CN202111437U - Separate bolt butt joint double-wing fixture - Google Patents

Abstract

The utility model discloses a separate bolt butt joint double-wing fixture, which comprises a first connecting plate and a second connecting plate opposite to the first connecting plate, and one end of the first connecting plate and the second connecting plate is connected with a cross arm There are connecting bolts in the connecting holes; the first wing plate is set on the outside of the first connecting plate, the second wing plate is set on the outside of the second connecting plate, and the first wing plate and the second wing plate are provided with fitting connection holes The opposite end of the first connecting plate and the second connecting plate to the connecting bolt is connected through a detachable support; the utility model separate bolt butt joint double-wing clamp is arranged on the cross arm through the connecting bolt, and the connecting bolt and the connecting insulator The fittings of the strings are connected, the fittings connecting holes on the wing plate are connected with the fittings connecting the insulating pull rods, and the insulator strings can be easily replaced by this fixture, thereby greatly improving the working efficiency of replacing the insulators.

Description

Separate bolt butt joint double-wing fixture

technical field

The utility model relates to an insulator jig, in particular to an insulator jig for a DC UHV overhead transmission line.

Background technique

Insulators play two basic roles in overhead transmission lines, that is, to support wires and insulate them. Insulators ensure the normal operation of lines. However, due to the long-term impact of high voltage, mechanical load and natural environment changes on the insulator during online operation, the insulator is easily damaged and broken. In order to ensure the safe and stable operation of the line, the damaged insulator must be replaced.

The insulator string of the linear tower with small corner of ±800kV UHV DC transmission line is L-shaped, and the composite insulators cannot be disassembled after installing various fixtures on the fittings due to the lack of fittings at the cross-arm side hanging points on the outer corner side. Therefore, in the prior art, the insulator strings are directly hung on the cross arm without using insulator clamps. This connection mode makes it difficult to replace the insulator strings, and the workload of line maintenance is heavy.

Therefore, it is necessary to improve the insulator string connection method in the prior art to facilitate the replacement of insulator strings and improve the efficiency of line maintenance.

Utility model content

In view of this, the purpose of this utility model is to provide a separate bolt butt joint double-wing clamp, through which the insulator string is connected to the cross arm, and the work efficiency of replacing the insulator string can be greatly improved by this clamp.

The utility model separate bolt butt joint double-wing fixture comprises a first connecting plate and a second connecting plate opposite to the first connecting plate, and one end of the first connecting plate and the second connecting plate connected to the cross arm is provided with a connecting hole, and the connecting hole There are connecting bolts arranged in it;

A first wing plate is provided on the outside of the first connecting plate, a second wing plate is provided on the outside of the second connecting plate, and fitting holes are provided on both the first wing plate and the second wing plate;

The ends opposite to the connecting bolts of the first connecting plate and the second connecting plate are connected through a detachable supporting member. In this solution, the outside of the first connecting plate refers to the side facing away from the second connecting plate, and in this solution, the outside of the second connecting plate refers to the side facing away from the first connecting plate.

Further, the connecting bolt is a stud bolt, the connecting hole is provided with a bolt protective sleeve that rotates with it, the bolt protective sleeve is threadedly matched with the connecting bolt, and the part of the bolt protective sleeve outside the connecting hole is in the shape of a nut;

Further, the support member is two pieces, and is arranged on both sides of the wing plate;

Further, the support member is a bolt;

Further, both the first connecting plate and the second connecting plate are bent outward in an L shape at the middle position.

Beneficial effects of the utility model: The utility model separate bolt butt joint double-wing clamp is arranged on the cross arm through the connecting bolt, the connecting bolt is connected with the fittings connecting the insulator string, and the fitting hole on the wing plate is connected with the insulating puller. The metal fittings of the rods are connected, and the insulator strings can be easily replaced through the fixture, thereby greatly improving the working efficiency of replacing the insulators.

Description of drawings

Below in conjunction with accompanying drawing and embodiment the utility model is described further.

Fig. 1 is the front view of the split bolt butt joint double-wing fixture of the utility model;

FIG. 2 is a top view of FIG. 1 .

Detailed ways

Fig. 1 is a front view of the split-bolt butt joint double-wing fixture of the present invention; Fig. 2 is a top view of Fig. 1 .

As shown in the figure, the separate bolt butt joint double-wing fixture in this embodiment includes a first connecting plate 1 and a second connecting plate 2 opposite to the first connecting plate 1, and the first connecting plate 1 and the second connecting plate 2 are connected to the transverse A connection hole is provided at one end of the connection, and a connection bolt 3 is arranged in the connection hole;

The outside of the first connecting plate 1 is provided with a first wing plate 4, the outside of the second connecting plate 2 is provided with a second wing plate 5, and the first wing plate 4 and the second wing plate 5 are all provided with fitting connection holes (fitting fitting holes). The serial numbers of are respectively 6 and 7 in Figure 2);

The ends opposite to the connecting bolts 3 of the first connecting plate 1 and the second connecting plate 2 are connected by a detachable supporting member 8 .

The utility model separate bolt butt joint double-wing jig, which is arranged on the cross arm through the connecting bolt, the connecting bolt is connected with the fittings connecting the insulator string, the fitting hole on the wing plate is connected with the fitting connecting the insulating rod, through this The jig can easily replace the insulator strings, which changes the current situation in the prior art that the insulator strings are directly connected to the cross arm and the insulator strings are difficult to replace, and can greatly improve the working efficiency of replacing the insulators.

As an improvement to this embodiment, the connecting bolt 3 is a double-headed bolt, and a bolt protection sleeve 9 is provided in the connection hole to rotate with it. The bolt protection sleeve 9 is threadedly matched with the connection bolt 3, and the bolt protection sleeve 9 is located outside the connection hole. The part is nut-shaped. The bolt protection sleeve can prevent the bolt thread from directly contacting the connecting plate, so that the bolt will not damage the bolt thread when the bolt is stressed. At the same time, the end of the thread protection sleeve is nut-shaped, which is convenient for matching with a wrench and easy to disassemble. Of course, in practical implementation, the present invention can also be realized by directly fixing the bolts to the connecting plate through nuts, but in this way, the threads are easy to be damaged when the bolts are stressed, and it is not easy to disassemble.

As an improvement to this embodiment, the support member 8 is two pieces, and is arranged on both sides of the wing; The tension to the inside can prevent the connecting bolt 3 and the connecting plate from being deformed, so that the reliability of the fixture is higher. Setting two supporting members can make the force bearing of the connecting plate more balanced, and the force bearing performance is also better.

As an improvement to this embodiment, the support member 8 is a bolt, which is easy to assemble and disassemble.

As an improvement to this embodiment, the first connecting plate 1 and the second connecting plate 2 are both formed with an L-shaped bend outward at the middle position, so as to avoid interference on the cross arm during installation.

Finally, it is noted that the above embodiments are only used to illustrate the technical solutions of the present utility model without limitation. Although the utility model has been described in detail with reference to the preferred embodiments, those of ordinary skill in the art should understand that the utility model can be Modifications or equivalent replacements of the technical solutions without departing from the spirit and scope of the technical solutions of the utility model shall be covered by the claims of the utility model.

Claims (5)

1. a separate type bolt docks the double-vane jig, and it is characterized in that: comprise first connecting plate and second connecting plate relative with first connecting plate, first connecting plate is provided with connecting hole with the end that second connecting plate is connected with cross-arm, is provided with connecting bolt in the connecting hole;

The first connecting plate arranged outside has first wing plate, and the second connecting plate arranged outside has second wing plate, is provided with the gold utensil connecting hole on first wing plate and second wing plate;

The end that first connecting plate is relative with second connecting plate and connecting bolt is connected through dismountable strutting piece.

2. separate type bolt butt joint double-vane jig according to claim 1; It is characterized in that: said connecting bolt is a stud; Be provided with the bolt protective sleeve that is rotatably assorted with it in the connecting hole; The bolt protective sleeve is with the connecting bolt threaded engagement, and it is nut shape that the bolt protective sleeve is positioned at the outer part of connecting hole.

3. separate type bolt butt joint double-vane jig according to claim 2, it is characterized in that: said strutting piece is two, and is arranged at the wing plate both sides.

4. separate type bolt butt joint double-vane jig according to claim 3, it is characterized in that: said strutting piece is a bolt.

5. separate type bolt butt joint double-vane jig according to claim 4, it is characterized in that: said first connecting plate and second connecting plate all are formed with L shaped bending laterally at medium position.

Images