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CN-224214115-U - Small ladder stand for getting off line

CN224214115UCN 224214115 UCN224214115 UCN 224214115UCN-224214115-U

Abstract

The utility model discloses a small off-line crawling ladder, which belongs to the technical field of line maintenance and comprises a main body structure and a hook structure, wherein the main body structure consists of an insulating pedal and a first connecting belt, a second connecting belt and a third connecting belt are respectively arranged at the top and the bottom of the insulating pedal, a tightener is arranged at one side of the second connecting belt far away from the first connecting belt, the hook structure consists of a connecting ring, a hook and a self-locking device, the connecting ring is arranged at the bottom of the inner side of the third connecting belt, and the hook is arranged at the bottom of the outer surface of the connecting ring. The small ladder stand has the advantages of convenience in carrying, simple structure, high strength, low cost, light weight, simplicity in operation, long service life, simplicity and convenience in processing and the like, materials are easy to find, processing is simple and convenient, an operator hangs a hook to a pole tower cross arm insulator hanging part after climbing a tower during use, a main body structure is placed at a wire, an maintainer is up and down from the position, and the phenomenon that the maintainer steps on an insulator umbrella skirt and a equalizing ring during maintenance is avoided.

Inventors

  • Fang Yuanhu
  • YU BAOJUN
  • LIU HENGGUANG
  • FANG YANING
  • SUN ZONGQIAN

Assignees

  • 邹平县宏利热电有限公司
  • 山东宏桥新型材料有限公司

Dates

Publication Date
20260508
Application Date
20250228

Claims (8)

  1. 1. The small off-line ladder stand is characterized by comprising a main body structure and a hook structure, wherein the main body structure consists of an insulating pedal (1) and a first connecting belt (2); the top and the bottom of the insulating pedal (1) are respectively provided with a second connecting belt (3) and a third connecting belt (5), and one side, far away from the first connecting belt (2), of the second connecting belt (3) is provided with a tightener (4); The hook structure comprises a connecting ring (6), a hook (7) and a self-locking device (8), wherein the connecting ring (6) is arranged at the bottom of the inner side of the third connecting belt (5), the hook (7) is arranged at the bottom of the outer surface of the connecting ring (6), and the self-locking device (8) is arranged at the inner side of the hook (7).
  2. 2. The small off-line ladder stand according to claim 1, characterized in that the number of the insulating pedals (1) is a plurality of the same as the size and the shape, and the number of the first connecting bands (2) is the number of the insulating pedals (1) minus one.
  3. 3. The small off-line ladder stand according to claim 2, wherein a stepping part is arranged in the middle of the inside of the insulating pedal (1), and fixing holes are formed in the top and the bottom of the inside of the insulating pedal (1).
  4. 4. The small off-line ladder stand according to claim 3, wherein the first connecting belt (2), the second connecting belt (3) and the third connecting belt (5) are respectively arranged at the inner sides of the corresponding fixing holes, and a plurality of the insulating pedals (1) are connected with the first connecting belt (2) through the fixing holes.
  5. 5. The off-line small cat ladder according to claim 1, characterized in that the hook (7) is movably connected with the third connecting belt (5) through the connecting ring (6), the self-locking device (8) comprises a pin shaft and a baffle, the pin shaft is arranged in the hook (7) and both ends of the pin shaft extend to the outside of the hook (7), and the baffle is arranged in the inner side of the hook (7) and both ends of the baffle are respectively connected with both ends of the pin shaft.
  6. 6. The small off-line ladder stand according to claim 5, characterized in that a torsion spring connected with the pin shaft is arranged in the hook (7), a sufficient movable space is reserved on one side, close to the pin shaft, of the baffle plate, and the baffle plate is abutted against the inner side of the hook (7) under the action of the torsion spring.
  7. 7. The low-line small cat ladder according to claim 6, characterized in that the hook structure further comprises an unlocking device (9), the unlocking device (9) is composed of two pull tabs and pull rods, the number of the pull tabs is two, the pull tabs are respectively arranged on the opposite sides of the outer surfaces of the baffle, and the pull rods are arranged between the opposite sides of the pull tabs.
  8. 8. The off-line small cat ladder according to claim 7, characterized in that a clamping bar attached to the outer surface of the hook (7) is further arranged between the opposite sides of the unlocking device (9), and the pull tab corresponds to the position of the baffle.

Description

Small ladder stand for getting off line Technical Field The utility model relates to the technical field of line overhaul, in particular to a small off-line crawling ladder. Background The circuit maintenance is used for carrying out work aiming at eliminating defects, improving the health level of equipment, preventing accidents and guaranteeing the safe operation of the circuit according to the problems found by inspection, detection and test, the importance of the circuit maintenance is mainly that potential faults are prevented, the potential safety hazards can be timely found and processed through regular maintenance, so that power failure accidents caused by sudden faults are avoided, the service life of the equipment is prolonged, the regular maintenance is not only beneficial to finding potential problems, but also necessary maintenance and maintenance can be carried out on the equipment, the aging speed of the equipment is slowed down, the service life is prolonged, a great amount of equipment replacement cost is saved for an electric power department, the safety of the system is improved, the safety of the electric power circuit is an important component of the whole electric power system, the stable operation of the whole electric power system is directly related to the safety of the electric power system, and the normal operation of the circuit can be guaranteed through regular maintenance, so that the safety of the whole electric power system is improved. When the line is overhauled, as the branch insulator string is approximately 3 meters long, an overhauler tramples the insulator umbrella skirt and the equalizing ring when the line is overhauled, the umbrella skirt and the equalizing ring are often damaged, the whole creepage distance of the insulator is reduced, the induced voltages at the two ends of the insulator are unevenly distributed, the hidden danger is extremely easy to cause the insulator to flashover, break down, discharge and ground, the line is tripped, and particularly, the important contact line trip is easy to cause the unbalance of the area, and the great production loss is caused. Disclosure of utility model In order to solve the problem of trampling damage of an insulator umbrella skirt and a grading ring in the line maintenance process, the utility model provides a small line climbing ladder, which has the following technical scheme: the small off-line ladder comprises a main body structure and a hook structure, wherein the main body structure consists of an insulating pedal and a first connecting belt; The top and the bottom of the insulating pedal are respectively provided with a second connecting belt and a third connecting belt, and one side of the second connecting belt far away from the first connecting belt is provided with a tightener; The hook structure comprises a connecting ring, a hook and a self-locking device, wherein the connecting ring is arranged at the bottom of the inner side of the third connecting belt, the hook is arranged at the bottom of the outer surface of the connecting ring, and the self-locking device is arranged at the inner side of the hook. Preferably, the number of the insulating pedals is a plurality, the sizes and the shapes of the insulating pedals are the same, and the number of the first connecting bands is the number of the insulating pedals minus one. Preferably, the middle of the inside of the insulating pedal is provided with a treading part, and the top and the bottom of the inside of the insulating pedal are provided with fixing holes. Preferably, the first connecting belt, the second connecting belt and the third connecting belt are respectively arranged at the inner sides of the corresponding fixing holes, and the insulating pedals are connected with the first connecting belt through the fixing holes. Preferably, the hook is movably connected with the third connecting belt through a connecting ring, the self-locking device comprises a pin shaft and baffle plates, the pin shaft is arranged in the hook, two ends of the pin shaft extend to the outside of the hook, and the baffle plates are arranged on the inner side of the hook, and two ends of the baffle plates are respectively connected with two ends of the pin shaft. Preferably, a torsion spring connected with the pin shaft is arranged in the hook, a sufficient movable space is reserved on one side, close to the pin shaft, of the baffle plate, and the baffle plate is abutted to the inner side of the hook under the action of the torsion spring. Preferably, the hook structure further comprises an unlocking device, the unlocking device is composed of two pull tabs and pull rods, the two pull tabs are respectively arranged on the opposite sides of the outer surface of the baffle, and the pull rods are arranged between the opposite sides of the pull tabs. Preferably, a clamping bar attached to the outer surface of the hook is further arranged between the opposite sides of the unloc