Protective structure for electric power circuit
By fixing power line conductors with threaded tube assemblies, the problems of easy loosening and decreased insulation performance of traditional insulating tape are solved, ensuring the safety of power lines in harsh and humid environments.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- LINZHOU CONSTR ENG GRP CO LTD
- Filing Date
- 2025-05-15
- Publication Date
- 2026-04-17
AI Technical Summary
In existing power line protection structures, traditional wiring methods using insulating tape are prone to loosening, and their insulation performance deteriorates in humid environments, affecting the safety of power lines.
The system uses a combination of components such as threaded tubes, rubber pads, hollow cylinders, silicone tubes, limit blocks, protective shells, and pressure blocks to fix the wires through threaded components, avoiding the use of insulating tape and ensuring that the wires do not loosen or lose insulation in harsh and humid environments.
This ensures that the conductors remain firmly fixed and their insulation does not deteriorate even in harsh environments, thus improving the safety of power lines.
Smart Images

Figure CN224138658U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of power line technology, and in particular to a protective structure for power lines. Background Technology
[0002] Power line protection structures refer to systematic protective devices designed to ensure the safety of power transmission and prevent lines from suffering mechanical damage, environmental erosion, and human-caused damage.
[0003] Currently, existing protective structures for power lines on the market often suffer from the following shortcomings during use: Traditional wiring methods in power lines mostly rely on insulating tape for bonding, but the adhesiveness and durability of insulating tape are limited. Especially in harsh environments, the tape is prone to loosening after prolonged use. Furthermore, traditional protective structures often neglect the importance of waterproofing and moisture protection. In humid environments, the insulation performance of the insulating tape will significantly decrease, seriously threatening the safe operation of power lines. Therefore, those skilled in the art provide a protective structure for power lines to address the problems mentioned in the background section. Utility Model Content
[0004] This utility model provides a protective structure for power lines, which adopts the following technical solution:
[0005] A protective structure for power lines, comprising:
[0006] A threaded tube is provided, with a rubber gasket fitted on the threaded tube. Two round tubes are respectively provided on both sides of the threaded tube. A hollow cylinder is fitted on one end of the round tube. A cylinder is fixedly installed on one side of the hollow cylinder. A through groove is opened in the cylinder. A silicone round tube is fixedly installed on one side of the round tube and inside the hollow cylinder. Several limiting blocks are provided around the periphery of the silicone round tube. A protective shell is provided inside the threaded tube. A square groove is opened in the protective shell. A square block is provided in the square groove. Two pressure blocks are slidably installed in the square block.
[0007] Two sets of threaded assemblies, both located within the block, are used to drive the two pressure blocks to move up and down respectively.
[0008] By using a combination of threaded tubes, rubber pads, hollow cylinders, cylinders, silicone tubes, limit blocks, protective shells, square blocks, pressure blocks, and threaded assemblies, it is not necessary to fix the two conductors with insulating tape. They will not loosen even after long-term use in harsh environments, and there will be no reduction in insulation even in humid environments, which greatly improves the safety of power lines.
[0009] Optionally, the threaded assembly includes:
[0010] A threaded rod is disposed inside the block. The bottom end of the threaded rod passes through the pressure block and extends into the interior, while the top end of the threaded rod passes through the protective shell and extends to the outside, where a handle is fixedly installed. In this embodiment, rotating the two handles causes the two rotating blocks to rotate the two threaded rods respectively. Under the action of the threads, the two rotating threaded rods respectively drive the two pressure blocks to move downward. Subsequently, the two downward-moving pressure blocks respectively squeeze the conductor portions of the two wires.
[0011] Optionally, the threaded rod is rotatably connected to the block. In this embodiment, it is ensured that the threaded rod can rotate normally in the block.
[0012] Optionally, the threaded rod is threadedly connected to the protective shell. In this embodiment, it is ensured that the threaded rod can slide up and down inside the protective shell under the action of the thread.
[0013] Optionally, the threaded tube is tightly welded to one of the round tubes. In this embodiment, the structural stability of the threaded tube and one of the round tubes is ensured.
[0014] Optionally, the round tube is threadedly connected to the hollow cylinder. In this embodiment, it is ensured that, under the action of the thread, rotating the hollow cylinder can fix the hollow cylinder onto the round tube.
[0015] Optionally, several of the limiting blocks are fixed to one side of the circular tube by limiting rods. The two ends of the limiting rods are respectively precision welded to the limiting blocks and the circular tube. In this embodiment, the structural stability of the limiting rods, limiting blocks, and circular tubes is ensured.
[0016] Optionally, the number of the limiting blocks is at least one hollow cylinder. In this embodiment, it is ensured that when the silicone tube is squeezed by the limiting blocks, the silicone tube can be in close contact with the wire.
[0017] In summary, this utility model has the following beneficial effects: through the cooperation of threaded tube, rubber pad, hollow cylinder, cylinder, silicone tube, limiting block, protective shell, square block and pressure block and threaded assembly, it is not necessary to fix the two wires with insulating tape. It will not loosen even after long-term use in harsh environments, and there will be no reduction in insulation even in humid environments, which greatly improves the safety of power lines. Attached Figure Description
[0018] Figure 1 This is a schematic diagram of the overall structure of this utility model.
[0019] Figure 2 This is a detailed structural diagram of the hollow cylinder of this utility model.
[0020] Figure 3 This is a structural schematic diagram of the exploded view of the circular tube region of this utility model.
[0021] Figure 4 This is a detailed internal structural diagram of the protective shell of this utility model.
[0022] Figure 5 This is a cross-sectional structural diagram of the protective shell of this utility model.
[0023] Explanation of reference numerals in the attached figures:
[0024] 1. Round tube; 2. Rubber pad; 3. Threaded tube; 4. Hollow cylinder; 5. Cylinder; 6. Limiting block; 7. Limiting rod; 8. Silicone round tube; 9. Protective shell; 10. Square block; 11. Handle; 12. Threaded rod; 13. Pressure block; 14. Through groove; 15. Square groove. Detailed Implementation
[0025] The following is in conjunction with the appendix Figure 1-5 This application will be described in further detail.
[0026] Example 1:
[0027] Please refer to Figure 1-5 A protective structure for power lines, comprising:
[0028] A threaded tube 3 is fitted with a rubber pad 2. Two round tubes 1 are respectively arranged on both sides of the threaded tube 3. A hollow cylinder 4 is fitted on one end of the round tube 1. A cylinder 5 is fixedly installed on one side of the hollow cylinder 4. A through groove 14 is opened in the cylinder 5. A silicone round tube 8 is fixedly installed on one side of the round tube 1 and inside the hollow cylinder 4. Several limiting blocks 6 are arranged around the silicone round tube 8. A protective shell 9 is arranged inside the threaded tube 3. A square groove 15 is opened in the protective shell 9. A square block 10 is arranged in the square groove 15. Two pressure blocks 13 are slidably installed in the square block 10.
[0029] Two sets of threaded assemblies, both located within block 10, are used to drive the two pressure blocks 13 to move up and down respectively.
[0030] In this embodiment, through the cooperation of the threaded tube 3, rubber pad 2, hollow cylinder 4, cylinder 5, silicone tube 8, limiting block 6, protective shell 9, square block 10, pressure block 13, and threaded assembly, it is not necessary to fix the two wires with insulating tape. It will not loosen even after long-term use in harsh environments, and there will be no reduction in insulation even in humid environments, which greatly improves the safety of power lines.
[0031] The threaded assembly includes:
[0032] The threaded rod 12 is set inside the block 10. The bottom end of the threaded rod 12 passes through the pressure block 13 and extends into the interior, while the top end of the threaded rod 12 passes through the protective shell 9 and extends to the outside, and is fixedly installed with a handle 11.
[0033] In this embodiment, the two handles 11 are rotated, and the two rotating blocks 10 drive the two threaded rods 12 to rotate respectively. Under the action of the threads, the two rotating threaded rods 12 drive the two pressure blocks 13 to move downward respectively. Subsequently, the two downward-moving pressure blocks 13 squeeze the conductor portions of the two wires respectively.
[0034] The threaded rod 12 is rotatably connected to the block 10.
[0035] In this embodiment, it is ensured that the threaded rod 12 can rotate normally in the block 10.
[0036] The threaded rod 12 is threadedly connected to the protective shell 9.
[0037] In this embodiment, it is ensured that the rotating threaded rod 12 can slide up and down within the protective shell 9 under the action of the thread.
[0038] The threaded pipe 3 is tightly welded to one of the round pipes 1.
[0039] In this embodiment, the structure of the threaded tube 3 and one of the round tubes 1 is ensured to be stable.
[0040] The round tube 1 is threadedly connected to the hollow cylinder 4.
[0041] In this embodiment, it is ensured that, under the action of the thread, rotating the hollow cylinder 4 can fix the hollow cylinder 4 onto the round tube 1.
[0042] Several limiting blocks 6 are fixed to one side of the round tube 1 by limiting rods 7, and the two ends of the limiting rods 7 are precisely welded to the limiting blocks 6 and the round tube 1 respectively.
[0043] In this embodiment, the structural stability of the limiting rod 7, the limiting block 6, and the circular tube 1 is ensured.
[0044] The number of limit blocks 6 is at least 4 hollow cylinders.
[0045] In this embodiment, it is ensured that the silicone tube 8 can be in close contact with the wire when it is squeezed by several limiting blocks 6.
[0046] It is worth noting that the limiting rod 7 is made of low-carbon steel and has a certain degree of toughness, which can drive the limiting block 6 to squeeze the silicone tube 8.
[0047] The implementation principle of this utility model is as follows: Under the action of the thread, one of the round tubes 1 is rotated, causing it to slide out of the threaded tube 3, thus separating the two round tubes 1. Then, the hollow cylinders 4 on the two round tubes 1 are rotated respectively, causing them to separate from the two round tubes 1. Subsequently, two wires are passed through the hollow cylinders 4 and 5 and the limiting block 6 respectively, so that the two wires extend into the two round tubes 1. Then, the conductor parts of the two wires in the round tubes 1 are inserted into the blocks 10 from the left and right sides of the protective shell 9. Then, the two handles 11 are rotated, and the two rotating blocks 10 drive the two threaded rods 12 to rotate. Under the action of the thread, the two rotating threaded rods 12 drive the two pressure blocks 13 to move downward. Subsequently, the two downward-moving pressure blocks 13 squeeze the conductor parts of the two wires and press them apart. The tubes are fixed inside the block 10. Then, one of the round tubes 1 and the threaded tube 3 are aligned and rotated. Under the action of the thread, one of the round tubes 1 and the threaded tube 3 are fixed together. At the same time, the two round tubes 1 squeeze the rubber pad 2. Then, the two hollow cylinders 4 are aligned with the two round tubes 1 respectively and rotated. Under the action of the thread, the hollow cylinders 4 drive the cylinder 5 to move closer to the protective shell 9. This causes the inner wall of the through groove 14 to squeeze several limiting blocks 6 and move closer to the silicone round tube 8. Under the pressure of the limiting blocks 6, the silicone round tube 8 will shrink inward and squeeze onto the corresponding wire, thus fixing the two wires. The whole device eliminates the need to fix the two wires with insulating tape. It will not loosen even after long-term use in harsh environments. Even in humid environments, there will be no reduction in insulation, which greatly improves the safety of the power line.
[0048] The above are all preferred embodiments of this utility model, and are not intended to limit the scope of protection of this utility model. Therefore, all equivalent changes made to the structure, shape and principle of this utility model should be included within the scope of protection of this utility model.
Claims
1. A protective structure for power lines, characterized in that, include: A threaded tube (3) is fitted with a rubber pad (2). Two round tubes (1) are respectively provided on both sides of the threaded tube (3). A hollow cylinder (4) is fitted on one end of the round tube (1). A cylinder (5) is fixedly installed on one side of the hollow cylinder (4). A through groove (14) is opened in the cylinder (5). A silicone round tube (8) is fixedly installed on one side of the round tube (1) and inside the hollow cylinder (4). Several limiting blocks (6) are provided on the periphery of the silicone round tube (8). A protective shell (9) is provided inside the threaded tube (3). A square groove (15) is opened in the protective shell (9). A square block (10) is provided in the square groove (15). Two pressure blocks (13) are slidably installed in the square block (10). Two sets of threaded assemblies, both of which are located within the block (10) and are used to drive the two pressure blocks (13) to move up and down respectively.
2. A protective structure for an electric power line according to claim 1, characterized in that, The threaded assembly includes: A threaded rod (12) is provided inside the block (10). The bottom end of the threaded rod (12) passes through the pressure block (13) and extends into the interior, while the top end of the threaded rod (12) passes through the protective shell (9) and extends to the outside, and a handle (11) is fixedly installed thereon.
3. The protective structure for power lines according to claim 2, characterized in that, The threaded rod (12) is rotatably connected to the block (10).
4. The protective structure for electric power lines according to claim 2, wherein The threaded rod (12) is threadedly connected to the protective shell (9).
5. The protective structure for an electric power line according to claim 1, wherein The threaded tube (3) is tightly welded to one of the round tubes (1).
6. The protective structure for an electric power line according to claim 1, wherein The round tube (1) is threadedly connected to the hollow cylinder (4).
7. A protective structure for power lines according to claim 1, characterized in that, Several of the limiting blocks (6) are fixed to one side of the round tube (1) by limiting rods (7), and the two ends of the limiting rods (7) are precisely welded to the limiting blocks (6) and the round tube (1) respectively.
8. The protective structure for an electric power line according to claim 1, wherein The number of the aforementioned limiting blocks (6) is at least 4 hollow cylinders.