CN204516500U - A kind of two suspended compound insulator string - Google Patents

Abstract

The utility model discloses a double-suspended composite insulator string, which comprises a connecting plate, on which a plurality of suspension clamps for conducting wires are hung on the connecting plate, and a first insulator string connected to the transmission tower is arranged on the top of the connecting plate. and the second insulator string, each of the suspension clamps is provided with a wind deflection device. In this double-suspension composite insulator string, the first insulator string and the second insulator string connected to the transmission tower are arranged on the connecting plate, and the connecting plate is connected to the wire through the suspension clamp, so that the utility model increases the connection through the improvement of the above structure. While the mechanical strength of the wire is guaranteed, the simplicity of the overall structure is ensured, the production cost is reduced, the line investment is saved, and the line installation and maintenance are also convenient. In addition, the wind deflection device installed on each suspension clamp can improve the wind deflection capability of the entire insulator string and avoid wind deflection discharge accidents.

Description

A double-suspended composite insulator string

technical field

The utility model is used in the field of power transmission lines, in particular to a double-suspended composite insulator string.

Background technique

With the development of industry, the user's demand for electric energy is getting higher and higher, and the capacity of the transmission line is developing in a larger direction. As the capacity of the line increases, the cross-section of the wire increases, and the weight of the guide increases. Among them, the connection between the tower and the line mainly depends on various connecting fittings, so the requirements for the fittings connecting the wire and the tower are getting higher and higher, the mechanical strength requirements of the fittings must be increased, and the high-strength fittings not only cost more High, bulky and complex structure, resulting in high line investment and inconvenience to line installation and maintenance.

In recent years, due to climate change, windy weather has gradually increased, which has brought serious threats to the safe operation of power lines. Wind deflection discharge accidents on transmission lines caused by strong winds have occurred frequently. The length of the porcelain or glass insulator string is increased, the radius of the gap circle is increased, and the ability to resist wind deflection discharge is reduced; then there are a large number of applications of composite insulators, because composite insulators are light in weight and poor in wind deflection resistance, prone to wind deflection discharge accidents .

Utility model content

In order to solve the above problems, the utility model provides a double-suspended composite insulator string with simple structure, convenient installation, high mechanical strength, and improved ability to prevent wind deflection.

The technical solution adopted by the utility model to solve the technical problem is: a double-suspended composite insulator string, including a connecting plate, on which a number of suspension clamps for conducting wires are suspended on the connecting plate, and are connected to the top of the connecting plate to set There are a first insulator string and a second insulator string connected to the transmission tower, and a wind deflection device is provided on each of the suspension clamps.

As a further improvement of the technical solution of the present utility model, the front ends of the first insulator string and the second insulator string are connected to a ball-joint hanging ring, and the ball-joint hanging ring is equipped with U-shaped bolts that can be connected to the transmission tower. Both ends of the first insulator string and the second insulator string are connected to the connecting plate through the bowl hanging plate.

As a further improvement of the technical solution of the utility model, arc rings are installed on the ball hanging ring and the bowl hanging plate.

As a further improvement of the technical solution of the utility model, both the first insulator string and the second insulator string use composite insulators.

As a further improvement of the technical solution of the present utility model, the connecting plate is a three-split connecting plate suspended with three suspension clips, and each of the suspension clips is suspended on the three-split connecting plate through a U-shaped clip.

As a further improvement of the technical solution of the utility model, the wind deflection device includes a U-shaped ring fastened on the outside of the suspension wire clamp, and the top end of the suspension wire clamp is provided with a first connecting hole facing to it. The top of the type ring is provided with a second connecting hole opposite, and the U-shaped ring is connected with the suspension clamp through the bolts passing through the first connecting hole and the second connecting hole, and the arc top part of the U-shaped ring is suspended A ball-end hanging ring is formed below the wire clip, and a counterweight mechanism that can install several heavy hammers is connected with the ball-end hanging ring.

As a further improvement of the technical solution of the present invention, the counterweight mechanism includes a U-shaped screw that straddles the ball-head hanging ring, and the weight piece penetrates the U-shaped screw and locks it through the nut at the bottom of the U-shaped screw. tight.

As a further improvement of the technical solution of the utility model, each of the suspension wire clamps is equipped with a wire protection sleeve.

Beneficial effects of the utility model: the double-suspension composite insulator strings are provided with the first insulator string and the second insulator string connected to the transmission tower on the connecting plate, and the connecting plate is connected to the wire through the suspension clamp, so that the utility model can pass The improvement of the above structure not only increases the mechanical strength of the connecting wire, but also ensures the simplicity of the overall structure, reduces the production cost, saves the line investment, and facilitates the line installation and maintenance. In addition, the wind deflection device installed on each suspension clamp can improve the wind deflection capability of the entire insulator string and avoid wind deflection discharge accidents.

Description of drawings

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

Fig. 1 is a front view of the utility model embodiment structure;

Fig. 2 is a side view of the structure of the utility model embodiment;

Fig. 3 is a schematic diagram of the structure of the wind deflection prevention device on the vertical wire clip according to the embodiment of the utility model.

Detailed ways

Referring to Fig. 1 to Fig. 3, the utility model provides a double-suspended composite insulator string, which includes a connecting plate 1, on which a hanging clamp 2 for conducting wires is suspended, and the connecting plate 1 is suspended with three A three-split joint plate of a suspension line clamp 2, each of the suspension line clamps 2 is suspended on the three-split joint plate by a U-shaped clamp 3. A grommet 4 is housed in each of the suspension clamps 2 . The first insulator string 5 and the second insulator string 6 connected to the transmission tower are connected to the top of the connecting plate 1, and both the first insulator string 5 and the second insulator string 6 use composite insulators. The front ends of the first string of insulators 5 and the second string of insulators 6 are connected to a ball joint ring 7, and the ball joint ring 7 is equipped with a U-shaped bolt 8 that can be connected to a transmission tower. The first string of insulators 5 and the ends of the second insulator string 6 are connected to the connecting plate 1 through the bowl hanging plate 9 . The arc ring 10 is all housed on the described ball hanging ring 7 and the bowl hanging plate 9 .

Each of the suspension clamps 2 is provided with a wind deflection device. The wind deflection device includes a U-shaped ring 11 fastened on the outside of the suspension wire clamp 2, the top end of the suspension wire clamp 2 is provided with a first connecting hole directly opposite, and the top end of the U-shaped ring 11 is provided with The second connection hole facing the U-shaped ring 11 is connected with the suspension clamp 2 through the bolt 12 passing through the first connection hole and the second connection hole. The bottom of 2 forms a ball joint link, is connected with described ball joint link and is provided with the counterweight mechanism that can install some heavy hammer plates 13. The counterweight mechanism includes a U-shaped screw 14 straddling the ball hanging ring, and the weight piece 13 penetrates the U-shaped screw 14 and is locked by a nut 15 at the bottom of the U-shaped screw 14 . The U-shaped ring 11 is directly installed on the first connection hole of the suspension clamp 2. When in use, the entire device can be installed on the upper connecting plate 1 through a bolt 12, and at the same time, the arc top part of the U-shaped ring 11 is directly connected. The ball head hanging ring of the lower counterweight mechanism has a simple structure, which simplifies installation and disassembly while saving production costs.

In this double-suspension composite insulator string, the first insulator string 5 and the second insulator string 6 connected to the transmission tower are arranged on the connecting plate 1, and the connecting plate 1 is connected to the wire through the suspension clamp 2, so that the utility model adopts the above structure The improvement of the invention not only increases the mechanical strength of the connecting wire, but also ensures the simplicity of the overall structure, reduces the production cost, saves line investment, and facilitates line installation and maintenance. In addition, the windage-deflection device provided on each suspension clamp 2 can improve the windage-deflection capability of the entire insulator string and avoid windy-deflection discharge accidents.

Of course, the present invention is not limited to the above-mentioned embodiments. Those skilled in the art can also make equivalent modifications or replacements without violating the spirit of the present utility model. These equivalent modifications or replacements are all included in the claims of this application. within the limited range.

Claims (8)

1. a two suspended compound insulator string, it is characterized in that: comprise yoke plate, described yoke plate is hung with some suspension clamps bearing wire, be connected with described yoke plate top the first insulator string and the second insulator string being provided with and being connected power transmission tower, and each described suspension clamp is equipped with wind deflection preventive.

2. according to claim 1 pair of suspended compound insulator string, it is characterized in that: the equal connecting ball head link in front end of described first insulator string and the second insulator string, described ball-eye is equipped with the U-bolt that can be connected with power transmission tower, described first insulator string is all connected with yoke plate by socket-clevis eye with the end of the second insulator string.

3. according to claim 2 pair of suspended compound insulator string, is characterized in that: described ball-eye and socket-clevis eye are all equipped with arc ring.

4. according to claim 1 pair of suspended compound insulator string, is characterized in that: described first insulator string and the second insulator string all adopt composite insulator.

5. according to claim 1 pair of suspended compound insulator string, is characterized in that: described yoke plate is the tripartition yoke plate being hung with three suspension clamps, and each described suspension clamp is all suspended on described tripartition yoke plate by U-shaped folder.

6. according to claim 1 pair of suspended compound insulator string, it is characterized in that: described wind deflection preventive comprises the U-shaped ring of spiral-lock outside described suspension clamp, the top of described suspension clamp is provided with the first just right connecting hole, the top of described U-shaped ring is provided with the second just right connecting hole, described U-shaped ring is by being connected with suspension clamp with the bolt of the second connecting hole through described first connecting hole, the arc top portion of U-shaped ring forms ball-eye in the below of suspension clamp, is connected with described ball-eye the balance weight mechanism can installing some heavy punch pieces.

7. according to claim 6 pair of suspended compound insulator string, is characterized in that: described balance weight mechanism comprises the U-shaped screw striding across described ball-eye, and described heavy punch piece penetrates described U-shaped screw and by the nut check of U-shaped screw bottom.

8. according to claim 1 pair of suspended compound insulator string, is characterized in that: all wire bushing is housed in each described suspension clamp.