CN218975215U - Ground potential installation rigid insulation protective cover for lightning protection tension insulator - Google Patents
Ground potential installation rigid insulation protective cover for lightning protection tension insulator Download PDFInfo
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- CN218975215U CN218975215U CN202223270121.7U CN202223270121U CN218975215U CN 218975215 U CN218975215 U CN 218975215U CN 202223270121 U CN202223270121 U CN 202223270121U CN 218975215 U CN218975215 U CN 218975215U
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Abstract
The utility model discloses a ground potential installation rigid insulation protective cover for a lightning protection tension insulator, which comprises a cross arm base, a discharge ring cover, two adjustable limiting plates and two electrified installation hangers, wherein the cross arm base comprises a base body, a hanger connecting block, a vertical insertion baffle connecting block, a discharge ring cover connecting block, two adjustable limiting plate connecting blocks and two magnet adsorption blocks; the two adjustable limiting plates are slidably arranged on the connecting blocks of the two adjustable limiting plates in a one-to-one correspondence manner; the discharging ring cover comprises a discharging ball shielding cover, a side mounting hanging lug connecting column, a discharging ring cover connecting port and a discharging ring shielding cover. The ground potential installation rigid insulation protective cover for the lightning protection tension insulator can shield the metal grounding part (the iron cross arm) of the installation part of the lightning protection tension insulator in the circuit equipment and the discharge ring/discharge ball connected with the metal grounding part, and improves the power supply reliability of the distribution network.
Description
Technical Field
The utility model relates to a ground potential installation rigid insulation protective cover for a lightning protection tension insulator.
Background
With the continuous promotion of distribution network insulation construction, the main cause of tripping faults of the distribution network overhead lines at present is external breaking factors, and birds nest and small animals climb in the external breaking factors to occupy a large proportion.
At present, the main problems are as follows: 1. the bare dew point of metal between electrified part of high voltage fuse and iron cross arm, nest very easily causes short circuit trouble once nesting, even the fuse adopts insulating cross arm basically also be difficult to avoid. 2. Most of the insulating covers are also soft silicon rubber insulating covers (such as transverse lightning arresters), the distance between the opening and the metal electrified part is short, and once nest is built, the metal electrified part at the opening of the insulating cover is very easy to form a power frequency flashover channel between the nest and the iron cross arm. 3. The rodent mice, snakes and other animal climbing line equipment cause a short circuit channel to be formed between the metal electrified part and the iron cross arm through the mice body, and particularly at the position of a discharge ring or a discharge ball of the lightning-proof tension insulator.
Disclosure of Invention
The utility model aims to overcome the defects of the prior art, and provides a ground potential installation rigid insulation protective cover for a lightning protection tension insulator, which can shield a metal grounding part (an iron cross arm) of an installation part of the lightning protection tension insulator in circuit equipment and a discharge ring/discharge ball connected with the metal grounding part, so that the power supply reliability of a distribution network is improved.
The technical scheme for achieving the purpose is as follows: a ground potential installation rigid insulation protection casing for lightning protection strain insulator, including cross arm base, ring cover that discharges, two adjustable limiting plates and two electrified installation hangers, wherein:
the cross arm base comprises a base body, a hanging lug connecting block, a vertical inserting baffle connecting block, a discharging ring cover connecting block, two adjustable limiting plate connecting blocks and two magnet adsorbing blocks, wherein the base body consists of a base top plate and two base front side plates, the top ends of the two base front side plates are connected with the left side and the right side of the front end of the base top plate in a one-to-one correspondence manner, the hanging lug connecting block and the two magnet adsorbing blocks are respectively arranged on the upper surface of the base top plate, and the two magnet adsorbing blocks are respectively arranged on the left side and the right side of the hanging lug connecting block; the two adjustable limiting plate connecting blocks are vertically arranged on the two magnet adsorption blocks in one-to-one correspondence; the vertical insertion baffle connecting block is arranged at the front end of the base top plate and is positioned between the two base front side plates; the discharge ring cover connecting block is arranged at the front end of the vertical insertion baffle connecting block;
the two adjustable limiting plates are slidably arranged on the connecting blocks of the two adjustable limiting plates in a one-to-one correspondence manner;
the discharge ring cover comprises a discharge ball shielding cover, a side mounting hanging lug connecting column, a discharge ring cover connecting port and a discharge ring shielding cover; the discharge ball shielding cover and the side mounting hanging lug connecting posts are arranged on the top end of the discharge ring shielding cover in tandem, and the discharge ring shielding cover connecting opening is arranged at the rear end of the discharge ring shielding cover; the discharge ring cover connecting block is inserted into the discharge ring cover connecting interface and is connected with the discharge ring cover connecting block through a self-tapping screw;
among the two electrified installation hangers, one electrified installation hanger is arranged on the hanger connecting block of the cross arm base, and the other electrified installation hanger is arranged on the side installation hanger connecting column of the discharge ring cover.
The ground potential mounting hard insulating protective cover for the lightning protection tension insulator further comprises a vertical inserted baffle, wherein the vertical inserted baffle comprises a baffle body, and a plurality of ventilation holes which are communicated from front to back are formed in the baffle body; a vertical inserting joint matched with the vertical inserting baffle joint block is arranged at the bottom end of the baffle body; the vertical insertion baffle plate connecting block is inserted into the vertical insertion connecting port, and the vertical insertion baffle plate connecting block and the vertical insertion connecting port are connected through self-tapping screws.
The ground potential installation rigid insulation protective cover for the lightning protection tension insulator is characterized in that all parts of the ground potential installation rigid insulation protective cover are made of rigid insulation materials.
The ground potential installation rigid insulation protective cover for the lightning protection tension insulator is characterized in that the vertical insertion baffle connecting block and the discharge ring cover connecting block are respectively in an inverted U shape.
The ground potential installation rigid insulation protective cover for the lightning protection tension insulator is characterized in that the hanging lug connecting blocks of the cross arm base and the side installation hanging lug connecting columns of the discharge ring cover are mutually perpendicular.
The ground potential installation rigid insulation protective cover for the lightning protection tension insulator comprises a transverse part and a vertical part which are connected to form an L shape, a sliding groove is arranged on the transverse part of each adjustable limiting plate, the two adjustable limiting plate connecting blocks are inserted into the sliding grooves of the two adjustable limiting plates in a one-to-one correspondence mode, and the vertical part of each adjustable limiting plate is located at the rear side of the top plate of the base.
The ground potential mounting hard insulating protective cover for the lightning-proof tension insulator can shield the metal grounding part (the iron cross arm) of the mounting part of the lightning-proof tension insulator and the discharge ring/discharge ball connected with the metal grounding part (the iron cross arm) in the circuit equipment, so that single-phase grounding caused by the fact that the high-voltage discharge ring/discharge ball and the low-voltage discharge ring/discharge ball are connected through an animal body due to the climbing action of a snake mouse is reduced; meanwhile, the branch lap joint problem of bird nesting can be reduced, so that the external breaking fault of the equipment position caused by animal activities is reduced, and the power supply reliability of the distribution network is improved; but also can form a co-fused and co-built life large circulation body with animals.
Drawings
Fig. 1 is a structural diagram of a ground potential mounting hard insulating protective cover for a lightning protection strain insulator according to the first embodiment;
FIG. 2 is a block diagram of a cross arm base;
FIG. 3 is a block diagram of an inserted baffle;
FIG. 4 is a block diagram of a discharge ring cover;
fig. 5 is a structural diagram of a ground potential mounting hard insulating protective cover for a lightning protection strain insulator according to the second embodiment.
Detailed Description
In order to enable those skilled in the art to better understand the technical scheme of the present utility model, the following detailed description is provided with reference to the accompanying drawings:
embodiment one:
referring to fig. 1, 2, 3 and 4, a ground potential installation rigid insulation protective cover for a lightning protection tension insulator according to a first embodiment of the present utility model is composed of a cross arm base 1, a vertical insertion baffle 2, a discharge ring cover 3, two adjustable limiting plates 5 and two electrified installation hangers 4.
Referring to fig. 2 again, the cross arm base 1 includes a base body, a hanging lug connecting block 11, a vertical inserting baffle connecting block 14, a discharging ring cover connecting block 15, two adjustable limiting plate connecting blocks 12 and two magnet adsorbing blocks 13, the base body is composed of a base top plate 16 and two base front side plates 17, and the top ends of the two base front side plates 17 are connected with the left and right sides of the front end of the base top plate 16 in a one-to-one correspondence manner. The hanging lug connecting block 11 and the two magnet adsorption blocks 13 are respectively arranged on the upper surface of the base top plate 16, the hanging lug connecting block 11 is transversely arranged, and the two magnet adsorption blocks 13 are respectively arranged on the left side and the right side of the hanging lug connecting block 11; the two adjustable limiting plate connecting blocks 12 are vertically arranged on the two magnet adsorption blocks 13 in a one-to-one correspondence manner; the vertical inserted baffle connecting block 14 is arranged at the front end of the base top plate 16 and is positioned between the two base front side plates 17; the discharge ring cover connecting block 15 is arranged at the front end of the vertical inserted baffle connecting block 14. The vertical insertion baffle connecting block 14 and the discharge ring cover connecting block 15 are respectively in an inverted U shape. The bottom of the magnet adsorption block 13 is provided with strong magnetism and is used for adsorbing the whole ground potential installation hard insulating protective cover on the iron cross arm when the ground potential is installed. Wherein electrified installation hangers 4 are correspondingly installed to electrified installation hangers connecting block 11, adjustable limiting plate 5 is correspondingly installed to adjustable limiting plate connecting block 12, vertical insertion baffle 2 is correspondingly installed to vertical insertion baffle connecting block 14, discharge ring cover 3 is correspondingly installed to discharge ring cover connecting block 15, and the butt joint can be reinforced by self-tapping screws.
Referring to fig. 3, the vertical inserted baffle 2 includes a baffle body 21, and a plurality of ventilation holes 22 penetrating from front to back are formed in the baffle body 21; a vertical plug connector 23 matched with the vertical plug baffle connector block 14 is arranged at the bottom end of the baffle body 21; the vertical insertion baffle connecting block 14 is inserted into the vertical insertion connecting port 23, and the vertical insertion baffle connecting block are connected through self-tapping screws. The vent 22 serves to reduce the frontal area of the overall shield, but the size of the vent 22 is not necessarily oversized to prevent penetration of bird nesting tree branches.
The two adjustable limiting plates 5 are slidably arranged on the two adjustable limiting plate connecting blocks 12 in a one-to-one correspondence manner; specifically, each adjustable limiting plate 5 is connected by a transverse portion 51 and a vertical portion 52 to form an L shape, a sliding groove 53 (see fig. 5) is formed in the transverse portion of each adjustable limiting plate 5, and two adjustable limiting plate connecting blocks 12 are inserted into the sliding grooves 52 of the two adjustable limiting plates in a one-to-one correspondence manner, so that the adjustable limiting plates 5 slide back and forth along the corresponding adjustable limiting plate connecting blocks 12. The vertical portion of each adjustable stop plate 5 is located on the rear side of the base top plate 16. The distance between the vertical part 52 of the adjustable limiting plate 5 and the front side plate 17 of the base can be adjusted by moving the adjustable limiting plate 5, so that the adjustable limiting plate is applicable to iron cross arms with various sizes, and the installation and use requirements of iron cross arms with different specifications of different circuits are met.
Referring to fig. 4 again, the discharge ring cover 3 includes a discharge ball shielding cover 31, side mounting lugs 32, a discharge ring cover engagement interface 33 and a discharge ring shielding cover 34; the discharge ball shielding cover 31 and the side mounting hanging lug connecting posts 32 are arranged at the top end of the discharge ring shielding cover 34 in tandem, and the discharge ring shielding cover connecting opening 33 is arranged at the rear end of the discharge ring shielding cover 34; the discharge ring cover connecting block 15 is inserted into the discharge ring cover connecting block 33, and the discharge ring cover connecting block 33 and the discharge ring cover connecting block 15 are connected through self-tapping screws; the discharge ball shade 31 and the discharge ring shade 34 are used for shading the exposed metal part of the discharge ball or the discharge ring on the lightning protection tension insulator.
Of the two live-wire mounting lugs 4, one live-wire mounting lug 4 is arranged on the lug connecting block 11 of the cross arm base 1, and the other live-wire mounting lug 4 is arranged on the side-mounting lug connecting column 32 of the discharge ring cover 3 for installation at the side ground potential of the line. The hanging lug connecting blocks 11 of the cross arm base are mutually perpendicular to the side mounting hanging lug connecting columns 32 of the discharge ring cover.
The ground potential installation hard insulation protective cover for the lightning protection tension insulator is characterized in that a cross arm base 1, a vertical insertion baffle 2, a discharge ring cover 3, two adjustable limiting plates 5 and two electrified installation hanging lugs 4 are respectively made of hard insulation materials. When installing, cross arm base 1 sets up and connects metal position at lightning protection strain insulator one end and iron cross arm, and metal position is connected to the effective lightning protection strain insulator one end and iron cross arm of shielding of cross arm base 1, and the ring cover 3 that discharges is used for shielding the metal exposed parts such as ring or the ball that discharges of lightning protection strain insulator, inserts baffle 2 immediately and plays the effect that stops snake mouse climbing, keeps apart high, the low pressure ring that discharges of animal body or bird nest branch overlap joint/ball that discharges, avoids causing the short circuit ground fault of high voltage band potential and iron cross arm ground potential because of the foreign matter overlap joint, and electrified installation hangers 5 are used for electrified installation tool's the operation of inserting and deviate from. Through the fore-and-aft sliding of the adjustable limiting plate, the whole ground potential installation rigid insulation protective cover can be applicable to iron cross arms with various sizes, and the installation and use requirements of the iron cross arms with different specifications of different circuits are met.
The ground potential installation rigid insulation protective cover for the lightning protection tension insulator can be used for carrying out ground potential live installation construction operation on a rod through a live installation tool when the lightning protection tension insulator is used: the vertical inserted baffle 2 can cover and use the iron cross arm position of most Zhang Fanglei insulator strings, is used for shielding the connection part of a discharge ring/discharge ball and part of the iron cross arm at the low voltage end, and mainly plays roles of blocking the crossing of a squirrel along the line, limiting the overlapping space of bird branches and isolating high voltage potential and ground potential; ground potential installation can be performed through two installation angles.
Embodiment two:
referring to fig. 5 again, the ground potential installation rigid insulation protection cover for the lightning protection tension insulator of the utility model is characterized in that due to the variation of line conditions, under the condition that the base rod top is provided with a overline, the ground potential installation of the rigid insulation protection cover with the vertical insertion baffle is limited by space and can not be installed, and the vertical insertion baffle 2 can be adjusted and detached, so that the simplified combination of the ground potential installation rigid insulation protection cover is formed to meet the actual installation and use requirements.
The ground potential installation rigid insulation protective cover for the lightning protection tension insulator is assembled through the special structural design of the rigid insulation material, and compared with the traditional soft silicone rubber jacket, the ground potential installation rigid insulation protective cover can realize the additional installation of line insulation protection without power failure. The protection shielding of the metal electrified part of the circuit equipment and the metal grounding part of the circuit equipment installation part can be met, the striding of rodents along the line and the climbing of the rodents with tooth meshing are reduced, the overlapping of the nesting branches of birds is reduced, the external breaking faults caused by activities such as nesting of birds and climbing of small animals are reduced, and the power supply reliability of the distribution network is improved. The direct upper pole live installation operation can be realized, an insulating arm trolley is not needed, the operation personnel and the operation tools are simplified, the working efficiency is improved, the equipment use cost is reduced, the uninterrupted operation range is expanded, the direct voltage drop for the fault tripping of the distribution network overhead line is realized, and the line maintenance cost and the fault overhaul cost are greatly reduced.
In summary, the ground potential mounting hard insulating protective cover for the lightning protection tension insulator can shield the metal grounding part (the iron cross arm) of the mounting part of the lightning protection tension insulator and the discharge ring/discharge ball connected with the metal grounding part in the circuit equipment, so that single-phase grounding caused by the climbing action of a snake mouse and through the connection of the animal body with the high-voltage discharge ring/discharge ball and the low-voltage discharge ring/discharge ball is reduced; meanwhile, the branch lap joint problem of bird nesting can be reduced, so that the external breaking fault of the equipment position caused by animal activities is reduced, and the power supply reliability of the distribution network is improved; but also can form a co-fused and co-built life large circulation body with animals.
It will be appreciated by persons skilled in the art that the above embodiments are provided for illustration only and not for limitation of the utility model, and that variations and modifications of the above described embodiments are intended to fall within the scope of the claims of the utility model as long as they fall within the true spirit of the utility model.
Claims (6)
1. A ground potential installation rigid insulation protection casing for lightning protection strain insulator, its characterized in that includes cross arm base, discharge ring cover, two adjustable limiting plates and two electrified installation hangers, wherein:
the cross arm base comprises a base body, a hanging lug connecting block, a vertical inserting baffle connecting block, a discharging ring cover connecting block, two adjustable limiting plate connecting blocks and two magnet adsorbing blocks, wherein the base body consists of a base top plate and two base front side plates, the top ends of the two base front side plates are connected with the left side and the right side of the front end of the base top plate in a one-to-one correspondence manner, the hanging lug connecting block and the two magnet adsorbing blocks are respectively arranged on the upper surface of the base top plate, and the two magnet adsorbing blocks are respectively arranged on the left side and the right side of the hanging lug connecting block; the two adjustable limiting plate connecting blocks are vertically arranged on the two magnet adsorption blocks in one-to-one correspondence; the vertical insertion baffle connecting block is arranged at the front end of the base top plate and is positioned between the two base front side plates; the discharge ring cover connecting block is arranged at the front end of the vertical insertion baffle connecting block;
the two adjustable limiting plates are slidably arranged on the connecting blocks of the two adjustable limiting plates in a one-to-one correspondence manner;
the discharge ring cover comprises a discharge ball shielding cover, a side mounting hanging lug connecting column, a discharge ring cover connecting port and a discharge ring shielding cover; the discharge ball shielding cover and the side mounting hanging lug connecting posts are arranged on the top end of the discharge ring shielding cover in tandem, and the discharge ring shielding cover connecting opening is arranged at the rear end of the discharge ring shielding cover; the discharge ring cover connecting block is inserted into the discharge ring cover connecting interface and is connected with the discharge ring cover connecting block through a self-tapping screw;
among the two electrified installation hangers, one electrified installation hanger is arranged on the hanger connecting block of the cross arm base, and the other electrified installation hanger is arranged on the side installation hanger connecting column of the discharge ring cover.
2. The ground potential mounting rigid insulation protective cover for the lightning protection tension insulator according to claim 1, further comprising a vertical insertion baffle plate, wherein the vertical insertion baffle plate comprises a baffle plate body, and a plurality of ventilation holes which are communicated from front to back are formed in the baffle plate body; a vertical inserting joint matched with the vertical inserting baffle joint block is arranged at the bottom end of the baffle body; the vertical insertion baffle plate connecting block is inserted into the vertical insertion connecting port, and the vertical insertion baffle plate connecting block and the vertical insertion connecting port are connected through self-tapping screws.
3. A ground potential mounting hard insulating shield for a lightning-proof tension insulator according to claim 1 or 2, wherein each part of the ground potential mounting hard insulating shield is made of a hard insulating material.
4. The ground potential mounting rigid insulating protective cover for a lightning protection tension insulator according to claim 1 or 2, wherein the vertical insertion baffle connecting block and the discharge ring cover connecting block are respectively in an inverted U shape.
5. A ground potential mounting rigid insulating shield for a lightning protection tension insulator according to claim 1 or 2, wherein the hanger engagement blocks of the cross arm base are mutually perpendicular to the side mounting hanger engagement posts of the discharge ring cover.
6. The ground potential mounting rigid insulating protective cover for a lightning protection tension insulator according to claim 1 or 2, wherein each adjustable limiting plate is connected by a transverse portion and a vertical portion to form an L shape, sliding grooves are formed in the transverse portion of each adjustable limiting plate, two adjustable limiting plate connecting blocks are inserted into the sliding grooves of the two adjustable limiting plates in a one-to-one correspondence manner, and the vertical portion of each adjustable limiting plate is located at the rear side of the top plate of the base.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202223270121.7U CN218975215U (en) | 2022-12-07 | 2022-12-07 | Ground potential installation rigid insulation protective cover for lightning protection tension insulator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202223270121.7U CN218975215U (en) | 2022-12-07 | 2022-12-07 | Ground potential installation rigid insulation protective cover for lightning protection tension insulator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN218975215U true CN218975215U (en) | 2023-05-05 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202223270121.7U Active CN218975215U (en) | 2022-12-07 | 2022-12-07 | Ground potential installation rigid insulation protective cover for lightning protection tension insulator |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN218975215U (en) |
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2022
- 2022-12-07 CN CN202223270121.7U patent/CN218975215U/en active Active
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