A cable combination insulator

Abstract

This application relates to the field of insulators, specifically disclosing a cable-assembly type insulator, which includes a column, sheds, and a support block fixed to the top of the column. The support block has a column top groove at its top and a column neck groove between its bottom and the sheds. A pressure block is provided on the support block, and the column is provided with a switching mechanism for changing the position of the pressure block and a locking mechanism for locking the pressure block. This application improves the convenience of cable fixing and reduces the difficulty of switching between top fixing and side fixing.

Description

Technical Field

[0001] This application relates to the field of insulators, and more particularly to a cable-insulator combination. Background Technology

[0002] An insulator is a device installed between conductors at different potentials or between a conductor and a grounding component, capable of withstanding voltage and mechanical stress. In overhead transmission or distribution lines, insulators are used to support conductors, isolate voltage, and control the electric field distribution. Common types include pin insulators, suspension insulators, and post insulators.

[0003] When connecting cables to post insulators, there are generally three methods: top fixing, side fixing, and terminal fixing. Top fixing is suitable for straight sections of the line where lateral offset is not required; this method requires the cable to be positioned directly above or nearly directly above the insulator. Side fixing is suitable for scenarios where the cable has bends, offsets, or needs to change direction; this method requires the cable to be close to the side of the insulator. Terminal fixing is often located at tension sections between towers, line termination points, and cable junctions; this method is used less frequently than the first two. When installing cables on insulators, binding or clamping methods are commonly used for fixation. For example, top fixing often uses the "figure-eight winding method," "double-loop reverse winding method," or special clamps; side fixing often uses the "continuous wrapping locking method," "lateral pressure binding method," or special clamps.

[0004] Regarding the aforementioned technologies, the inventors believe that the following drawbacks exist: Since a single clamp only corresponds to top fixing or side fixing, when the line direction needs to be changed or the fixing requirements need to be adjusted, it is necessary to find a clamp with the corresponding fixing method for the corresponding insulator model, resulting in poor adaptability and inconvenience in switching between top fixing and side fixing; if manual binding is used, the manual operation is complex and labor-intensive, and after binding, during the long-term use of the cable, the shaking of the cable can easily cause the binding wire to damage the insulation and even the conductor. Utility Model Content

[0005] To address the difficulty in switching between top and side fixation of the clamp, this application provides a cable combination insulator.

[0006] The cable-combined insulator provided in this application adopts the following technical solution: A cable-insulator assembly includes a column, a skirt, and a support block fixed to the top of the column. The top of the support block has a column top groove, and the bottom of the support block has a column neck groove between it and the skirt. A pressure block is provided on the support block, and the column is provided with a switching mechanism for switching the position of the pressure block and a locking mechanism for locking the pressure block.

[0007] Optionally, the locking mechanism includes a plurality of threaded rods disposed on the column and a locking nut threadedly connected to the threaded rods. The threaded rods pass through the pressure block, and the heads of the threaded rods and the locking nuts are respectively located at both ends of the pressure block.

[0008] Optionally, the switching mechanism includes a connecting rod fixed to the column, a rotating rod rotatably connected to the end of the connecting rod, and a fixing assembly for fixing the connecting rod.

[0009] Optionally, the fixing component includes a fixing block fixed to the connecting rod, a protrusion fixed to the rotating rod, and a plurality of grooves formed on the fixing block, wherein the protrusion and the grooves are inserted and adapted to each other.

[0010] Optionally, a fastening nut is threaded to the end of the connecting rod, and the fastening nut is located at the end of the rotating rod that is away from the fixed block.

[0011] Optionally, a protective box adapted to the locking nut is snapped onto the pressure block.

[0012] Optionally, the pressure block has a cable groove on the side near the cable.

[0013] In summary, this application includes at least one of the following beneficial technical effects: 1. By changing the position of the pressure block through the switching mechanism and locking the pressure block with the locking mechanism, the cable fixing process is relatively simple, and the switching between top fixing and side fixing is easy, reducing the types of tools and parts that workers need to carry. 2. When locking the pressure block is required, simply tighten the locking nut with an electric wrench or manual wrench to press the pressure block firmly onto the cable, thus securing the pressure block. The structure is simple, easy to maintain, and convenient to disassemble and assemble. 3. When the rotating rod needs to be locked, rotate the rotating rod so that the rotating rod undergoes a slight deformation at the protrusion under the action of the protrusion and the fixing block, so that the protrusion can smoothly enter the groove to initially fix the rotating rod. Then rotate the fastening nut so that the fastening nut and the fixing block firmly clamp the rotating rod. With the insertion of the protrusion and the groove, the fixation degree of the rotating rod is further improved, thereby improving the stability of the cable. 4. After the cable is secured, place the protective box over the pressure block to cover the locking nut, reducing the loosening of the locking nut due to cable movement over a long period of time. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the overall structure of an embodiment of this application; Figure 2 This is a cross-sectional structural schematic diagram used in this application to illustrate the support block, pressure block, shifting mechanism and locking mechanism; Figure 3 This is a schematic diagram of the overall structure when the side is fixed in this application.

[0015] Reference numerals: 1. Column; 11. Umbrella skirt; 12. Support block; 13. Column top groove; 14. Column neck groove; 2. Pressure block; 21. Wire groove; 3. Repositioning mechanism; 31. Connecting rod; 32. Rotating rod; 33. Fixing component; 331. Fixing block; 332. Protrusion; 333. Groove; 334. Fastening nut; 4. Locking mechanism; 41. Threaded rod; 42. Locking nut; 5. Protective box; 6. Cable. Detailed Implementation

[0016] The following is in conjunction with the appendix Figures 1-3 This application will be described in further detail.

[0017] This application discloses a cable-mounted composite insulator. (Refer to...) Figures 1-3 The cable-insulator combination includes a column 1, a skirt 11, and a support block 12 integrally formed on the top of the column 1. The top of the support block 12 has a column top groove 13, and the bottom of the support block 12 has a column neck groove 14 between it and the skirt 11. A pressure block 2 is provided on the support block 12. The column 1 is provided with a switching mechanism 3 for switching the position of the pressure block 2 and a locking mechanism 4 for locking the pressure block 2. A wire groove 21 is provided on the side of the pressure block 2 closest to the cable 6.

[0018] When it is necessary to fix the cable 6 at the top, the cable 6 is placed into the column top groove 13 of the support block 12. The pressure block 2 is positioned at the top of the support block 12 by the switching mechanism 3, and the pressure block 2 is fastened to the column 1 by the locking mechanism 4. At this time, the cable 6 is located between the column top groove 13 and the wire groove 21, and the wire groove 21 increases the contact area between the pressure block 2 and the cable 6, further improving the fixation degree of the cable 6. When it is necessary to fix the cable 6 at the side, the cable 6 is placed into the column neck groove 14. The pressure block 2 is adjusted by the switching mechanism 3 so that the wire groove 21 of the pressure block 2 is facing the cable 6. Then the pressure block 2 is locked by the locking mechanism 4. At this time, the cable 6 is in the side-fixed state. The fixing process of the cable 6 is relatively simple, and the switching between top fixation and side fixation is easy, reducing the types of tools and parts that the staff need to carry.

[0019] Reference Figure 1 and Figure 2 The locking mechanism 4 includes multiple threaded rods 41 mounted on the column 1 and locking nuts 42 threaded onto the threaded rods 41. The threaded rods 41 pass through the pressure block 2, with the heads of the threaded rods 41 and the locking nuts 42 located at opposite ends of the pressure block 2. When the pressure block 2 needs to be locked, simply tighten the locking nuts 42 using an electric or manual wrench to press the pressure block 2 firmly against the cable 6, thus securing the pressure block 2. The mechanism is simple in structure, easy to maintain, and convenient to assemble and disassemble.

[0020] Reference Figure 1 and Figure 2 The shifting mechanism 3 includes a connecting rod 31 fixed to the column 1, a rotating rod 32 rotatably connected to the end of the connecting rod 31, and a fixing assembly 33 for fixing the connecting rod 31. When it is necessary to shift the pressure block 2, the fixing assembly 33 is released from fixing the rotating rod 32, and then the pressure block 2 is rotated. At this time, the rotating rod 32 rotates on the connecting rod 31. When the pressure block 2 rotates to the designated position, the rotating rod 32 is fixed by the fixing assembly 33 to complete the shifting operation of the pressure block 2.

[0021] Reference Figure 2 The fixing component 33 includes a fixing block 331 fixed to the connecting rod 31, a fixing protrusion 332 fixed to the rotating rod 32, and a plurality of grooves 333 formed on the fixing block 331. The protrusion 332 and the groove 333 are inserted and adapted to each other. The end of the connecting rod 31 is threaded with a fastening nut 334. The fastening nut 334 is located at the end of the rotating rod 32 away from the fixing block 331. The rotating rod 32 can be rotated by forming a slot on the connecting rod 31 and a rotating hole on the rotating rod 32 that is embedded in the slot. There is a small gap between the rotating rod 32 and the fixing block 331. When the rotating rod 32 is forcibly rotated, the gap between the rotating rod 32 and the fixing block 331 can be widened by the protrusion 332 so that the protrusion 332 can be smoothly inserted into the groove 333.

[0022] When the rotating rod 32 needs to be locked, rotate the rotating rod 32 so that the rotating rod 32 undergoes a slight deformation at the protrusion 332 under the action of the protrusion 332 and the fixing block 331, so that the protrusion 332 can smoothly enter the groove 333 to initially fix the rotating rod 32. Then rotate the fastening nut 334 so that the fastening nut 334 and the fixing block 331 firmly clamp the rotating rod 32. With the insertion of the protrusion 332 and the groove 333, the fixation degree of the rotating rod 32 is further improved, thereby improving the stability of the cable 6.

[0023] Reference Figure 1 and Figure 2 A protective box 5, compatible with the locking nut 42, is snapped onto the pressure block 2. The protective box 5 has a slot on its side wall, and a locking block is fixed to the side wall of the pressure block 2. The side of the locking block away from the rotating rod 32 is inclined, and the side closer to the rotating rod 32 is straight. The locking block engages with the slot. After the cable 6 is secured, the protective box 5 is placed on the pressure block 2, covering the locking nut 42 and reducing the loosening of the locking nut 42 due to the shaking of the cable 6 over a long period.

[0024] The implementation principle of a cable combination insulator according to an embodiment of this application is as follows: When it is necessary to fix the cable 6 at the top, the cable 6 is placed into the column top groove 13 of the support block 12, the fastening nut 334 and the locking nut 42 are loosened, and the pressure block 2 is rotated to face the column top groove 13. During this process, the protrusion 332 is embedded in the groove 333. Then the locking nut 42 is tightened to make the pressure block 2 press the cable 6. Then the fastening nut 334 is tightened to improve the stability of the rotating rod 32. Finally, the protective box 5 is snapped onto the pressure block 2 to complete the installation process of top fixing. When it is necessary to fix the cable 6 at the side, the cable 6 is placed into the column neck groove 14. The pressure block 2 is adjusted by the switching mechanism 3 so that the wire groove 21 of the pressure block 2 is facing the cable 6. Then the locking nut 42 is tightened to lock the pressure block 2. At this time, the cable 6 is in the side fixing state. The fixing process of the cable 6 is relatively simple, and the switching between top fixing and side fixing is easy, reducing the types of tools and parts that workers need to carry.

[0025] The above are all preferred embodiments of this application and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. A cable-assembly insulator, comprising a column (1), a shed (11), and a support block (12) fixed to the top of the column (1), characterized in that: The top of the support block (12) is provided with a column top groove (13), and the bottom of the support block (12) and the umbrella skirt (11) are provided with a column neck groove (14). The support block (12) is provided with a pressure block (2), and the column (1) is provided with a shifting mechanism (3) for switching the position of the pressure block (2) and a locking mechanism (4) for locking the pressure block (2).

2. The cable-assembly insulator according to claim 1, characterized in that: The locking mechanism (4) includes a plurality of threaded rods (41) disposed on the column (1) and a locking nut (42) threadedly connected to the threaded rods (41). The threaded rods (41) pass through the pressure block (2), and the head of the threaded rods (41) and the locking nut (42) are respectively located at both ends of the pressure block (2).

3. The cable-insulator combination type according to claim 1, characterized in that: The switching mechanism (3) includes a connecting rod (31) fixed to the column (1), a rotating rod (32) rotatably connected to the end of the connecting rod (31), and a fixing assembly (33) for fixing the connecting rod (31).

4. A cable-insulator combination as described in claim 3, characterized in that: The fixing component (33) includes a fixing block (331) fixed to the connecting rod (31), a protrusion (332) fixed to the rotating rod (32), and a plurality of grooves (333) formed on the fixing block (331), wherein the protrusion (332) and the groove (333) are inserted and adapted to each other.

5. A cable-insulator combination as described in claim 4, characterized in that: The end of the connecting rod (31) is threaded with a fastening nut (334), which is located at the end of the rotating rod (32) away from the fixed block (331).

6. A cable-insulator combination as described in claim 2, characterized in that: The pressure block (2) is fitted with a protective box (5) that is compatible with the locking nut (42).

7. A cable-insulator combination as described in claim 1, characterized in that: The pressure block (2) has a wire groove (21) on the side near the cable (6).

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