Emergency treatment insulator for conductor shedding

Abstract

The application discloses an emergency treatment insulator for conductor falling, and relates to the technical field of emergency insulators, which comprises an insulator, a cross arm connecting part and a conductor connecting part, the left clamping column and the right clamping column of the conductor connecting part are fixedly connected to one end of the insulator, an oscillating lever is elastically connected to the left clamping column, the oscillating stroke of the oscillating lever has an abutting position for abutting against the limiting block on the right clamping column, a supporting plate is axially slidably connected to the left clamping column and / or the right clamping column, and the supporting plate is subjected to a vertical elastic force towards the oscillating lever, a one-way tooth row is transversely elastically and slidably connected to the inner cavity of the left clamping column, and the sliding stroke of the one-way tooth row has a clamping position for clamping the one-way clamping tooth on the supporting plate. The conductor connecting part can conveniently connect the fallen conductor with the insulator, and the conductor can be gradually clamped by the conductor clamping part in the case of violent shaking, so that the repeated friction between the conductor and the conductor connecting part is weakened or even avoided, and the conductor is protected.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of emergency insulators, in particular to an emergency handling insulator for wire falling. BACKGROUND

[0002] In power transmission lines, insulators are the core components for fixing and insulating wires, and are widely used in the connection between towers and wires of overhead transmission lines. In actual operation, insulators may fail due to fatigue, installation deviation, external force impact or extreme weather, etc., resulting in connection structure failure, fracture and other faults, and further leading to wire falling. Wire falling not only causes interruption of power transmission lines, affecting industrial production and residential electricity, but also may cause equipment damage, line short circuit and even personal safety accidents. Subsequent repair work needs to be operated with power off, which is time-consuming and laborious and causes significant economic loss.

[0003] Currently, the treatment of wire falling mainly relies on subsequent repair, in which temporary insulators are installed on cross arms to fix the fallen wires to the temporary insulators. The top of the mainstream insulator is a steel cap with a wire groove structure, and the wire needs to be clamped by a wire clamp or tied to the insulator by a rope after being placed in the wire groove. For example, the patent with publication number CN218768909U discloses a reinforced insulating hard composite insulator for distribution network, which includes a core rod, an upper end fitting connected to the upper end of the core rod, a bottom fitting connected to the lower end of the core rod for fixed connection with the tower cross arm, a sheath sleeved on the core rod, and a shed group arranged on the sheath. The upper end fitting is connected with a gland for fixing the wire in cooperation with the upper end fitting; the outer surface of the gland is provided with a silica gel protective layer for preventing the wire from being abraded.

[0004] The problem of the above-mentioned prior art is that whether the wire is clamped by a wire clamp or tied by a rope, the repair personnel need to climb the tower or the pole to the cross arm for operation, which is not convenient to operate, takes a long time, prolongs the power-off time, and increases the safety hazards of the repair personnel. SUMMARY

[0005] The present application aims to provide an emergency handling insulator for wire falling, to solve the problems of inconvenient connection between the wire and the temporary insulator, time-consuming and poor safety in the prior art.

[0006] In order to achieve the above object, the application provides the following technical scheme: a wire shedding emergency handling insulator, comprising an insulator and a wire connecting part, the wire connecting part comprising: a left clamping column and a right clamping column, both fixedly connected to one end of the insulator; a swing rod, elastically swing-connected to the left clamping column, having an abutting station in the swing stroke for abutting against a limiting block on the right clamping column; a supporting plate, slidingly connected to the left clamping column and / or the right clamping column along the axial direction of the insulator, subjected to a vertical elastic force towards the swing rod; a one-way tooth row, transversely and elastically slidingly connected in the inner cavity of the left clamping column, having a clamping station in the sliding stroke for clamping with a one-way clamping tooth on the supporting plate; the swing rod swings under the pressure of the wire and presses the one-way tooth row transversely to slide out of the clamping station through the convex part on the pivot of the swing rod, the supporting plate slides back after being pressed by the wire, until the swing rod is separated from the wire and elastically rotates back to the abutting station, and the one-way tooth row slides back to the clamping station under the action of the transverse elastic force.

[0007] Further, an adaptive pad is arranged between the end of the left clamping column and the right clamping column and the steel cap of the insulator, one side of the adaptive pad is adapted to the left clamping column and the right clamping column, and the other side is adapted to the end of the steel cap away from the insulator, and the left clamping column and the right clamping column are fixedly connected to the adaptive pad and the steel cap through connecting bolts.

[0008] Further, a first compression spring is arranged between the supporting plate and the steel cap, one end of the first compression spring is connected to the supporting plate, and the other end is in abutment with the steel cap after passing through the through hole in the adaptive pad.

[0009] Further, a fixed block with an axial hole is fixedly connected to the left clamping column, the pivot of the swing rod is rotatably arranged in the axial hole, and the limiting block is closer to the supporting plate than the axial hole.

[0010] Further, a torsional spring is sleeved on the pivot of the swing rod, one end of the torsional spring is connected to the swing rod, and the other end is connected to the left clamping column.

[0011] Further, each tooth of the one-way tooth row is inclined towards one side of the insulator and flat away from the other side of the insulator, and the one-way clamping tooth is flat towards one side of the insulator and inclined away from the other side of the insulator.

[0012] Further, a stud is transversely screwed on the left clamping column, and the one-way tooth row is slidingly arranged on the stud.

[0013] Further, a second compression spring is sleeved on the stud, one end of the second compression spring is in abutment with the end cap of the stud, and the other end is in abutment with the one-way tooth row.

[0014] Further, the one-way tooth row has an abutting part for slidingly abutting and cooperating with the convex part.

[0015] Further, the supporting plate is arc-shaped, and the inner arc surface of the supporting plate faces the swing rod.

[0016] Compared with the prior art, the insulator for emergency handling of conductor detachment provided by the present invention can be easily connected to the insulator through the conductor connection part. The detached conductor needs to be guided to the top of the swing rod by the insulating operating rod and then lowered. The swing rod swings to the lower left under the pressure of the conductor. The protrusion on the swing rod's rotating shaft squeezes the one-way toothed row. The one-way toothed row slides laterally and disengages from the one-way locking teeth, thus no longer restricting the movement of the support plate. The conductor then presses against the support plate, causing the support plate to slide downward and retract until the swing rod disengages from the conductor and elastically rotates back to abut against the limiting block. The one-way toothed row slides back to abut against the one-way locking teeth under the action of lateral elasticity. The space enclosed by the left clamp, right clamp, support plate and swing rod provides temporary support for the conductor.

[0017] In calm or low-wind conditions, the conductor remains stable or experiences minimal swaying, resulting in a stable connection between the conductor and the connector. However, in windy conditions, the conductor sways significantly, causing fluctuations in the pressure exerted on the support plate. As the pressure on the support plate decreases, the vertical elastic force forces the plate to push aside the one-way toothed bar and slide towards the swing arm, gradually restricting the conductor's movement until it is clamped. In other words, even under severe swaying, the conductor is gradually clamped by the conductor clamping part, thus reducing or even preventing repeated friction between the conductor and the connector, protecting the conductor. Attached Figure Description

[0018] To provide a clearer description of the technical solutions in the embodiments of this application or the prior art, the accompanying drawings used in the embodiments will be briefly introduced below.

[0019] Figure 1 Schematic diagram of the overall structure provided for the embodiment Figure I ;

[0020] Figure 2 Schematic diagram of the overall structure provided for the embodiment Figure II ;

[0021] Figure 3 A schematic diagram of the wire connection portion provided in the embodiment;

[0022] Figure 4 A top view of the overall structure provided for the embodiment;

[0023] Figure 5 for Figure 4 Structural cross-section along line AA in the middle;

[0024] Figure 6 for Figure 4 Structural cross-section along line BB in the middle;

[0025] Figure 7The structural section view of the erected wire provided for the embodiment;

[0026] Figure 8 The structural schematic view of the left clamping column provided for the embodiment;

[0027] Figure 9 The structural schematic view of the right clamping column provided for the embodiment;

[0028] Figure 10 The connection structural schematic view of the adapting block, the first compression spring and the supporting plate provided for the embodiment;

[0029] Figure 11 The connection structural schematic view of the stud, the second compression spring and the one-way tooth row provided for the embodiment;

[0030] Figure 12 The connection structural schematic view of the swing lever, the torsion spring and the convex part provided for the embodiment.

[0031] Explanation of reference signs:

[0032] 1, wire connecting part; 11, left clamping column; 12, right clamping column; 13, adapting block; 14, swing lever; 15, rotating shaft; 16, convex part; 17, torsion spring; 18, fixed block; 19, limiting block; 110, connecting bolt; 111, supporting plate; 112, one-way clamping tooth; 113, sliding block; 114, sliding groove; 115, first compression spring; 116, stud; 117, one-way tooth row; 118, abutting part; 119, second compression spring; 2, insulator; 21, steel cap; 22, steel foot; 3, cross arm connecting part. DETAILED DESCRIPTION

[0033] In order for those skilled in the art to better understand the technical solutions of the present application, the present application will be further described in detail below with reference to the drawings.

[0034] Please refer to Figures 1-12 The insulator provided by the embodiment of the present application is an insulator for emergency treatment of wire falling, which comprises an insulator 2, a cross arm connecting part 3 and a wire connecting part 1. The cross arm connecting part 3 is fixedly connected to the steel foot 22 of the insulator 2, and the wire connecting part 1 is fixedly connected to the steel cap 21 of the insulator 2. The cross arm connecting part 3 comprises a U-shaped seat capable of being sleeved on a cross arm or a flat iron, and the U-shaped seat is connected to the cross arm or the flat iron through a fastening bolt.

[0035] The wire connecting part 1 comprises a left clamping column 11, a right clamping column 12, an adapting pad 13, a swing lever 14, a supporting plate 111 and a one-way tooth row 117. The left clamping column 11 and the right clamping column 12 are fixedly connected to one end of the insulator 2. The left clamping column 11 is longer than the right clamping column 12. The adapting pad 13 is arranged between the end of the left clamping column 11 and the right clamping column 12 and the steel cap 21 of the insulator 2. One side of the adapting pad 13 is adapted to the left clamping column 11 and the right clamping column 12, and the other side is adapted to the end of the steel cap 21 away from the insulator 2. The convex arc structure on the adapting pad 13 is filled into the concave arc structure on the steel cap 21. The left clamping column 11 and the right clamping column 12 are fixedly connected to the adapting pad 13 and the steel cap 21 through the connecting bolts 110.

[0036] The inner top of the left clamping column 11 is fixedly connected with a fixed block 18 with a shaft hole. The rotating shaft 15 of the swing lever 14 is rotatably arranged in the shaft hole. The swing lever 14 is swingably connected to the left clamping column 11 through the rotating cooperation of the rotating shaft 15 and the shaft hole. The inner side of the right clamping column 12 is fixedly connected with a limiting block 19. The limiting block 19 is closer to the insulator 2 than the shaft hole. A torsional spring 17 is sleeved on the rotating shaft 15 of the swing lever 14. One end of the torsional spring 17 is connected to the swing lever 14, and the other end is connected to the left clamping column 11. When the torsional spring 17 releases the elastic force, the swing lever 14 has an abutting station in the swing stroke. When the swing lever 14 is in the abutting station, the end of the swing lever 14 away from the rotating shaft 15 abuts and cooperates with the limiting block 19 on the right clamping column 12.

[0037] A sliding groove 114 is arranged on the left clamping column 11 and / or the right clamping column 12. A sliding block 113 is arranged on the supporting plate 111. The supporting plate 111 is slidably connected to the left clamping column 11 and / or the right clamping column 12 along the axial direction of the insulator 2 through the sliding cooperation between the sliding block 113 and the sliding groove 114. The supporting plate 111 is located between the left clamping column 11 and the right clamping column 12 in the transverse direction, and is located between the adapting pad 13 and the swing lever 14 in the vertical direction. The supporting plate 111 is arc-shaped, and the inner arc surface of the supporting plate 111 faces the swing lever 14. An antiskid rubber pad is arranged on the inner arc surface of the supporting plate 111. A first compression spring 115 is arranged between the supporting plate 111 and the steel cap 21. One end of the first compression spring 115 is connected to the supporting plate 111, and the other end is connected to the steel cap 21 through a through hole on the adapting pad 13. The first compression spring 115 causes the supporting plate 111 to be subjected to a vertical elastic force towards the swing lever 14. The wire is temporarily connected in the space surrounded by the left clamping column 11, the right clamping column 12, the supporting plate 111 and the swing lever 14.

[0038] The one-way tooth row 117 is connected in the inner cavity of the left clamping column 11 in a sliding manner in the transverse direction, specifically, a stud 116 is transversely screwed on the left clamping column 11, and the one-way tooth row 117 is slidably arranged on the stud 116. The tooth side of the one-way tooth row 117 faces the supporting plate 111, and the supporting plate 111 is fixedly connected with a one-way clamping tooth 112. In the vertical direction, the teeth of the one-way tooth row 117 are inclined surfaces relative to the horizontal plane on the side facing the insulator 2, and are flat surfaces relative to the horizontal plane on the side away from the insulator 2, and the one-way clamping tooth 112 is a flat surface relative to the horizontal plane on the side facing the insulator 2, and is an inclined surface relative to the horizontal plane on the side away from the insulator 2. A second compression spring 119 is sleeved on the stud 116, one end of the second compression spring 119 abuts against the end cap of the stud 116, and the other end abuts against the tooth back side of the one-way tooth row 117. Therefore, when the second compression spring 119 releases the elastic force, the one-way tooth row 117 has a clamping position in the sliding stroke, and at the clamping position, any tooth of the one-way tooth row 117 is clamped and matched with the one-way clamping tooth 112 on the supporting plate 111. In the case that the one-way tooth row 117 is in the clamping position, the flat surface of the one-way clamping tooth 112 abuts against the flat surface of the tooth of the one-way tooth row 117, so that the supporting plate 111 cannot move to the direction of the adapter pad, but the supporting plate 111 can be pressed against the inclined surface of the tooth of the one-way tooth row 117 through the wedge surface of the one-way clamping tooth 112 under the elastic force of the first compression spring 115, so as to overcome the elastic force of the second compression spring 119 and make the one-way tooth row 117 slide transversely out of the clamping position, and then the supporting plate 111 moves to the direction of the swing lever 14.

[0039] The swing lever 14 is fixedly connected with a convex part 16 on the rotating shaft 15, and the one-way tooth row 117 has an abutting part 118 which is in sliding contact with the convex part 16. In the case that the swing lever 14 abuts against the limiting block 19 and the one-way tooth row 117 is in the abutting position, the convex part 16 and the abutting part 118 just fit or have a small spacing, and in the process of the clockwise swing of the swing lever 14 downward to the left, the swing lever 14 swings together with the convex part 16 through the rotating shaft 15, and the convex part 16 starts to press the abutting part 118, so that the one-way tooth row 117 slides transversely to overcome the elastic force of the first compression spring 115, and the one-way tooth row 117 is out of the abutting position.

[0040] In the emergency treatment of the off conductor, first of all, through the insulating operating rod, the cross arm connecting part 3 of the device is installed on the cross arm and the fastening bolt is tightened, then through the insulating operating rod, the off conductor is guided above the swing lever 14 and is lowered, the conductor lowers the swing lever 14 and makes the swing lever 14 swing to the left and down along the clockwise direction, in the process of the swing of the swing lever 14, the convex part 16 on the rotating shaft 15 extrudes the abutting part 118 of the one-way tooth row 117, so that the one-way tooth row 117 slides transversely to disengage from the clamping position against the elastic force of the second compression spring 119, so that the supporting plate 111 is no longer limited to move downward, and the conductor immediately lowers the supporting plate 111, so that the supporting plate 111 slides downward and retreats against the elastic force of the first compression spring 115, until the swing lever 14 is disengaged from the conductor and is elastically rotated to reset to the abutting position, the convex part 16 also loses the extrusion force on the abutting part 118, and the one-way tooth row 117 is slid to reset to the clamping position under the elastic force of the second spring, after the insulating operating rod is removed, the conductor falls on the supporting plate 111, at this time, the space surrounded by the left clamping column 11, the right clamping column 12, the supporting plate 111 and the swing lever 14 has a temporary supporting effect on the conductor.

[0041] In the case of no wind or small wind, the conductor remains stable or the shaking amplitude is small, and the connection of the conductor connecting part 1 to the conductor is relatively stable; once encountering strong wind, the conductor shaking amplitude is large, and the pressure of the conductor on the supporting plate 111 becomes large and small, when the supporting plate 111 is subjected to the reduced pressure of the conductor, the elastic force of the first compression spring 115 is greater than the pressure of the conductor, the elastic force of the second compression spring 119 and the friction resistance of the related structure (the sliding friction resistance of the supporting plate 111 and the sliding friction resistance of the one-way tooth row 117), so as to drive the supporting plate 111 to extrude the one-way tooth row 117 away from the clamping position and slide close to the swing lever 14, thereby gradually limiting the movement space of the conductor, until the conductor is clamped, that is, the conductor is gradually clamped by the conductor clamping part in the case of violent shaking, thereby weakening or even avoiding the repeated friction between the conductor and the conductor connecting part 1, and playing a role in protecting the conductor.

[0042] The above technical solution describes the use scenario of the device in a forward installation mode (the wire clamping part is above the cross arm), and the present application also has a use scenario of an inverted installation mode (the wire clamping part is below the cross arm). In the inverted installation mode, the fallen wire is guided below the swing lever 14 by the insulating operating rod and is lifted upwards, the wire presses the swing lever 14 and makes the swing lever 14 swing to the left clamping column 11, in the process of swinging of the swing lever 14, the convex part 16 on the rotating shaft 15 of the swing lever 14 extrudes the abutting part 118 of the one-way toothed row 117, so that the one-way toothed row 117 slides transversely to disengage from the clamping position against the elastic force of the second compression spring 119, so that the movement of the supporting plate 111 is no longer limited, the wire then presses the supporting plate 111, the supporting plate 111 slides upwards to retreat against the elastic force of the first compression spring 115, until the swing lever 14 is disengaged from the wire and elastically rotates to reset to the abutting position, the convex part 16 also loses the extrusion force on the abutting part 118, and the one-way toothed row 117 slides to reset to the clamping position under the elastic force of the second spring, after the insulating operating rod is removed, the wire falls on the swing lever 14, the elastic force of the first compression spring 115 is greater than the elastic force of the second compression spring 119 and the frictional resistance of the related structure, so the elastic force of the first compression spring 115 drives the supporting plate 111 to extrude the one-way toothed row 117 away from the clamping position and slide close to the swing lever 14, until the supporting plate 111 abuts against the wire, whether the wind is blowing or not, whether the wire is shaking or not, the wire is tightly clamped by the supporting plate 111 and the swing lever 14, so as to weaken or even avoid the repeated friction between the wire and the wire connecting part 1, and play a role in protecting the wire.

[0043] The above describes certain exemplary embodiments of the present application and should not be construed as limiting the scope of protection of the claims of the present application. For those skilled in the art, the described embodiments can be modified in other different ways without departing from the spirit and scope of the present application.

Claims

1. An emergency treatment insulator for a broken wire, comprising an insulator and a wire connecting portion, characterized in that, The wire connecting part comprises: a left clamping column and a right clamping column, which are fixedly connected to one end of the insulator; a swing rod, which is elastically swingably connected to the left clamping column and has an abutting position in the swing stroke for abutting against a limiting block on the right clamping column; a supporting plate, which is axially slidably connected to the left clamping column and / or the right clamping column and is subjected to a vertical elastic force towards the swing rod; a one-way tooth row, which is transversely elastically slidably connected to the inner cavity of the left clamping column and has a clamping position in the sliding stroke for clamping with a one-way clamping tooth on the supporting plate; the swing rod swings under the compression of the wire and compresses the one-way tooth row transversely to slide out of the clamping position through the protrusion on the pivot shaft of the swing rod, the supporting plate slides back after being compressed by the wire, until the swing rod is separated from the wire and elastically rotates back to the abutting position, and the one-way tooth row slides back to the clamping position under the action of the transverse elastic force.

2. The emergency conductor pull-off handling insulator of claim 1, wherein, An adapter pad is arranged between the end of the left clamping column and the right clamping column and the steel cap of the insulator, one side of the adapter pad is adapted to the left clamping column and the right clamping column, and the other side is adapted to the end of the steel cap away from the insulator, and the left clamping column and the right clamping column are fixedly connected to the adapter pad and the steel cap through connecting bolts.

3. The emergency conductor pull-off handling insulator of claim 2, wherein, A first compression spring is arranged between the supporting plate and the steel cap, one end of the first compression spring is connected to the supporting plate, and the other end abuts against the steel cap after passing through the through hole in the adapter pad.

4. The emergency conductor pull-off handling insulator of claim 1, wherein, A fixed block with an axial hole is fixedly connected to the left clamping column, the pivot shaft of the swing rod is rotatably arranged in the axial hole, and the limiting block is closer to the supporting plate than the axial hole.

5. The emergency conductor pull-off handling insulator of claim 4, wherein, A torsion spring is sleeved on the pivot shaft of the swing rod, one end of the torsion spring is connected to the swing rod, and the other end is connected to the left clamping column.

6. The emergency conductor pull-off handling insulator of claim 1, wherein, Each tooth of the one-way tooth row is inclined towards one side of the insulator and is flat away from the insulator, and the one-way clamping tooth is flat towards one side of the insulator and is inclined away from the insulator.

7. The emergency conductor pull-off handling insulator of claim 1, wherein, A stud is transversely screwed on the left clamping column, and the one-way tooth row is slidably arranged on the stud.

8. The emergency conductor pull-off handling insulator of claim 7, wherein, A second compression spring is sleeved on the stud, one end of the second compression spring abuts against the end cap of the stud, and the other end abuts against the one-way tooth row.

9. The emergency conductor pull-off handling insulator of claim 1, wherein, The one-way tooth row has an abutting portion for slidingly abutting and cooperating with the protrusion.

10. The emergency conductor pull-off handling insulator of claim 1, wherein, The supporting plate is arc-shaped, and the inner arc surface thereof faces the swing rod.

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