CN101931195B - Turn buckle typed steplessly adjustable phase-to-phase spacer bracket - Google Patents

Abstract

The invention provides a turn buckle typed steplessly adjustable phase-to-phase spacer bracket. The bracket comprises an adjustable turn buckle body, an adjustable turn buckle screw rod I, an adjustable turn buckle screw rod II, an adjustable turn buckle fixing plate and a U-shaped ring, wherein the central line on a wider surface of the adjustable turn buckle body is provided with a slot for components to pass through along a length direction, and the two end points of the adjustable turn buckle body is provided with through holes along the length direction; one end of the adjustable turn buckle screw rod I passes through a through hole at one end of the adjustable turn buckle body, and one end of the adjustable turn buckle screw rod II passes through a through hole at the other end of the adjustable turn buckle body; the adjustable turn buckle screw rod I and the adjustable turn buckle screw rod II are fixed on the adjustable turn buckle body through the adjustable turn buckle fixing plate; and the other end of the adjustable turn buckle screw rod II is connected with the U-shaped ring. The adjustable phase-to-phase spacer bracket provided by the invention cooperates with a four bundle conductor spacer in a circuit swaying area to adjust proper installation length according to the phase interval of the installation positions of the phase-to-phase spacers; and the adjustable phase-to-phase spacer bracket is extremely flexible and the problem that a ball head is easy to fall off is solved.

Description

A turnbuckle screw-type stepless adjustable phase-to-phase spacer bracket

Technical field:

The invention relates to an overhead power transmission line device, in particular to a turnbuckle screw type stepless adjustable interphase spacer rod support.

Background technique

During the operation of overhead transmission lines, various catastrophic accidents may occur, among which galloping is the more serious one. The harm caused by galloping is multifaceted. The light ones cause flashover and tripping, and the severe ones cause damage to hardware and insulators, broken strands and broken wires, loosening and detachment of tower bolts, and even tower collapse, resulting in major power grid accidents. With the development of China's power grid construction, transmission lines have characteristics and trends that are prone to galloping, such as large conductive cross-section, large number of splits, and compact structure, and the trend of line galloping prevention is more severe. Therefore, more and more anti-dance devices are used on the line, and among them, the spacer bar is one of the most commonly used effective anti-dance measures. The interphase spacer is installed between the two conductors and needs to use connecting fittings when connecting with the sub-conductors. In the same transmission line, the phase spacing is different due to the unbalanced tension of different wires, the connection of line fittings, and the difference in creep characteristics of wires. At present, the connecting fittings of interphase spacers in China are all fixed lengths. Before installing interphase spacers, laser distance measuring devices must be used to measure the phase distance at the installation position of interphase spacers, and then according to each phase distance. Customized interphase spacers. Laser ranging is expensive, and tailor-made interphase spacers are time-consuming and labor-intensive.

The utility model patent document with the publication number CN201336542Y discloses an adjustable interphase spacer connecting fitting, which includes two adjusting connecting plates and a combined ball socket. The hole connecting the combined ball socket; the other end is the fixed end, and there are multiple installation holes in the extension direction of the fixed end; the combined ball socket is composed of two hemispherical spaces corresponding to the structure, and a ball head accommodation space is formed in the middle. The connecting fitting adopts the method of manually adjusting and adjusting the installation hole of the connecting plate to adjust the length of the interphase spacer connecting fitting, so as to achieve the purpose of installation. However, there are still some disadvantages in this adjustable interphase spacer connecting fitting. First, the fitting can only be adjusted to several lengths, and the adjustment range is narrow. Secondly, most of the fittings are connected by ball joints, which are prone to balls during line operation. The head falls off, which affects the safety and stability of the line.

Contents of the invention

In order to overcome the above-mentioned defects of the prior art, the object of the present invention is to provide a turnbuckle screw-type stepless adjustable interphase spacer bracket, which has compact structure, convenient installation, and multi-level adjustable performance. Safer and more stable, flexible rotation and other advantages.

In order to achieve the above object, the present invention proposes a turnbuckle screw-type steplessly adjustable interphase spacer bracket, which is connected to the sub-conductor spacer. The spacer bar bracket includes an adjustable turnbuckle body, an adjustable turnbuckle screw I, an adjustable turnbuckle screw II, an adjustable turnbuckle fixing plate, and a U-shaped ring. The center of the wider side of the adjustable turnbuckle body along the length direction There is a groove through the member on the line, and there are through holes at the two end points of the adjustable turnbuckle body along the length direction, and one end of the adjustable turnbuckle screw 1 passes through the through hole at one end of the adjustable turnbuckle body. hole, one end of the adjustable turnbuckle screw II passes through the through hole at the other end of the adjustable turnbuckle body, and the adjustable turnbuckle screw I and adjustable turnbuckle screw II are fixed on the On the adjustable turnbuckle body, the other end of the adjustable turnbuckle screw rod 1 is connected with the U-shaped ring.

In a preferred turnbuckle screw-type steplessly adjustable interphase spacer bracket provided by the present invention, the spacer body frame is a quadrilateral axisymmetric double-layer structure, and wire clips are provided at the four corners of the spacer body frame. Spacer bar body frame is connected and fixed with the other end of adjustable turnbuckle screw rod 1.

The second preferred turnbuckle screw-type steplessly adjustable spacer bar bracket provided by the present invention: the adjustable turnbuckle body is in the shape of wide ends and narrow middle when viewed from the narrow side along the length direction.

The third preferred turnbuckle screw type stepless adjustable interphase spacer bracket provided by the present invention: the adjustable turnbuckle screw II is a "T"-shaped member, and the adjustable turnbuckle screw II does not extend into the adjustable turnbuckle One end of the blue body is symmetrically provided with two screw holes, and the other end is provided with a screw hole.

The fourth preferred turnbuckle screw type stepless adjustable interphase spacer bracket provided by the present invention: the two ends of the adjustable turnbuckle screw I have a screw hole respectively.

The fifth preferred turnbuckle screw type stepless adjustable interphase spacer bracket provided by the present invention: a screw hole is opened at the center of the adjustable turnbuckle fixing plate, and the threaded hole is connected with the adjustable turnbuckle screw rod. I and adjustable turnbuckle screw rod II extend into the screw hole that one end of the adjustable turnbuckle body opens is identical.

The sixth preferred turnbuckle screw type stepless adjustable interphase spacer bracket provided by the present invention: there is a screw hole at the opening of the U-shaped ring, and the adjustable turnbuckle screw I does not extend into the adjustable turnbuckle The screw holes on one end of the body are the same.

The seventh preferred turnbuckle screw type steplessly adjustable interphase spacer bracket provided by the present invention: two screw holes are symmetrically opened at the midpoint of one side of the body frame of the sub-conductor spacer, and the screw holes are connected to the The two screw holes symmetrically opened on the end of the adjustable turnbuckle screw II that does not extend into the adjustable turnbuckle body are the same, and the adjustable turnbuckle screw II and the sub-conductor spacer are fixedly connected by bolts through these two screw holes.

The features and advantages of the present invention are: the turnbuckle screw type stepless adjustable interphase spacer bracket of the present invention adopts manual stepless adjustment to adjust the length of the interphase spacer connecting fittings. , tighten the fastening bolts on the adjustable turnbuckle fixing plate, and the part that the adjustable turnbuckle screw rod I and the adjustable turnbuckle screw rod II extend into the adjustable turnbuckle body is fixed on the adjustable turnbuckle body. And the present invention adopts the connection mode of the right-angle hanging plate instead of the connection mode of the ball head and the ball socket, which makes the connection safer and more stable, and the rotation is more flexible, and also solves the problem of the ball head falling off. The turnbuckle screw-type stepless adjustable phase-to-phase spacer bracket and the sub-wire spacer of the present invention are installed in the easy-to-dance area of the line, and the appropriate installation length can be adjusted according to the phase distance of the installation position of the phase-to-phase spacer, which has greater flexibility; and , no need for laser ranging, which greatly reduces the initial investment, and also does not need to tailor-made interphase spacers according to the phase spacing, which reduces the production cost. The adjustable phase-to-phase spacer bracket and the four-split wire spacer of the present invention are simple in structure, flexible in installation, safe and stable in work, can achieve the effect of anti-dancing without increasing manpower and material resources, and avoid huge losses that may be caused by galloping And a large amount of expenses for galloping treatment, which greatly reduces the maintenance cost of overhead lines.

Description of drawings

Figure 1 is an assembly drawing of the turnbuckle screw type steplessly adjustable interphase spacer bracket and the sub-wire spacer;

Fig. 2 is the front view of the sub-wire spacer;

Fig. 3 is the front view of the adjustable turnbuckle screw;

Fig. 4 is a schematic structural view of the adjustable turnbuckle body, wherein Fig. 4a is a front view of the adjustable turnbuckle body, and Fig. 4b is a side view of Fig. 4a;

Fig. 5 is a schematic structural view of the adjustable turnbuckle screw I, wherein Fig. 5a is a front view of the adjustable turnbuckle screw I, and Fig. 5b is a side view of Fig. 5a;

Fig. 6 is a schematic structural view of the adjustable turnbuckle II, wherein Fig. 6a is a front view of the adjustable turnbuckle II, and Fig. 6b is a side view of Fig. 6a;

Fig. 7 is a schematic structural view of the adjustable turnbuckle fixing plate, wherein Fig. 7a is a front view of the adjustable turnbuckle fixing plate, and Fig. 7b is a top view of Fig. 7a;

Fig. 8 is a schematic structural view of a U-shaped ring, wherein Fig. 8a is a front view of a U-shaped ring, and Fig. 8b is a left view of Fig. 8a;

Among them, 1-wire clamp, 2-spacer body frame, 3-adjustable turnbuckle screw II, 4-adjustable turnbuckle body, 5-adjustable turnbuckle fixing plate, 6-adjustable turnbuckle screw I, 7- U-shaped ring, 8-insulator ring body fittings, 9-cotter pin.

Detailed ways

Below in conjunction with embodiment the invention is described in further detail.

As shown in Figures 1 to 8, the invention of this example is composed of a turnbuckle screw-type steplessly adjustable interphase spacer bracket and a sub-wire spacer connection. Adjustable turnbuckle body 4, adjustable turnbuckle screw rod I6, adjustable turnbuckle screw rod II3, adjustable turnbuckle fixing plate 5, U-shaped ring 7 and insulator ring body fittings 8 are composed of, and the adjustable turnbuckle body is 4 Cuboid strip shape, also can be other regular strip shape, this adjustable flower orchid body is viewed from the narrower side along the length direction, is the shape that two ends are wide and the middle is narrow, this adjustable flower orchid body is along the wider side of the length direction A slot penetrating the member is opened on the center line, and through holes are respectively opened at two end points of the adjustable turnbuckle body along the length direction. Said adjustable turnbuckle screw rod II3 is a "T" shaped member, and one end of the head of the member is symmetrically provided with two screw holes, and the other end of the member is provided with a screw hole. The sizes of the through holes respectively opened at the two end points of the flange body along the length direction correspond to each other. The size of said adjustable turnbuckle screw rod I6 one end just corresponds to the size of the through holes that have respectively at the two end points of the adjustable turnbuckle body extension direction, and there is a screw hole on this end, and the other end also has a screw hole. There is a screw hole. Said adjustable turnbuckle fixing plate 5 is two thin plates up and down, a screw hole is arranged at the center of the adjustable turnbuckle fixing plate, and the size of the screw hole is the same as that of the adjustable turnbuckle screw rod I6 and the adjustable turnbuckle screw rod II3 respectively. The screw holes on one end of the adjustable turnbuckle body are of the same size. Said U-shaped ring 7 openings have a screw hole, which is identical with the screw hole that said adjustable turnbuckle screw rod 1 does not stretch into the adjustable turnbuckle body one end. One end of said adjustable turnbuckle screw rod II3 extends into the adjustable turnbuckle body from a through hole at one end of the adjustable turnbuckle body 4, and two adjustable turnbuckle fixing plates 5 connect the adjustable turnbuckle screw rod II3 up and down. This end clamps, is fixedly connected by bolt, and one end of said adjustable turnbuckle screw rod I6 stretches in the adjustable turnbuckle body from the through hole of the other end of the adjustable turnbuckle body 4, and is also adjustable through the upper and lower two pieces. The turnbuckle fixing plate 5 clamps this end of the adjustable turnbuckle screw rod I6, and is fixed by bolt connection. The other end of the adjustable turnbuckle screw rod I6 extends into the opening of the U-shaped ring 7, and the screw holes correspond to each other. Bolt and nut are connected and fixed, and pin holes are arranged on the bolt, and cotter pin 9 is put into. The other end of the ring body of the U-shaped ring 7 is connected to the insulator ring body fitting 8 by means of a right-angle hanging plate. This connection method not only ensures the flexibility of rotation, but also solves the problem of the ball head falling out.

As shown in Figure 2, the sub-conductor spacer of this example is a four-split sub-conductor spacer, which is composed of a wire clip 1 and a spacer body frame 2. The wire clip 1 adopts an ordinary damping type wire clip, and the spacer The body frame 2 is a quadrilateral axisymmetric double-layer structure, and the four corners of the spacer body frame 2 are provided with wire clips 1, and two screw holes are symmetrically opened on the midpoint of the sub-conductor spacer body frame 2 side. The holes are the same as the two symmetrically opened screw holes on one end of the adjustable turnbuckle screw rod II3 that does not extend into the adjustable turnbuckle body 4, and the adjustable turnbuckle screw rod II3 and the adjustable turnbuckle screw rod II3 are fixedly connected with bolts through these two screw holes. Sub wire spacer.

As shown in Figure 1, one end of the adjustable turnbuckle screw rod II3 that does not extend into the adjustable turnbuckle body extends into the side where two screw holes are provided on the spacer body frame 2, and is fixed by bolt connection, thus realizing The connection between the turnbuckle screw type stepless adjustable phase-to-phase spacer bracket and the sub-conductor spacer can be applied to overhead transmission lines.

Finally, it should be noted that: the above embodiments are only used to illustrate the technical solutions of the present invention and not to limit them. The present invention has been described in detail in conjunction with the above embodiments, and those of ordinary skill in the art should understand that: Modifications or equivalent replacements can be made to the specific implementation of the present invention, but these modifications or changes are all within the scope of protection of the pending claims of the application.

Claims (8)

1. a turnbuckle screw type stepless adjustable spacer bar support between phases, the support is connected with the sub-conductor spacer bar, it is characterized in that the spacer bar support includes an adjustable turnbuckle body, an adjustable turnbuckle screw rod 1, an adjustable turnbuckle Turnbuckle screw II, adjustable turnbuckle fixing plate and U-shaped ring, the adjustable turnbuckle body has a groove through the component along the center line of the wider side in the length direction, and the adjustable turnbuckle body is along the length There are through holes at the two ends of the direction, one end of the adjustable turnbuckle screw I passes through the through hole at one end of the adjustable turnbuckle body, and one end of the adjustable turnbuckle screw II passes through the adjustable turnbuckle body The through hole at the other end, the adjustable turnbuckle screw I and the adjustable turnbuckle screw II are fixed on the adjustable turnbuckle body through the adjustable turnbuckle fixing plate, and the other end of the adjustable turnbuckle screw II is connected to the adjustable turnbuckle screw II. U-shaped ring connection. 2. The turnbuckle screw-type stepless adjustable phase-to-phase spacer bracket according to claim 1, characterized in that: the sub-conductor spacer comprises a spacer body frame, and the spacer body frame is a quadrilateral axisymmetric double layer structure, the four corners of the spacer bar body frame are provided with wire clamps, and the spacer bar body frame is connected and fixed with the other end of the adjustable turnbuckle screw rod 1. 3. The turnbuckle screw-type stepless adjustable interphase spacer bracket as claimed in claim 1 or 2, characterized in that: the extension direction of the adjustable turnbuckle body is viewed from the narrow side, which is wide at both ends and narrow in the middle. shape. 4. The turnbuckle screw type stepless adjustable interphase spacer bracket as claimed in claim 1, characterized in that: the adjustable turnbuckle screw I is a "T"-shaped member, and the adjustable turnbuckle screw I is not extended. Two screw holes are symmetrically opened on one end of the adjustable turnbuckle body, and one screw hole is opened on the other end. 5. The turnbuckle screw-type steplessly adjustable interphase spacer bracket as claimed in claim 1, characterized in that: two ends of the adjustable turnbuckle II are respectively provided with a screw hole. 6. The turnbuckle screw type stepless adjustable interphase spacer bracket as claimed in claim 1, characterized in that: there is a screw hole at the center of the adjustable turnbuckle fixing plate, and the screw hole is connected with the adjustable turnbuckle. Adjustable turnbuckle screw rod I and adjustable turnbuckle screw rod II extend into the same screw hole that is opened at one end of the adjustable turnbuckle body. 7. The turnbuckle screw type stepless adjustable interphase spacer bracket as claimed in claim 1, characterized in that: there is a screw hole at the opening of the U-shaped ring, and the adjustable turnbuckle screw II does not extend into it. The screw holes opened at one end of the adjustable turnbuckle body are the same. 8. The turnbuckle screw-type stepless adjustable interphase spacer bracket as claimed in claim 2, characterized in that: two screw holes are symmetrically opened at the midpoint of one side of the sub-wire spacer body frame, and the screw holes The hole is the same as the two screw holes that are symmetrically opened on one end of the adjustable turnbuckle screw I that does not extend into the adjustable turnbuckle body, and the distance between the adjustable turnbuckle screw I and the sub-conductor is fixedly connected by bolts through the above screw holes. Great.

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