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CN-121983797-A - Low-resistance parallel groove clamp and clamp mounting structure

CN121983797ACN 121983797 ACN121983797 ACN 121983797ACN-121983797-A

Abstract

The invention provides a low-resistance parallel groove wire clamp and a wire clamp mounting structure, which relate to the technical field of parallel groove wire clamps and comprise a lower clamping plate, wherein an upper clamping plate is clamped on the upper surface of the lower clamping plate, a fixing pin is inserted in the center of the upper clamping plate, limiting holes are formed in two sides of the surface of the fixing pin, a trigger mechanism is arranged in the upper clamping plate, a transmission mechanism is arranged at the bottom of the lower clamping plate, a locking mechanism is arranged in the lower clamping plate, the trigger mechanism comprises an air cavity, the upper end in the air cavity is slidably connected with a movable plate, top blocks are slidably connected in the side walls of two ends of the movable plate, the trigger mechanism is arranged, clamping pressure change caused by loosening of a wire can be automatically sensed, the mechanical signal is converted into an electric control signal, the locking mechanism is automatically started to compensate the clamping force, the problem that the contact resistance of the traditional wire clamp is increased due to long-term running looseness is effectively avoided, and the long-term electrical stability and safety of a connecting point are fundamentally improved.

Inventors

  • ZHENG QIAN
  • FANG WEI
  • REN YONGQIONG
  • YE BINGXIN
  • ZHANG GUANGWEI
  • Ao Yuda
  • LIN QIANQIAN

Assignees

  • 永固集团股份有限公司

Dates

Publication Date
20260505
Application Date
20260310

Claims (10)

  1. 1. The low-resistance parallel groove clamp and clamp mounting structure is characterized by comprising a lower clamp plate (1), wherein an upper clamp plate (2) is clamped on the upper surface of the lower clamp plate (1), a fixing pin (3) is inserted in the center of the upper clamp plate (2), limiting holes (6) are formed in two sides of the surface of the fixing pin (3), a triggering mechanism (7) is arranged in the upper clamp plate (2), a transmission mechanism (8) is arranged at the bottom of the lower clamp plate (1), and a locking mechanism (9) is arranged in the lower clamp plate (1); The triggering mechanism (7) comprises an air cavity (705), wherein the upper end inside the air cavity (705) is connected with a movable plate (708) in a sliding manner, the inner parts of the side walls of the two ends of the movable plate (708) are connected with top blocks (710) in a sliding manner, and the two sides of the air cavity (705) are fixedly connected with contact blocks (712); The transmission mechanism (8) comprises a moving plate (806), the back surface of the moving plate (806) is fixedly connected with a connecting rod (805), one end, far away from the moving plate (806), of the connecting rod (805) is rotationally connected with a movable connecting rod (804), one end, far away from the connecting rod (805), of the movable connecting rod (804) is rotationally connected with a rotating shaft (803), and the side surface of the rotating shaft (803) is fixedly connected with a rack (801); The locking mechanism (9) comprises a rotating wheel (903), a lead screw (902) is fixedly connected to the circle center of the rotating wheel (903), a moving block (904) is meshed with the surface of the lead screw (902), a clamping block (905) is rotatably connected to the inner part of the moving block (904), and the clamping block (905) is clamped in the limiting hole (6).
  2. 2. The low-resistance parallel groove clamp and clamp mounting structure according to claim 1, wherein the air cavity (705) is formed in the upper clamp plate (2), a movable groove (701) is formed in the lower end of the upper clamp plate (2) located in the air cavity (705), an elastic cavity (702) is fixedly connected to the inner portion of the movable groove (701), a contact plate (703) is fixedly connected to the bottom of the elastic cavity (702), an ejection spring (704) is fixedly connected to the upper surface of the contact plate (703), a piston (706) is slidably connected to the lower end of the inner portion of the air cavity (705), a supporting rod (707) is fixedly connected to the upper surface of the piston (706), a transverse groove (709) is formed in the surface of two sides of the movable plate (708), a compression spring (711) is slidably connected to the inner portion of the transverse groove (709), and a compression spring (711) is fixedly connected to the surface of the top block (710) located on one side of the bottom of the transverse groove (709).
  3. 3. The low-resistance parallel groove clamp and clamp mounting structure according to claim 1, wherein a limiting block (802) is clamped inside the side wall of the rack (801), a sliding rod (807) is connected inside the moving plate (806) in a sliding mode, a connecting spring (808) is wound on the surface of the sliding rod (807), an electromagnetic block (809) is fixedly connected inside the moving plate (806), and a fixing plate (810) is fixedly connected to the end portion of the sliding rod (807).
  4. 4. The low-resistance parallel groove clamp and clamp mounting structure according to claim 1, wherein a vertical groove (901) is formed in the lower clamp plate (1), the screw rod (902) is rotatably connected in the vertical groove (901), the clamping block (905) is rotatably connected in the moving block (904) through a rotating shaft, and a torsion spring (906) is fixedly connected in the rotating shaft.
  5. 5. The low-resistance parallel groove clamp and clamp mounting structure according to claim 3, wherein a reset spring (4) is fixedly connected to the lower surface of the fixing pin (3), a gasket (5) is fixedly connected to the lower side of the reset spring (4), a connecting column (10) is fixedly connected to the lower surface of the upper clamping plate (2), and a metal contact (11) is arranged on the upper surface of one side, close to the connecting column (10), of the lower clamping plate (1).
  6. 6. The low-resistance parallel groove clamp and clamp mounting structure according to claim 4, wherein four through holes are formed in the surface of the lower clamp plate (1), the number of the upper clamp plate (2) is four, the width of the upper clamp plate (2) is one fourth of the width of the lower clamp plate (1), through holes are formed in the surface of the upper clamp plate (2), the through holes in the surface of the upper clamp plate (2) are coaxial with the through holes formed in the surface of the lower clamp plate (1), and the fixing pins (3) are inserted into the through holes.
  7. 7. The parallel groove clamp and clamp mounting structure according to claim 2, wherein the elastic cavity (702) is communicated with the air cavity (705), and the diameter of the piston (706) is the same as the diameter of the inner lower end of the air cavity (705).
  8. 8. The low-resistance parallel groove clamp and clamp mounting structure according to claim 2, wherein the air cavity (705) is a T-shaped groove with a wide upper part and a narrow lower part, a groove is formed in the lower half part of the wider upper end of the air cavity (705), and the contact block (712) is fixedly connected inside the groove.
  9. 9. The parallel groove clamp and clamp mounting structure with low resistance according to claim 5, wherein a metal sheet is fixedly connected to the inside of the top block (710), an internal power supply is fixedly connected to the inside of the upper clamping plate (2), the top block (710) is connected with the internal power supply through a wire, and the contact block (712) is connected with the connecting column (10) through a wire.
  10. 10. The low-resistance parallel groove clamp and clamp mounting structure according to claim 5, wherein the lower clamping plate (1) is provided with a circular groove at the lower side of the connecting column (10), the metal contact (11) is attached to the inner wall of the circular groove, and the metal contact (11) is connected with the electromagnetic block (809) through an electric wire.

Description

Low-resistance parallel groove clamp and clamp mounting structure Technical Field The invention relates to the technical field of parallel groove clamps, in particular to a low-resistance parallel groove clamp and a clamp mounting structure. Background In the construction and operation maintenance of a power line, a parallel groove clamp is a key device for realizing electric connection and mechanical fixation between cables, and has the basic functions of reliably clamping two or more cables together, ensuring that current can pass through a connecting point with low resistance and stability, being an important accessory for cable connection, currently, a common parallel groove clamp mainly depends on a bolt fastening or wedge-shaped self-locking structure to realize initial clamping, the bolt fastening clamp generates pressure by screwing a bolt, the structure is simple, but the pressure is easily influenced by installation torque and later thermal cycle, and a wedge clamp utilizes an inclined plane principle to wedge a wedge block by knocking or pulling during installation, so that the parallel groove clamp has certain self-adaptability. However, in the prior art, the wires may creep or loosen during operation due to factors such as load change, environmental temperature fluctuation, breeze vibration, etc., so that the contact pressure between the wire clamp and the wires is reduced, the contact resistance is increased, which not only causes overheat of the connection point and increase of electric energy loss, but also may cause fusing or fire accident in serious cases, the existing parallel groove wire clamp cannot monitor the connection state in real time, the operation and maintenance personnel are required to carry out inspection and manual fastening regularly, so that not only are the maintenance cost and the working strength increased, but also the timeliness and the safety of implementing manual maintenance are difficult to ensure in some unattended sections with complex terrains and severe environments, and therefore, an intelligent wire clamp structure capable of sensing the connection state in real time and automatically compensating the clamping force when loosening occurs is needed. Disclosure of Invention The invention solves the problems set forth in the background art by sensing the connection state in real time and automatically compensating the clamping force when loosening occurs. In order to achieve the aim, the low-resistance parallel groove wire clamp and wire clamp mounting structure comprises a lower clamping plate, wherein an upper clamping plate is clamped on the upper surface of the lower clamping plate, a fixing pin is inserted in the center of the upper clamping plate, limiting holes are formed in two sides of the surface of the fixing pin, a triggering mechanism is arranged in the upper clamping plate, a transmission mechanism is arranged at the bottom of the lower clamping plate, and a locking mechanism is arranged in the lower clamping plate; The triggering mechanism comprises an air cavity, wherein the upper end inside the air cavity is connected with a movable plate in a sliding manner, the inner parts of the side walls of the two ends of the movable plate are connected with jacking blocks in a sliding manner, and the two sides of the air cavity are fixedly connected with contact blocks; The transmission mechanism comprises a moving plate, a connecting rod is fixedly connected to the back surface of the moving plate, one end, far away from the moving plate, of the connecting rod is rotationally connected with a movable connecting rod, one end, far away from the connecting rod, of the movable connecting rod is rotationally connected with a rotating shaft, and a rack is fixedly connected to the side surface of the rotating shaft; the locking mechanism comprises a rotating wheel, a lead screw is fixedly connected to the circle center of the rotating wheel, a moving block is meshed with the surface of the lead screw, a clamping block is rotatably connected to the inner part of the moving block, and the clamping block is clamped in the limiting hole. Preferably, the inside at the punch holder is seted up to the air cavity, the movable groove has been seted up to the lower extreme that the punch holder is located the air cavity, the inside fixedly connected with elastic chamber in movable groove, the bottom fixedly connected with contact plate in elastic chamber, the last fixedly connected with ejection spring of contact plate, the inside lower extreme sliding connection in air cavity has the piston, the last fixedly connected with branch of piston, movable plate fixed connection is on the top of branch, the transverse groove has been seted up on the surface of movable plate both sides, kicking block sliding connection is in the inside in transverse groove, the fixed surface of kicking block in transverse groove bottom one side has compression spring. Preferably, the inside jo