An electrically powered crossarm clamp installation tool for live-line work

Abstract

The utility model discloses an electric parallel groove wire clamp installation tool for live working, it includes clamping mechanism, impact transmission subassembly, motor assembly and battery, the clamping mechanism includes leading wire clamping subassembly, wire clamp clamping subassembly and emergency unlocking subassembly, the leading wire clamping subassembly includes leading wire clamp plate, leading wire clamping drive source, two leading wire clamp plates are all fixedly connected through L type support and fixed support plate, the fixed support plate is along the midaxial line of long side and is fixed with two L type supports, wherein the L type support is rotatably connected with the leading wire clamp plate, the output shaft of leading wire clamping drive source is inserted into the arc slot of leading wire clamp plate through one end of connecting block and realizes drive connection, the connecting block is fixedly connected with the output shaft of leading wire clamping drive source, the utility model solves the technical problem of complicated installation, unstable installation quality and low installation efficiency in the technical field of live working.

Description

Technical Field

[0001] This utility model relates to the field of live-line working technology, specifically to an electric parallel trench clamp installation tool for live-line working. Background Technology

[0002] Parallel groove clamps, as key connecting components in power distribution network systems, are widely used for non-tension connections of small- and medium-section aluminum stranded wires, steel-cored aluminum stranded wires, and overhead lightning protection steel stranded wires. They are also core components for jumper connections on non-straight-line towers. In actual construction operations, to avoid the safety risks of operators directly contacting live conductors, insulated bucket trucks are conventionally used for high-altitude installation. However, in complex working environments such as narrow roads, fields, and reservoirs, insulated bucket trucks are limited by site conditions and cannot reach the work location normally. In such cases, pole climbing is required, and specialized parallel groove clamp installation tools must be used to complete the construction. Existing installation tools generally have operational limitations, requiring at least two operators to work together. During the operation, when manually aligning and inserting the lead wire, it is difficult to achieve accurate positioning due to the limited distance of the pole climbing operation. Tightening the nut requires manual alignment and force application using a separate tool, which is not only cumbersome and inefficient, but also makes it difficult to guarantee the stability of the installation quality. In live-line working scenarios, the operational deficiencies of existing parallel trench clamp installation tools become even more pronounced. Workers must complete multi-step collaborative operations in a live environment, which is not only labor-intensive but also significantly increases the risk of error due to the complexity of the procedures. If the parallel trench clamp connection becomes unreliable due to installation tool issues, it will not only force power supply companies to increase the frequency of line inspections and shorten maintenance cycles, significantly increasing operating costs, but it may also trigger line faults or even safety accidents, leading to widespread power outages and directly threatening the personal safety of urban and rural residents and the normal power supply order for social production and daily life. Therefore, there is an urgent need for technical improvements to existing parallel trench clamp installation tools. Utility Model Content

[0003] The purpose of this utility model is to overcome the above-mentioned technical deficiencies and provide an electric parallel groove clamp installation tool for live-line work, which solves the technical problems of complex installation, susceptibility to environmental interference, unstable installation quality, and low installation efficiency of parallel groove clamps in the field of live-line work.

[0004] To achieve the above technical objectives, the present invention provides an electric parallel trench clamp installation tool for live-line work, comprising: The device includes a clamping mechanism, an impact transmission assembly, a motor assembly, and a battery. The clamping mechanism comprises a lead wire clamping assembly, a wire clamping assembly, and an emergency unlocking assembly. The lead wire clamping assembly includes a lead wire clamping plate and a lead wire clamping drive source. Both lead wire clamping plates are fixedly connected to a fixed support plate via L-shaped brackets. The fixed support plate has two L-shaped brackets symmetrically distributed and fixed along its long side's central axis, wherein the L-shaped brackets are rotatably connected to the lead wire clamping plates. The output shaft of the lead wire clamping drive source is driven by inserting one end of a connecting block into an arc-shaped groove in the lead wire clamping plate. The connecting block is fixedly connected to the output shaft of the lead wire clamping drive source.

[0005] Compared with the prior art, the beneficial effects of this utility model include: 1. Reduce operational complexity and improve the feasibility of single-person operation: The three functions of "lead wire clamping", "wire clamping" and "installation bolts" are integrated into one. Through independent lead wire clamping components and wire clamping components, the lead wire and parallel groove wire clamp are positioned and fixed synchronously, eliminating the need for multiple people to coordinate alignment. At the same time, electric drive is used instead of manual operation, reducing manual operation steps and lowering operational complexity.

[0006] 2. Improved installation accuracy, quality stability, and safety: The clamping status of the lead wire is detected by the first sensing unit, and the clamping drive source status of the clamp is detected by the control circuit board to determine the clamping status of the clamp, ensuring that both are clamped tightly and preventing loosening, thus improving the installation accuracy and quality of the parallel groove clamp; the disassembly status of the clamp is detected by the second sensing unit to prevent excessive disassembly from causing objects to fall from height, ensuring personal safety during the disassembly of the clamp.

[0007] 3. Improved work efficiency and adaptability to complex environments: The clamping, alignment, and bolt tightening of the lead wire and parallel groove clamps are all completed through integrated tools, eliminating the need for frequent tool changes. This is especially suitable for pole climbing operations in narrow roads and fields where insulated boom trucks cannot reach. At the same time, lithium batteries are used to power the motor components and various drive sources, which have high energy density and light weight, meeting the endurance requirements for high-altitude operations. The impact transmission component replaces manual tightening, greatly improving the efficiency of bolt operation. Attached Figure Description

[0008] Figure 1 This is a schematic diagram of the structure of the electric parallel groove clamp installation tool for live working provided by this utility model when the parallel groove clamp is held. Figure 2 This is an exploded structural diagram of the electric parallel trench clamp installation tool for live-line work provided by this utility model; Figure 3 This is a three-dimensional structural diagram of the electric parallel groove clamp installation tool for live-line work provided by this utility model; Figure 4This is a schematic diagram of the three-dimensional structure of the clamping mechanism provided by this utility model. Figure 1 ; Figure 5 This is a schematic diagram of the three-dimensional structure of the clamping mechanism provided by this utility model. Figure 2 . Detailed Implementation

[0009] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present utility model and are not intended to limit the present utility model.

[0010] It should be noted that when an element is referred to as being "fixed to" another element, it can be directly attached to the other element or there may be an intervening element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or there may be an intervening element. The terms "vertical," "horizontal," "left," "right," and similar expressions used herein are for illustrative purposes only and do not represent the only possible implementation.

[0011] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains. The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. The term "and / or" as used herein includes any and all combinations of one or more of the associated listed items.

[0012] Please see Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 This embodiment provides an electric parallel trench clamp installation tool for live-line work, including a clamping mechanism 1, an impact transmission assembly 2, a motor assembly 3, and a storage battery 4.

[0013] Furthermore, the clamping mechanism 1 includes a lead wire clamping assembly 11, a wire clamping assembly 12, and an emergency unlocking assembly 13.

[0014] Furthermore, in this embodiment, the lead wire clamping assembly 11 mainly clamps the lead wire until the parallel groove clamp 5 achieves a fixed connection between the lead wire and the main wire.

[0015] Furthermore, in this embodiment, the wire clamping assembly 12 mainly clamps the parallel groove wire clamp 5 until the parallel groove wire clamp 5 achieves a fixed connection between the lead wire and the main wire.

[0016] Furthermore, in this embodiment, when the drive source of the lead wire clamping assembly 11 and the drive source of the wire clamping assembly 12 fail to work and the tool is stuck on the wire and cannot be removed, the emergency unlocking assembly 13 is used to remove the tool from the main line.

[0017] The above functions are mainly achieved through its following specific structural features: Furthermore, the lead clamping assembly 11 includes a lead clamping plate 111 and a lead clamping drive source 112.

[0018] Preferably, the lead wire clamping drive source 112 is an electric actuator.

[0019] Furthermore, both lead clamps 1111 are fixedly connected to the fixed support plate 114 via L-shaped brackets 113. The fixed support plate 114 is symmetrically distributed along the central axis of its long side and has two L-shaped brackets 113 fixed thereon. The L-shaped brackets 113 are rotatably connected to the lead clamps 111.

[0020] Furthermore, the output shaft of the lead wire clamping drive source 112 is driven by inserting one end of the connecting block 115 into the arc-shaped groove 116 of the lead wire clamping plate 111. The connecting block 115 is fixedly connected to the output shaft of the lead wire clamping drive source 112.

[0021] Furthermore, when the output shaft of the lead wire clamping drive source 112 extends, it drives the connecting block 115 to move upward. Under the action of the arc-shaped groove 116 of the lead wire clamping plate 111, the lead wire clamping plate 111 rotates relative to the L-shaped bracket 113. Under the self-locking function of the lead wire clamping drive source 112, it clamps the lead wire. Conversely, when the output shaft of the lead wire clamping drive source 112 retracts, the lead wire clamping plate 111 resets and no longer clamps the lead wire.

[0022] Furthermore, the wire clamping assembly 12 includes a wire clamp plate 121, a wire clamp block 122, a wedge block 123, and a first guide rod 124. The L-shaped bracket 113, the lead wire clamp plate 111, the wire clamp plate 121, and the wire clamp block 122 are sequentially mounted on the first guide rod 124. The L-shaped bracket 113 is fixed to the first guide rod 124 by a threaded connection. There are two such connections, symmetrically arranged on the left and right sides of the axial surface of the tool. This allows for both relative rotation of the lead wire clamp plate 111 relative to the L-shaped bracket 113 and horizontal movement of the wire clamp plate 121 and the wire clamp block 122 relative to the first guide rod 124.

[0023] Furthermore, the first guide rod 124 is inserted into the through hole of the wire clamp block 122 and slidably connected to the wire clamp block 122. Both ends of the first guide rod 124 are fixedly connected to the L-shaped bracket 113. There are two wire clamp blocks 122, and an elastic element is provided between the two wire clamp blocks 122. The elastic element is sleeved on the first guide rod 124.

[0024] Furthermore, in this embodiment, two first guide rods 124 are provided to prevent the wire clamp block 122 from rotating on the first guide rod 124.

[0025] Preferably, the elastic element is a spring.

[0026] Furthermore, the wire clamp plate 121 is fixedly connected to the opposite side of the two wire clamp blocks 122. The wire clamp plate 121 is L-shaped. The wedge block 123 is placed between the two wire clamp blocks 122. The surface of the wire clamp block 122 opposite to the wedge block 123 is designed as an inclined surface adapted to the side of the wedge block 123.

[0027] Furthermore, when the wedge block 123 is in the rising state, the elastic element is in the stretched state, the distance between the two wire clamp blocks 122 increases, and the wire clamp 5 is no longer clamped.

[0028] Furthermore, when the wire clamp plate 121 is not in working state, the elastic element is in a stretched state; when the wire clamp plate 121 clamps the parallel groove wire clamp 5, the wedge block 123 descends, and under the elastic force of the elastic element, the two wire clamp blocks 122 drive the two wire clamp plates 121 to move closer in the same direction, shortening the distance between them, and realizing the clamping action of the parallel groove wire clamp 5.

[0029] Furthermore, the wire clamping assembly 12 also includes a wire clamping drive source 125, the output shaft of which is fixedly connected to the wedge block 123, and the fixed end of which is fixedly connected to the wire clamping drive source 125 and the wire clamp unlocking nut 131 in the emergency unlocking assembly 13.

[0030] Furthermore, in this embodiment, the wire clamping drive source 125 is an electric actuator. The extension and shortening of the output shaft of the wire clamping drive source 125 realizes the rise and fall of the wedge block 123, thereby realizing the opening and tightening of the wire clamp plate 121.

[0031] Furthermore, in this embodiment, both the wire clamping drive source 125 and the lead wire clamping drive source 112 are electric actuators, which have the following advantages: 1. High driving precision and controllable clamping force: The electric actuator is driven by a motor-driven lead screw / gear transmission, and the stroke and speed can be precisely controlled. At the same time, its output thrust is stable, and the clamping force can be precisely adjusted by controlling the motor speed or current, avoiding the wire clamp from falling off due to excessive looseness or being damaged by excessive tightness, thus preventing damage to the wire clamp body and lead wire; 2. Good self-locking performance and ensuring operational safety: The electric actuator has a mechanical self-locking function. When the motor stops working, the output shaft of the actuator can maintain its current position, ensuring that the wire clamp plate continues to clamp stably during high-altitude operations. 1. **Holding and clamping wire clamps:** The clamping mechanism is designed to prevent failure due to external force, thus improving operational safety. 2. **Compact structure, adaptable to tool integration design:** The electric actuator is small and modular, easily integrated into the clamping mechanism. It fits snugly with wedge blocks, wire clamp blocks, and other components, avoiding excessive tool space usage and meeting the "miniaturization" requirements for tools in pole climbing operations. 3. **Convenient operation, easy linkage control:** The electric actuator can be electrically controlled by a controller, eliminating the need for manual force application. Operators can remotely control the clamping action within an insulated operating distance. Simultaneously, its electrical signals can easily link with the tool's sensing unit, achieving an automated closed loop of "clamping-detection-feedback," reducing human error.

[0032] Furthermore, the emergency unlocking assembly 13 also includes a push rod connecting block 132, an emergency unlocking screw 133, and a pull ring 134.

[0033] Furthermore, both the push rod connecting block 132 and the wire clamp unlocking nut 131 have threaded holes that extend vertically along the central axis. The push rod connecting block 132 and the wire clamp unlocking nut 131 have through holes symmetrically arranged about the central axis. The upper and lower ends of the emergency unlocking screw 133 are threadedly connected to the push rod connecting block 132 and the wire clamp unlocking nut 131 through threaded holes, respectively. The bottom end of the emergency unlocking screw 133 is fixedly connected to the pull ring 134.

[0034] Furthermore, a second guide rod 135 is provided between the push rod connecting block 132 and the wire clamp unlocking nut 131. The upper and lower ends of the second guide rod 135 are respectively inserted into the through holes of the push rod connecting block 132 and the wire clamp unlocking nut 131, wherein the top end of the second guide rod 135 is fixedly connected to the fixed support plate 114.

[0035] Furthermore, the second guide rod 135 serves a guiding function.

[0036] Furthermore, the outer wall of the portion of the emergency unlocking screw 133 that is threaded to the push rod connecting block 132 is provided with a first thread 1331, and the outer wall of the portion that is connected to the clamp unlocking nut is provided with a second thread 1332.

[0037] Furthermore, the first thread 1331 and the second thread 1332 have opposite directions of rotation.

[0038] Furthermore, the push rod connecting block 132 is generally inverted U-shaped, and both sides of the push rod connecting block 132 are fixedly connected to the fixed end of the lead wire clamping drive source 112.

[0039] Furthermore, when the wire clamping drive source 125 and the lead wire clamping drive source 112 fail to operate, the pull ring 134 is manually rotated to drive the emergency unlocking screw 133 to rotate. Since the first thread 1331 and the second thread 1332 have opposite directions of rotation, rotating the pull ring 134 counterclockwise drives the wire clamp unlocking nut 131 to move upward, thereby driving the wire clamping drive source 125 to move upward as a whole. Consequently, the wedge block 123 pushes the two wire clamp blocks 122 and the wire clamp plate 121 to move in opposite directions, no longer clamping the parallel groove wire clamp 5. At the same time, the push rod connecting block 132 is driven to move upward, thereby driving the two lead wire clamping drive sources 112 to move downward as a whole, thereby driving the lead wire clamp plate 111 to rotate, no longer clamping the lead wire. Conversely, when the pull ring 134 is manually rotated clockwise, the wire clamp plate 121 is driven to clamp the parallel groove wire clamp 5, and the lead wire clamp plate 111 is driven to clamp the lead wire.

[0040] Furthermore, a first sensing unit 126 is provided on the outer side of the wire clamp plate 121; a second sensing unit 127 is provided on the outer side of the top of the wire clamp plate.

[0041] Preferably, both the first sensing unit 126 and the second sensing unit 127 are photoelectric sensors. The second sensing unit 127 is used to detect a portion of the position on the parallel groove clamp 5 to prevent the upper end of the parallel groove clamp 5 from falling off. During the disassembly of the parallel groove clamp 5, when the bolts are loosened, the lower end of the parallel groove clamp 5 is fixed, and when the upper end is loosened to the trigger position of the second sensing unit 127, the bolts on the parallel groove clamp 5 will no longer be loosened.

[0042] Furthermore, the first sensing unit 126 detects the state of the lead clamping. When the lead is clamped, the magnitude of the stall current of the lead clamping drive source 112 and the lead position data detected by the first sensing unit 126 determine whether the lead is clamped, ensuring that the lead will not loosen after being clamped.

[0043] Furthermore, the output end of the motor assembly is driven and connected to the input end of the impact transmission assembly, and the output end of the impact transmission assembly is located directly below the area where the wire clamp is placed.

[0044] Furthermore, the main function of the motor assembly 3 is to provide power to the impact transmission assembly 2. The main function of the impact transmission assembly 2 is to apply the driving force from the motor assembly 3 to the bolt of the parallel groove clamp 5 through the sleeve 21 provided at the front end of the impact transmission assembly 2, thereby achieving the locking or unlocking of the parallel groove clamp 5.

[0045] Furthermore, in this embodiment, the battery 4 that provides power to the motor assembly 3 is a lithium battery. Lithium batteries have advantages such as high energy density, long battery life, light weight, suitability for high-altitude operations, stable charging and discharging performance, long lifespan, and safety suitable for charged environments.

[0046] Working Principle: The electric parallel groove clamp installation tool for live-line work provided by this utility model includes a clamping mechanism 1, an impact transmission assembly 2, a motor assembly 3, and a battery 4. The clamping mechanism 1 includes a lead wire clamping assembly 11, a wire clamping assembly 12, and an emergency unlocking assembly 13; the lead wire clamping assembly 11 includes a lead wire clamping plate 111 and a lead wire clamping drive source 112. Both lead wire clamping plates 111 are fixedly connected to a fixed support plate 114 via L-shaped brackets 113. The fixed support plate 114 is symmetrically distributed along the central axis of its long side and has two L-shaped brackets 113 fixedly attached. The L-shaped brackets 113 are rotatably connected to the lead wire clamping plates 111. The output shaft of the lead wire clamping drive source 112 is driven by inserting one end of a connecting block 115 into an arc-shaped groove 116 opened in the lead wire clamping plate 111. The connecting block 115 is fixedly connected to the output shaft of the lead wire clamping drive source 112.

[0047] Specifically, when splicing the lead wire to the main line in complex environments such as narrow roads, fields, or around reservoirs, the process begins with first clamping the parallel groove clamp 5 using the clamping assembly 1 and positioning it in the corresponding position on the tool. Next, the stripped lead wire is clamped using the lead wire clamping assembly 1, placing it on one side of the parallel groove clamp 5. The tool is then lifted, aligning the parallel groove clamp 5 with the main line, and placing the main line on the other side of the parallel groove clamp 5. After these steps, the motor assembly 3 and the impact transmission assembly 2 operate, tightening the bolts on the parallel groove clamp 5 to securely connect the lead wire and the main line. Once the connection is complete, the lead wire clamping drive source 112 and the clamping drive source 125 operate again, releasing the lead wire and the parallel groove clamp 5. The tool is then removed, and the lead wire and main line are successfully spliced.

[0048] The specific embodiments of this utility model described above do not constitute a limitation on the scope of protection of this utility model. Any other corresponding changes and modifications made based on the technical concept of this utility model should be included within the scope of protection of the claims of this utility model.

Claims

1. An electric parallel trench clamp installation tool for live-line work, characterized in that, The device includes a clamping mechanism; the clamping mechanism includes a lead wire clamping assembly, a wire clamping assembly, and an emergency unlocking assembly; the lead wire clamping assembly includes a lead wire clamping plate and a lead wire clamping drive source; both lead wire clamping plates are fixedly connected to a fixed support plate via L-shaped brackets; the fixed support plate has two L-shaped brackets symmetrically distributed and fixed along the central axis of its long side, wherein the L-shaped brackets are rotatably connected to the lead wire clamping plates; the output shaft of the lead wire clamping drive source is driven by inserting one end of a connecting block into an arc-shaped groove in the lead wire clamping plate; the connecting block is fixedly connected to the output shaft of the lead wire clamping drive source.

2. The electric parallel groove clamp installation tool for live-line work according to claim 1, characterized in that, The wire clamping assembly includes a wire clamp plate, a wire clamp block, a wedge block, and a first guide rod; the first guide rod is inserted into a through hole in the wire clamp block and slidably connected to the wire clamp block; both ends of the first guide rod are fixedly connected to the L-shaped bracket; two wire clamp blocks are provided, and an elastic element is provided between the two wire clamp blocks, wherein the elastic element is sleeved on the first guide rod.

3. The electric parallel trench clamp installation tool for live-line work according to claim 2, characterized in that, The two wire clamp blocks are fixedly connected to the wire clamp plate on opposite sides; the wire clamp plate is L-shaped; the wedge block is placed between the two wire clamp blocks; the surface of the wire clamp block opposite to the wedge block is designed as an inclined surface adapted to the side of the wedge block; when the wedge block is in the raised state, the elastic element is in the stretched state, and the distance between the two wire clamp blocks increases.

4. The electric parallel trench clamp installation tool for live-line work according to claim 3, characterized in that, The wire clamping assembly further includes a wire clamping drive source; the output shaft of the wire clamping drive source is fixedly connected to the wedge block; the fixed end of the wire clamping drive source is fixedly connected to the wire clamp unlocking nut in the emergency unlocking assembly.

5. The electric parallel groove clamp installation tool for live-line work according to claim 4, characterized in that, The emergency unlocking assembly also includes a push rod connecting block, an emergency unlocking screw, and a pull ring; the push rod connecting block and the wire clamp unlocking nut are both provided with threaded holes running vertically along the central axis; the push rod connecting block and the wire clamp unlocking nut are symmetrically provided with through holes about the central axis; the upper and lower ends of the emergency unlocking screw are respectively threaded to the push rod connecting block and the wire clamp unlocking nut through threaded holes; the bottom end of the emergency unlocking screw is fixedly connected to the pull ring.

6. The electric parallel trench clamp installation tool for live-line work according to claim 5, characterized in that, A second guide rod is also provided between the push rod connecting block and the wire clamp unlocking nut; the upper and lower ends of the second guide rod are respectively inserted into the through holes of the push rod connecting block and the wire clamp unlocking nut, wherein the top end of the second guide rod is fixedly connected to the fixed support plate.

7. The electric parallel trench clamp installation tool for live-line work according to claim 6, characterized in that, The outer wall of the portion of the emergency unlocking screw that is threaded to the push rod connecting block has a first thread, and the outer wall of the portion that is threaded to the wire clamp unlocking nut has a second thread; the first thread and the second thread have opposite directions of rotation; the push rod connecting block is generally U-shaped; both sides of the push rod connecting block are fixedly connected to the fixed end of the lead wire clamping drive source.

8. The electric parallel trench clamp installation tool for live-line work according to claim 7, characterized in that, A first sensing unit is provided on the outer side of the wire clamp plate; a second sensing unit is provided on the outer side of the top of the wire clamp plate.

9. The electric parallel trench clamp installation tool for live-line work according to claim 8, characterized in that, It also includes an impact transmission assembly, a motor assembly, and a battery that provides power to the motor assembly; the output end of the motor assembly is driven and connected to the input end of the impact transmission assembly; the output end of the impact transmission assembly is located directly below the area where the parallel groove clamp is placed.

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