A quad-bundle spacer

Abstract

The utility model discloses a kind of four-split conductor spacers, including the grip hoop component for holding tightly conductor, the protection buffer structure in the inside of grip hoop component, the positioning locking structure for connecting grip hoop component and support arm system, and the support arm system of symmetrical distribution, the support arm positioning block of the support arm and grip hoop component junction place setting, the rotation angle of accurate restriction insulating support arm, effectively solve the problem that traditional spacer insulating support arm is randomly rotated and destroys conductor spacing.This design ensures that under the action of various external stress, the split conductor always maintains stable spacing, maintains the electrical performance stability of transmission line, avoids the uneven distribution of electric field, corona discharge and other adverse phenomena caused by conductor spacing change, greatly improves the reliability of transmission line operation.

Description

Technical Field

[0001] This utility model belongs to the field of power transmission and transformation technology, and specifically relates to a four-split conductor spacer. Background Technology

[0002] In the field of power transmission, the support arm system of four-split conductor spacers needs to precisely maintain the spatial distribution of conductors. A key drawback of existing technology is the lack of an effective constraint mechanism for the rotation angle of the spacer's insulating support arms. In traditional spacers, the connection structure between the insulating support arms and the clamping assembly is simple, lacking angle-limiting components. This allows the support arms to easily rotate under external stresses (such as wind force or conductor galloping), disrupting the stable spacing of the split conductors and affecting the reliability of transmission line operation. For example, excessive rotation of the support arms can cause conductor distribution disorder, weakening the spacer's fixing effect on the conductors, and even leading to problems such as conductor wear and uncontrolled spacing. Utility Model Content

[0003] The purpose of this invention is to provide a four-split conductor spacer to solve the problems mentioned in the background art.

[0004] To achieve the above objectives, the present invention provides the following technical solution: a four-split conductor spacer, comprising a clamp assembly for clamping the conductor, a protective buffer structure disposed inside the clamp assembly, a positioning and locking structure for connecting the clamp assembly and the support arm system, and a symmetrically distributed support arm system.

[0005] The clamp assembly includes clamp A and clamp B, which are spliced ​​together to form a ring structure that clamps the conductor; the protective buffer structure includes a protective pad and a vibration damping airbag disposed on the inner wall of the clamp assembly.

[0006] The positioning and locking structure includes a positioning screw that passes through clamp A and clamp B, and a locking bolt that engages with the positioning screw for locking; the support arm system includes an insulated support arm connected to the clamp assembly, and a wire clamping structure located at the end of the insulated support arm.

[0007] Preferably, the support arm system further includes a support arm connecting pin, through which the insulating support arm is movably connected to the clamp assembly, avoiding additional stress on the conductor or spacer itself due to rigid connection, and extending the service life of the spacer and conductor.

[0008] Preferably, the conductor clamping structure includes a fixed clamping arm and a movable clamping arm. The movable clamping arm is movably connected to the insulating support arm via a movable pin, and the fixed clamping arm is fixedly connected to the insulating support arm. The movable connection of the movable clamping arm allows it to buffer some of the vibration energy through its own small-amplitude swing when the conductor vibrates, further protecting the conductor from excessive wear.

[0009] Preferably, both the fixed clamping arm and the movable clamping arm have rubber clamping pads on their inner clamping surfaces, and the inner clamping surfaces of the rubber clamping pads have anti-slip teeth, which can prevent the wire from sliding inside the clamping arm.

[0010] Preferably, a support arm positioning block is provided at the connection between the insulating support arm and the clamp assembly. The support arm positioning block is used to limit the rotation angle of the insulating support arm, which helps to maintain the stability of the electrical performance of the transmission line and avoid problems such as uneven electric field distribution and corona discharge caused by changes in conductor spacing.

[0011] Preferably, the vibration damping airbag has a ring structure, which is distributed circumferentially along the inner wall of the clamp assembly, and the vibration damping airbag is filled with elastic buffer material, which effectively reduces the collision force between the wire and the clamp assembly, and prevents wear of the wire sheath and fatigue breakage of the internal metal wire.

[0012] Preferably, the joint between clamp A and clamp B is provided with a positioning locking hole, and the positioning screw passes through the positioning locking hole and is fixed by a locking bolt. The locking bolt can firmly lock the positioning screw and prevent the clamp from loosening under the action of wire tension, vibration, etc.

[0013] Preferably, the wire clamping structure is connected to the insulating support arm by a movable connecting pin. The movable connecting pin allows the wire clamping structure to make slight adjustments to the angle relative to the insulating support arm, thus avoiding uneven clamping force or excessive local force on the wire caused by wire offset.

[0014] Compared with the prior art, the technical effects and advantages of this utility model are: the four-split conductor spacer bar,

[0015] The positioning block for the insulating support arm, located at the connection point between the insulating support arm and the clamp assembly, precisely limits the rotation angle of the insulating support arm, effectively solving the problem of arbitrary rotation of the insulating support arm in traditional spacers, which disrupts the conductor spacing. This design ensures that the split conductors maintain a stable spacing under various external stresses, maintaining the stable electrical performance of the transmission line and avoiding adverse phenomena such as uneven electric field distribution and corona discharge caused by changes in conductor spacing, thus greatly improving the reliability of the transmission line operation.

[0016] The annular shock-absorbing airbags in the protective buffer structure are distributed circumferentially along the inner wall of the clamp assembly, filled with elastic buffer material, which can evenly disperse the impact force on the conductor in all directions. In harsh environments such as strong winds, it effectively reduces the collision force between the conductor and the clamp assembly, preventing wear on the conductor sheath and fatigue fracture of the internal metal wires; at the same time, its annular structure also has a certain sealing effect, reducing the entry of dust, rainwater and other impurities into the gap between the clamp and the conductor, and extending the service life of the conductor. Attached Figure Description

[0017] Figure 1 This is a top view of the four-split conductor spacer of this utility model;

[0018] Figure 2 This is a front sectional view of the protective pad of this utility model;

[0019] Figure 3 This is a front view of the insulating support arm of this utility model.

[0020] In the diagram: 1. Clamp A; 2. Clamp B; 3. Protective pad; 4. Vibration damping airbag; 5. Positioning screw; 6. Locking bolt; 7. Insulating support arm; 8. Wire clamping structure; 9. Support arm connecting pin; 10. Movable pin; 11. Rubber clamping pad; 12. Anti-slip teeth; 13. Support arm positioning block; 14. Positioning lock hole; 15. Movable connecting pin; 16. Fixed clamping arm; 17. Movable clamping arm. Detailed Implementation

[0021] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0022] Please see Figure 1-3 This utility model provides a technical solution: a four-split conductor spacer, including a clamp assembly for clamping the conductor, a protective buffer structure disposed inside the clamp assembly, a positioning and locking structure for connecting the clamp assembly and the support arm system, and a symmetrically distributed support arm system.

[0023] The clamp assembly includes clamp A1 and clamp B2, which are joined together to form a ring structure that clamps the conductor. This ring structure primarily provides a robust framework for clamping the conductor. By tightly encircling the conductor, it ensures a stable connection between the spacer and the conductor, allowing the spacer to effectively support, position, and protect the conductor. The clamp's shape and size are designed to fit the conductor's outer diameter, ensuring even distribution of clamping force and preventing damage to the conductor due to excessive local pressure. The protective buffer structure includes a protective pad 3 and a vibration-damping airbag 4 located on the inner wall of the clamp assembly.

[0024] The protective pad 3 forms a flexible insulating layer between the clamp and the conductor, preventing friction between the rigid surface of the clamp and the conductor, and avoiding damage to the conductor's outer sheath due to friction during long-term use. The protective pad is typically made of wear-resistant, soft materials with a certain degree of insulation, further enhancing the protection of the conductor. The vibration-damping airbag 4 effectively absorbs and disperses vibration energy when the conductor is subjected to external vibrations such as conductor galloping caused by wind or vibrations caused by current fluctuations in power transmission. Its ring structure ensures all-around buffering, reducing the impact force between the conductor and the clamp assembly, and preventing wear on the conductor's outer sheath and fatigue breakage of the internal metal wires.

[0025] The positioning and locking structure includes a positioning screw 5 that passes through clamps A1 and B2, and a locking bolt 6 that engages with the positioning screw 5 for locking. During installation, the positioning screw quickly guides clamps A1 and B2 to accurately align, ensuring precise positioning and improving installation efficiency. The support arm system includes an insulated support arm 7 connected to the clamp assembly. This arm transfers the force on the conductor to the clamp assembly, maintaining the conductor's spatial position. Furthermore, due to its insulation properties, it effectively isolates the conductor from other components, preventing current leakage and short circuits, ensuring the electrical safety of the transmission line. The system also includes a conductor clamping structure 8 located at the end of the insulated support arm 7.

[0026] The support arm system also includes a support arm connecting pin 9. The insulating support arm 7 is movably connected to the clamp assembly via the support arm connecting pin 9, thus achieving a movable connection between the insulating support arm 7 and the clamp assembly. During installation, installers can flexibly adjust the angle of the insulating support arm using the support arm connecting pin, allowing the spacer to better adapt to different line routes and conductor layouts.

[0027] The conductor clamping structure 8 includes a fixed clamping arm 16 and a movable clamping arm 17. The movable clamping arm 17 is movably connected to the insulating support arm 7 via a movable pin 10, while the fixed clamping arm 16 is fixedly connected to the insulating support arm 7. Together, they clamp the conductor. The fixed connection between the fixed clamping arm 16 and the insulating support arm 7 provides a stable clamping base; the movable connection between the movable clamping arm 17 and the insulating support arm 7 via the movable pin 10 allows the conductor clamping structure to adapt to different conductor diameters. In practical applications, transmission lines may use conductors of various specifications. The movable clamping arm can be adjusted according to the conductor diameter to ensure a tight fit with the conductor.

[0028] Both the fixed clamping arm 16 and the movable clamping arm 17 have rubber clamping pads 11 on their inner clamping surfaces. These rubber clamping pads 11, located on the inner clamping surfaces of the fixed clamping arm 16 and the movable clamping arm 17, possess good flexibility and elasticity. When clamping the conductor, the rubber clamping pads provide cushioning, preventing rigid contact between the clamping arm and the conductor, absorbing vibration energy, and reducing conductor wear. The inner clamping surface of the rubber clamping pad 11 is provided with anti-slip teeth 12, which greatly increase the friction between the pad and the conductor. When the conductor is subjected to high tension or is affected by harsh environments such as strong winds, the anti-slip teeth prevent the conductor from sliding within the clamping arm, ensuring that the conductor remains in a stable clamping state and maintaining the normal spacing between the conductors.

[0029] An arm positioning block 13 is provided at the connection between the insulating arm 7 and the clamp assembly. The arm positioning block 13 is used to limit the rotation angle of the insulating arm 7. Under external stresses such as wind force and conductor galloping, the insulating arm will not rotate excessively, thus maintaining a stable spacing between the split conductors. This helps maintain the stable electrical performance of the transmission line and avoids problems such as uneven electric field distribution and corona discharge caused by changes in conductor spacing. The arm positioning block can also be customized according to actual engineering needs, such as adjusting the shape and position of the positioning block to adapt to different conductor arrangements and line operating environments, improving the versatility and adaptability of the spacer.

[0030] The shock-absorbing airbag 4 has a ring structure, which is distributed circumferentially along the inner wall of the clamp assembly, and the shock-absorbing airbag 4 is filled with elastic buffer material.

[0031] A positioning locking hole 14 is provided at the joint of clamp A1 and clamp B2. The positioning screw 5 passes through the positioning locking hole 14 and is fixed by the locking bolt 6. The positioning locking hole 14 is located at the joint of clamp A1 and clamp B2, providing an accurate insertion position for the positioning screw 5, playing a positioning and guiding role, ensuring the accuracy and stability of clamp joint, and further enhancing the reliability of the positioning locking structure.

[0032] The conductor clamping structure 8 and the insulating support arm 7 are connected by a movable connecting pin 15, which allows the conductor clamping structure 8 to be finely adjusted relative to the insulating support arm 7. This connection allows for slight angle adjustments between the conductor clamping structure 8 and the insulating support arm 7. When the conductor experiences a slight shift due to its own weight, temperature changes, or other factors, the conductor clamping structure can be finely adjusted via the movable connecting pin to maintain optimal clamping of the conductor, preventing uneven clamping force or excessive localized force on the conductor caused by conductor shifting.

[0033] Specifically, during installation, clamps A1 and B2 are joined by the positioning screw 5 passing through the positioning locking hole 14 and engaging the locking bolt 6. The positioning locking hole 14 guides the positioning screw 5 for accurate insertion, allowing clamps A1 and B2 to be quickly and precisely joined, improving installation efficiency. The clamp assembly tightly wraps around the conductor, utilizing its shape and size adapted to the conductor's outer diameter to provide uniform clamping force and stably connect the spacer bar and the conductor.

[0034] Support arm system installation: The insulated support arm 7 is movably connected to the clamp assembly via the support arm connecting pin 9. Installers can flexibly adjust the angle of the insulated support arm 7 according to the line route and conductor layout. The fixed clamp arm 16 in the conductor clamping structure 8 is fixed to the end of the insulated support arm 7, and the movable clamp arm 17 is movably connected to the insulated support arm 7 via the movable pin 10. During installation, the position of the movable clamp arm 17 can be adjusted according to the conductor diameter to ensure a tight fit with the conductor.

[0035] The protective pad 3 on the inner wall of the clamp assembly forms a flexible isolation layer to prevent friction between the rigid surface of the clamp and the conductor, thus avoiding wear on the conductor sheath. The vibration-damping airbag 4 is distributed in a ring along the circumference of the inner wall of the clamp assembly, filled with elastic buffer material. When the conductor is subjected to external vibrations (such as wind or current fluctuations), it absorbs and disperses vibration energy in all directions, reducing the collision force between the conductor and the clamp assembly, preventing wear on the conductor sheath and fatigue fracture of the internal metal wires. The support arm positioning block 13 restricts the rotation angle of the insulating support arm 7, ensuring that the insulating support arm 7 does not rotate excessively under external stresses such as wind or conductor galloping, maintaining a stable spacing between the split conductors and ensuring stable electrical performance of the transmission line. The insulating support arm 7 transmits the force on the conductor to the clamp assembly, maintaining the conductor's spatial position, while its insulation properties isolate the electrical connection, preventing current leakage and short circuits. The fixed clamp arm 16 and movable clamp arm 17 of the conductor clamping structure 8 stably clamp the conductor through rubber clamping pads 11 with anti-slip teeth 12, preventing conductor slippage. When the conductor experiences a slight shift due to its own weight, temperature changes, or other factors, the conductor clamping structure 8 adjusts its angle relative to the insulating support arm 7 via the movable connecting pin 15 to maintain the optimal clamping state for the conductor.

[0036] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A four-split conductor spacer, characterized in that, It includes a clamp assembly for holding the conductor, a protective buffer structure located inside the clamp assembly, a positioning and locking structure for connecting the clamp assembly and the outrigger system, and a symmetrically distributed outrigger system. The clamp assembly includes clamp A (1) and clamp B (2), which are spliced ​​together to form a ring structure that clamps the conductor; the protective buffer structure includes a protective pad (3) and a shock-absorbing airbag (4) located on the inner wall of the clamp assembly. The positioning and locking structure includes a positioning screw (5) that passes through clamp A (1) and clamp B (2), and a locking bolt (6) that cooperates with the positioning screw (5) for locking. The support arm system includes an insulating support arm (7) connected to the clamp assembly, and a wire clamping structure (8) located at the end of the insulating support arm (7). A support arm positioning block (13) is provided at the connection between the insulating support arm (7) and the clamp assembly. The support arm positioning block (13) is used to limit the rotation angle of the insulating support arm (7).

2. The four-split conductor spacer according to claim 1, characterized in that: The outrigger system also includes an outrigger connecting pin (9), through which the insulated outrigger (7) is movably connected to the clamp assembly.

3. A four-split conductor spacer according to claim 1, characterized in that: The wire clamping structure (8) includes a fixed clamping arm (16) and a movable clamping arm (17). The movable clamping arm (17) is movably connected to the insulating support arm (7) through a movable pin (10), and the fixed clamping arm (16) is fixedly connected to the insulating support arm (7).

4. A four-split conductor spacer according to claim 3, characterized in that: Both the fixed clamping arm (16) and the movable clamping arm (17) have rubber clamping pads (11) on their inner clamping surfaces, and the inner clamping surfaces of the rubber clamping pads (11) have anti-slip teeth (12).

5. A four-split conductor spacer according to claim 1, characterized in that: The shock-absorbing airbag (4) is a ring structure, which is distributed circumferentially along the inner wall of the clamp assembly, and the shock-absorbing airbag (4) is filled with elastic buffer material.

6. A four-split conductor spacer according to claim 1, characterized in that: The joint of clamp A (1) and clamp B (2) is provided with a positioning lock hole (14), and the positioning screw (5) passes through the positioning lock hole (14) and is fixed by a locking bolt (6).

7. A four-split conductor spacer according to claim 1, characterized in that: The wire clamping structure (8) is connected to the insulating arm (7) by a movable connecting pin (15), which allows the wire clamping structure (8) to finely adjust the angle relative to the insulating arm (7).

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