmission line. Utility Model Content

[0003] The utility model proposes a bird-damage-proof composite phase-to-phase spacer, which solves the problem in the related technology that the rigid connection between the wire clamp and the conductor of the phase-to-phase spacer easily leads to electromechanical stress failure, has relatively low safety performance, causes harm to industry and residents' lives after a failure, and is not conducive to the safe operation of the transmission line.

[0004] The technical solution of the utility model is as follows: a bird-proof composite interphase spacer, comprising:

[0005] Mandrel,

[0006] A wire clamp is provided at both ends of the mandrel, and the axis of the wire clamp is arranged perpendicular to the length direction of the mandrel;

[0007] The key point is: it also includes,

[0008] A positioning seat, on which the wire clamp is arranged;

[0009] A positioning shaft, wherein the positioning shaft is arranged on the positioning seat, the axial direction of the positioning shaft is the same as the axial direction of the wire clamp, and the positioning seat is used to drive the wire clamp to rotate around the circumferential direction of the positioning shaft.

[0010] It also includes a length adjustment plate, which is arranged between the end of the mandrel and the positioning seat, the length adjustment plate is rotatably connected to the positioning shaft, and the length adjustment plate is provided with a receiving groove for passing through the positioning seat.

[0011] Also includes,

[0012] Sheds, a group of which is arranged on the mandrel, and all of which are arranged along the length direction of the mandrel;

[0013] The bird-proof spike is arranged on the core rod, the bird-proof spike and the shed are arranged alternately, and one end of the bird-proof spike away from the core rod protrudes from the periphery of the shed.

[0014] The bird-proof spikes include:

[0015] A positioning sleeve, the positioning sleeve being arranged on the periphery of the mandrel;

[0016] The spike portions are all arranged evenly along the circumferential direction on the periphery of the positioning sleeve, and one end of the spike portion away from the core rod protrudes from the periphery of the umbrella skirt.

[0017] It also includes a pressure equalizing ring, which is arranged at the end of the core rod.

[0018] The wire clamp comprises:

[0019] An outer arc plate, the outer arc plate is arranged on the positioning seat, and the axis of the outer arc plate is arranged perpendicular to the length direction of the mandrel;

[0020] An inner arc plate, wherein the inner arc plate is coaxially arranged with the outer arc plate,

[0021] A sealing block, the sealing block is arranged between the end of the inner arc plate and the end of the outer arc plate;

[0022] An intermediate circular arc plate, wherein the intermediate circular arc plate is slidably disposed between the inner circular arc plate and the outer circular arc plate, and a through hole for passing through the intermediate circular arc plate is provided on one of the sealing blocks;

[0023] An anti-slip block, wherein the anti-slip block is located between the inner arc plate and the outer arc plate, the anti-slip block is arranged at the inner end of the middle arc plate, the outer end of the middle arc plate is located outside the inner arc plate and the outer arc plate, and the anti-slip block is used to overlap with the sealing block to prevent the middle arc plate from slipping off between the inner arc plate and the outer arc plate.

[0024] The sealing block and the inner arc plate, and the sealing block and the outer arc plate are all detachably connected.

[0025] It also includes locking bolts, and the sealing block and the inner arc plate, and the sealing block and the outer arc plate are connected by means of the locking bolts. Grooves are provided on the inner wall of the inner arc plate and the outer wall of the outer arc plate, and the nuts of the locking bolts are located in the grooves.

[0026] The locking bolt passes through the through hole on the sealing block and contacts or separates from the middle arc plate.

[0027] It also includes a connecting plate, which is arranged on the outer wall of the outer end of the middle arc plate, and is used to form a detachable connection with the positioning seat.

[0028] The working principle and beneficial effects of the utility model are as follows: the wire clamp is set on the positioning seat; the positioning shaft is located between the wire clamp and the core rod, the axial direction of the positioning shaft is the same as the axial direction of the wire clamp, and the positioning seat is rotatably set at one end of the core rod with the help of the positioning shaft. Through the cooperation of the positioning shaft and the positioning seat, the wire clamp can rotate 360° around the positioning shaft. When the wire swings, the wire clamp swings with the wire, which can avoid hard pulling between the wire clamp and the wire, effectively reduce the probability of electromechanical stress failure, improve safety performance, reduce the probability of harm to industry and residents' lives, and is conducive to the safe operation of power transmission lines. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] The preferred implementation modes will be described below in a clear and understandable manner with reference to the accompanying drawings to further illustrate the above-mentioned characteristics, technical features, advantages and implementation methods of the present utility model.

[0030] Figure 1 It is the front view of the utility model.

[0031] Figure 2 It is a top view of the connection between the center line clamp and the length adjustment plate of the utility model.

[0032] Figure 3 It is a side view of the bird-proof spike in the utility model.

[0033] Figure 4 It is a schematic diagram of the connection structure when the center line clamp and the positioning seat of the utility model are in the first state.

[0034] Figure 5 for Figure 4 Schematic diagram of the connection structure between the middle sealing block and the outer arc plate and the inner arc plate.

[0035] Figure 6 It is a schematic diagram of the connection structure when the center line clamp and the positioning seat of the utility model are in the second state.

[0036] In the figure: 1, core rod, 2, wire clamp, 2-1, outer arc plate, 2-2, inner arc plate, 2-3, sealing block, 2-4, middle arc plate, 2-5, anti-drop block, 2-6, through hole, 3, positioning seat, 4, positioning shaft, 5, length adjustment plate, 6, receiving groove, 7, umbrella skirt, 8, anti-bird thorn, 8-1, positioning sleeve, 8-2, spike part, 9, equalizing ring, 10, locking bolt, 11, sink groove, 12, connecting plate, 13, wire. DETAILED DESCRIPTION

[0037] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the specific implementation methods of the utility model will be described below with reference to the accompanying drawings. Obviously, the accompanying drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings and other implementation methods can be obtained based on these drawings without creative work.

[0038] In order to simplify the drawings, only the parts related to the utility model are schematically shown in each figure, and they do not represent the actual structure of the product. In addition, in order to simplify the drawings and facilitate understanding, in some figures, only one of the parts with the same structure or function is schematically shown, or only one of them is marked. In this article, "one" not only means "only one", but also means "more than one", and "several" includes "two" and "more than two".

[0039] In this article, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in this utility model can be understood according to specific circumstances.

[0040] In addition, in the description of the present application, the terms "first", "second", etc. are only used to distinguish the description and cannot be understood as indicating or implying relative importance.

[0041] Example 1, reference Figure 1 , which is the first embodiment of the utility model, proposes a bird-proof composite interphase spacer, including a core rod 1 and a wire clamp 2. There are wire clamps 2 at both ends of the core rod 1, and the axis of the wire clamp 2 is perpendicular to the length direction of the core rod 1; it also includes a positioning seat 3 and a positioning shaft 4, and the wire clamp 2 is arranged on the positioning seat 3; the positioning shaft 4 is arranged on the positioning seat 3, and the axial direction of the positioning shaft 4 is the same as the axial direction of the wire clamp 2. The positioning seat 3 is used to drive the wire clamp 2 to rotate around the circumferential direction of the positioning shaft 4.

[0042] Furthermore, it also includes a length adjustment plate 5, which is arranged between the end of the mandrel 1 and the positioning seat 3, and the length adjustment plate 5 is rotatably connected to the positioning shaft 4. The length adjustment plate 5 is provided with a receiving groove 6 for passing through the positioning seat 3. Figure 1 and Figure 2As shown, a receiving groove 6 is provided at one end of the length adjustment plate 5 away from the core rod 1, and the positioning axis 4 is located at the receiving groove 6, so that the positioning seat 3 can rotate arbitrarily around the positioning axis 4 within a range of 360°. By changing the length of the length adjustment plate 5, a certain range of adjustment can be performed according to the phase-to-phase distance of different transmission lines to better meet the use requirements.

[0043] Furthermore, it also includes sheds 7 and bird-proof spikes 8. A group of sheds 7 are arranged on the mandrel 1, and all sheds 7 are arranged along the length direction of the mandrel 1. The bird-proof spikes 8 are arranged on the mandrel 1, and the bird-proof spikes 8 and sheds 7 are arranged alternately. The end of the bird-proof spike 8 away from the mandrel 1 protrudes outside the sheds 7. Figure 1 As shown, a bird-proof spike 8 is provided between two adjacent umbrella skirts 7. The bird-proof spike 8 can prevent the spacer from being perched and pecked by birds, thereby extending the service life of the spacer and reducing the probability of circuit failure.

[0044] Furthermore, the bird-proof spike 8 includes a positioning sleeve 8-1 and a spike portion 8-2. The positioning sleeve 8-1 is arranged on the periphery of the core rod 1. All the spike portions 8-2 are evenly arranged along the circumferential direction on the periphery of the positioning sleeve 8-1. One end of the spike portion 8-2 away from the core rod 1 protrudes on the periphery of the shed 7. Figure 1 and Figure 3 As shown, four spikes 8-2 are arranged in a cross shape on the periphery of the positioning sleeve 8-1, which has a simple structure and can effectively prevent the spacer rod from being perched and pecked by birds.

[0045] Furthermore, a voltage equalizing ring 9 is included, which is arranged at the end of the core rod 1. The voltage equalizing ring 9 is used to prevent side lightning strikes, and is suitable for AC voltage. It can evenly distribute high voltage around the object to ensure that there is no potential difference between various parts of the ring, thereby achieving a voltage equalization effect.

[0046] In this embodiment, the length direction of the core rod 1 is set along the left-right direction, the axes of the wire clamp 2 and the positioning shaft 4 are both set along the front-back direction, the wire clamp 2 is set on the positioning seat 3, and the positioning seat 3 is rotatably set at the end of the length adjustment plate 5 through the positioning shaft 4. The end of the length adjustment plate 5 away from the core rod 1 is provided with a receiving groove 6, and the positioning shaft 4 is located at the receiving groove 6, so that the positioning seat 3 can rotate arbitrarily within a range of 360° around the positioning shaft 4. When the conductor 13 swings, the wire clamp 2 swings with the conductor 13, which can avoid hard pulling between the wire clamp 2 and the conductor 13, effectively reduce the probability of electromechanical stress failure, improve safety performance, reduce the probability of harm to industry and residents' lives, and is conducive to the safe operation of the transmission line.

[0047] Example 2, reference Figure 4 , Figure 5 and Figure 6, which is the second embodiment of the utility model, which is different from the first embodiment in that: the wire clamp 2 includes an outer arc plate 2-1, an inner arc plate 2-2, a sealing block 2-3, an intermediate arc plate 2-4, and an anti-dropping block 2-5. The outer arc plate 2-1 is arranged on the positioning seat 3, and the axis of the outer arc plate 2-1 is arranged perpendicular to the length direction of the core rod 1; the inner arc plate 2-2 is arranged coaxially with the outer arc plate 2-1; the sealing block 2-3 is arranged between the end of the inner arc plate 2-2 and the end of the outer arc plate 2-1; the intermediate arc plate 2-4 slides It is arranged between the inner arc plate 2-2 and the outer arc plate 2-1, and a sealing block 2-3 is provided with a through hole 2-6 for passing the middle arc plate 2-4; the anti-slip block 2-5 is located between the inner arc plate 2-2 and the outer arc plate 2-1, the anti-slip block 2-5 is arranged at the inner end of the middle arc plate 2-4, and the outer end of the middle arc plate 2-4 is located outside the inner arc plate 2-2 and the outer arc plate 2-1, and the anti-slip block 2-5 is used to overlap with the sealing block 2-3 to prevent the middle arc plate 2-4 from slipping off from between the inner arc plate 2-2 and the outer arc plate 2-1.

[0048] like Figure 1 As shown, the wire clamps 2 located on the left and right sides of the core rod 1 are symmetrically arranged. Figure 4 , Figure 5 and Figure 6 As shown, taking the wire clamp 2 on the left side of the mandrel 1 as an example, the sealing block 2-3 on the left side is provided with a through hole 2-6 for passing the middle arc plate 2-4. When installing, first receive the middle arc plate 2-4 between the inner arc plate 2-2 and the outer arc plate 2-1, as shown in FIG. Figure 4 As shown, the inner arc plate 2-2 is then placed on the wire 13, and then the middle arc plate 2-4 is pulled out, so that the anti-drop block 2-5 overlaps with the sealing block 2-3 on the left, which plays a limiting role on the middle arc plate 2-4, thereby clamping the wire 13 between the middle arc plate 2-4 and the inner arc plate 2-2, as shown in FIG. Figure 6 When disassembling, the middle arc plate 2-4 is received between the inner arc plate 2-2 and the outer arc plate 2-1, and the inner arc plate 2-2 is removed from the wire 13. The structure is simple, and the disassembly and assembly are convenient and fast, saving time and effort.

[0049] Compared with Example 1, further, the sealing block 2-3 and the inner arc plate 2-2, and the sealing block 2-3 and the outer arc plate 2-1 are detachably connected, which facilitates the disassembly and assembly of the middle arc plate 2-4.

[0050] Furthermore, it also includes a locking bolt 10, and the sealing block 2-3 and the inner arc plate 2-2, and the sealing block 2-3 and the outer arc plate 2-1 are connected by means of the locking bolt 10. A recessed groove 11 is provided on the inner wall of the inner arc plate 2-2 and the outer wall of the outer arc plate 2-1, and the nut of the locking bolt 10 is located in the recessed groove 11. Figure 5As shown, the sealing block 2-3 and the inner arc plate 2-2, and the sealing block 2-3 and the outer arc plate 2-1 are connected by the locking bolt 10, and the connection is firm and reliable, and the assembly and disassembly are convenient and fast, saving time and effort. The nut of the locking bolt 10 is hidden in the sink 11, making the overall appearance more neat and beautiful, and preventing the locking bolt 10 on the inner arc plate 2-2 from contacting the wire 13 and causing wear on the wire 13.

[0051] Furthermore, the locking bolt 10 passes through the through hole 2-6 on the sealing block 2-3 and contacts or separates from the middle arc plate 2-4. Figure 5 As shown, when the middle arc plate 2-4 needs to be pulled out, the locking bolt 10 is separated from the middle arc plate 2-4, and after the wire 13 is clamped between the middle arc plate 2-4 and the inner arc plate 2-2, the locking bolt 10 is brought into contact with the middle arc plate 2-4, and the middle arc plate 2-4 is tightened, and the middle arc plate 2-4 is locked together with the outer arc plate 2-1 and the inner arc plate 2-2, so that the stability of the middle arc plate 2-4 is higher.

[0052] Furthermore, it also includes a connecting plate 12, which is arranged on the outer wall of the outer end of the middle arc plate 2-4, and the connecting plate 12 is used to form a detachable connection with the positioning seat 3. Figure 4 , Figure 5 and Figure 6 As shown, after the wire 13 is clamped between the middle arc plate 2-4 and the inner arc plate 2-2, the connecting plate 12 and the positioning seat 3 are locked together, and the left and right ends of the middle arc plate 2-4 are subjected to force, which can reduce the load-bearing requirement on the left end of the middle arc plate 2-4, and the firmness and stability are higher.

[0053] It should be noted that the above embodiments are only used to illustrate the technical solution of the utility model rather than to limit it. Although the utility model has been described in detail with reference to the preferred embodiments, ordinary technicians in the field should understand that the technical solution of the utility model can be modified or replaced by equivalents without departing from the spirit and scope of the technical solution of the utility model, which should be included in the scope of the claims of the utility model.

Claims

1. A bird-proof composite interphase spacer, comprising: Mandrel (1), A wire clamp (2), wherein the wire clamp (2) is provided at both ends of the mandrel (1), and the axis of the wire clamp (2) is arranged perpendicular to the length direction of the mandrel (1); Features: Also includes, A positioning seat (3), the wire clamp (2) being arranged on the positioning seat (3); A positioning shaft (4), the positioning shaft (4) being arranged on the positioning seat (3), the axial direction of the positioning shaft (4) being the same as the axial direction of the wire clamp (2), and the positioning seat (3) being used to drive the wire clamp (2) to rotate around the circumferential direction of the positioning shaft (4).

2. The bird-damage-proof composite interphase spacer according to claim 1, characterized in that: It also comprises a length adjustment plate (5), the length adjustment plate (5) being arranged between the end of the mandrel (1) and the positioning seat (3), the length adjustment plate (5) being rotatably connected to the positioning shaft (4), and the length adjustment plate (5) being provided with a receiving groove (6) for passing through the positioning seat (3).

3. The bird-damage-proof composite interphase spacer according to claim 1, characterized in that: Also includes, Sheds (7), a group of sheds (7) being arranged on the core rod (1), and all of the sheds (7) being arranged along the length direction of the core rod (1); The bird-proof spikes (8) are arranged on the core rod (1), the bird-proof spikes (8) and the sheds (7) are arranged alternately, and one end of the bird-proof spikes (8) away from the core rod (1) protrudes outside the shed (7).

4. The bird-damage-proof composite interphase spacer according to claim 3, characterized in that: The bird-proof spike (8) comprises: A positioning sleeve (8-1), the positioning sleeve (8-1) being arranged on the periphery of the core rod (1); Spike portions (8-2), all of the spike portions (8-2) are evenly arranged along the circumferential direction on the periphery of the positioning sleeve (8-1), and one end of the spike portion (8-2) away from the core rod (1) protrudes on the periphery of the umbrella skirt (7).

5. The bird-damage-proof composite interphase spacer according to claim 1, characterized in that: It also comprises a pressure equalizing ring (9), wherein the pressure equalizing ring (9) is arranged at the end of the core rod (1).

6. The bird-damage-proof composite interphase spacer according to claim 1, characterized in that: The wire clamp (2) comprises: An outer circular arc plate (2-1), the outer circular arc plate (2-1) being arranged on the positioning seat (3), and the axis of the outer circular arc plate (2-1) being arranged perpendicular to the length direction of the core rod (1); An inner arc plate (2-2), the inner arc plate (2-2) being coaxially arranged with the outer arc plate (2-1); A sealing block (2-3), the sealing block (2-3) being arranged between an end of the inner arc plate (2-2) and an end of the outer arc plate (2-1); An intermediate circular arc plate (2-4), the intermediate circular arc plate (2-4) being slidably disposed between the inner circular arc plate (2-2) and the outer circular arc plate (2-1), and a through hole (2-6) for passing through the intermediate circular arc plate (2-4) being formed on one of the sealing blocks (2-3); An anti-slip block (2-5), the anti-slip block (2-5) being located between the inner arc plate (2-2) and the outer arc plate (2-1), the anti-slip block (2-5) being arranged at the inner end of the middle arc plate (2-4), the outer end of the middle arc plate (2-4) being located outside the inner arc plate (2-2) and the outer arc plate (2-1), the anti-slip block (2-5) being used for overlapping with the sealing block (2-3) to prevent the middle arc plate (2-4) from slipping off between the inner arc plate (2-2) and the outer arc plate (2-1).

7. The bird-damage-proof composite interphase spacer according to claim 6, characterized in that: The sealing block (2-3) and the inner arc plate (2-2), as well as the sealing block (2-3) and the outer arc plate (2-1) are both detachably connected.

8. The bird-damage-proof composite interphase spacer according to claim 6, characterized in that: It also includes a locking bolt (10), and the sealing block (2-3) and the inner arc plate (2-2), and the sealing block (2-3) and the outer arc plate (2-1) are connected by means of the locking bolt (10), and a recessed groove (11) is provided on the inner wall of the inner arc plate (2-2) and the outer wall of the outer arc plate (2-1), and the nut of the locking bolt (10) is located in the recessed groove (11).

9. The bird-damage-proof composite interphase spacer according to claim 8, characterized in that: The locking bolt (10) passes through the through hole (2-6) on the sealing block (2-3) and then contacts or separates from the middle arc plate (2-4).

10. The bird-damage-proof composite interphase spacer according to claim 6, characterized in that: It also comprises a connecting plate (12), wherein the connecting plate (12) is arranged on the outer wall of the outer end of the middle arc plate (2-4), and the connecting plate (12) is used to form a detachable connection with the positioning seat (3).

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