Power transmission and distribution line span adjusting device for electric power planning
By designing fixed and positioning components, the problems of time-consuming, labor-intensive, and unstable connections of existing power planning transmission and distribution line span adjustment devices are solved, achieving convenient, efficient span adjustment and stable connection.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- SHANDONG DONGDIAN ENERGY ENGINEERING DESIGN INSTITUTE CO LTD
- Filing Date
- 2025-06-10
- Publication Date
- 2026-05-19
AI Technical Summary
The existing power planning uses metal frame welding for the adjustment of transmission and distribution line span adjustment devices, which is time-consuming and labor-intensive. High-altitude welding operations are difficult and the connection is unstable, affecting the convenience and safety of span adjustment.
It employs fixed components, supporting components, and power transmission and distribution line positioning components, and uses components such as snap rings, flanges, screws, and nuts to achieve span adjustment. It utilizes snap blocks and threaded rods to improve connection stability and reduce installation difficulty.
It has achieved convenience and stability in the span adjustment of power transmission and distribution lines, and improved the safety and reliability of the span adjustment device and the connection.
Smart Images

Figure CN224264657U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the technical field of span adjustment devices, specifically a span adjustment device for power transmission and distribution lines used in power planning. Background Technology
[0002] In power planning, the span adjustment device of transmission and distribution lines is crucial to ensuring the safe and stable operation of the lines. The span refers to the total horizontal distance of the tension section formed between two tension towers, which determines the layout and structure of the power line. When the transmission line needs span adjustment, it is solved by raising the towers. Raising the towers can effectively increase the span height of the transmission line, thereby meeting the line's requirements. Among them, the span adjustment device is used for the span adjustment of transmission and distribution lines.
[0003] However, current power planning transmission and distribution line span adjustment devices on the market adjust the transmission and distribution line span by welding metal frames. This adjustment process is time-consuming and labor-intensive, and the high-altitude welding operation is difficult, which hinders the convenience of span adjustment after the change. Furthermore, the stability of the connection point with the original tower cannot be guaranteed, which is detrimental to the safety of the transmission and distribution line. Therefore, those skilled in the art have provided a power planning transmission and distribution line span adjustment device to solve the problems mentioned in the background art. Utility Model Content
[0004] The purpose of this invention is to provide a power transmission and distribution line span adjustment device for power planning, so as to solve the problems mentioned in the background art.
[0005] To achieve the above objectives, this utility model provides the following technical solution:
[0006] A power transmission and distribution line span adjustment device for power planning includes a fixed component, a supporting component, and a transmission and distribution line positioning component. The supporting component is located above the fixed component, and the transmission and distribution line positioning component is located above the supporting component. The fixed component includes a first retaining ring, a second retaining ring on one side of the first retaining ring, and a first fixing screw at the rear end of the second retaining ring. A first flange is provided at the upper outer end of both the first and second retaining rings. The supporting component includes a second flange, a support frame on the upper side of the second flange, and a second fixing screw inside the second flange. An adjusting screw is provided on the outer side of both the first and second retaining rings, and a locking block is provided at the inner end of the adjusting screw.
[0007] As a further embodiment of this utility model: the power transmission and distribution line positioning component includes a mounting plate, a power transmission and distribution line clamp is provided on the upper side of the mounting plate, a rotating rod is provided on the lower side of the mounting plate, a threaded rod is installed on the lower side of the mounting plate near the rotating rod, and a sliding groove is provided on the upper side of the support frame.
[0008] As a further embodiment of this utility model: the second flange is fixed to the upper side of the first flange by the second fixing screw, the front end of the first retaining ring rotates to the front end of the second retaining ring, and the rear end of the first retaining ring is fixed to the rear end of the second retaining ring by the first fixing screw.
[0009] As a further embodiment of this utility model: the outer end of the adjusting screw rotates to the outer position of the first retaining ring, the outer end of the adjusting screw rotates to the outer position of the second retaining ring, and the inner end of the adjusting screw rotates to the outer position of the retaining block.
[0010] As a further embodiment of this utility model: the lower end of the rotating rod rotates to the upper position of the support frame, and the power transmission and distribution line clamp rotates to the upper position of the mounting plate.
[0011] As a further embodiment of this utility model: the lower end of the threaded rod slides inside the groove, and the threaded rod is fixed inside the groove by a nut.
[0012] Compared with the prior art, the beneficial effects of this utility model are:
[0013] 1. The power planning transmission and distribution line span adjustment device of this utility model assembles the transmission and distribution line span adjustment device through fixed components and supports the transmission and distribution line through the transmission and distribution line positioning components, which facilitates the adjustment of the transmission and distribution line span, reduces the installation difficulty, and improves the convenience of transmission and distribution line span adjustment.
[0014] 2. By using the locking blocks to further secure the connection between the fixed components and the original tower, the stability of the transmission and distribution line span adjustment device is improved, which is beneficial to the safety of the transmission and distribution line. Attached Figure Description
[0015] Figure 1 A schematic diagram of a span adjustment device for power transmission and distribution lines used in power planning;
[0016] Figure 2 A schematic diagram of the fixed components in a power transmission and distribution line span adjustment device for power planning purposes;
[0017] Figure 3 A structural schematic diagram of the supporting components in a power transmission and distribution line span adjustment device for power planning purposes;
[0018] Figure 4 A schematic diagram of the positioning components of a power transmission and distribution line in a power planning span adjustment device;
[0019] Figure 5 for Figure 3A schematic diagram of the structure of part A.
[0020] In the diagram: 1. Fixing component; 2. Supporting component; 3. Power transmission and distribution line positioning component; 4. First retaining ring; 5. Second retaining ring; 6. First fixing screw; 7. First flange; 8. Second flange; 9. Support frame; 10. Second fixing screw; 11. Adjusting screw; 12. Clamping block; 13. Mounting plate; 14. Power transmission and distribution line clamp; 15. Rotating rod; 16. Threaded rod; 17. Slide groove; 18. Nut. Detailed Implementation
[0021] Please see Figures 1-5 In this embodiment of the utility model, the power transmission and distribution line span adjustment device for power planning includes a fixing component 1, a supporting component 2, and a transmission and distribution line positioning component 3. The supporting component 2 is located above the fixing component 1, and the transmission and distribution line positioning component 3 is located above the supporting component 2. The fixing component 1 includes a first retaining ring 4, a second retaining ring 5 is provided on one side of the first retaining ring 4, a first fixing screw 6 is provided at the rear end of the second retaining ring 5, and a first flange 7 is provided at the upper outer side of both the first retaining ring 4 and the second retaining ring 5. The supporting component 2 includes a second flange 8. A support frame 9 is provided on the upper side of the second flange 8. A second fixing screw 10 is provided inside the second flange 8. Adjusting screws 11 are provided on the outer sides of both the first retaining ring 4 and the second retaining ring 5. A locking block 12 is provided on the inner end of the adjusting screw 11. The second flange 8 is fixed to the upper side of the first flange 7 by the second fixing screw 10. The front end of the first retaining ring 4 rotates to the front end of the second retaining ring 5. The rear end of the first retaining ring 4 is fixed to the rear end of the second retaining ring 5 by the first fixing screw 6. The outer end of the adjusting screw 11 rotates to the outer side of the first retaining ring 4. At the designated location, the outer end of the adjusting screw 11 rotates to the outer position of the second retaining ring 5, and the inner end of the adjusting screw 11 rotates to the outer position of the retaining block 12. First, the power transmission and distribution line span adjustment device is carried to the usage location. Then, the front end of the first retaining ring 4 rotates to the front end of the second retaining ring 5, opening the first retaining ring 4 and the second retaining ring 5, and locking the first retaining ring 4 and the second retaining ring 5 onto the outer side of the transmission and distribution line span adjustment tower. The first retaining ring 4 and the second retaining ring 5 are fixed to the outer side of the tower by the first fixing screw 6. The outer end of the adjusting screw 11 is at the first... The outer side of the retaining ring 4 or the second retaining ring 5 rotates, and the inner end of the adjusting screw 11 rotates on the outer side of the retaining block 12, fixing the retaining block 12 to the outer side of the tower, further fixing the fixing component 1, placing the second flange 8 on the upper side of the first flange 7, and fixing the second flange 8 and the first flange 7 by the second fixing screw 10, the power transmission and distribution line positioning component 3 rotates on the upper side of the support frame 9, adjusting the angle of the power transmission and distribution line positioning component 3, completing the positioning of the mounting plate 13, fixing the power transmission and distribution line inside the power transmission and distribution line positioning component 3, and completing the power transmission and distribution line span adjustment.
[0022] exist Figure 3 , 4 In section 5: The power transmission and distribution line positioning component 3 includes a mounting plate 13. A power transmission and distribution line clamp 14 is provided on the upper side of the mounting plate 13, and a rotating rod 15 is provided on the lower side of the mounting plate 13. A threaded rod 16 is installed on the lower side of the mounting plate 13 near the rotating rod 15. A sliding groove 17 is opened on the upper side of the support frame 9. The lower end of the rotating rod 15 rotates to the upper side of the support frame 9, the power transmission and distribution line clamp 14 rotates to the upper side of the mounting plate 13, and the lower end of the threaded rod 16 slides inside the sliding groove 17. The threaded rod 16 is fixed to the inside of the slide groove 17 by the nut 18. The rotating rod 15 rotates on the upper side of the support frame 9, and the threaded rod 16 slides inside the slide groove 17 to adjust the angle of the mounting plate 13. The nut 18 rotates on the outside of the threaded rod 16 to fix the threaded rod 16 inside the slide groove 17, thus completing the positioning of the mounting plate 13. The lower end of the power transmission and distribution line clamp 14 rotates on the upper side of the mounting plate 13 to fix the power transmission and distribution line inside the power transmission and distribution line clamp 14, thus completing the adjustment of the power transmission and distribution line span.
[0023] The working principle of this utility model is as follows: First, the power transmission and distribution line span adjustment device is carried to the location of use. Then, the front end of the first retaining ring 4 rotates at the front end of the second retaining ring 5, opening the first retaining ring 4 and the second retaining ring 5, and locking the first retaining ring 4 and the second retaining ring 5 onto the outside of the transmission and distribution line span adjustment tower. The first retaining ring 4 and the second retaining ring 5 are fixed to the outside of the tower by the first fixing screw 6. The outer end of the adjusting screw 11 rotates on the outside of the first retaining ring 4 or the second retaining ring 5, and the inner end of the adjusting screw 11 rotates on the outside of the locking block 12, fixing the locking block 12 to the outside of the tower. First, fix the fixing component 1, place the second flange 8 on the upper side of the first flange 7, and fix the second flange 8 and the first flange 7 with the second fixing screw 10. The rotating rod 15 rotates on the upper side of the support frame 9, and the threaded rod 16 slides inside the slide groove 17 to adjust the angle of the mounting plate 13. The nut 18 rotates on the outside of the threaded rod 16 to fix the threaded rod 16 inside the slide groove 17, thus completing the positioning of the mounting plate 13. The lower end of the power transmission and distribution line clamp 14 rotates on the upper side of the mounting plate 13 to fix the power transmission and distribution line inside the power transmission and distribution line clamp 14, thus completing the adjustment of the power transmission and distribution line span.
[0024] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.
Claims
1. A device for adjusting the span of a power transmission and distribution line for power planning, characterized by, The device includes a fixing component (1), a supporting component (2), and a power transmission and distribution line positioning component (3). The supporting component (2) is located on the upper side of the fixing component (1), and the power transmission and distribution line positioning component (3) is located on the upper side of the supporting component (2). The fixing component (1) includes a first retaining ring (4), a second retaining ring (5) is provided on one side of the first retaining ring (4), a first fixing screw (6) is provided at the rear end of the second retaining ring (5), and a first flange (7) is provided at the upper outer side of both the first retaining ring (4) and the second retaining ring (5). The supporting component (2) includes a second flange (8), a support frame (9) is provided on the upper side of the second flange (8), a second fixing screw (10) is provided inside the second flange (8), and an adjusting screw (11) is provided on the outer side of both the first retaining ring (4) and the second retaining ring (5). A locking block (12) is provided at the inner end of the adjusting screw (11).
2. The power planning transmission line span adjustment device of claim 1, wherein, The power transmission and distribution line positioning component (3) includes a mounting plate (13), a power transmission and distribution line clamp (14) is provided on the upper side of the mounting plate (13), a rotating rod (15) is provided on the lower side of the mounting plate (13), a threaded rod (16) is installed on the lower side of the mounting plate (13) near the rotating rod (15), and a sliding groove (17) is provided on the upper side of the support frame (9).
3. The power planning transmission line span adjustment device of claim 1, wherein, The second flange (8) is fixed to the upper side of the first flange (7) by the second fixing screw (10), the front end of the first retaining ring (4) rotates to the front end of the second retaining ring (5), and the rear end of the first retaining ring (4) is fixed to the rear end of the second retaining ring (5) by the first fixing screw (6).
4. The power planning transmission line span adjustment device of claim 1, wherein, The outer end of the adjusting screw (11) rotates to the outer position of the first retaining ring (4), the outer end of the adjusting screw (11) rotates to the outer position of the second retaining ring (5), and the inner end of the adjusting screw (11) rotates to the outer position of the retaining block (12).
5. The power planning transmission line span adjustment device of claim 2, wherein, The lower end of the rotating rod (15) rotates to the upper position of the support frame (9), and the power transmission and distribution line clamp (14) rotates to the upper position of the mounting plate (13).
6. The power planning transmission line span adjustment device of claim 2, wherein, The lower end of the threaded rod (16) slides inside the groove (17), and the threaded rod (16) is fixed inside the groove (17) by a nut (18).