CN209913456U

CN209913456U - Anti-drop device based on overhead line

Info

Publication number: CN209913456U
Application number: CN201921219299.4U
Authority: CN
Inventors: 赵显�; 张超; 张杨; 王辉; 于水良; 王志卫; 刘志; 姜南; 王柏; 王文骞
Original assignee: Hebei Chenrui Electric Power Engineering Co Ltd
Current assignee: Hebei Chenrui Electric Power Engineering Co Ltd
Priority date: 2019-07-31
Filing date: 2019-07-31
Publication date: 2020-01-07
Anticipated expiration: 2029-07-31

Abstract

The utility model relates to the technical field of power transmission and distribution, in particular to an anti-drop device based on an overhead line, which comprises two wire rods, wherein one side of the two wire rods is provided with a fixing clamp, one side of the fixing clamp is provided with a cable, a pre-twisted wire strain clamp is arranged between the cable and one side of the fixing clamp, the pre-twisted wire strain clamp comprises an annular stop block, a U-shaped joint and a pre-twisted wire, one side of the U-shaped joint is provided with two opposite insulating ropes, one end of each insulating rope is provided with an alarm switch, one side of the annular stop block is provided with an insulating slip ring, one side of the insulating slip ring is provided with a buffering pull rope, one end of the buffering pull rope is provided with a mounting plate, one side of the mounting plate is provided with a rope coiling disc, through the improvement of the utility model, the bending grounding or swinging of the overlong broken wire cable is effectively prevented, is suitable for popularization.

Description

Anti-drop device based on overhead line

Technical Field

The utility model relates to a power transmission and distribution technical field especially relates to a prevent falling traditional thread binding putting based on overhead line.

Background

Electric power is used as a power energy driven by modern equipment, and is widely applied to various industries along with the development and progress of science and technology. The most closely related of people is household electricity, in China, the voltage of the household electricity is generally 220V, the voltage transmitted by a power plant can reach more than 10KV, and the processes of power transmission and distribution, transformation and conversion and the like are performed in the middle. Generally, power transmission and distribution are carried out by using overhead lines, i.e. power transmission and distribution conductors are supported by overhead towers or poles, and are led to areas needing power transmission through fixed-point towers or poles. In the process, the overhead line and the ground move simultaneously without mutual interference. However, once the overhead line is broken by natural disasters such as lightning stroke and hail or fatigue abrasion of the overhead line, the power supply is not cut off in time, and a fatal electric shock accident or even a fire disaster is easily caused due to the effect of high voltage breakdown air or step voltage. Therefore, there is a need for a device that can effectively prevent the overhead line from falling to the ground when the overhead line is broken. To this end, chinese patent application No. CN201720234464.8 provides a solution, namely, an overhead wire near the front side of a wire pole is provided with a pre-twisted wire strain clamp to fix a wire on the wire pole, then the pre-twisted wire at the upper end of the wire is tensioned through an insulating rope, the other end of the insulating rope is connected with an alarm, and the wire is pulled under the common effect of the insulating rope and the strain clamp when the wire is broken, so as to prevent the wire from dropping. Although this approach solves the problem of preventing dropping to some extent, it also has disadvantages: firstly, if the distance between the suspension point and the strain clamp at one end is longer, the gravity at the end part is larger, and the suspension point is easy to bend to land or is closer to the ground due to lack of supporting force; second, the wire will swing when broken, affecting the adjacent wires around. Therefore, the utility model provides an prevent falling traditional thread binding putting and solve above-mentioned problem based on overhead line.

SUMMERY OF THE UTILITY MODEL

The utility model aims at solving the problem that the power failure part is easy to bend and land in the prior art, and providing a wire falling prevention device based on an overhead line.

In order to achieve the above purpose, the utility model adopts the following technical scheme:

designing an anti-drop device based on an overhead line, comprising two adjacent wire rods, wherein one side of each of the two wire rods is provided with a fixing clamp, a cable is arranged between one sides of the fixing clamps, a pre-twisted wire strain clamp is arranged between the cable and one side of the fixing clamp, the pre-twisted wire strain clamp comprises an annular stop block, a U-shaped joint and a pre-twisted wire fixed between one side of the U-shaped joint and one side of the U-shaped joint, two opposite insulating ropes are fixedly wound on one side of the U-shaped joint, one end of each insulating rope, far away from the U-shaped joint, is provided with an alarm switch, the alarm switch is fixed on the outer side of the wire rod, one side of the annular stop block, far away from the pre-twisted wire, is provided with an insulating sliding ring, one side of the insulating sliding ring is fixedly provided with a buffering pull rope, one end of each buffering pull rope, far away from the insulating, the mounting panel rigid coupling in two between solid fixed ring one side, one side of mounting panel rotate through the pivot connect be equipped with buffering stay cord assorted serving reel, the one end of pivot is equipped with the fixed disk, the fixed disk with be equipped with buffering torsion spring between one side of mounting panel.

Preferably, an extension fixing rod is arranged between the pre-twisted wire strain clamp and one side of the fixing clamp, and a plurality of insulators capable of bearing transverse tension are arranged on the outer side of the extension fixing rod.

Preferably, a winding part is fixedly arranged on the upper side of the insulating slip ring, and the winding part is fixedly connected with one end of the buffering pull rope in a hanging manner.

Preferably, the alarm matched with the alarm switch is fixedly arranged on one side of the bottom of the alarm switch, the buffering pull rope is formed by twisting and compounding a plurality of nylon insulating ropes with certain flexibility, and the insulating ropes are made of high-strength aramid fiber materials.

The utility model provides a prevent falling traditional thread binding putting based on overhead line, beneficial effect lies in: through the fixing clamps at the two ends of the wire rod and the pre-twisted wire strain clamp in the middle of the fixing clamps, the cable can be fixed transversely, good insulation is formed between the current-carrying conducting wire and the grounding body through the arrangement of the insulator on the extension rod, and meanwhile, certain mechanical load or overvoltage impact is borne. Through preformed armor rods, the insulating rope, the setting and the cooperation of alarm switch and siren, play taut effect to the cable of being close to the broken string of tip, insulating rope pulling switch reports to the police simultaneously, when keeping away from the far away broken string of preformed armor rods strain clamp, broken string cable tip tenesmus, make insulating sliding ring remove certain distance along the cable under buffering stay cord and torsion spring's effect, because at sliding ring atress at the removal in-process atress crescent, so can stop in broken string cable certain department, because the distance of stay cord effect is than far away like this, make broken string department bending degree little, and then prevent to fall to the ground, owing to receive certain buffer power simultaneously, its swing is strikeed and is absorbed partly, so can not cause great influence to peripheral cable, overall structure is simple and practical, and is suitable for promoting.

Drawings

Fig. 1 is a schematic axial-side structure diagram of an anti-drop device based on an overhead line according to the present invention;

fig. 2 is the utility model provides a lateral part structure schematic diagram of an anti-drop device based on overhead line.

In the figure: the cable comprises a wire rod 1, a fixing clamp 2, a cable 3, a preformed armor rod strain clamp 4, an annular stop block 41, a U-shaped joint 42, an insulating rope 5, an alarm switch 6, an alarm 61, an insulating slide ring 7, a winding part 71, a fixing ring 8, a mounting plate 9, a rope coiling disc 10, a fixing disc 11, a buffering torsion spring 12, a buffering pull rope 13 and an insulator 14.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments.

Referring to fig. 1-2, an anti-drop device based on an overhead line comprises two adjacent wire rods 1, wherein one side of each of the two wire rods 1 is detachably connected with a fixing clamp 2 through a bolt, a cable 3 is arranged between one sides of the fixing clamps 2, a pre-twisted wire tension clamp 4 is arranged between the cable 3 and one side of each fixing clamp 2, the pre-twisted wire tension clamp 4 provides transverse tension and bears certain tension, the pre-twisted wire tension clamp 4 comprises an annular stop block 41, a U-shaped joint 42 and a pre-twisted wire fixed between one side of the annular stop block and the U-shaped joint 42, the pre-twisted wire is folded and wound on the outer side of a connecting column of the U-shaped joint 42, two opposite insulating ropes 5 are fixedly wound on one side of the U-shaped joint 42, an alarm switch 6 is arranged at one end of the insulating rope 5, which is far away from the U-shaped joint 42, the alarm switch 6 is fixed on the outer side of the wire rods 1, one side that the preformed armor rod was kept away from to annular dog 41 is equipped with insulating sliding ring 7, the fixed buffering stay cord 13 that is equipped with in one side of insulating sliding ring 7, the one end that insulating sliding ring 7 was kept away from to buffering stay cord 13 is equipped with mounting panel 9, the upper and lower both sides of siren switch 6 all are equipped with a solid fixed ring 8, the solid fixed ring 8 in bottom one side be equipped with insulating rope 5 assorted perforation, mounting panel 9 rigid coupling is between two solid fixed ring 8 one sides, one side of mounting panel 9 is rotated through the pivot and is connected and be equipped with and cushion stay cord 13 assorted serving as a contrast reel 10, the one end of pivot is equipped with fixed disk 11, be equipped with buffering torsion spring 12 between one side of fixed disk 11 and mounting panel 9, through serving as a reel 10, buffering stay cord 13 and buffering torsion spring 12.

The utility model discloses in, be equipped with between one side of preformed armor rod strain clamp 4 and fixation clamp 2 and extend the dead lever, the outside of extending the dead lever is equipped with a plurality of and can bear horizontal tensile insulator 14, and certain overvoltage load and impact can be born in the setting of insulator 14, and insulating sliding ring 7's upside is fixed and is equipped with winding portion 71, and winding portion 71 is fixed through articulating with the one end of buffering stay cord 13, and the structure is firm.

The fixed siren 61 rather than the assorted that is equipped with in bottom one side of siren switch 6, buffering stay cord 13 adopts many to have the insulating rope twisting complex of certain flexible polyamide fibre to make, and insulating rope 5 adopts the high strength aramid fiber material to make, and overall structure is simple and practical, is fit for promoting.

The above, only be the concrete implementation of the preferred embodiment of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art is in the technical scope of the present invention, according to the technical solution of the present invention and the utility model, the concept of which is equivalent to replace or change, should be covered within the protection scope of the present invention.

Claims

1. An anti-drop device based on an overhead line comprises two adjacent line rods (1), wherein one side of each of the two adjacent line rods (1) is provided with a fixing clamp (2), a cable (3) is arranged between one sides of the fixing clamps (2), the anti-drop device is characterized in that a pre-twisted wire strain clamp (4) is arranged between the cable (3) and one side of each of the fixing clamps (2), each pre-twisted wire strain clamp (4) comprises an annular stop block (41), a U-shaped joint (42) and a pre-twisted wire fixed between one sides of the annular stop blocks and the U-shaped joint, two opposite insulating ropes (5) are fixedly wound on one side of the U-shaped joint (42), an alarm switch (6) is arranged at one end, far away from the U-shaped joint (42), of each insulating rope (5), the alarm switch (6) is fixed on the outer side of each line rod (1), and an insulating slip ring (7) is arranged at one side, far away from the pre-twisted wire, of each annular, fixed buffering stay cord (13) that is equipped with in one side of insulating sliding ring (7), keep away from buffering stay cord (13) the one end of insulating sliding ring (7) is equipped with mounting panel (9), the upper and lower both sides of siren switch (6) all are equipped with one and fix solid ring (8), mounting panel (9) rigid coupling in two between solid ring (8) one side, one side of mounting panel (9) rotate through the pivot connect be equipped with buffering stay cord (13) assorted serving reel (10), the one end of pivot is equipped with fixed disk (11), fixed disk (11) with be equipped with buffering torsion spring (12) between one side of mounting panel (9).

2. The overhead line-based drop-proof device according to claim 1, wherein an extension fixing rod is arranged between the pre-twisted wire strain clamp (4) and one side of the fixing clamp (2), and a plurality of insulators (14) capable of bearing transverse tension are arranged on the outer side of the extension fixing rod.

3. The overhead line-based line drop prevention device according to claim 1, wherein a winding part (71) is fixedly arranged on the upper side of the insulating slip ring (7), and the winding part (71) is fixedly connected with one end of the buffering pull rope (13) in a hanging manner.

4. The overhead line-based drop wire prevention device according to claim 1, wherein an alarm (61) matched with the alarm switch (6) is fixedly arranged on one side of the bottom of the alarm switch, the buffering pull rope (13) is formed by twisting and compounding a plurality of flexible nylon insulating ropes, and the insulating rope (5) is made of high-strength aramid fiber.