Fixing device for fixing wire of column insulator based on insulating rod operation method

Abstract

The invention discloses a fixing device for fixing a lead on a column insulator based on an insulating rod operation method, which comprises a mounting base connected to the top of the insulator, a clamping block assembly is arranged on the mounting base, the mounting base comprises a first enclasping block and a second enclasping block which are hinged and are used for enclosing to form a cavity for accommodating the top of the insulator, and the clamping block assembly is arranged on the mounting base. An adjusting part is arranged on the first holding block and the second holding block in a penetrating manner and is used for adjusting the distance between the first holding block and the second holding block so as to clamp the top of the insulator; each clamping block assembly comprises a first clamping block and a second clamping block which are oppositely arranged, and a retaining ring bolt is arranged on the first clamping block and the second clamping block in a penetrating mode and used for adjusting the size of a containing cavity between the clamping block assemblies so as to clamp a wire arranged in the clamping block assemblies in a penetrating mode. The device has the advantages of simple structure, high reliability, high applicability, convenience in installation and flexibility in maintenance.

Description

Technical Field

[0001] This invention relates to the field of power equipment technology, and specifically to a fixing device for fixing conductors using a post-type insulator based on the insulating rod operation method. Background Technology

[0002] Currently, in my country's power system, there are two main methods for fixing conductors to post insulators in overhead distribution lines. The first is the traditional manual binding method, where operators use metal wire to wrap and bind the conductors. Specifically, 2.5mm diameter aluminum binding wire is used for bare conductors, and 2.5mm diameter plastic-coated copper binding wire is used for insulated conductors, fixing the conductors in the grooves of the insulator. The second method uses conductor fixing clamps, a specialized power hardware, to replace the binding wire. Existing technologies have the following shortcomings: First, the traditional manual binding method has poor resistance to mechanical stress. The binding points are prone to loosening when the conductor expands and contracts due to heat or swings in strong winds. Long-term stress can easily lead to fatigue and breakage of the binding wire, which in turn can cause the conductor to shift or even fall off, resulting in insufficient long-term operational reliability. Secondly, the fixing effect is highly dependent on the manual skills of the construction workers. If the number of wrapping turns and the force are not properly controlled, it will create safety hazards and make it difficult to guarantee the uniformity of installation quality. Third, the binding wires are exposed to the outdoors for a long time, and are easily affected by environmental factors such as sun exposure, rain, and dirt, which accelerates corrosion and aging. In harsh environments such as coastal areas and industrial areas, the service life is significantly shortened. Fourth, the procurement cost of conductor fixing clamps is much higher than that of traditional binding wires, leading to increased initial investment. Furthermore, the installation requirements are stringent; the clamps must precisely match the conductor cross-section and insulator model. Installation that is too loose or too tight may damage the conductor, placing higher demands on the selection and operational precision of construction personnel. During maintenance and repair, the clamps lack flexibility, are difficult to disassemble, and are less convenient to replace than binding wires. Fifth, the maintenance and replacement of the two types of fixed devices mentioned above currently mainly rely on power outage operations, which affects the reliability of power supply. If the insulated glove method is used for live-line work, it faces problems such as complex procedures, numerous tools and insulating protective equipment required, and a large shielding area, resulting in high physical exertion for workers, and it is often difficult to implement in complex terrain environments such as hills and mountains. Summary of the Invention

[0003] The technical problem to be solved by the present invention is to overcome the shortcomings of the prior art and provide a fixing device for fixing conductors of column insulators based on the insulating rod operation method, which is simple in structure, highly reliable, widely applicable, easy to install and flexible in maintenance.

[0004] To solve the above-mentioned technical problems, the present invention adopts the following technical solution: A fixing device for fixing conductors on a post-type insulator based on the insulating rod method includes a mounting base for connecting to the top of the insulator. The mounting base is provided with a clamping block assembly. The mounting base includes a hinged first clamping block and a second clamping block for forming a cavity to accommodate the top of the insulator. An adjustment part is provided on the first clamping block and the second clamping block for adjusting the distance between the first clamping block and the second clamping block to clamp the top of the insulator. The clamping block assembly includes a first clamping block and a second clamping block arranged opposite each other. A retaining bolt is provided on the first clamping block and the second clamping block for adjusting the size of the accommodating cavity between the clamping block assemblies to clamp the conductor passing through the clamping block assembly.

[0005] As a further improvement to the above technical solution: the mounting base is fixedly connected to the second clamping block, the head of the buckle bolt abuts against the outside of the first clamping block, and the end passes through the second clamping block; when the buckle bolt is tightened, the head of the buckle bolt acts as a fulcrum to push the first clamping block to move towards the second clamping block, so that the two together grip the wire passing through them.

[0006] As a further improvement to the above technical solution: the mounting base is fixedly connected to the second clamping block, the head of the buckle bolt abuts against the outside of the second clamping block, and the end passes through the first clamping block; when the buckle bolt is tightened, the head of the buckle bolt acts as a fulcrum, pulling the first clamping block towards the second clamping block, so that the two together hold the wire passing through them tightly.

[0007] As a further improvement to the above technical solution: the retaining bolt is provided with a universal joint for adjusting the orientation of the retaining bolt.

[0008] As a further improvement to the above technical solution: the adjusting part is an adjusting screw, and the first clamping block is provided with a screw hole that cooperates with the adjusting screw so that the adjusting screw can pass through to adjust the distance between the first clamping block and the second clamping block.

[0009] As a further improvement to the above technical solution: an anti-loosening washer is provided between the adjusting screw and the screw hole.

[0010] As a further improvement to the above technical solution: the first clamping block and the second clamping block are a single-claw clamping block and a double-claw clamping block, respectively.

[0011] As a further improvement to the above technical solution: the inner sides of the first clamping block and the second clamping block are provided with buffer parts.

[0012] As a further improvement to the above technical solution: the buffer part is an elastic pad that is fixedly attached to the inner side of the first clamping block and the second clamping block.

[0013] As a further improvement to the above technical solution: the elastic pad is made of rubber or silicone.

[0014] Compared with existing technologies, the advantages of this invention are as follows: This invention discloses a fixing device for fixing conductors on column-type insulators based on the insulating rod method. By setting an adjustable mounting base to clamp the top of the insulator, it can be applied to various insulator sizes. Furthermore, by setting an adjustment part, the first clamping block and the second clamping block can be moved closer or further away using an insulating operating rod or an insulating gun rod. The operator can tighten the mounting base without directly contacting the device. By setting an adjustable clamping block assembly to clamp the conductor, it can be applied to various conductor sizes. Furthermore, by setting a retaining bolt, the first clamping block and the second clamping block can be moved closer or further away using an insulating operating rod or an insulating gun rod. The operator can fix the conductor by clamping the conductor without directly contacting the device and the conductor. This allows for quick and safe fixing of the device and conductor without interrupting power (using the insulating rod method), overcoming the disadvantages of traditional live-line binding operations, such as complex procedures, cumbersome shielding, and high physical exertion. The design of the mounting base and clamping block assembly can effectively resist external forces on the conductor in various directions (such as vertical tension and horizontal wind load), greatly improving the reliability and service life of the device. The adjustable design is suitable for insulators and conductors of various sizes, offering high versatility. The mounting base can be easily disassembled and reused thanks to the adjustable mechanism. When insulator maintenance or replacement is required, the device can be removed simply by loosening the bolts, significantly reducing maintenance costs and operation time. Attached Figure Description Figure 1 This is a schematic diagram of a first embodiment of a fixing device for fixing conductors using a post-type insulator based on the insulating rod operation method of the present invention.

[0015] Figure 2 This is a schematic diagram of a second embodiment of the fixing device for fixing conductors using a post-type insulator based on the insulating rod operation method of the present invention.

[0016] The labels in the diagram represent: 1. First clamping block; 2. Second clamping block; 3. Universal joint; 4. First clamping block; 5. Clamping bolt; 6. Screw hole; 7. Second clamping block; 8. Adjustment part. Detailed Implementation

[0017] The present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments.

[0018] In the description of this invention, it should be understood that the terms "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing this application and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this application.

[0019] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this application, "multiple" means two or more, unless otherwise explicitly specified.

[0020] In this invention, unless otherwise explicitly specified and limited, the terms "assembly," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this application according to the specific circumstances.

[0021] Example 1 like Figure 1 As shown, the fixing device for fixing conductors of column insulators based on the insulating rod operation method in this embodiment includes a mounting base for connecting to the top of the insulator. The mounting base is provided with a clamping block assembly. The mounting base includes a hinged first clamping block 4 and a second clamping block 7 for enclosing and forming a cavity to accommodate the top of the insulator. An adjustment part 8 is provided on the first clamping block 4 and the second clamping block 7 for adjusting the distance between the first clamping block 4 and the second clamping block 7 to clamp the top of the insulator. The clamping block assembly includes a first clamping block 1 and a second clamping block 2 arranged opposite to each other. A retaining bolt 5 is provided on the first clamping block 1 and the second clamping block 2 for adjusting the size of the accommodating cavity between the clamping block assemblies to clamp the conductor passing through the clamping block assembly.

[0022] The specific operating principle of the fixing device for fixing conductors using post-type insulators based on the insulating rod construction method is as follows: In use, firstly, the mounting base is placed on top of the insulator, and the hinged first clamping block 4 and second clamping block 7 are positioned opposite each other on top of the insulator; then, the adjusting part 8 is adjusted so that the first clamping block 4 and second clamping block 7 are close together to clamp the top of the insulator; further, the conductor is passed between the first clamping block 1 and the second clamping block 2 of the clamping block assembly; then, the retaining bolt 5 is rotated so that the first clamping block 1 and the second clamping block 2 clamp the conductor passed through the clamping block assembly.

[0023] Through the aforementioned specialized scientific design, this fixing device for securing conductors using a column-type insulator based on the insulating rod method offers the following advantages: By providing an adjustable mounting base that grips the top of the insulator, it can accommodate various insulator sizes. Furthermore, the adjustable part 8 allows for the use of an insulating operating rod or an insulating gun rod to move the first clamping block 4 and the second clamping block 7 closer together or further apart, enabling operators to tighten the mounting base without direct contact with the device. The adjustable clamping block assembly clamps the conductor, accommodating various conductor sizes. Furthermore, the buckle bolt 5 allows for the use of an insulating operating rod or an insulating gun rod to move the first clamping block 1 and the second clamping block 2 closer together or further apart, allowing operators to secure the conductor without direct contact with the device or the conductor. This enables rapid and safe fixing of the device and conductor without power interruption (using the insulating rod method), overcoming the drawbacks of traditional live-line binding operations, such as complex procedures, cumbersome shielding, and high physical exertion. The design of the mounting base and clamping block assembly effectively resists external forces on the conductor in various directions (such as vertical tension and horizontal wind load), significantly improving the reliability and service life of the device. The adjustable design is suitable for insulators and conductors of various sizes, offering high applicability. The mounting base can be easily disassembled and reused thanks to the adjustment mechanism 8. When insulator maintenance or replacement is required, the device can be removed by loosening the bolts, significantly reducing maintenance costs and operation time.

[0024] In this embodiment, the mounting base is fixedly connected to the second clamping block 2. The head of the retaining bolt 5 abuts against the outside of the first clamping block 1, and the end passes through the second clamping block 2. When the retaining bolt 5 is tightened, the head of the retaining bolt 5 acts as a fulcrum, pushing the first clamping block 1 towards the second clamping block 2, so that both clamping blocks together grip the wire passing through them. The retaining bolt 5 creates a mechanical self-locking effect. External vibrations and dynamic loads will not cause the first clamping block 1 and the second clamping block 2 to loosen; instead, they will clamp them even tighter, greatly improving the reliability of long-term operation. The gripping action causes the first clamping block 1 and the second clamping block 2 to form multi-point, non-uniform pressure on the wire, greatly increasing the friction between the first clamping block 1 and the second clamping block 2 and the wire. This provides a strong gripping force for the wire, effectively resisting longitudinal slippage and detachment, and greatly improving the reliability of the device.

[0025] In this embodiment, a universal joint 3 is provided on the retaining bolt 5 for adjusting the orientation of the retaining bolt 5. During use, the angle of the retaining bolt 5 is adjusted via the universal joint 3 to suit the operation of the insulated operating rod or insulated firing gun rod, making live operation more convenient. When the retaining bolt 5 is not being used for adjustment, the universal joint 3 positions the retaining bolt 5 downwards to prevent loosening and further enhance safety.

[0026] In this embodiment, the adjusting part 8 is an adjusting screw, and the first clamping block 4 is provided with a screw hole 6 that cooperates with the adjusting screw so that the adjusting screw can pass through to adjust the distance between the first clamping block 4 and the second clamping block 7. The other ends of the first clamping block 4 and the second clamping block 7 are connected by a hinge shaft. When the adjusting screw applies an outward pushing force in the middle position, this force will force the first clamping block 4 and the second clamping block 7 to rotate around the rear hinge shaft, causing the openings at their front ends to synchronously close inward. This avoids uneven force on the insulator or device skew that may be caused by unilateral clamping, ensures uniform distribution of clamping force, and improves the stability and reliability of installation.

[0027] In this embodiment, an anti-loosening washer is provided between the adjusting screw and the screw hole 6. The loosening washer further enhances the reliability and stability of the connection between the first clamping block 4 and the second clamping block 7.

[0028] In this embodiment, the first clamping block 1 and the second clamping block 2 are a single-claw clamping block and a double-claw clamping block, respectively. In this embodiment, the first clamping block 1 is a single-claw clamping block and the second clamping block 2 is a double-claw clamping block. In other embodiments, the first clamping block 1 may be a double-claw clamping block and the second clamping block 2 a single-claw clamping block; such simple variations are all within the protection scope of this invention. The cross-design of the single-claw and double-claw clamping blocks allows for adaptation to different wire diameters, improving the adaptability of the device.

[0029] In this embodiment, the inner sides of the first clamping block 1 and the second clamping block 2 are provided with buffer portions to prevent damage to the wires caused by excessive adjustment of the retaining bolt 5.

[0030] In this embodiment, the buffer part is an elastic pad that is fixedly attached to the inner side of the first clamping block 1 and the second clamping block 2, which is easy to replace and maintain.

[0031] In this embodiment, the elastic pad is made of rubber or silicone, which is low in cost.

[0032] Example 2 like Figure 2As shown, the other parts of this embodiment are the same as those in Embodiment 1, except that in this embodiment, the mounting base is fixedly connected to the second clamping block 2, the head of the retaining bolt 5 abuts against the outside of the second clamping block 2, and the end passes through the first clamping block 1. When tightening the retaining bolt 5, the head of the retaining bolt 5 acts as a fulcrum, pulling the first clamping block 1 towards the second clamping block 2 so that both clamping blocks together hold the wire passing through them tightly. When tightening the retaining bolt 5 begins, the head of the bolt acts as a fixed fulcrum, pressing tightly against the second clamping block 2. As the bolt is rotated, its threaded portion continuously screws into the threaded hole of the first clamping block 1. This screwing action generates a strong pulling force, pulling the first clamping block 1 towards the second clamping block 2, which acts as a fulcrum. During the process of the first clamping block 1 being pulled towards the second clamping block 2, the two clamping surfaces close in parallel, evenly holding the wire located therein from both sides. In this structure, the retaining bolt 5 mainly bears pure tensile stress, which allows the strength of the bolt to be fully utilized, making the structure more reliable and less prone to bolt failure. When the conductor is subjected to vibration or attempts to move outward, a force is applied that separates the two clamps. This force is directly converted into an additional tensile force on the retaining bolt 5. This is completely consistent with the preload direction of the retaining bolt 5, which means that the retaining bolt 5 will not loosen under dynamic load, but will instead become tighter, forming excellent vibration-resistant self-locking characteristics and greatly improving the reliability of the device.

[0033] Example 3 The method of using the fixing device for fixing conductors with post-type insulators based on the insulating rod construction method is as follows: S1. Voltage detection and shielding: The operator climbs the pole to the work point, checks the conductors and insulators for voltage, and after confirming that there is no voltage, uses insulating shielding tools to shield the conductors and insulators. S2. Installation of Insulating Crossarm and Load Transfer: Install the insulating crossarm on the pole, disconnect the conductor from the original insulator, and transfer the load of the conductor to the insulating crossarm. S3. Install the fixing device: Transfer the post insulator conductor fixing device to the pole and install it on the top of the insulator using the insulating operating rod. Adjust the adjusting part 8 to make the first clamping block 4 and the second clamping block 7 rotate around the rear hinge axis so that the openings at their front ends synchronously close inward to clamp the top of the insulator. S4. Wire fixing and removal tools: Transfer the wire on the insulating crossarm and place it in the clamping block assembly of the insulator wire fixing device. Use the insulating operating rod to rotate the buckle bolt 5 to push the first clamping block 1 to the second clamping block 2 so that the first clamping block 1 and the second clamping block 2 hold the wire passing between them. Remove the insulating crossarm and insulating shielding tools in sequence.

[0034] While the present invention has been disclosed above with reference to preferred embodiments, it is not intended to limit the invention. Any person skilled in the art can make many possible variations and modifications to the technical solutions of the present invention, or modify them into equivalent embodiments, without departing from the scope of the present invention. Therefore, any simple modifications, equivalent changes, and modifications made to the above embodiments based on the technical essence of the present invention, without departing from the scope of the present invention, should fall within the protection scope of the present invention.

Claims

1. A fixing device for fixing conductors of post-type insulators based on the insulating rod construction method, characterized in that: The device includes a mounting base for connecting to the top of an insulator, the mounting base having a clamping block assembly, the mounting base including a hinged first clamping block (4) and a second clamping block (7) for enclosing and forming a cavity to accommodate the top of the insulator, an adjustment part (8) passing through the first clamping block (4) and the second clamping block (7) for adjusting the distance between the first clamping block (4) and the second clamping block (7) to clamp the top of the insulator; the clamping block assembly includes a first clamping block (1) and a second clamping block (2) arranged opposite to each other, a retaining bolt (5) passing through the first clamping block (1) and the second clamping block (2) for adjusting the size of the cavity between the clamping block assemblies to clamp the conductor passing through the clamping block assembly.

2. The fixing device for fixing conductors of post-type insulators based on the insulating rod operation method according to claim 1, characterized in that: The mounting base is fixedly connected to the second clamping block (2). The head of the buckle bolt (5) abuts against the outside of the first clamping block (1), and the end passes through the second clamping block (2). When the buckle bolt (5) is tightened, the head of the buckle bolt (5) acts as a fulcrum to push the first clamping block (1) toward the second clamping block (2) so that the two together grip the wire passing through them.

3. The fixing device for fixing conductors of post-type insulators based on the insulating rod operation method according to claim 1, characterized in that: The mounting base is fixedly connected to the second clamping block (2). The head of the buckle bolt (5) abuts against the outside of the second clamping block (2), and the end passes through the first clamping block (1). When the buckle bolt (5) is tightened, the head of the buckle bolt (5) acts as a fulcrum, pulling the first clamping block (1) toward the second clamping block (2) so that the two together hold the wire passing through them tightly.

4. The fixing device for fixing conductors of post insulators based on the insulating rod operation method according to claim 2, characterized in that: The retaining bolt (5) is provided with a universal joint (3) for adjusting the orientation of the retaining bolt (5).

5. The fixing device for fixing conductors of post insulators based on the insulating rod operation method according to claim 1, characterized in that: The adjustment part (8) is an adjustment screw. The first clamping block (4) is provided with a screw hole (6) that cooperates with the adjustment screw so that the adjustment screw can pass through to adjust the distance between the first clamping block (4) and the second clamping block (7).

6. The fixing device for fixing conductors of post insulators based on the insulating rod operation method according to claim 5, characterized in that: An anti-loosening washer is provided between the adjusting screw and the screw hole (6).

7. The fixing device for fixing conductors of post insulators based on the insulating rod operation method according to claim 1, characterized in that: The first clamping block (1) and the second clamping block (2) are a single-claw clamping block and a double-claw clamping block, respectively.

8. The fixing device for fixing conductors of post insulators based on the insulating rod operation method according to claim 7, characterized in that: The first clamping block (1) and the second clamping block (2) are provided with a buffer section on their inner sides.

9. The fixing device for fixing conductors of post insulators based on the insulating rod operation method according to claim 8, characterized in that: The buffer part is an elastic pad that is fixedly attached to the inner side of the first clamping block (1) and the second clamping block (2).

10. The fixing device for fixing conductors of post insulators based on the insulating rod operation method according to claim 9, characterized in that: The elastic pad is made of rubber or silicone.

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