Power distribution network overhead line spacer

Abstract

The invention discloses a power distribution network overhead line spacer, and relates to the technical field of spacers. A reinforcing frame is fixed in the supporting ring, a first annular groove is formed in the circumferential face of the supporting ring, and evenly-distributed through holes are formed in the front end and the rear end of the interior of the first annular groove; the connecting assembly comprises connecting blocks and connecting frames, the evenly-distributed connecting blocks are slidably connected into the first annular groove, the two corresponding connecting frames are fixed to the front side and the rear side of the first annular groove, and the two connecting frames are attached to the front side and the rear side of the supporting ring correspondingly; a length adjusting assembly is installed on the side face, located outside the first annular groove, of the connecting block, a supporting assembly is installed on the side face of the length adjusting assembly, and a wiring assembly is installed on the side face of the supporting assembly. And meanwhile, installation can be rapidly conducted according to requirements, and different numbers of guides can be conveniently adapted.

Description

Technical Field

[0001] The present invention relates to the technical field of spacer bars, in particular to a spacer bar for an overhead line of a distribution network. Background Art

[0002] The distribution network consists of overhead lines, towers, cables, distribution transformers, switchgear, reactive power compensation capacitors and other distribution equipment and ancillary facilities. Its main function in the power grid is to distribute electrical energy. Spacers are commonly used electrical hardware in overhead lines. Spacers are installed on split cables to fix the spacing between the split cables to prevent whiplash between the cables and suppress breeze vibration and sub-span oscillation. Traditional spacers have multiple limitations in application, including structural fixity, adjustment efficiency, and adaptability. Their rigid frames cannot dynamically adjust spacing based on line voltage levels, number of splits, and meteorological conditions, requiring complete replacement during renovation projects, increasing construction costs and safety risks. They also lack adaptability to varying numbers of cables, and their fixed structure cannot be rapidly expanded by adding or removing modules. Therefore, we propose a spacer for overhead lines in distribution networks. Summary of the Invention

[0003] The technical problem to be solved by the present invention is to overcome the existing defects and provide a distribution network overhead line spacer that can quickly adjust the spacing according to needs, and can also be quickly installed according to needs to facilitate adaptation to different numbers of guides, which can effectively solve the problems in the background technology.

[0004] To achieve the above-mentioned object, the present invention provides the following technical solutions: a distribution network overhead line spacer, comprising a support ring and a connecting assembly; Support ring: A reinforcement frame is fixed inside, a first annular groove is opened on the circumferential surface of the support ring, and evenly distributed through holes are opened at the front and rear ends of the first annular groove; Connecting assembly: includes a connecting block and a connecting frame, the interior of the first annular groove is slidingly connected with evenly distributed connecting blocks, two corresponding connecting frames are fixed on the front and rear sides, and the two connecting frames are respectively fitted with the front and rear sides of the support ring, and the connecting block is located on the side outside the first annular groove. A length adjustment assembly is installed on the side of the length adjustment assembly, and a support assembly is installed on the side of the support assembly. A wiring assembly is installed on the side of the support assembly, and a pulling assembly is installed in the middle of the connecting block, which is connected to the support ring by setting the connecting block and the connecting frame.

[0005] Furthermore, the connecting assembly also includes a T-shaped rope, a fixing ring, a clamp, a clamping hole and a first spring. A T-shaped slot is provided in the middle of the connecting block, and two corresponding fixing rings are fixed at the left and right ends of the T-shaped slot. A T-shaped rope is provided inside the two fixing rings, and the left and right ends of the T-shaped slot are slidably connected to two corresponding clamps, and the clamps are located inside the corresponding through holes. A clamping hole is provided on the side of the connecting frame, and the clamps are clamped inside the corresponding clamping holes. A first spring is fixed on the end face of the fixing ring, and the other end of the first spring is fixed on the end face of the corresponding clamping head. The two ends of the T-shaped rope are fixed on the end faces of the two corresponding clamping heads, and are connected to the through holes opened on the circumferential surface of the support ring by setting the clamps.

[0006] Furthermore, the pulling assembly includes a pulling rod, a sliding plate and a pulling plate. A pulling rod is provided inside the T-slot opened in the middle of the connecting block. The pulling rod is located on the inner end face of the T-slot and a sliding plate is fixed thereon. One end of the T-rope away from the two clamps is fixed on the end face of the sliding plate, and the other end of the pulling rod is fixed with a pulling plate. The pulling rod is provided to drive the sliding plate to move, thereby driving the T-rope to move.

[0007] Furthermore, the pulling assembly also includes a connecting ring and a second spring. A connecting ring is fixed inside the T-slot opened in the middle of the connecting block. The pulling rod is slidably connected to the inside of the connecting ring. A second spring is sleeved on the circumferential surface of the pulling rod. One end of the second spring is fixed on the end face of the connecting ring, and the other end of the second spring is fixed on the end face of the sliding disk. The sliding disk is supported by setting the connecting ring and the second spring.

[0008] Furthermore, the length adjustment component includes a fixed frame, a moving block, a guide rod, a threaded rod and a toggle disk, a fixed frame is provided on the side of the connecting block, the fixed frame is fixed on the side surfaces of the two corresponding connecting frames, the internal sliding connection of the fixed frame is connected to the moving block, a first threaded hole is provided in the middle of the moving block, the internal thread of the first threaded hole is connected to the threaded rod, a rotating hole is provided on the side of the fixed frame, the threaded rod is rotatably connected to the inside of the rotating hole, a toggle disk is fixed on the end face of the threaded rod, two corresponding guide holes are provided on the side of the fixed frame, the internal sliding connection of the guide hole is connected to the guide rod, and the two guide rods are fixed on the side of the moving block. The position of the wiring assembly is adjusted by setting the length adjustment component, which is convenient for adapting to cables with different spacings.

[0009] Furthermore, the support assembly includes a mounting frame, a threaded column, a limit plate and a support rod. The mounting frame is fixed on the end faces of two adjacent guide rods. A second threaded hole is provided in the middle of the mounting frame. The internal thread of the second threaded hole is connected to a threaded column. A limit plate is fixed on the end face of the threaded column. The limit plate is in contact with the side of the mounting frame. A support rod is fixed on the end face of the limit plate. The length adjustment assembly is connected to the wiring assembly by setting the support assembly.

[0010] Furthermore, the wiring assembly includes a fixing frame, an arc-shaped fastening semi-ring, an anti-slip groove and a bolt. A fixing frame is fixed on the end face of the support rod away from the limit plate. Two corresponding arc-shaped fastening semi-rings are rotatably connected on both sides of the fixing frame. The interior of the arc-shaped fastening semi-ring is provided with evenly distributed anti-slip grooves. The two arc-shaped fastening semi-rings are connected by two bolts and are connected to the external cable through the setting of a wiring assembly.

[0011] Furthermore, a pointer is fixed on the side of the connecting frame, and evenly distributed scale grooves are opened at the front and rear ends of the support ring. The pointer cooperates with the scale grooves, and the setting of the pointer and the scale grooves facilitates the user to determine the position of the connecting block.

[0012] Furthermore, a second annular groove is provided inside the first annular groove provided on the upper end of the circumferential surface of the support ring, and a uniformly distributed guide frame is provided inside the second annular groove. The guide frame is rotatably connected to the inside of the guide wheel, and all the guide wheels are slidingly connected to the inside of the second annular groove. The guide frame is fixed on the side of the corresponding connecting block, and the stability of the movement of the connecting block is improved by providing the guide frame and the guide wheel.

[0013] Furthermore, an anti-slip ring is fixed on the circumferential surface of the dial, and evenly distributed fixing strips are fixed on the circumferential surface of the anti-slip ring. The provision of the anti-slip ring makes it easier for users to rotate the dial.

[0014] Compared with the prior art, the present invention has the following advantages: 1. The sliding fit of the connecting block in the first annular groove of the support ring and the synergistic effect of the length adjustment component allow for quick adjustment of the spacing between the wiring components. Users only need to move the connecting block and use the pointer and scale groove for precise positioning to adapt to the spacing requirements of cables with different split numbers. There is no need to replace the spacer rods as a whole, significantly reducing modification costs and construction risks. 2. The detachable snap-in structure and guide wheel-slide system enable the connection assembly to quickly add or remove modules as needed. The connection block is quickly fixed through the elastic snap connection between the T-rope, the clamp head and the through hole. Combined with the precise guidance of the guide frame and guide wheel, the module can be easily expanded while ensuring connection stability. The threaded adjustment structure and anti-slip fastening half ring in the support assembly further ensure the reliable fixation of different cable quantities, improving the overall stability of the system. 3. This design effectively solves the technical pain points of traditional spacer bars, such as inconvenient adjustment and poor scalability. While ensuring structural strength, it achieves a high degree of adjustability and adaptability. It is particularly suitable for multi-split cable systems and power grid transformation projects under complex working conditions. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 This is a schematic diagram of the front structure of the present invention; Figure 2 This is an enlarged view of point A of the present invention; Figure 3 Schematic diagram of the length adjustment component structure of the present invention; Figure 4 B is an enlarged view of the present invention; Figure 5 This is a schematic diagram of the wiring assembly structure of the present invention.

[0016] In the figure: 1 support ring, 2 connecting assembly, 21 connecting block, 22 T-rope, 23 fixing ring, 24 clamp, 25 clamping hole, 26 first spring, 27 connecting frame, 3 pulling assembly, 31 connecting ring, 32 pulling rod, 33 sliding plate, 34 second spring, 35 pulling plate, 4 length adjustment assembly, 41 fixed frame, 42 moving block, 43 guide rod, 44 threaded rod, 45 toggle plate, 5 support assembly, 51 mounting frame, 52 threaded column, 53 limit plate, 54 support rod, 6 wiring assembly, 61 fixing frame, 62 arc-shaped fastening half ring, 63 anti-slip groove, 64 bolt, 7 pointer, 8 scale groove, 9 guide frame, 10 guide wheel, 11 anti-slip ring, 12 reinforcement frame, 13 through hole. DETAILED DESCRIPTION

[0017] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0018] See also Figure 1-5 ,This embodiment provides a technical solution: a distribution network overhead line spacer, comprising a support ring 1 and a connecting assembly 2; Support ring 1: A reinforcement frame 12 is fixed inside the support ring 1. A first annular groove is opened on the circumferential surface of the support ring 1. Evenly distributed through holes 13 are opened at the front and rear ends of the first annular groove; Connecting assembly 2: includes a connecting block 21 and a connecting frame 27. The interior of the first annular groove is slidably connected with an evenly distributed connecting block 21. Two corresponding connecting frames 27 are fixed on the front and rear sides. The two connecting frames 27 are respectively fitted with the front and rear sides of the support ring 1. The connecting block 21 is located on the side outside the first annular groove. A length adjustment assembly 4 is installed on the side of the length adjustment assembly 4. A support assembly 5 is installed on the side of the support assembly 5. A wiring assembly 6 is installed on the side of the support assembly 5. A pulling assembly 3 is installed in the middle of the connecting block 21. The connecting assembly 2 also includes a T-shaped rope 22, a fixing ring 23, a clamping head 24, a clamping hole 25 and a first spring 26. A T-shaped slot is opened in the middle of the connecting block 21, and two corresponding fixing rings 23 are fixed on the left and right ends of the inside of the T-shaped slot. , a T-shaped rope 22 is provided inside the two fixing rings 23, and two corresponding clamps 24 are slidably connected to the left and right ends of the T-slot. The clamp 24 is located inside the corresponding through hole 13, and a clamping hole 25 is provided on the side of the connecting frame 27. The clamp 24 is clamped in the corresponding clamping hole 25. A first spring 26 is fixed on the end face of the fixing ring 23, and the other end of the first spring 26 is fixed on the end face of the corresponding clamp 24. The two ends of the T-shaped rope 22 are fixed on the end faces of the two corresponding clamps 24. The pulling assembly 3 includes a pulling rod 32, a sliding plate 33 and a pulling plate 35. The T-slot opened in the middle of the connecting block 21 is provided with a pulling rod 32. The pulling rod 32 is located on the inner end face of the T-slot and is fixed with a sliding plate 33. The T-slot One end of the rope 22 away from the two clamps 24 is fixed on the end face of the sliding disk 33, and the other end of the pulling rod 32 is fixed with a pulling disk 35. The pulling assembly 3 also includes a connecting ring 31 and a second spring 34. The connecting ring 31 is fixed inside the T-slot opened in the middle of the connecting block 21, and the pulling rod 32 is slidably connected to the inside of the connecting ring 31. The second spring 34 is sleeved on the circumferential surface of the pulling rod 32, one end of the second spring 34 is fixed on the end face of the connecting ring 31, and the other end of the second spring 34 is fixed on the end face of the sliding disk 33. The length adjustment assembly 4 includes a fixed frame 41, a moving block 42, a guide rod 43, a threaded rod 44 and a toggle disk 45. A fixed frame 41 is provided on the side of the connecting block 21, and the fixed frame 41 is fixed to the two corresponding On the side of the connecting frame 27, the interior of the fixed frame 41 is slidably connected to the moving block 42, and a first threaded hole is provided in the middle of the moving block 42. The internal thread of the first threaded hole is connected to a threaded rod 44. A rotating hole is provided on the side of the fixed frame 41, and the threaded rod 44 is rotatably connected to the inside of the rotating hole. A toggle plate 45 is fixed on the end surface of the threaded rod 44. Two corresponding guide holes are provided on the side of the fixed frame 41, and the internal sliding connection of the guide hole is provided with a guide rod 43. The two guide rods 43 are fixed on the side of the moving block 42. The support assembly 5 includes a mounting frame 51, a threaded column 52, a limit plate 53 and a support rod 54. The end surfaces of the two adjacent guide rods 43 are fixed with a mounting frame 51, and a second threaded hole is provided in the middle of the mounting frame 51.The internal thread of the second threaded hole is connected with a threaded column 52, and a limit plate 53 is fixed on the end surface of the threaded column 52. The limit plate 53 fits with the side of the mounting bracket 51, and a support rod 54 is fixed on the end surface of the limit plate 53. The wiring assembly 6 includes a fixing frame 61, an arc-shaped fastening semi-ring 62, an anti-slip groove 63 and a bolt 64. A fixing frame 61 is fixed on the end surface of the support rod 54 away from the limit plate 53. Two corresponding arc-shaped fastening semi-rings 62 are rotatably connected on both sides of the fixing frame 61. The interior of the arc-shaped fastening semi-ring 62 is provided with evenly distributed anti-slip grooves. The two arc-shaped fastening semi-rings 62 are fastened by two The bolt 64 is connected to the external cable through the wiring assembly 6. The length adjustment assembly 4 is connected to the wiring assembly 6 through the support assembly 5. The position of the wiring assembly 6 can be adjusted by the length adjustment assembly 4 to facilitate adaptation to cables of different spacings. The sliding plate 33 is supported by the connecting ring 31 and the second spring 34. The sliding plate 33 is driven to move by the pulling rod 32, thereby driving the T-shaped rope 22 to move. The clamp 24 is connected to the through hole 13 opened on the circumferential surface of the support ring 1, and is connected to the support ring 1 through the connecting block 21 and the connecting frame 27.

[0019] Among them: a pointer 7 is fixed on the side of the connecting frame 27, and evenly distributed scale grooves 8 are opened at the front and rear ends of the support ring 1. The pointer 7 cooperates with the scale grooves 8. By setting the pointer 7 and the scale grooves 8, it is convenient for the user to determine the position of the connecting block 21.

[0020] Among them: a second annular groove is opened inside the first annular groove opened on the upper end of the circumferential surface of the support ring 1, and a uniformly distributed guide frame 9 is set inside the second annular groove. The guide frame 9 is rotatably connected to the inside of the guide wheel 10, and all the guide wheels 10 are slidingly connected to the inside of the second annular groove. The guide frame 9 is fixed on the side of the corresponding connecting block 21. The stability of the movement of the connecting block 21 is improved by setting the guide frame 9 and the guide wheel 10.

[0021] The anti-slip ring 11 is fixed on the circumferential surface of the dial 45 , and evenly distributed fixing strips are fixed on the circumferential surface of the anti-slip ring 11 . The anti-slip ring 11 facilitates the user to rotate the dial 45 .

[0022] The working principle of a distribution network overhead line spacer provided by the present invention is as follows: first, an appropriate number of wiring assemblies 6 are selected according to needs, and then the connecting block 21 connected to the wiring assembly 6 is inserted into the inside of the annular groove opened on the circumferential surface of the support ring 1. After insertion, the two clamps 24 in the connecting block 21 will move through the corresponding two through holes 13 and enter the inside of the corresponding two clamping holes 25 under the action of the two first springs 26 connected to it to fix the connecting block 21. When in use, the pull plate 35 is pulled outward to move the T-shaped rope 22 connected to it to drive the clamp 24 connected to it to disengage from the through hole 13 and the clamping hole 25, and then adjust the connecting block 21 to slide along the first annular groove on the circumferential surface of the support ring 1 to the target position and then reset and fix it. After fixation, the dial 45 is rotated according to the spacing of the cables to drive the threaded rod 44 to drive the moving block 42 to move along the guide rod 43, and the radial extension length of the support rod 54 is adjusted by the threaded column 52. The cable is placed between the arc-shaped fastening half rings 62 and locked with bolts 64 to complete the fixing and support of the cable.

[0023] The above descriptions are merely embodiments of the present invention and are not intended to limit the patent scope of the present invention. Any equivalent structure or equivalent process transformation made using the contents of the present invention description and drawings, or directly or indirectly applied in other related technical fields, are also included in the patent protection scope of the present invention.

Claims

1. A spacer for overhead lines in a distribution network, characterized by: It comprises a support ring (1) and a connecting assembly (2); Support ring (1): a reinforcement frame (12) is fixed inside, a first annular groove is provided on the circumferential surface of the support ring (1), and evenly distributed through holes (13) are provided at the front and rear ends of the first annular groove; Connecting assembly (2): comprising a connecting block (21) and a connecting frame (27), wherein the first annular groove is internally slidably connected with evenly distributed connecting blocks (21), and two corresponding connecting frames (27) are fixed on the front and rear sides, and the two connecting frames (27) are respectively fitted with the front and rear sides of the support ring (1), and the connecting block (21) is provided with a length adjustment assembly (4) on the side outside the first annular groove, and a support assembly (5) is provided on the side of the length adjustment assembly (4), and a wiring assembly (6) is provided on the side of the support assembly (5), and a pulling assembly (3) is provided in the middle of the connecting block (21).

2. A distribution network overhead line spacer according to claim 1, characterized in that: The connecting assembly (2) further comprises a T-shaped rope (22), a fixing ring (23), a clamping head (24), a clamping hole (25) and a first spring (26). A T-shaped slot is provided in the middle of the connecting block (21). Two corresponding fixing rings (23) are fixed at the left and right ends of the T-shaped slot. T-shaped ropes (22) are provided inside the two fixing rings (23). Two corresponding clamping heads (24) are slidably connected to the left and right ends of the T-shaped slot. The clamping heads (24) are located inside the corresponding through holes (13). A clamping hole (25) is provided on the side of the connecting frame (27). The clamping head (24) is clamped inside the corresponding clamping hole (25). A first spring (26) is fixed on the end face of the fixing ring (23). The other end of the first spring (26) is fixed on the end face of the corresponding clamping head (24). The two ends of the T-shaped rope (22) are fixed on the end faces of the two corresponding clamping heads (24).

3. A distribution network overhead line spacer according to claim 2, characterized in that: The pulling assembly (3) comprises a pulling rod (32), a sliding plate (33) and a pulling plate (35); a pulling rod (32) is provided inside a T-shaped slot opened in the middle of the connecting block (21); the pulling rod (32) is located on the inner end face of the T-shaped slot and is fixed with a sliding plate (33); one end of the T-shaped rope (22) away from the two clamps (24) is fixed on the end face of the sliding plate (33); and the other end of the pulling rod (32) is fixed with a pulling plate (35).

4. A distribution network overhead line spacer according to claim 3, characterized in that: The pulling assembly (3) further comprises a connecting ring (31) and a second spring (34), wherein the connecting ring (31) is fixed inside the T-shaped slot opened in the middle of the connecting block (21), the pulling rod (32) is slidably connected inside the connecting ring (31), and the second spring (34) is sleeved on the circumferential surface of the pulling rod (32), one end of the second spring (34) is fixed on the end face of the connecting ring (31), and the other end of the second spring (34) is fixed on the end face of the sliding plate (33).

5. The overhead line spacer for a power distribution network according to claim 1, characterized in that: The length adjustment assembly (4) comprises a fixed frame (41), a moving block (42), a guide rod (43), a threaded rod (44) and a toggle plate (45), wherein a fixed frame (41) is provided on the side of the connecting block (21), the fixed frame (41) is fixed on the side of the two corresponding connecting frames (27), the interior of the fixed frame (41) is slidably connected to the moving block (42), a first threaded hole is provided in the middle of the moving block (42), the interior of the first threaded hole is threadedly connected to the threaded rod (44), a rotating hole is provided on the side of the fixed frame (41), the threaded rod (44) is rotatably connected to the interior of the rotating hole, a toggle plate (45) is fixed on the end face of the threaded rod (44), two corresponding guide holes are provided on the side of the fixed frame (41), the interior of the guide hole is slidably connected to the guide rod (43), and both guide rods (43) are fixed on the side of the moving block (42).

6. A distribution network overhead line spacer according to claim 5, characterized in that: The support assembly (5) comprises a mounting frame (51), a threaded column (52), a limiting plate (53) and a support rod (54), wherein the mounting frame (51) is fixed on the end surfaces of two adjacent guide rods (43), a second threaded hole is provided in the middle of the mounting frame (51), the inner thread of the second threaded hole is connected to the threaded column (52), a limiting plate (53) is fixed on the end surface of the threaded column (52), the limiting plate (53) is fitted with the side surface of the mounting frame (51), and a support rod (54) is fixed on the end surface of the limiting plate (53).

7. A distribution network overhead line spacer according to claim 6, characterized in that: The wiring assembly (6) includes a fixing frame (61), an arc-shaped fastening half ring (62), an anti-slip groove (63) and a bolt (64). The fixing frame (61) is fixed on the end surface of the support rod (54) away from the limit plate (53). Two corresponding arc-shaped fastening half rings (62) are rotatably connected on both sides of the fixing frame (61). The interior of the arc-shaped fastening half ring (62) is provided with evenly distributed anti-slip grooves, and the two arc-shaped fastening half rings (62) are connected by two bolts (64).

8. The overhead line spacer for a power distribution network according to claim 1, characterized in that: A pointer (7) is fixed on the side of the connecting frame (27), and evenly distributed scale grooves (8) are provided at both the front and rear ends of the support ring (1), and the pointer (7) cooperates with the scale grooves (8).

9. The overhead line spacer for a power distribution network according to claim 1, characterized in that: A second annular groove is provided inside the first annular groove provided on the upper end of the circumferential surface of the support ring (1), and evenly distributed guide frames (9) are provided inside the second annular groove. The guide frames (9) are rotatably connected to the inside of the guide frames (9), and all the guide wheels (10) are slidably connected to the inside of the second annular groove. The guide frames (9) are fixed on the side surfaces of the corresponding connecting blocks (21).

10. The overhead line spacer for a power distribution network according to claim 5, characterized in that: An anti-slip ring (11) is fixed on the circumferential surface of the dial plate (45), and evenly distributed fixing strips are fixed on the circumferential surface of the anti-slip ring (11).

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