Folded insulated power operating lever

Abstract

This utility model provides a foldable insulated power operating rod, belonging to the field of power equipment technology. The foldable insulated power operating rod includes an operating rod, a connecting rod, and a gripping rod; each connecting end of the insulated rod has an external thread; a sleeve is threaded onto the external thread of one of two adjacent insulated rods; the two adjacent insulated rods are fixedly connected by the sleeve thread; each connecting end of two adjacent insulated rods has a hinge block, and the hinge blocks are movably hinged to each other through a hinge member. This utility model has a simple structure, smooth operation, high reliability, and extends the service life of the connecting components; it ensures coaxiality during docking and fixation, reduces rotational tangential force, has high overall structural stability, is easy to carry and store, and improves the operational flexibility of the insulated operating rod. Through the physical protection and blocking structure of the retaining ring and the combined action of the hydrophobic layer of the hydrophobic material, the spread of water film on the surface of the insulated rod is blocked, and its surface insulation performance is improved.

Description

Technical Field

[0001] This utility model belongs to the field of power equipment technology, specifically relating to a folding insulated power operating rod. Background Technology

[0002] Insulated operating rods are indispensable tools in power systems, widely used in live-line working, live-line inspection, and live-line maintenance. Their core function is to isolate workers from live equipment using insulating materials, ensuring operational safety. However, traditional insulated operating rods suffer from fixed lengths and are inconvenient to carry and store, limiting their application in complex environments.

[0003] With the increasing demands for power system operation and maintenance and the continuous advancement of technology, folding insulated power operating rods have emerged. A Chinese patent application with application number CN201621081323.9 discloses a power rod device that achieves folding by directly hinged at the threaded connection, breaking through the length limitation of traditional insulated operating rods. However, with the increase in the number of times it is folded, the hinge at the threaded connection becomes loose, and at this time, the threaded connections at the ends of the rods that are connected to each other are prone to misalignment. Utility Model Content

[0004] This invention addresses the technical problem of unreliable connection of existing insulating rods by providing a folding insulating electric operating rod.

[0005] To solve the above-mentioned technical problems, the technical solution adopted by this utility model is as follows:

[0006] A folding insulated power operating rod includes multiple interconnected insulated rods; the connecting ends of two adjacent insulated rods are provided with external threads and are connected by an internally threaded sleeve.

[0007] Furthermore, each of the two adjacent connecting ends of the insulating rod is provided with a hinge block, and the hinge blocks are movably hinged to each other through a hinge member.

[0008] Furthermore, the length between the two hinge axes connecting the hinge member and the hinge block is not less than the sum of the maximum radius lengths of the two adjacent hinged insulating rods.

[0009] Furthermore, bearings are fixedly installed in the connecting ends of the two adjacent insulating rods, and the hinge block is coaxially rotatably connected to the insulating rod through the bearings.

[0010] Furthermore, an externally protruding retaining ring is fixedly provided on the insulating rod at the externally threaded end away from the hinge.

[0011] Furthermore, a magnet is fixedly installed inside the insulating rod; the magnet is a multi-pole radially magnetized ring magnet; when the insulating rod is folded, it is fixed by mutual attraction through the magnet.

[0012] Furthermore, an energy-absorbing buffer is fixedly provided at the magnet.

[0013] Furthermore, the retaining ring has an annular groove on its circumferential side surface.

[0014] Furthermore, the side of the retaining ring closest to the operating end of the operating rod is designed with rounded corners to match the side of the insulating rod.

[0015] Furthermore, a hydrophobic layer is fixedly provided on the outside of the insulating rod in a layered manner.

[0016] Preferably, the hydrophobic layer is composed of hydrophobic materials such as epoxy resin, silicone rubber, and polytetrafluoroethylene (PTFE) with a contact angle θ > 90°.

[0017] Compared with existing technologies, this embodiment features a simple structure, smooth operation, high reliability, and extended service life of connecting components. It ensures coaxiality during docking and fixation, reduces rotational tangential forces, and boasts high overall structural stability, lowering the risk of structural deformation. Furthermore, its assembly and folding are very convenient, resulting in a smaller folded size for easy carrying and storage, thus improving the operational flexibility of the insulating operating rod. The physical protection and blocking structure of the retaining ring, combined with the hydrophobic layer of the hydrophobic material, effectively prevents the spread of moisture on the surface of the insulating rod and enhances its surface insulation performance. This prevents rainwater from forming a continuous water film on the insulating power operating rod, avoiding problems such as decreased insulation performance, reduced resistance, and increased leakage current, thereby reducing the risk of safety accidents. Attached Figure Description

[0018] The present invention will now be described in further detail with reference to the accompanying drawings.

[0019] Figure 1 : Schematic diagram of the folded structure of Embodiment 1 of this utility model;

[0020] Figure 2 : Schematic diagram of the extended state structure of Embodiment 1 of this utility model;

[0021] Figure 3 : A schematic diagram of the axial cross-sectional structure of this utility model in its folded state;

[0022] Figure 4 : A schematic diagram of the hinge joint of this utility model;

[0023] Figure 5 : A schematic diagram of the radial cross-sectional structure of the magnet on the insulating rod of this utility model;

[0024] Figure 6 : Schematic diagram of the structure of the retaining ring in Embodiment 2 of this utility model;

[0025] Among them, 1-insulating rod, 11-external thread, 12 sleeve, 5-hinged block, 51-hinged part, 52-hinged shaft, 6-bearing, 7-retaining ring, 71-circular arc groove, 8 magnet, 9-energy-absorbing buffer part. Detailed Implementation

[0026] To better understand this utility model, the following embodiments further illustrate its content, but the scope of protection of this utility model is not limited to the embodiments described below. Numerous specific details are set forth in the following description to provide a more thorough understanding of this utility model. However, it will be apparent to those skilled in the art that this utility model can be practiced without one or more of these details.

[0027] Example 1, see Figure 1-5 ,

[0028] A folding insulated power operating rod includes a plurality of interconnected insulated rods 1; the connecting ends of two adjacent insulated rods 1 are provided with external threads 11 and are connected by internal threaded sleeves 12.

[0029] Furthermore, each of the two adjacent insulating rods 1 is provided with a hinge block 5 at its connecting end, and the hinge blocks 5 are movably hinged to each other through hinge members 51. This design results in a simpler and more concise overall structure, with tight connections between components, avoiding structural fatigue caused by relative movement and friction of the connecting parts, reducing wear and damage caused by frequent folding and use, and further reducing the difficulties in disassembly and assembly due to structural complexity, as well as the structural safety risks caused by misaligned threads.

[0030] Preferably, the length between the two hinge shafts 52 connecting the hinge member 51 and the hinge block 5 is equal to the sum of the maximum radius lengths of the two adjacent hinged insulating rods 1.

[0031] Optionally, the length between the two hinge shafts 52 connecting the hinge member 51 and the hinge block 5 is greater than the sum of the maximum radius lengths of the two adjacent hinged insulating rods 1.

[0032] When the sleeve 12 is used to rotate and thread-connect two adjacent insulating rods 1, the hinge block 5 and the hinge block position of the hinge member 51 bear a large rotational tangential force, affecting the service life. Furthermore, bearings 6 are fixedly installed at the connection ends of the two adjacent insulating rods 1, and the hinge block 5 is coaxially rotatably connected to the insulating rod 1 through the bearings 6. The rolling structure of the bearings 6 converts the aforementioned rotational tangential force into rolling friction, effectively dispersing the force and greatly reducing the impact of the rotational tangential force on the hinge block position when the sleeve 12 is used to thread-connect the two insulating rods 1, thereby enhancing the stability of the overall structure and improving its service life. Moreover, the design of this bearing 6 allows the insulating rods 1 to be folded without selecting a fixed folding direction, making the folding operation more convenient and faster. It also further optimizes the folding and storage performance; the folded structure is more compact because the rotation is more precise and there is no deviation, and the folded insulating rods 1 have a smaller bundled volume, facilitating transportation and storage.

[0033] Furthermore, a protruding retaining ring 7 is fixedly provided on the insulating rod 1 at the external threaded end away from the hinge 51. The retaining ring 7 can limit the movement of the sleeve 12 and can also form a corresponding abutment structure with the sleeve 12 to enhance the frictional pressure of its threaded connection, making the connection of the insulating rod 1 more stable.

[0034] To enable the folded insulating rod 1 to be quickly fixed along its long axis, a magnet 8 is fixedly installed inside the insulating rod; the magnet 8 is a multi-pole radially magnetized ring magnet; the insulating rods are fixed by mutual attraction through the magnet 8 when folded. The use of a multi-pole radially magnetized ring magnet makes the circumferential direction of the folded insulating rod independent, and in conjunction with the bearing 6, it can achieve the following: no matter how much the two adjacent insulating rods 1 rotate relative to each other, complementary N / S pole pairs can always be found to generate attractive forces for magnetic fixation; moreover, its axial magnetic field is closed, the magnetic field radiates along the radial direction, and the central region is weak, making it suitable for nesting inside a narrow insulating rod.

[0035] Multipole radially magnetized ring magnets are typically made of brittle materials (such as neodymium iron boron) and are frequently subjected to external energy impacts generated by the collision of the insulating rod 1 when it is folded. The magnet 8 may crack or shatter due to stress concentration. Furthermore, an energy-absorbing buffer portion 9 is fixedly provided at the magnet 8. The energy-absorbing buffer portion 9 can be an elastic energy-absorbing buffer material such as silicone, rubber, or TPE.

[0036] In use, extend each section of the insulating rod 1, and fix the sleeve 12 at each hinge point to the external thread provided on the side of the connection end of the two adjacent insulating rods 1; after assembly, hold the insulating rod 1 at the gripping end and use the operating rod to perform electrical operation activities; when the operation is completed, loosen the sleeve 12 to disconnect the threaded connection between the two adjacent insulating rods 1, at which point each section of the insulating rod 1 can be quickly folded and fixed together under the action of the multi-pole radial magnetized annular magnet 8 and the bearing 6.

[0037] Compared with the prior art, this embodiment has a simple structure, smooth operation, high reliability, and extends the service life of the connecting parts; it ensures coaxiality during docking and fixing, reduces rotational tangential force, and has high overall structural stability, reducing the risk of structural deformation; moreover, it is very convenient to assemble and fold, and the folded volume is smaller, making it easier to carry and store, and improving the operational flexibility of the insulated operating rod.

[0038] Example 2, see Figure 6 This embodiment is an improvement based on embodiment 1.

[0039] In special rainy conditions for live-line work, rainwater may form a continuous water film containing impurities on the surface of the insulating operating rod. This reduces the surface resistance of the insulating rod, potentially leading to electric shock accidents. Therefore, the retaining ring 7 is further provided with annular grooves 71 on its circumferential side. The retaining ring 7 protruding outwards on the insulating rod 1 and the annular grooves 71 on its side function to divide the water film and block the continuous conductive path.

[0040] Furthermore, the side of the retaining ring 7 near the operating end 21 of the operating rod is designed with rounded corners to match the side of the insulating rod 1. This rounded corner serves as a guide rounded corner, accelerating the drainage and sliding of rainwater from the retaining ring and reducing the time it remains on the insulating rod 1.

[0041] Furthermore, the insulating rod 1 is externally fixed with a hydrophobic layer composed of a hydrophobic material with a contact angle θ > 90°.

[0042] Optionally, the hydrophobic material is one of epoxy resin, silicone rubber, and polytetrafluoroethylene (PTFE). The hydrophobic layer composed of this material utilizes its low surface energy to cause rainwater to collect into beads and roll off, further preventing the formation of a continuous water film.

[0043] Compared with existing technologies, this embodiment, through the combined effect of a retaining ring physical protection structure and a hydrophobic layer of hydrophobic material, prevents the spread of moisture on the surface of the insulating rod and enhances its surface insulation performance. This prevents rainwater from forming a continuous water film on the insulated power operating rod, avoiding problems such as decreased insulation performance, reduced resistance, and increased leakage current, thereby reducing the risk of safety accidents.

[0044] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of this utility model and are not intended to limit it. Any other modifications or equivalent substitutions made by those skilled in the art to the technical solution of this utility model, as long as they do not depart from the spirit and scope of the technical solution of this utility model, should be covered within the scope of the claims of this utility model.

[0045] The above are merely preferred embodiments of this utility model and are not intended to limit the scope of this utility model. Various modifications and variations can be made to this utility model by those skilled in the art. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A folding insulated electric operating rod, comprising a plurality of interconnected insulated rods; characterized in that: The connecting ends of two adjacent insulating rods are provided with external threads and are connected by internal threaded sleeves; the connecting ends of two adjacent insulating rods are provided with hinge blocks, which are movably hinged to each other by hinge members; bearings are fixedly provided inside the connecting ends of two adjacent insulating rods, and the hinge blocks are rotatably connected to the insulating rods through the bearings.

2. A folding insulated electric operating rod according to claim 1, characterized in that: The length between the two hinge shafts connecting the hinge member and the hinge block is not less than the sum of the maximum radius lengths of the two adjacent insulating rods.

3. A folding insulated electric operating rod according to claim 2, characterized in that: An externally protruding retaining ring is fixedly provided on the insulating rod at the externally threaded end away from the hinge.

4. A folding insulated electric operating rod according to claim 1 or 3, characterized in that: A magnet is fixedly installed inside the insulating rod; the magnet is a multi-pole radially magnetized ring magnet; when the insulating rod is folded, it is fixed by mutual attraction through the magnet.

5. A folding insulated electric operating rod according to claim 4, characterized in that: An energy-absorbing buffer is fixedly installed at the magnet.

6. A folding insulated electric operating rod according to claim 3, characterized in that: The retaining ring has an annular groove on its circumferential side.

7. A folding insulated electric operating rod according to claim 6, characterized in that: The side of the retaining ring closest to the operating end of the operating rod is designed with rounded corners to the side of the insulating rod.

8. A folding insulated electric operating rod according to claim 7, characterized in that: The insulating rod is provided with a hydrophobic layer on the outside.

9. A folding insulated electric operating rod according to claim 8, characterized in that: The hydrophobic layer is composed of a hydrophobic material with a contact angle θ > 90°.

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