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CN-224218086-U - Jumper suspension clamp

CN224218086UCN 224218086 UCN224218086 UCN 224218086UCN-224218086-U

Abstract

The utility model discloses a jumper suspension clamp which comprises a U-shaped frame, a bolt A and an upper clamp, wherein a lower clamp is arranged at the bottom of the U-shaped frame, a hanging plate is arranged at the bottom of the lower clamp, the bolt A is arranged at the bottom of the lower clamp, the top of the bolt A penetrates through the lower clamp, the upper clamp is arranged at the top of the bolt A, the upper clamp is matched with the bolt A and the nut A in design, a cable can be tightly clamped, the cable is prevented from loosening easily in the using process, the anti-slip protrusions in an anti-slip structure are tightly contacted with the cable, friction force is increased, the cable is effectively prevented from sliding, heat generated by electrifying the cable can be effectively prevented from being damaged by a heat-resistant layer and a heat-insulating layer in the anti-slip structure, the heat-insulating layer is further prevented from transferring heat to clamp materials by high temperature, the U-shaped frame, the bolt B and the nut B are fixed, and the nut B is prevented from loosening by a locking pin.

Inventors

  • MO LIHUI
  • Huang Zhuoxin
  • Wang Kangjiao
  • XU LIANG
  • HUANG JINCHENG
  • XU KAI

Assignees

  • 广东通贝电力实业有限公司

Dates

Publication Date
20260508
Application Date
20250515

Claims (7)

  1. 1. Jumper suspension clamp, its characterized in that includes: The device comprises a U-shaped frame (1), wherein a lower wire clamp (7) is arranged at the bottom of the U-shaped frame (1), and a hanging plate (14) is arranged at the bottom of the lower wire clamp (7); The bolt A (10) is arranged at the bottom of the lower wire clamp (7), and the top of the bolt A (10) penetrates through the lower wire clamp (7); The upper wire clamp (6), the upper wire clamp (6) is arranged at the top of the bolt A (10), and a nut A (11) is arranged on the surface of the bolt A (10) inside the upper wire clamp (6); The anti-skid structure (8) is arranged on the inner sides of the upper wire clamp (6) and the lower wire clamp (7), and the anti-skid protrusions (84) of the anti-skid structure (8) are used for contacting the wire clamp, so that friction force is increased.
  2. 2. The jumper suspension clamp according to claim 1, characterized in that the anti-slip structure (8) comprises a heat-resistant layer (83) connected to one side of the anti-slip protrusion (84), one side of the heat-resistant layer (83) is connected with a heat-insulating layer (82), one side of the heat-insulating layer (82) is connected with a bottom layer (81), and the anti-slip structure (8) is connected to the inner sides of the upper clamp (6) and the lower clamp (7) respectively.
  3. 3. Jumper suspension clamp according to claim 1, characterized in that the upper clamp (6) is internally provided with a hollow (9) for mounting a nut a (11).
  4. 4. The jumper suspension clamp according to claim 1, characterized in that one side of the U-shaped frame (1) is connected with a bolt B (2), and the bolt B (2) penetrates through the U-shaped frame (1) and then is connected with a nut B (3).
  5. 5. The jumper suspension clamp according to claim 4, characterized in that a through hole (5) is provided at one end of the bolt B (2), and a closed pin (4) is connected to the inside of the through hole (5).
  6. 6. Jumper suspension clamp according to claim 1, characterized in that the surface of the suspension plate (14) is provided with through holes (13).
  7. 7. Jumper suspension clamp according to claim 1, characterized in that the surface of the bolt a (10) is connected with a non-slip pad (12) under the lower clamp (7).

Description

Jumper suspension clamp Technical Field The utility model relates to the technical field of cable fixing, in particular to a jumper suspension clamp. Background The jumper suspension clamp is used for a jumper suspension insulator string in a power transmission line corner tower of 220kV or below, and is mainly used for holding a jumper in a line, suspending the jumper on a tower, and balancing weights through connecting a weight piece, controlling wind deflection and swing of a wire, ensuring safe insulation gap distance between the jumper and the tower, and preventing the swing fatigue and strand breakage of the jumper. In the prior art, when part of jumper suspension clamps clamp cables, only a simple clamp structure is relied on, and a special anti-slip structure is lacked, so that the cables are easy to loosen under the influence of external environment factors (such as wind blowing and vibration) in the long-term use process, the loosened cables not only can cause unstable power transmission, but also can cause cable sheath abrasion due to frequent shaking, further safety accidents such as short circuit and the like are caused, and the safety operation of a power system is seriously threatened. In view of this, we have pushed out jumper suspension clamps. Disclosure of utility model The utility model aims to provide a jumper suspension clamp for solving the problems in the background art. The jumper suspension clamp comprises a U-shaped frame, a bolt A and an upper clamp; The bottom of the U-shaped frame is provided with a lower wire clamp, the U-shaped frame and the lower wire clamp are fixedly arranged, the bottom of the lower wire clamp is provided with a hanging plate, and the hanging plate and the lower wire clamp are fixedly arranged; The bolt A is arranged at the bottom of the lower wire clamp, and the top of the bolt A penetrates through the lower wire clamp; The upper wire clamp is arranged at the top of the bolt A, the upper wire clamp is in threaded connection with the bolt A, a nut A is arranged on the surface of the bolt A in the upper wire clamp, and an operator can adjust the tightness of the nut A and the bolt A through the empty slot so as to adapt to cables with different sizes; the anti-skid structure is arranged on the inner sides of the upper wire clamp and the lower wire clamp, and the anti-skid protrusions of the anti-skid structure are used for contacting the wires, so that friction force is increased. Preferably, the anti-slip structure comprises a heat-resistant layer connected with one side of the anti-slip protrusion, the heat-resistant layer can resist heat generated by a cable in the electrifying process, the performance reduction of a clamp body material caused by high temperature is avoided, one side of the heat-resistant layer is connected with a heat-insulating layer, the heat-insulating layer further prevents heat transfer, a bottom layer and the whole clamp body structure are protected, one side of the heat-insulating layer is connected with the bottom layer, the bottom layer provides basic support for the anti-slip structure, the stability and the reliability of the whole anti-slip structure are ensured, and the anti-slip structure is respectively connected with the inner sides of an upper clamp and a lower clamp. Preferably, the hollow groove for installing the nut A is formed in the upper wire clamp, and the hollow groove and the upper wire clamp are integrally formed. Preferably, one side of the U-shaped frame is connected with a bolt B, and the bolt B penetrates through the U-shaped frame and then is connected with a nut B, and the nut B is conveniently fixed on an external object on the surface of the bolt B. Preferably, a through hole is formed in one end of the bolt B, the through hole and the bolt B are integrally formed, a closed pin is connected to the through hole, and the nut B can be further fixed through the arrangement of the closed pin. Preferably, the surface of the hanging plate is provided with a through hole, and the through hole and the hanging plate are integrally formed. Preferably, the surface of the bolt A is connected with an anti-slip pad below the lower wire clamp, and the anti-slip pad further enhances the friction force between the lower wire clamp and the cable and prevents the cable from sliding off from the lower wire clamp. Compared with the prior art, the utility model has the beneficial effects that: (1) The cable can be tightly clamped through the design that the upper wire clamp and the lower wire clamp are matched with the bolt A and the nut A, so that the cable is prevented from loosening easily in the use process, the anti-slip protrusions in the anti-slip structure are tightly contacted with the cable, the friction force is increased, the cable is effectively prevented from sliding, the stability of the cable in the power transmission process is ensured, and the potential safety hazard caused by loosening of the cable is re