CN217135025U - Live-line work tool for replacing suspension insulator string - Google Patents

Abstract

The utility model provides a live-line replacing suspension insulator string operating tool, which is used for being matched with a wire grip to be connected between an electric lead and a tower cross arm in an insulating way so as to implement live-line replacing suspension insulator string operation; the method comprises the following steps: the pole tower cross arm fixer is used for fixing the pole tower cross arm; and the insulating connecting plate is used for insulating connection between the tower cross arm fixer and the wire grip. The utility model discloses can realize changing suspension insulator chain with electricity, simplify operating procedure greatly, improve work efficiency, strengthen the incessant operational reliability of power supply, reduce unnecessary economic loss, have advantages such as simple structure, work efficiency height, safe and reliable, use manpower sparingly, have better economic value and practicality.

Description

A tool for live replacement of suspended insulator strings

technical field

The utility model relates to the technical field of repair and maintenance of electric power facilities, in particular to a working tool used for live replacement of suspended insulator strings.

Background technique

As one of the important equipment of transmission lines, suspended insulator strings are an indispensable part of high-voltage transmission lines. As shown in accompanying drawing 1, suspension type insulator string S is used for the connection between live wire W and pole tower cross arm F, and its effect is mainly reflected in two aspects: on the one hand, bear the mechanical force such as gravity, wind force of live wire W; On the other hand, the insulation between the live conductor W and the pole tower cross arm F is ensured. When the suspended insulator string S is faulty or defective, it needs to be replaced in time, otherwise the transmission line will be faulty.

For a long time, due to the lack of suitable live working tools and live working methods, it has to be replaced by power outages. influences. Therefore, live replacement of the suspended insulator string S has become a work item with greater demand and higher difficulty in live work, and it is very urgent to develop targeted special live work tools and methods.

Utility model content

The purpose of the utility model is to provide a working tool for replacing suspension insulator strings with electricity, which can realize the replacement of suspension insulator strings under electricity, greatly simplifies operation steps, improves work efficiency, enhances the reliability of uninterrupted operation of power supply, and reduces unnecessary The necessary economic loss has the advantages of simple structure, high work efficiency, safety and reliability, labor saving, etc., and has good economic value and practicability.

In order to achieve the above object, the utility model realizes through the following technical solutions:

A tool for replacing suspended insulator strings on-line, used for cooperating with a wire tensioner to insulately connect a live wire and a cross arm of a tower to implement live-replacement of suspended insulator strings; including:

The pole and tower cross-arm holder is a component connected with the pole and tower cross-arm, and is used for fixing with the pole and tower cross-arm;

The insulating connecting plate is an insulating plate body, one end is connected with the pole tower cross arm holder, and the other end is connected with the wire tightening device, which is used for the insulating connection between the pole tower cross arm holder and the wire tightening device.

Further, the pole tower cross arm is a horizontally arranged right-angle steel, including: a first slat and a second slat; the first slat and the second slat are fixedly connected and perpendicular to each other, and the first slat is perpendicular to each other. The board body is parallel to the ground, the board body of the second slat is perpendicular to the ground, and the second slat is located below the first slat; the side where the second slat is connected to the first slat is The intersecting side, the opposite side is the deviating side; it is characterized in that, the pole tower cross arm holder includes:

a clamping hook, a component that can be movably connected and fixed with the second slat;

The double-slotted plate is a connecting member whose one end is connected with the clamping hook and the other end is connected with the insulating connecting plate.

Preferably, the clamping hook is a hook-shaped component, one end provided with the hook head is the hook head end, and the other end is the hook tail end, including:

A U-shaped groove is provided at the end of the hook head and used to laterally clamp the second slat in the groove body; the U-shaped groove is also provided with a fixing device to prevent the second slat from the U-shaped groove. slipping or disengaging in the groove;

The first connecting part is arranged at the tail end of the hook and is used for rotational connection with the double slot plate.

Preferably, the two side walls of the U-shaped groove are a first clamping wall and a second clamping wall, wherein the first clamping wall is arranged at the position of the hook tip;

When the U-shaped groove clamps the second slat, the first clamping wall faces the second slat and intersects the side panel surface, and the second clamping wall faces the second slat away from the side panel surface.

Preferably, when the U-shaped groove clamps the second slat, the bottom end of the second slat can abut against the bottom of the U-shaped groove.

Preferably, the fixing device includes:

A threaded through hole vertically arranged on the first clamping wall, and a fixing bolt that can be threadedly inserted into the threaded through hole; when the U-shaped groove clamps the second slat, the fixing bolt is automatically The intersecting side of the first clamping wall passes through the threaded through hole to the side facing away from the second slat against the second slat, so as to realize the fixing of the second slat and the U-shaped groove.

Further, the double slotted plate includes:

a second connecting portion, disposed at one end of the double-slotted plate, for rotational connection with the first connecting portion;

The third connecting part is arranged on the other end of the double-slotted plate, and is used for rotating connection with the insulating connecting plate.

Preferably, the double slotted plate further comprises:

The concave-shaped base is a concave-shaped plate body provided with a notch at one end, the side provided with the notch is the notch side, and the other side is the hook body connection side;

The V-shaped connecting frame is fixedly arranged on the top of the concave-shaped base, and includes two identical V-shaped plates arranged in parallel, the bottom end of each V-shaped plate is perpendicular to the concave-shaped base, and the two The V-shaped plates are respectively arranged on both sides outside the gap of the concave-shaped base;

The second connecting portion is arranged at the end portion on the connecting side of the hook body of the V-shaped connecting frame; the third connecting portion is arranged at the end portion on the notch side of the V-shaped connecting frame.

Preferably, the insulating connecting plate is a strip-shaped plate body, and the end connected with the pole tower cross arm holder is a V-shaped connecting frame connection end, and the insulating connecting plate includes:

The fourth connecting part is arranged at the connecting end of the V-shaped connecting frame and is used for rotational connection with the double-slotted plate; the connecting end of the V-shaped connecting frame is inserted between the two V-shaped plates, and the V-shaped connecting frame is connected The bottom end of the end is inserted into the notch of the concave base;

The fifth connecting part is arranged at the opposite end of the connecting end of the V-shaped connecting frame, and is used for connecting with the wire tensioner.

To sum up, compared with the prior art, the live replacement suspension insulator string operating tool provided by the utility model has the following beneficial effects:

1. It has the bearing and insulation functions of suspension insulator strings, which can realize live replacement of suspension insulator strings, greatly simplifying operation steps, improving work efficiency, enhancing the reliability of uninterrupted operation of power supply, and reducing unnecessary economic losses. , has the advantages of simple structure, high work efficiency, safety and reliability, manpower saving, etc., and has good practicability and economic value;

2. The utility model can be used not only as a special tool for live replacement of suspended insulator strings of overhead lines, but also as a temporary insulator for temporarily fixing electric wires, which can be used for emergency plans.

Description of drawings

Fig. 1 is the connection schematic diagram of the suspension insulator string of the prior art;

Fig. 2 is the structural representation of the pole tower cross arm of the prior art;

3 is a schematic structural diagram of a live replacement suspension insulator string working tool of the present invention;

4 is a schematic structural diagram of a clamping hook of the present invention;

Fig. 5 is the structural representation of the double slot plate of the present invention;

6 is a schematic structural diagram of an insulating connecting plate of the present invention;

FIG. 7 is a schematic diagram of the connection of the working tool for live replacement of suspended insulator strings of the present invention.

Detailed ways

A working tool for live replacement of suspended insulator strings proposed by the present utility model will be further described in detail below with reference to the accompanying drawings and specific embodiments. The advantages and features of the present invention will become more apparent from the following description. It should be noted that the accompanying drawings are in a very simplified form and use inaccurate scales, and are only used to facilitate and clearly assist the purpose of illustrating the embodiments of the present invention, and are not intended to limit the conditions for the implementation of the present invention. Therefore, Without technical substantive significance, any modification of structure, change of proportional relationship or adjustment of size should still fall within the scope disclosed in the present utility model without affecting the effect that the utility model can produce and the purpose that can be achieved. The technical content can cover the scope.

It should be noted that, in the present invention, relational terms such as first and second are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply these entities or operations. There is no such actual relationship or sequence between operations. Moreover, the terms "comprising", "comprising" or any other variation thereof are intended to encompass a non-exclusive inclusion such that a process, method, article or device comprising a list of elements includes not only the explicitly listed elements, but also no Other elements expressly listed, or which are also inherent to such a process, method, article or apparatus.

With reference to Figures 1 to 7, the present embodiment provides a live replacement suspension insulator string working tool (Figure 3), which is used to cooperate with the wire tensioner T as a temporary insulator instead of the suspension insulator string S to be fixed in a Between the electric wire W and the pole tower cross arm F, the live replacement of the suspension insulator string S can be carried out; the live replacement of the suspension insulator string operation tool includes: the pole tower cross arm holder and the insulating connecting plate 3; wherein,

The pole and tower cross-arm holder is a component that is movably connected to the pole and tower cross-arm F, and is used for fixing with the pole and tower cross-arm F. It adopts a design structure that can be flexibly disassembled and reliably connected, and is made of metal material, preferably stainless steel or aluminum alloy;

In this embodiment, the pole-tower cross-arm F is a right-angle steel (Fig. 1, 2) commonly used in my country's power system at present, and is horizontally arranged on the top of the electric pole and tower, and the pole-tower cross-arm F includes: a first slat a and a second plate Strip b, the first strip a and the second strip b are fixedly connected and perpendicular to each other, the plate body of the first strip a is parallel to the ground, the plate body of the second strip b is perpendicular to the ground, and the second strip b is located at Below the first slat a; the side where the second slat b is connected to the first slat a is the intersecting side, and the opposite side is the deviating side.

The pole tower cross arm holder applied to this type of pole tower cross arm F includes: a clamping hook 1 and a double grooved plate 2 connected with the clamping hook 1; wherein,

The clamping hook 1 (Fig. 4) is a hook-shaped component that can be movably connected and fixed with the second slat b, including:

The connecting frame 11 includes two hook-shaped plates arranged in parallel, one end provided with the hook head is the hook head end, the other end is the hook tail end, and the hook tail end is fixedly provided with a first connecting part 111; the first connecting part 111 It is a through hole arranged symmetrically and vertically on the two hook-shaped plates;

The U-shaped groove 12 is a U-shaped groove fixedly arranged on the inner side of the hook head of the hook head end of the connecting frame 11. The two side walls of the U-shaped groove 12 are a first clamping wall 121 and a second clamping wall 122, of which the first clamping wall 121 and the second clamping wall 122. The clamping wall 121 is set at the hook tip position; the clamping hook 1 can laterally clamp the second slat b in the U-shaped groove 12 through the first clamping wall 121 and the second clamping wall 122. The clamping wall 121 faces and contacts the second slat b intersecting the side panel surface, the second clamping wall 122 faces and contacts the second slat b away from the side panel surface, and the bottom end of the second slat b may be connected to the U-shaped groove. The bottom of the groove of 12 abuts to increase the firmness of fixing the second slat b;

The U-shaped groove 12 is also provided with a fixing device for preventing the second slat b from slipping or disengaging from the U-shaped groove 12; the fixing device includes: a threaded through hole vertically arranged on the first clamping wall 121, The fixing bolts 123 inserted into the threaded through holes are threadedly fitted; when the U-shaped groove 12 clamps the second slat b, the fixing bolts 123 pass through the threaded through holes from the intersecting side of the first clamping wall 121 to the side away from the first clamping wall 121 against the second slat b. The slat b, realizes the fixing of the second slat b and the U-shaped groove 12 .

The double slotted plate 2 (Fig. 5) is a connecting component rotatably connected with the connecting frame 11, including:

The concave-shaped base 21 is a concave-shaped plate body provided with a rectangular notch at one end, the side provided with the notch is the notch side, and the other side is the hook body connection side;

The V-shaped connecting frame 22 is fixedly arranged on the top of the concave-shaped base 21 and includes two identical V-shaped plates arranged in parallel. The bottom end of each V-shaped plate is perpendicular to the concave-shaped base 21, and the two V-shaped plates are The body is respectively arranged on both sides outside the rectangular gap of the concave-shaped base 21; the end of the hook body of the V-shaped connecting frame 22 is provided with a second connecting part 221, and the second connecting part 221 is symmetrical on the two V-shaped plates. , a vertically arranged through hole, the second connecting part 221 is connected in rotation with the first connecting part 111, such as through the first connecting part 111 and the second connecting part 221 through pins, rivets, bolts, etc. to achieve a rotating connection; V-shaped connecting frame The end of 22 on the side of the notch is provided with a third connecting portion 222, and the third connecting portion 222 is a through hole symmetrically and vertically arranged on the two V-shaped plates.

The insulating connecting plate 3 (accompanying drawing 6) is a bar-shaped insulating plate body parallel to the V-shaped connecting frame 22, one end of the plate body is rotatably connected with the pole tower cross arm holder, and the other end is connected with the wire tensioner T, which is used for the pole tower cross arm Insulation connection between the holder and the tensioner T;

One end of the insulating connecting plate 3 connected to the pole tower cross arm holder is a V-shaped connecting frame connecting end 31. The V-shaped connecting frame connecting end 31 is provided with a fourth connecting portion 311, and the fourth connecting portion 311 is a vertically arranged through hole. The four connecting parts 311 are connected in rotation with the third connecting part 222, for example, through the third connecting part 222 and the fourth connecting part 311 through pins, rivets, bolts, etc. to realize the rotating connection; between the V-shaped plates, and the bottom end of the connecting end 31 of the V-shaped connecting frame is inserted into the rectangular notch of the concave-shaped base 21, so that the designed position of the fourth connecting part 31 can be connected to the connecting end 31 of the V-shaped connecting frame. There is a sufficient distance between the ends, so that the insulating connecting plate 3 can have strong tensile strength; the top of the V-shaped connecting frame connecting end 31 is provided with a triangular defect, which is used to make the insulating connecting plate 3 relative to the double slot plate 2. Has a large rotation angle;

One end of the insulating connecting plate 3 connected with the wire tensioner T is the wire tensioner connection end 32, the wire tensioner connection end 32 is provided with a fifth connection part 321, and the fifth connection part 321 is rotatably connected with the wire tensioner connection end 32. U-shaped ring; the insulating connecting plate 3 is connected to the wire tensioner T through the fifth connecting portion 321 .

The present embodiment also provides an operation method for replacing the suspension insulator string with live electricity, using the above-mentioned working tool for replacing the suspension insulator string with electricity, as shown in the accompanying drawings 1-7, including the steps:

1. Fix the pole tower cross arm holder and the pole tower cross arm F;

Align the notch of the U-shaped groove 12 of the clamping hook 1 with the bottom end of the second slat b vertically upward, and the first clamping wall 121 faces the intersecting side surface of the second slat b, and the second clamping wall 122 faces The second slat b faces away from the side panel surface, moves vertically upward from the bottom end of the second slat b to clamp the second slat b laterally in the U-shaped groove 12, and makes the bottom end of the second slat b and the U-shaped groove 12. The bottom of the groove 12 is in contact with the groove bottom; then the fixing bolt 123 is pushed through the threaded through hole from the intersecting side of the first clamping wall 121 to the side away from the second slat b, so as to realize the second slat b and the U-shaped groove 12 fixed;

Rotate the double-slotted plate 2 at the rotational connection between the first connecting portion 111 and the second connecting portion 221, and overlap the double-slotted plate 2 on the top of the first slat a from the intersecting side to the deviating side to complete the tower horizontal Fixing of the arm holder and the pole tower cross arm F;

2. Connect the insulating connecting plate 3 to the live wire W through the wire tensioner T;

Connect the fifth connection part 321 with the wire tensioner T, then fix the wire tensioner T with the electric wire W, and operate the wire tensioner T to tighten the connection between the insulating connecting plate 3 and the electric wire W, and it is charged at this time. The tool for replacing the suspension insulator string has the function of bearing and insulating the suspension insulator string S to be replaced, and the suspension insulator string S to be replaced can be safely removed;

3. Replace the suspension insulator string S;

4. Remove the live tool to replace the suspension insulator string;

Loosen the thread tensioner T, sequentially release the connection between the thread tensioner T and the electric wire W and the fifth connection part 321, loosen the fixing bolt 123, and remove the U-shaped groove 12 of the clamping hook 1 from the second slat b. Exit, remove the live replacement suspension insulator string working tool, and complete the dismantling work.

To sum up, the working tool for replacing the suspension insulator string with electricity provided by the utility model has the bearing and insulation functions of the suspension insulator string, and can realize the replacement of the suspension insulator string under electricity, greatly simplifying the operation steps and improving the work efficiency. , enhances the reliability of uninterrupted operation of power supply, reduces unnecessary economic losses, has the advantages of simple structure, high work efficiency, safety and reliability, labor saving, etc., and has good practicability and economic value; the utility model can be used as In addition to the special tool for live replacement of suspended insulator strings of overhead lines, it can also be used as a temporary insulator for temporarily fixing electric wires, which can be used for emergency plans.

Although the content of the present invention has been described in detail through the above preferred embodiments, it should be appreciated that the above description should not be construed as limiting the present invention. Various modifications and substitutions to the present invention will be apparent to those skilled in the art after reading the foregoing. Therefore, the protection scope of the present invention should be defined by the appended claims.

Claims (9)

1. A live-line replacing suspension insulator string working tool is used for being matched with a wire grip and being in insulation connection between an electric lead and a tower cross arm so as to implement live-line replacing suspension insulator string working; it is characterized by comprising:

the pole tower cross arm fixer is a component connected with the pole tower cross arm and used for fixing the pole tower cross arm;

the insulating connecting plate is an insulating plate body, one end of the insulating connecting plate is connected with the pole tower cross arm fixing device, and the other end of the insulating connecting plate is connected with the wire tightener and used for insulating connection between the pole tower cross arm fixing device and the wire tightener.

2. The live-line replacement of the suspension insulator string work tool of claim 1, wherein the tower cross arm is a horizontally disposed right angle steel comprising: a first panel and a second panel; the first lath and the second lath are fixedly connected and mutually vertical, the plate body of the first lath is parallel to the ground, the plate body of the second lath is vertical to the ground, and the second lath is positioned below the first lath; one side of the second batten, which is connected with the first batten, is an intersecting side, and the opposite side is a deviating side; its characterized in that, shaft tower cross arm fixer includes:

the clamping hook is a part which can be movably connected and fixed with the second batten;

and the duplex slotted plate is a connecting part, one end of the duplex slotted plate is connected with the clamping hook, and the other end of the duplex slotted plate is connected with the insulating connecting plate.

3. The tool for electrically replacing a suspension insulator string according to claim 2, wherein the clamping hook is a hook-shaped part, one end provided with a hook head is a hook head end, and the other end is a hook tail end, and the tool comprises:

the U-shaped groove is arranged at the hook end and used for transversely clamping the second batten in the groove body; the U-shaped groove is also provided with a fixing device for preventing the second batten from sliding or separating from the U-shaped groove;

and the first connecting part is arranged at the tail end of the hook and is used for being rotationally connected with the duplex slotted plate.

4. The live replacement suspension insulator string work tool of claim 3, wherein the two side walls of the U-shaped groove are a first clamping wall and a second clamping wall, wherein the first clamping wall is disposed at the hook tip position;

when the U-shaped groove clamps the second lath, the first clamping wall faces the intersecting side plate surface of the second lath, and the second clamping wall faces the second lath and deviates from the side plate surface.

5. The live change suspension insulator string work tool of claim 4, wherein the bottom end of the second strap is adapted to abut the bottom of the U-shaped channel when the U-shaped channel is engaged by the second strap.

6. The live replacement suspension string work tool of claim 4, wherein the securing means comprises:

the first clamping wall is provided with a threaded through hole which is vertically arranged, and a fixing bolt which can be inserted into the threaded through hole in a threaded fit manner; when the U-shaped groove clamps the second lath, the fixing bolt penetrates through the threaded through hole from the intersecting side of the first clamping wall to the deviating side to prop against the second lath, so that the second lath and the U-shaped groove are fixed.

7. The live replacement suspension insulator string work tool of claim 3, wherein the double slotted plate comprises:

the second connecting part is arranged at one end of the double-linking-groove plate and is used for being rotatably connected with the first connecting part;

and the third connecting part is arranged at the other end of the duplex groove plate and is used for being rotationally connected with the insulating joint plate.

8. The live replacement suspension insulator string work tool of claim 7, wherein the double slotted plate further comprises:

the concave base is a concave plate body with a notch at one end, one side provided with the notch is a notch side, and the other side is a hook body connecting side;

the V-shaped connecting frame is fixedly arranged at the top of the concave base and comprises two identical V-shaped plate bodies which are arranged in parallel, the bottom end of each V-shaped plate body is perpendicular to the concave base, and the two V-shaped plate bodies are respectively arranged at two sides of the outer part of the notch of the concave base;

the second connecting part is arranged at the end part of the connecting side of the hook body of the V-shaped connecting frame; the third connecting part is arranged at the end part of the V-shaped connecting frame on the gap side.

9. The tool for live replacement of a suspension insulator string as claimed in claim 8, wherein the insulation connecting plate is a bar-shaped plate body, one end connected with the tower cross arm fixer is a V-shaped connecting end, and the insulation connecting plate comprises:

the fourth connecting part is arranged at the connecting end of the V-shaped connecting frame and is used for being rotationally connected with the double-linking groove plate; the V-shaped connecting end of the connecting frame is inserted between the two V-shaped plate bodies, and the bottom end of the V-shaped connecting end of the connecting frame is inserted into the notch of the concave base;

and the fifth connecting part is arranged at the opposite end of the V-shaped connecting frame connecting end and is used for being connected with the wire tightener.

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