CN206962343U - A combination tool for electric equipment maintenance - Google Patents

Abstract

The utility model discloses a combination tool for electric equipment maintenance, which comprises a д-shaped connecting piece used for connecting the terminal plate of the insulator string load-bearing hanging point and a gong-shaped connecting piece used for connecting the terminal plate of the hanging wire of the wire. An adjustable tension mechanism is arranged between the piece and the 匚-shaped connecting piece, and the adjustable tension mechanism is composed of a pull rod, an insulating pull plate and an adjustment pull rod that are movably connected in turn. The combination tool is not only simple in structure, easy to operate, safe and reliable, small in size and light in weight, but also can always maintain the original horizontal state of the insulator string during operation, ensuring safety, stability and reliability during operation, and can Simplify the operation process and improve the construction efficiency; this combination tool is especially suitable for the maintenance and replacement of tension-resistant double-string composite insulator strings and linear composite insulator strings, without using too many tools, and is also suitable for maintenance and replacement of other insulator strings .

Description

A combination tool for electric equipment maintenance

technical field

The utility model belongs to the technical field of electric equipment maintenance, in particular to a combination tool for electric equipment maintenance.

Background technique

In order to improve the anti-pollution flashover ability of the external insulation of transmission lines, the external insulation configuration of most of the high-voltage transmission lines under the jurisdiction of the country has completely adopted composite silicone rubber insulators to realize the composite of the entire network. Since insulators are used in the field for a long time, they often need to be repaired or replaced. When replacing and maintaining tension-resistant double-string insulators, most of the measures taken are to hang two 3T chain hoists on both sides of the main traction tool, and then adjust the chain hoists while pulling the wires to continuously adjust the unbalanced tension to maintain the insulator strings. level status. Although this method is effective, the maintenance tool has complex structure, cumbersome operation, and single function, which cannot meet the maintenance requirements of various existing transmission line towers, and can not meet the requirements of operation and maintenance, replacement, technical transformation, defect treatment, etc. needs in different situations. Moreover, the operation time for repairing the insulator string is too long, the safety and stability are poor, and at the same time, the investment of manpower is large and the efficiency is low. When abnormal problems occur and the working position is changed, due to the use of more appliances, the construction period is extended and the operation and utilization of the transmission line is reduced. rate, resulting in a serious waste of resources. In addition, during the construction process, due to the inevitable change of the direction of the traction force, the insulator string is likely to be seriously tilted, especially for the iron tower with a large actual rotation angle of the tension tower. The ones that slope toward the outer corners are more severe. The common reason for insulator string inclination is that the suspension point and traction point are not on the center line of the wire tension: the hanging point on the cross-arm side, the load-bearing tool, and the hanging point on the wire side, no matter what the reason is, it will cause tension The tension of the iron tower is unbalanced, and the whole string of insulators is tilted. After this problem occurs, it will not only fail to operate normally, but will also cause the whole string of insulators to turn over and the wires to twist when it is serious, resulting in equipment damage and construction workers falling from high altitude.

The problems mentioned above have not been solved well so far.

According to the regulations, the composite insulators are not allowed to be climbed during installation, maintenance and testing (to avoid man-made damage to the insulators).

Utility model content

The technical problem to be solved by the utility model is to provide a combination tool for replacing strain-resistant and linear composite insulator strings for transmission lines. , Improve construction efficiency, simplify operation process, and ensure safety, stability and reliability during operation.

The technical solution adopted to achieve the above purpose is: a combination tool for electric equipment maintenance, including a д-shaped connector for connecting the terminal plate of the load-bearing hanging point of the insulator string and a gong-shaped connection for connecting the terminal plate of the hanging wire of the wire An adjustable tension mechanism is set between the д-shaped connector and the 匚-shaped connector, and the adjustable tension mechanism is composed of a pull rod, an insulating pull plate and an adjusting pull rod that are movably connected in sequence.

The adjusting pull rod is composed of a left-handed screw rod, a right-handed screw rod and forward and reverse helical connecting sleeves.

There are two adjustable tension mechanisms.

The д-shaped connector and the 匚-shaped connector are made of aluminum alloy.

The insulating pull plate is made of insulating resin.

The combined tool for maintenance of electrical equipment is equipped with a ladder for connecting the cross-arm of the tower pole. The ladder is composed of a hook assembly, a vertical pole and an anchor plate connected in sequence, wherein the vertical pole is provided with a number of pedals.

A protection rope is arranged on the pole.

The pole is connected with an insulating short joint.

The articulated assembly includes a articulated base body, a pendulum base and a taper sleeve, the articulated base body is provided with a articulated slot, the pendulum base is movably connected with the articulated base body through a pendulum shaft, the taper sleeve is connected with the pendulous base, and is connected with the The uprights are fixedly connected.

A ground wire is arranged on the pole.

The advantages of the utility model hydraulic mud gate valve control device are:

1) The combined tool for electric equipment maintenance of the present utility model is not only simple in structure, easy to operate, safe and reliable, small in size and light in weight, but also can always maintain the original horizontal state of the insulator string during the operation process to ensure safety during operation. Stability, reliability, and can simplify the operation process and improve construction efficiency; this combination tool is especially suitable for the maintenance and replacement of tensile double-string composite insulator strings and linear composite insulator strings, without using too many tools, and is also suitable for Repair and replacement of other insulator strings.

2) In this utility model, there are two adjustable tension mechanisms, which are connected in parallel between the д-shaped connector and the 匚-shaped connector. In this way, when adjusting the length of the combined tool, one of the adjustable tension mechanisms can be held with one hand, and the rotating positive and negative helical sleeves of the other adjustable tension mechanism can be rotated with the other hand, so as to reverse the twisting of the insulator string; In addition to adjusting the torque, the operation is easier.

3) The climbing ladder matched with the combination tool of the utility model is simple in structure, light in weight, safe and light in operation, not only can be used for maintenance and replacement of strain-resistant double-string composite insulator strings and linear composite insulator strings, but also can be used for climbing other tower operations .

Description of drawings

Below in conjunction with accompanying drawing, the utility model is further described:

Fig. 1 is the structural representation of the utility model embodiment one;

Fig. 2 is the structural representation of embodiment two;

Fig. 3 is the structural representation of embodiment three;

Fig. 4 is the schematic structural view of the articulated assembly in the second embodiment;

Fig. 5 is a schematic structural diagram of the fourth embodiment.

Detailed ways

Embodiment one

As shown in Figure 1, the combined tool for maintenance of electric equipment of the present invention includes a д-shaped connector 1 and a 匚-shaped connector 7 at both ends. The plate 8 is connected; the 匚-shaped connector 7 can be connected with the ring-shaped connecting plate 9 ring sleeves at the end of the insulator string wire hanging line. An adjustable tension mechanism is set between the д-shaped connector 1 and the 匚-shaped connector 7. The adjustable tension mechanism is composed of a pull rod 2, an insulating pull plate 3 and an adjusting pull rod that are movably connected by bolts in turn. The pull rod can be adjusted according to the insulator string. The length needs to be replaced with different length specifications. The insulating pull plate can be made of insulating resin, which is used for the insulation between the two ends of the adjustable tension mechanism to ensure the safety of the maintenance operation process. The adjustment pull rod can adopt a telescopic adjustment structure composed of a left-handed screw 4 , a right-handed screw 6 and forward and reverse helical connecting sleeves 5 . The д-shaped connector 1 and the 匚-shaped connector 7 can be made of aluminum alloy material, and the tool is more portable.

When the combination tool for electric equipment maintenance of the utility model is in use, pull rods 2 of different length specifications can be replaced according to the length of the insulator string to be repaired and replaced, and the combination tool can be adjusted to an appropriate length by adjusting the pull rod in advance, and then climbing To the appropriate position, insert the triangular connecting plate 8 at the bearing point of the insulator string into the groove of the д-shaped connector 1, and fasten the two with bolts; then remove the ring-shaped connector 7 and put it on the insulator string On the ring joint plate 9 of wire hanging end, be fastened and connected with the tail end of adjusting pull bar with bolt. Then adjust the length of the combination tool by rotating the positive and negative spiral connection sleeve 5, so that the insulator string is in a loose and free state, and the insulator string can be repaired or replaced. The combination tool is not only simple in structure, easy to operate, safe and reliable, small in size and light in weight, but also can always maintain the original horizontal state of the insulator string during operation, ensuring safety, stability and reliability during operation, and can Simplify the operation process and improve the construction efficiency; this combined tool is especially suitable for the maintenance and replacement of tension-resistant double-string composite insulator strings and linear composite insulator strings, without using too many tools, and is also suitable for the maintenance and replacement of other insulator strings Operation.

Embodiment two

Referring to FIG. 2 , as a further improvement, two adjustable tension mechanisms are provided, which are connected in parallel between the д-shaped connecting piece 1 and the gong-shaped connecting piece 7 . In this way, when adjusting the length of the combined tool, one of the adjustable tension mechanisms can be held with one hand, and the rotating positive and negative spiral connection sleeve 5 of the other adjustable tension mechanism can be rotated with the other hand, so as to reverse the twisting of the insulator string; at the same time Adjustment torque is reduced for easier operation.

Embodiment three

Referring to Fig. 3 and Fig. 4, the electric equipment maintenance combination tool of the present utility model can be equipped with a climbing ladder for connecting the cross-arm of the tower rod, and the climbing ladder can be composed of a articulated assembly, a vertical rod 15 and an anchor plate 20 connected in sequence, wherein the vertical rod 15 is provided with some pedals 17. The vertical rod 15 can be made of aluminum alloy or other light and high-strength rods or pipes to reduce the weight of the ladder and facilitate operation and portability. The articulated assembly includes a articulated base 10, a swing base 12 and a taper sleeve 13. The articulated base 10 can be processed from an aluminum alloy casting. The front part is provided with a articulated groove 10-1, and the rear part is integrally provided with There is a bracket 10-2 with a groove 10-3, and a fastening screw 11 can also be arranged at the articulated groove 10-1. The pendulum seat 12 is placed in the groove 10-3 of the bracket 10-2 through the pendulum shaft 12-1, the taper sleeve 13 is connected with the tapered hole at the center of the pendulum seat 12, and the taper sleeve 13 is fitted with the vertical rod 15 Fixed connection. The upright rod can swing by the pendulum shaft 12-1, and also can rotate freely in the pendulum seat 12. For the sake of safety, the insulation nipples 14, 18 can be connected to the two ends of the pole 15; the protection rope 16 can also be set on the pole 15, and the upper and lower ends of the protection rope 16 can be fixedly connected with the pole 15, and a chain rope can be used, or Nylon ropes with nodules can be used to facilitate the hooking of the safety ropes of climbers. The bottom of upright bar 15 can be provided with righting handle 19, can prevent the rotation of upright bar 15 when climbing by uprighting handle 19 during operation, safer.

When the ladder is in use, the hooking slot 10-1 of the hooking base 10 can be clamped on the cross arm near the maintenance operation point of the tower rod of the transmission line, and the hooking base can be firmly fixed by the fastening screw 11. On the cross arm, the lower end of the vertical pole 15 fixes the anchor plate 20 with a rope, and the operator can climb to the top along the vertical pole 15. During the climbing process, the hook of the safety rope can be connected to the safety rope 16 successively. In the chain link or on the nodules to prevent falling, after reaching the top, the maintenance work of the insulator string can be carried out. The ladder has a simple structure and is light, so it is safe and easy to operate. It can not only be used for maintenance and replacement of tension-resistant double-string composite insulator strings and linear composite insulator strings, but also can be used for climbing other tower operations.

Embodiment Four

Referring to FIG. 5 , in order to ensure safe operation, a ground wire 21 may be provided on the pole 15 . The specific setting method can make the vertical pole 15 and the insulating short joints 14, 18 into a hollow tubular structure, and the grounding wire 21 is worn in the central through hole of the vertical pole 15 and the insulating short joints 14, 18, which is beneficial to the protection of the grounding wire 21. Free from damage and reduce the weight of the ladder. The grounding wire 21 should adopt the inner core of copper stranded wire, and an insulating protective layer is arranged outside the inner core. The upper end of the ground wire 21 can be connected with a hook-type elastic clamp 22, and a hook operation ring can be integrally arranged on one side of the clamp 22. When the climbing ladder of this scheme is used, the connecting clamp 22 can be hooked on the power transmission wire by using an insulating operating rod, and the lower end of the grounding wire 21 can be safely grounded through a conventional grounding member. Thereby, the adverse effect of the induced electric field on the operator can be avoided, and the safety of the climbing operation process can be reliably ensured.

Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the utility model without limitation, other modifications or equivalent replacements made by those of ordinary skill in the art to the technical solution of the utility model, as long as they do not depart from the technical solution of the utility model The spirit and scope should be included in the claims of the present utility model.

Claims (11)

1. A combination tool for electric equipment maintenance, characterized in that: it includes a д-shaped connector for connecting the terminal plate of the load-bearing hanging point of the insulator string and a gong-shaped connector for connecting the wire-hanging terminal plate, the д-shaped connector An adjustable tension mechanism is arranged between the connecting piece and the 匚-shaped connecting piece, and the adjustable tension mechanism is composed of a pull rod, an insulating pull plate and an adjusting pull rod which are movably connected in sequence. 2. The combination tool for maintenance of electrical equipment according to claim 1, wherein the adjusting rod is composed of a left-handed screw rod, a right-handed screw rod, and a positive and negative screw connecting sleeve. 3. The combination tool for electric equipment maintenance according to claim 1, characterized in that there are two adjustable tension mechanisms. 4. The combination tool for maintenance of electric equipment according to claim 1, characterized in that: the д-shaped connector and the gong-shaped connector are made of aluminum alloy. 5. The combination tool for maintenance of electric equipment according to claim 1, characterized in that: said insulating pull plate is made of insulating resin. 6. The combined tool for maintenance of electric equipment according to claim 1, characterized in that: the combined tool for maintenance of electric equipment is equipped with a ladder for connecting the cross arm of the tower pole, and the ladder is composed of a connecting assembly, a vertical pole and An anchor plate is formed, wherein the pole is provided with several pedals. 7. The combination tool for maintenance of electrical equipment according to claim 6, wherein a protection rope is arranged on the pole. 8. The combination tool for maintenance of electrical equipment according to claim 6 or 7, characterized in that: the pole is connected with an insulating short joint. 9. The combination tool for maintenance of electric equipment according to claim 6, wherein the hitch assembly includes a hitch body, a swing seat and a taper sleeve, the hitch body is provided with a hook slot, and the swing seat passes through the swing seat. The shaft is movably connected with the articulated seat body, the taper sleeve is matched with the swing seat, and is fixedly connected with the vertical rod. 10. The combination tool for electric equipment maintenance according to claim 7 or 9, characterized in that: a ground wire is arranged on the pole. 11. The combination tool for maintenance of electrical equipment according to claim 8, wherein a ground wire is arranged on the pole.