A portable line tightener

Abstract

This invention belongs to the field of line connection technology, specifically disclosing a portable wire tensioner, including a first connecting cover, a wire, a first rotating joint, a second rotating joint, and an insulator. A supporting rotating rod is fixedly inserted into one end of the first connecting cover. The first and second rotating joints are respectively rotatably mounted on the lower part of the supporting rotating rod, with the first rotating joint located above the second rotating joint. A wiring groove for holding the wire is provided on the upper part of the insulator. Sealing pressing parts are provided on both sides of the outer wall of the first connecting cover, and water-covering anti-splashing parts are provided on both sides of the outer walls of the first and second rotating joints. This invention is not only easy to install, allowing for quick installation on the shaft-shaped connection part of the insulator, and provides multiple static seals at the insulator connection, but also actively guides rainwater and effectively suppresses raindrop impact and splashing, significantly improving the waterproof reliability and long-term operational safety of outdoor line connection points.

Description

Technical Field

[0001] This invention belongs to the field of line connection technology, and specifically discloses a portable wire tensioner. Background Technology

[0002] Against the backdrop of escalating global climate change and frequent extreme weather events, outdoor infrastructure for power and communication networks is facing increasingly severe environmental reliability challenges. Liquid precipitation erosion, exemplified by rainwater, is one of the main causes of failures at critical electrical nodes such as outdoor line joints, insulators, and terminal connections. Such failures are not only a significant contributing factor to unplanned outages, partial service disruptions, and even safety incidents in power grids and communication networks, but also lead to a surge in maintenance costs.

[0003] Currently, the industry's protection of outdoor electrical connection points mainly relies on improving the sealing level of the enclosure itself (such as adopting IP65 / IP67 protection standards) and injecting waterproof sealant at the connection. Traditional measures have solved the problem of protection against static water immersion or vertical dripping to a certain extent, but their design paradigm has inherent limitations and can no longer cope with the dynamic water erosion threat under complex actual working conditions. Specifically, existing protective structures are mainly based on the static approach of shielding and sealing. However, when raindrops with high drop height or high intensity impact the outer surface of the enclosure, crossarm, or insulator with large kinetic energy, they will produce irregular, fine water splashes. These "secondary splashes" of droplets have random directionality and can easily bypass conventional sealing interfaces, invading weak points such as insulator skirt gaps and cable-buffered conduit connections. Traditional static sealing is completely ineffective against this, and solutions that rely on sealant and other materials for passive sealing are susceptible to aging due to ultraviolet radiation and temperature cycle stress, leading to cracking and peeling, causing the protective performance to degrade over time and forming hidden failure points. Large, integrated rain covers, on the other hand, have problems such as being bulky, affecting heat dissipation, and potentially altering the local electric field distribution of the equipment.

[0004] Therefore, we propose a portable wire tensioner to address the aforementioned shortcomings. Summary of the Invention

[0005] The purpose of this invention is to solve the problems existing in the background art, and to propose a portable wire tensioner, including a first connecting cover, a wire, a first rotating joint, a second rotating joint, and an insulator. A supporting rotating rod is fixedly inserted into one end of the inside of the first connecting cover. The first rotating joint and the second rotating joint are respectively rotatably mounted on the lower outside of the supporting rotating rod. The first rotating joint is located above the second rotating joint. A wiring groove for holding the wire is provided on the upper inside of the insulator. Sealing pressing members are provided on both sides of the outer wall of the first connecting cover. Water-covering anti-splashing members are provided on both sides of the outer walls of the first rotating joint and the second rotating joint.

[0006] In the above technical solution, the sealing pressure component further includes an arc-shaped block fixedly installed on one side of the outer wall of the first connecting cover. Arc-shaped protective shells are fixedly installed on both sides of the bottom of the arc-shaped block. A rectangular shell is fixedly installed on the bottom of the arc-shaped block and near the connection point of the two arc-shaped protective shells. Sealing gaskets are fixedly installed on both sides inside the rectangular shell.

[0007] In the above technical solution, a water-proof sheet is fixedly installed at the bottom of both arc-shaped protective shells, and a pressure block is fixedly installed in the middle of the bottom of the first connecting cover.

[0008] In the above technical solution, further, the inner walls of the first rotating section and the second rotating section away from the supporting rotating rod are both fixedly installed with abutments, and the inner walls of the first connecting cover away from the supporting rotating rod are movably fitted with fastening bolts. The abutments inside the first rotating section and the second rotating section are both provided with threaded holes adapted to the fastening bolt connection.

[0009] In the above technical solution, the water-covering anti-splash component further includes an arc-shaped rain-drop plate fixedly installed on the outer wall of the first rotating section and the second rotating section, and a water-gathering guide groove is provided inside the lower part of the arc-shaped rain-drop plate.

[0010] In the above technical solution, the two sets of arc-shaped raindrops are arranged at an angle, and multiple rectangular blocks are fixedly installed on the outer surface of the arc-shaped raindrops.

[0011] In the above technical solution, the inner walls of the first and second rotating sections are both fixedly equipped with flexible blocks, and the rectangular blocks have rectangular cavities inside.

[0012] In the above technical solution, the abutment block is made of silicone wear-resistant material, and the flexible block is made of rubber wear-resistant material.

[0013] Compared with the prior art, the present invention has the following beneficial effects:

[0014] 1. By incorporating an integrated arc-shaped protective shell, rectangular shell, and sealing gasket on both sides of the first connecting cover, and cooperating with the bottom water-proof plate and pressure block, multiple seals and barriers are formed above and to the sides of the insulator and wire crimping area. This not only effectively prevents vertical rainwater from directly seeping in, but also works in conjunction with the anti-splash component to provide secondary blocking and isolation for any small amount of splashed water droplets, creating a relatively dry and safe local microenvironment for critical electrical connection points.

[0015] 2. The cable tensioner is quickly installed and securely clamped by a structure consisting of a first and second rotating section connected by a supporting rotating rod and locked in place with fastening bolts. Simultaneously, the flexible blocks and wear-resistant abutments on the inner wall of the rotating section provide sufficient clamping force while effectively buffering vibrations and preventing mechanical damage to the wire insulation. This ensures both ease and efficiency of installation and maintenance, while also guaranteeing the mechanical safety and stability of the line during long-term operation.

[0016] 3. By using the inclined arc-shaped rain-dropping plates and their internal water-collecting guide channels located on the outside of the first and second rotating sections, rainwater dripping from above and splashing from the sides can be actively collected. Utilizing the inclined angle and guide channel structure, the collected rainwater is guided in an orderly manner to a safe area away from the insulator wiring trough and wire connection points for discharge. This fundamentally cuts off the path of rainwater splashing disorderly due to impact with the equipment surface and then intruding into weak points of electrical connections, significantly improving the waterproof reliability of outdoor line connections. Furthermore, the surface of the arc-shaped rain-dropping plates is equipped with multiple rectangular blocks, and the rectangular cavities inside the rectangular blocks can provide multiple layers of splash protection for splashing rainwater, reducing the height of rainwater splashes and preventing splashing rainwater from reaching the sealed connection points. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the overall structure of the present invention;

[0018] Figure 2 This is a schematic diagram of the overall structure of the present invention from another angle;

[0019] Figure 3 This is a schematic diagram of the connection structure between the first connecting cover, the first rotating section, and the second rotating section of the present invention;

[0020] Figure 4 This is a schematic diagram from another angle of the connection structure between the first connecting cover, the first rotating section, and the second rotating section of the present invention;

[0021] Figure 5 This is a schematic diagram of the connection structure between the first connecting cover, the arc-shaped block, and the sealing pressure member of the present invention;

[0022] Figure 6 This is a schematic diagram from another angle showing the connection structure between the first connecting cover, the arc-shaped block, and the sealing pressure member of the present invention;

[0023] Figure 7 This is a schematic diagram of the installation structure of the flexible block and the arc-shaped rain-falling plate of the present invention;

[0024] Figure 8 This is a schematic diagram of the connection structure between the arc-shaped protective shell, the rectangular shell, and the water-proof sheet of the present invention;

[0025] Figure 9This is a schematic diagram of the connection structure between the rectangular shell and the sealing gasket of the present invention.

[0026] In the diagram: 1. First connecting cover; 2. Arc-shaped block; 3. Supporting rotating rod; 4. Fastening bolt; 5. Wire; 6. First rotating joint; 7. Second rotating joint; 8. Water-collecting guide groove; 9. Insulator; 10. Abutment block; 11. Arc-shaped protective shell; 12. Arc-shaped raindrop plate; 13. Wiring groove; 14. Pressure block; 15. Rectangular shell; 16. Sealing gasket; 17. Waterproof plate; 18. Flexible block; 19. Rectangular block. Detailed Implementation

[0027] To better understand the above-mentioned objectives, features, and advantages of the present invention, the present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments.

[0028] Numerous specific details are set forth in the following description in order to provide a full understanding of the invention. However, the invention may also be practiced in other ways different from those described herein, and therefore the invention is not limited to the specific embodiments disclosed below.

[0029] like Figures 1-9 The portable wire tensioner shown includes a first connecting cover 1, a wire 5, a first rotating section 6, a second rotating section 7, and an insulator 9. A support rotating rod 3 is fixedly inserted into one end of the inside of the first connecting cover 1. The first rotating section 6 and the second rotating section 7 are respectively rotatably mounted on the lower outside of the support rotating rod 3, with the first rotating section 6 located above the second rotating section 7. A wiring groove 13 for holding the wire 5 is provided on the upper inside of the insulator 9. Sealing pressing parts are provided on both sides of the outer wall of the first connecting cover 1, and water-covering anti-splashing parts are provided on both sides of the outer walls of the first rotating section 6 and the second rotating section 7.

[0030] In this embodiment, during installation, the first rotating section 6 and the second rotating section 7 are wrapped around both sides of the connection between the insulator 9 and the wire 5. Both can rotate around the supporting rotating rod 3 to achieve opening and closing. The sealing pressure member provides sealing pressure from above, while the water-covering anti-splash member receives and diverts rainwater from the side, preventing it from impacting and splashing onto critical electrical connection parts, thereby achieving the basic functions of fastening and waterproofing.

[0031] The sealing pressure component includes an arc-shaped block 2 fixedly installed on one side of the outer wall of the first connecting cover 1. Arc-shaped protective shells 11 are fixedly installed on both sides of the bottom of the arc-shaped block 2. A rectangular shell 15 is fixedly installed at the bottom of the arc-shaped block 2 and near the connection point of the two arc-shaped protective shells 11. Sealing gaskets 16 are fixedly installed on both sides inside the rectangular shell 15. Waterproof plates 17 are fixedly installed at the bottom of both arc-shaped protective shells 11. A pressure block 14 is fixedly installed in the middle of the bottom of the first connecting cover 1.

[0032] In this embodiment, the sealing pressure member constitutes a multi-level protective barrier. The pressure block 14 presses directly down on the joint between the wire 5 and the wiring groove 13, forming the first vertical seal. The two arc-shaped protective shells 11 and the water-proof plate 17 at their bottoms can cover the upper part of the wiring groove 13 of the insulator 9 from both sides, blocking rainwater from the bottom and sides. The rectangular shell 15 located at the connection root of the arc-shaped protective shell 11 and the sealing gasket 16 inside it form an annular contact seal after installation, effectively preventing moisture from entering from the upper gaps.

[0033] A stop block 10 is fixedly installed on the inner wall of the first rotating section 6 and the second rotating section 7 at the end away from the supporting rotating rod 3. A fastening bolt 4 is movably sleeved inside the first connecting cover 1 at the end away from the supporting rotating rod 3. The stop blocks 10 inside the first rotating section 6 and the second rotating section 7 are provided with threaded holes adapted to the connection of the fastening bolt 4. The water-covering anti-splashing component includes an arc-shaped rain-drop plate 12 fixedly installed on the outer wall of the first rotating section 6 and the second rotating section 7, and a water-gathering guide groove 8 is provided at the bottom inside the arc-shaped rain-drop plate 12.

[0034] In this embodiment, after the first rotating section 6 and the second rotating section 7 clamp the upper end of the insulator 9, the fastening bolt 4 is screwed in, allowing it to pass through the first connecting cover 1 and be screwed into the threaded holes of the two abutment blocks 10. As the fastening bolt 4 is tightened, the first rotating section 6 and the second rotating section 7 are pulled together around the supporting rotating rod 3, and the clamping force is directly and evenly transmitted to the shaft-shaped connecting part of the insulator 9 through the abutment blocks 10, achieving a firm fixation while facilitating disassembly and maintenance.

[0035] Two sets of arc-shaped rain blades 12 are set at an angle, and multiple rectangular blocks 19 are fixedly installed on the outer surface of the arc-shaped rain blades 12. Flexible blocks 18 are fixedly installed on the inner walls of the first rotating section 6 and the second rotating section 7. Rectangular cavities are opened inside the rectangular blocks 19. The abutment block 10 is made of silicone wear-resistant material, and the flexible block 18 is made of rubber wear-resistant material.

[0036] In this embodiment, the inclined arc-shaped raindrop 12 can efficiently collect rainwater around the connection points of the insulator 9 and the wire 5. The internal water-collecting channel 8 gathers the dispersed water flow and directs it to a safe area for rapid discharge, achieving orderly drainage of rainwater. The multiple rectangular blocks 19 protruding on the surface and their internal rectangular cavities can disperse, buffer, and absorb the kinetic energy of impacting raindrops, significantly suppressing harmful secondary splashes generated when rainwater hits the surface and preventing it from splashing into the high sealed area. At the same time, the rubber flexible block 18 and silicone abutment block 10 on the inner wall of the rotating joint provide sufficient clamping force while buffering vibration and avoiding damage to the insulation layer of the wire 5, ensuring the mechanical safety and stability of long-term operation.

[0037] In summary, a portable wire tensioner allows for quick installation and secure clamping of the axial connection of the insulator 9 via the first rotating section 6 and the second rotating section 7, offering significant portability. Simultaneously, arc-shaped protective shells 11 and sealing gaskets 16 are provided on both sides of the first connecting cover 1, and arc-shaped rain-falling plates 12 with water-collecting guide grooves 8 and rectangular blocks 19 are provided on the outer walls of the first rotating section 6 and the second rotating section 7 as water-covering and splash-proof components. This structure not only effectively drains rainwater but also suppresses rainwater impact and splashing, providing a long-term reliable waterproof seal at the connection between the wire 5 and the insulator 9 under multiple layers of protection, significantly improving the environmental adaptability and maintenance safety of outdoor line connections.

[0038] Working Principle: During installation, first align the wiring slot 13 above the insulator 9 with the wire 5 to be fixed. Then, the first rotating joint 6 and the second rotating joint 7 are fitted together onto the support rod 3 through their internal through holes, so that the first rotating joint 6 and the second rotating joint 7 are located on opposite sides of the insulator 9. Since the first rotating joint 6 and the second rotating joint 7 can rotate relative to each other around the support rod 3, they can clamp the connecting shaft-like connecting part of the insulator 9. Next, rotate the fastening bolt 4 so that it passes through the end of the first connecting cover 1 and is screwed into the threaded hole on the inner wall abutment block 10 of the first rotating joint 6 and the second rotating joint 7. As the fastening bolt 4 is tightened, the two rotating joints move closer to each other around the support rod 3 as the axis, causing the silicone wear-resistant abutment block 10 and the rubber wear-resistant flexible block 18 on their inner walls to press tightly against the side of the insulator 9 and the wire 5. The flexible block 18 provides elasticity and cushioning to avoid damage to the insulation layer of the wire 5; while the wear-resistant abutment block 10 ensures that stable friction is maintained under long-term vibration and clamping force, achieving a firm lock. This structure enables the device to be quickly opened and closed and easily installed.

[0039] The sealing pressure element forms the first active protective barrier above the connection point. After the device is locked, the pressure block 14 in the middle of the bottom of the first connection cover 1 presses directly down on the area above the entrance of the wire 5 into the insulator 9 wiring slot 13, forming a preliminary vertical compression seal. Simultaneously, the sealing pressure elements located on both sides of the outer wall of the first connection cover 1 play a major lateral sealing role. Two arc-shaped protective shells 11 extend downwards from the bottom of the arc-shaped block 2, covering the outer edges of the insulator 9 skirts or connection points on both sides. The water-resistant plate 17 at the bottom of the arc-shaped protective shell 11 extends further downwards, effectively blocking rainwater or low-angle splashing water droplets from the sides.

[0040] At the junction of the two arc-shaped protective shells 11, the rectangular shell 15 and the sealing gaskets 16 on both sides inside form a critical contact seal. Once the device is installed, the sealing gaskets 16 wrap around the outside of the wire 5, forming a surrounding sealing ring to prevent moisture from seeping in through the gaps in the rectangular shell 15. The sealing lower component, arc-shaped protective shell 11, water-proof plate 17, pressure block 14, rectangular shell 15, and sealing gaskets 16, together with the insulator 9 and wire 5 below, enclose a relatively closed, dry space, protecting the most critical electrical connection point.

[0041] The arc-shaped raindrop 12, due to its inclined design, can efficiently collect rainwater dripping vertically from above and being blown from the side by the wind. Rainwater first falls onto the wide surface of the arc-shaped raindrop 12, and the water falling on it naturally flows downwards due to its inclination angle. More importantly, the water-collecting channel 8 located at the bottom of the arc-shaped raindrop 12 can gather the dispersed water flow, forming a concentrated water flow path. This design ensures that the collected rainwater is actively and orderly guided to a designated location away from the insulator 9 wiring groove 13 and the sealing area of ​​the first connection cover 1, fundamentally preventing rainwater from arbitrarily flowing, accumulating, or dripping onto sensitive areas at the connection point.

[0042] When large raindrops impact the surface of the curved raindrop plate 12 at high speed, they generate tiny splashes. To address this, multiple rectangular blocks 19 are arranged on the outer surface of the curved raindrop plate 12, each with a rectangular cavity inside. These rectangular blocks 19, arranged in an array, disperse the impacting raindrops, breaking them down into smaller droplets or altering their splash direction. Simultaneously, the internal rectangular cavities form a buffer and energy-absorbing structure, absorbing some of the impact kinetic energy of the raindrops. This multi-layered splash-proof structure significantly reduces the height and energy of the splashing rain, ensuring that even if splashing occurs, the raindrops cannot reach sufficient height and speed to overcome the barrier formed by the curved protective shell 11 and the water-resistant plate 17, thus preventing splashed rainwater from intruding into the rear sealing connection.

[0043] The foregoing has shown and described the basic principles, main features, and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The embodiments and descriptions in the specification are merely principles of the invention. Various changes and modifications can be made to the invention without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed invention.

Claims

1. A portable wire tensioner, comprising a first connecting cover (1), a wire (5), a first rotating joint (6), a second rotating joint (7), and an insulator (9), characterized in that: A support rotating rod (3) is fixedly inserted into one end of the first connecting cover (1). The first rotating section (6) and the second rotating section (7) are respectively rotatably mounted on the lower part of the support rotating rod (3). The first rotating section (6) is located above the second rotating section (7). A wiring groove (13) for clamping wires (5) is provided on the upper part of the insulator (9). Sealing pressing parts are provided on both sides of the outer wall of the first connecting cover (1). Water-covering anti-splashing parts are provided on both sides of the outer wall of the first rotating section (6) and the second rotating section (7). The sealing pressure component includes an arc-shaped block (2) fixedly installed on one side of the outer wall of the first connecting cover (1). Arc-shaped protective shells (11) are fixedly installed on both sides of the bottom of the arc-shaped block (2). A rectangular shell (15) is fixedly installed at the bottom of the arc-shaped block (2) and near the connection of the two arc-shaped protective shells (11). Sealing gaskets (16) are fixedly installed on both sides inside the rectangular shell (15). The inner walls of the first rotating section (6) and the second rotating section (7) away from the supporting rotating rod (3) are both fixedly installed with abutment blocks (10). The first connecting cover (1) is movably sleeved with a fastening bolt (4) at the inner end away from the supporting rotating rod (3). The abutment blocks (10) inside the first rotating section (6) and the second rotating section (7) are both provided with threaded holes adapted to the fastening bolt (4) connection. The water-covering anti-splashing component includes an arc-shaped rain-drop plate (12) fixedly installed on the outer wall of the first rotating section (6) and the second rotating section (7), and a water-gathering guide groove (8) is provided inside the lower part of the arc-shaped rain-drop plate (12).

2. A portable wire tensioner according to claim 1, characterized in that: Both of the arc-shaped protective shells (11) have water-proof plates (17) fixedly installed at the bottom, and the first connecting cover (1) has a pressure block (14) fixedly installed in the middle of the bottom.

3. A portable wire tensioner according to claim 1, characterized in that: The two sets of arc-shaped rain-dropping blades (12) are arranged at an angle, and multiple rectangular blocks (19) are fixedly installed on the outer surface of the arc-shaped rain-dropping blades (12).

4. A portable wire tensioner according to claim 3, characterized in that: Flexible blocks (18) are fixedly installed on the inner walls of the first rotating section (6) and the second rotating section (7), and a rectangular cavity is opened inside the rectangular block (19).

5. A portable wire tensioner according to claim 4, characterized in that: The abutment (10) is made of silicone wear-resistant material, and the flexible block (18) is made of rubber wear-resistant material.

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