CN215934423U

CN215934423U - Lightning-proof overhead line for power engineering

Info

Publication number: CN215934423U
Application number: CN202122286461.8U
Authority: CN
Inventors: 朱清远
Original assignee: Yunnan Xinyuan Power Engineering Co ltd
Current assignee: Yunnan Xinyuan Power Engineering Co ltd
Priority date: 2021-09-22
Filing date: 2021-09-22
Publication date: 2022-03-01
Anticipated expiration: 2031-09-22

Abstract

The utility model discloses a lightning protection overhead line for power engineering, which relates to the technical field of power engineering and comprises an opening rod, wherein a fixing structure is arranged on the outer side of the opening rod, a cross arm is arranged on the outer ring of the fixing structure, an insulator is arranged on the outer surface of the upper end of the cross arm, an overhead line is arranged at the top end of the insulator, a lightning protection structure is arranged on the outer ring of the overhead line, the fixing structure comprises an upper lantern ring, a lower lantern ring is arranged on the outer ring of the opening rod, which is close to the lower side of the upper lantern ring, and a supporting rod is arranged at the joint of the lower lantern ring and the upper lantern ring; in the overhead line installation, fixed knot constructs can carry on spacingly and fixed with the cross arm, prevents that the skew of cross arm in the use from rotating, improves its stability, at the thunderbolt in-process for thunder and lightning transmits to ground, thereby protects overhead line circuit.

Description

Lightning-proof overhead line for power engineering

Technical Field

The utility model relates to the technical field of power engineering, in particular to a lightning-proof overhead line for power engineering.

Background

The overhead line is a transmission line for transmitting electric energy by fixing a transmission conductor on a tower erected on the ground through an insulator, and comprises a conductor, an overhead ground wire, an insulator string, a tower, a grounding device and the like; however, the existing overhead line has certain disadvantages in the use process, wherein the composition of the line does not have the lightning protection effect, the line is easily damaged in the lightning striking process, and meanwhile, in the line installation process, the position of the cross arm is fixed and the hoop is usually used, the hoop is wrapped on the outer surface of the tension rod, the stability is poor, and the position is easily rotated and deviated.

SUMMERY OF THE UTILITY MODEL

Aiming at the defects of the prior art, the utility model provides an electric power engineering lightning protection overhead line, which solves the problem of position deviation in the lightning protection and cross arm installation processes of the overhead line.

In order to achieve the purpose, the utility model is realized by the following technical scheme: the lightning protection overhead line for the power engineering comprises an opening rod, wherein a fixing structure is installed on the outer side of the opening rod, a cross arm is installed on the outer ring of the fixing structure, an insulator is installed on the outer surface of the upper end of the cross arm, an overhead line is installed at the top end of the insulator, and a lightning protection structure is installed on the outer ring of the overhead line;

the fixing structure comprises an upper lantern ring, a lower lantern ring is arranged on the outer ring of the stretching rod close to the lower side of the upper lantern ring, a supporting rod is installed at the joint of the lower lantern ring and the upper lantern ring, moving holes are formed in the outer rings of the upper lantern ring and the lower lantern ring, an installation bolt is installed inside each moving hole, a fastening pad is installed on the outer surface of one end of each installation bolt, and a groove is formed in the outer surface of the stretching rod;

the lightning protection structure comprises a lightning arrester, a connecting rod is arranged at the upper end of the lightning arrester, a sleeve is arranged on the outer ring, close to an overhead line, of the top end of the connecting rod, a connecting plate is arranged at the lower end of the lightning arrester, an installation block is installed at one end of the connecting plate, a fixing bolt is installed on the outer surface of the upper end of the installation block, and a fixing groove is formed in the outer side of the cross arm, close to one side of the installation block.

As a further technical scheme of the utility model, the tension rods are in sliding connection with the fixed structure, the cross arms are in fixed connection with the fixed structure and are in rectangular structures, the number of the insulators is four, the insulators are symmetrically arranged, and the overhead lines are symmetrically arranged.

As a further technical scheme of the utility model, the diameters of the upper lantern ring and the lower lantern ring are equal, the upper lantern ring and the lower lantern ring are both of annular structures, the number of the support rods is four groups and the support rods are arranged in a rectangular shape, the number of the movable holes is a cylindrical structure, and the number of the movable holes is a plurality of groups and the movable holes are arranged in an annular shape.

As a further technical scheme of the utility model, the diameter of the mounting bolt is smaller than that of the movable hole, the number of the mounting bolts is equal to that of the movable hole, the diameter of the fastening pad is equal to that of the tail end of the mounting bolt, the fastening pad is made of plastic, the number of the grooves is four, the grooves are annularly arranged, and the cross sectional area of each groove is larger than that of each fastening pad.

As a further technical scheme, the number of the lightning arresters is two, the lightning arresters are symmetrically arranged, the lightning arresters are metal oxide lightning arresters, the top end of the connecting rod is of an arc-shaped structure, the connecting rod is fixedly connected with the sleeve, the sleeve is of a hollow cylindrical structure, the diameter of the inner ring of the sleeve is larger than that of the overhead line, and the two are attached to each other.

As a further technical scheme, the connecting plate is in conductive connection with the lightning arrester, the connecting plate is of an arc-shaped structure, the connecting plate is in welded connection with the mounting blocks, and the mounting blocks are arranged in two groups and are symmetrically arranged.

As a further technical scheme of the utility model, the mounting block is of a rectangular structure, the number of the fixing bolts is four, the fixing bolts are symmetrically arranged, the number of the fixing grooves is equal to that of the fixing bolts, and the fixing grooves are matched with the fixing bolts.

Advantageous effects

The utility model provides a lightning protection overhead line for an electric power engineering. Compared with the prior art, the method has the following beneficial effects:

1. an electric power engineering lightning protection overhead line is provided, a lower lantern ring is arranged on the lower side of an outer ring of a stretching rod close to an upper lantern ring, a supporting rod is arranged at the joint of the lower lantern ring and the upper lantern ring, moving holes are formed in the outer rings of the upper lantern ring and the lower lantern ring, a mounting bolt is arranged in each moving hole, a fastening pad is arranged on the outer surface of one end of each mounting bolt, a groove is formed in the outer surface of the stretching rod, in the process of installing the overhead line, the upper lantern ring and the lower lantern ring are matched with each other to enable the outer surface of the tension rod to be wrapped by the upper lantern ring and the lower lantern ring, after the mounting bolt is aligned with the connecting hole and the groove, the mounting bolt rotates along the outer surface of the inner side of the connecting hole until the fastening pad is attached to the outer surface of the inner side of the groove until the fastening pad is fastened and connected, and the rest mounting bolts are mounted, and finally the cross arm is fixed, so that the stability of the cross arm is improved, and the cross arm is prevented from rotating.

2. The utility model provides an electric power engineering lightning protection is struck to air wire, upper end through the arrester is provided with the connecting rod, the outer lane that the top of connecting rod is close to the overhead line is provided with the sleeve, the lower extreme of arrester is provided with the connecting plate, the installation piece is installed to the one end of connecting plate, the upper end surface mounting of installation piece has fixing bolt, the outside of cross arm is close to one side of installation piece and has seted up the fixed slot, in the overhead line installation, overlap the sleeve to the overhead line surface, keep unified horizontal plane with the installation piece of connecting plate one side and fixed slot, install fixedly both through fixing bolt and fixed slot, make the arrester be connected at overhead line and cross arm, the connecting plate has the effect of ground connection, the sleeve is the high-voltage end with the connecting rod, thereby in the thunderbolt in-process, make thunder and lightning transmit to ground, thereby protect the overhead line circuit.

Drawings

FIG. 1 is a schematic view of a power engineering lightning protection overhead line;

FIG. 2 is a schematic structural diagram of a cross arm and a fixed structure in an electric power engineering lightning protection overhead line;

FIG. 3 is a schematic structural diagram of a tension rod in an overhead line for power engineering lightning protection;

FIG. 4 is a schematic view of a lightning protection structure in an overhead line for power engineering lightning protection;

fig. 5 is an enlarged view of a in fig. 2 of an electrical engineering lightning protection overhead line.

In the figure: 1. stretching a rod; 2. a fixed structure; 21. an upper collar; 22. a lower collar; 23. a support bar; 24. moving the hole; 25. installing a bolt; 26. a fastening pad; 27. a groove; 3. a cross arm; 4. an insulator; 5. an overhead line; 6. a lightning protection structure; 61. a lightning arrester; 62. a connecting rod; 63. a sleeve; 64. a connecting plate; 65. mounting blocks; 66. fixing the bolt; 67. and fixing the grooves.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Referring to fig. 1-5, the present invention provides a technical solution for lightning protection overhead line in power engineering: an electric power engineering lightning protection overhead line comprises an opening rod 1, a fixed structure 2 is installed on the outer side of the opening rod 1, a cross arm 3 is installed on the outer ring of the fixed structure 2, an insulator 4 is installed on the outer surface of the upper end of the cross arm 3, an overhead line 5 is installed at the top end of the insulator 4, a lightning protection structure 6 is installed on the outer ring of the overhead line 5, the fixed structure 2 comprises an upper lantern ring 21, a lower lantern ring 22 is arranged on the outer ring of the opening rod 1 close to the lower side of the upper lantern ring 21, a support rod 23 is installed at the joint of the lower lantern ring 22 and the upper lantern ring 21, moving holes 24 are formed in the outer rings of the upper lantern ring 21 and the lower lantern ring 22, a mounting bolt 25 is installed inside the moving hole 24, a fastening pad 26 is installed on the outer surface of one end of the mounting bolt 25, a groove 27 is formed in the outer surface of the opening rod 1, the lightning protection structure 6 comprises a lightning arrester 61, a connecting rod 62 is arranged at the upper end of the arrester 61, a sleeve 63 is arranged on the top end of the connecting rod 62, a sleeve 63 is arranged close to the outer ring of the overhead line 5, the lower extreme of arrester 61 is provided with connecting plate 64, and installation piece 65 is installed to the one end of connecting plate 64, and the outer surface mounting in the upper end of installation piece 65 has fixing bolt 66, and the outside of cross arm 3 is close to the one side of installation piece 65 and is seted up fixed slot 67.

Further, stretch out for sliding connection between pole 1 and fixed knot constructs 2, be fixed connection between cross arm 3 and the fixed knot constructs 2, and cross arm 3 is the rectangle structure, and insulator 4 quantity is four groups and is the symmetry and arranges, and overhead line 5 is the symmetry and arranges, through the setting of fixed knot constructs 2 for fixed knot constructs 2 reciprocates along stretching out 1 surface of pole, is convenient for fix the position of cross arm 3, also prevents the skew of cross arm 3 position simultaneously, plays better firm effect.

The diameters of the upper lantern ring 21 and the lower lantern ring 22 are equal, the diameters of the upper lantern ring 21 and the lower lantern ring 22 are both of annular structures, the number of the support rods 23 is four groups and the support rods are arranged in a rectangular shape, the number of the movable holes 24 is a cylindrical structure, the number of the movable holes 24 is a plurality of groups and the movable holes are arranged in an annular shape, the diameter of the mounting bolt 25 is smaller than that of the movable holes 24, the number of the mounting bolt 25 is equal to that of the movable holes 24, the diameter of the fastening pad 26 is equal to that of the tail end of the mounting bolt 25, the fastening pad 26 is made of plastic material, the number of the grooves 27 is four groups and the grooves are arranged in an annular shape, the cross-sectional area of each groove 27 is larger than that of the cross-sectional area of the fastening pad 26, so that the outer surface of the tension rod 1 is wrapped by the upper lantern ring 21 and the lower lantern ring 22, after aligning the mounting bolt 25 with the connecting hole and the groove 27, the mounting bolt 25 is rotated along the inner outer surface of the connecting hole until the fastening pad 26 is attached to the inner outer surface of the groove 27 until the fastening pad 26 is fastened.

The lightning arresters 61 are two groups and are symmetrically arranged, the lightning arresters 61 are metal oxide lightning arresters 61, the top ends of the connecting rods 62 are of arc structures, the connecting rods 62 and the sleeves 63 are fixedly connected, the sleeves 63 are of hollow cylindrical structures, the diameters of inner rings of the sleeves 63 are larger than the diameters of the overhead wires 5 and are attached to each other, the connecting plates 64 and the lightning arresters 61 are in conductive connection, the connecting plates 64 are of arc structures, the connecting plates 64 and the mounting blocks 65 are in welded connection, the mounting blocks 65 are two groups and are symmetrically arranged, the mounting blocks 65 are of rectangular structures, the fixing bolts 66 are four groups and are symmetrically arranged, the number of the fixing grooves 67 is equal to that of the fixing bolts 66, the fixing grooves 67 are matched with the fixing bolts 66, the sleeves 63 are sleeved on the outer surface of the overhead wires 5, the mounting blocks 65 and the fixing grooves 67 on one side of the connecting plates 64 are kept in a uniform horizontal plane, and the fixing bolts 66 and the fixing grooves 67 are fixedly installed, the lightning arrester 61 is connected to the cross arm 3 on the overhead wire 5, and the connecting plate 64 has an effect of grounding.

The working principle of the utility model is as follows: in the installation process of the overhead line 5, a user is close to the lower lantern ring 22 arranged on the lower side of the upper lantern ring 21 through the outer ring of the tension rod 1, the support rod 23 installed at the joint of the lower lantern ring 22 and the upper lantern ring 21, the moving hole 24 and the installation bolt 25 are arranged, the fastening pad 26 and the groove 27 are arranged, the upper lantern ring 21 is matched with the lower lantern ring 22, the upper lantern ring 21 and the lower lantern ring 22 are wrapped on the outer surface of the tension rod 1, the installation bolt 25 is aligned to the connecting hole and the groove 27, the installation bolt 25 rotates along the inner side outer surface of the connecting hole until the fastening pad 26 is attached to the inner side outer surface of the groove 27, after the fastening pad 26 is tightly connected, the rest installation bolts 25 are arranged, finally, the cross arm 3 is fixed, the stability of the cross arm is improved, and the rotation of the cross arm 3 is prevented.

In the overhead line 5 way installation, the connecting rod 62 that the user set up through the upper end of arrester 61, the sleeve 63, connecting plate 64, installation piece 65, fixing bolt 66 and fixed slot 67, cover sleeve 63 to overhead line 5 surface, keeping unified horizontal plane with installation piece 65 and fixed slot 67 of connecting plate 64 one side, install fixedly through fixing bolt 66 and fixed slot 67 with both, make arrester 61 be connected with cross arm 3 at overhead line 5, connecting plate 64 has the effect of ground connection, sleeve 63 and connecting rod 62 are the high-pressure end, thereby in the thunderbolt in-process, make thunder and lightning transmit to ground, thereby the overhead line 5 circuit is protected.

Claims

1. The lightning protection overhead line for the power engineering comprises an opening rod (1) and is characterized in that a fixing structure (2) is installed on the outer side of the opening rod (1), a cross arm (3) is installed on the outer ring of the fixing structure (2), an insulator (4) is installed on the outer surface of the upper end of the cross arm (3), an overhead line (5) is installed at the top end of the insulator (4), and a lightning protection structure (6) is installed on the outer ring of the overhead line (5);

the fixing structure (2) comprises an upper lantern ring (21), a lower lantern ring (22) is arranged on the outer ring of the stretching rod (1) close to the lower side of the upper lantern ring (21), a supporting rod (23) is installed at the joint of the lower lantern ring (22) and the upper lantern ring (21), moving holes (24) are formed in the outer rings of the upper lantern ring (21) and the lower lantern ring (22), a mounting bolt (25) is installed inside each moving hole (24), a fastening pad (26) is installed on the outer surface of one end of each mounting bolt (25), and a groove (27) is formed in the outer surface of the stretching rod (1);

lightning-arrest structure (6) are including arrester (61), the upper end of arrester (61) is provided with connecting rod (62), the outer lane that the top of connecting rod (62) is close to overhead line (5) is provided with sleeve (63), the lower extreme of arrester (61) is provided with connecting plate (64), installation piece (65) are installed to the one end of connecting plate (64), the upper end surface mounting of installation piece (65) has fixing bolt (66), fixed slot (67) have been seted up to one side that the outside of cross arm (3) is close to installation piece (65).

2. An electric power engineering lightning protection overhead line according to claim 1, characterized in that the tension bar (1) is connected with the fixed structure (2) in a sliding manner, the cross arm (3) is connected with the fixed structure (2) in a fixed manner, the cross arm (3) is of a rectangular structure, the insulators (4) are four groups and are symmetrically arranged, and the overhead lines (5) are symmetrically arranged.

3. An electric power engineering lightning protection overhead line according to claim 1, characterized in that the diameter of the upper collar (21) and the lower collar (22) are equal, both are ring-shaped structures, the number of the support rods (23) is four and arranged in a rectangle, the number of the moving holes (24) is a cylindrical structure, and the number of the moving holes (24) is several and arranged in a ring.

4. An electric power engineering lightning protection overhead line according to claim 1, characterized in that the diameter of the mounting bolt (25) is smaller than the diameter of the moving hole (24), the number of the mounting bolts (25) and the number of the moving holes (24) are equal, the diameter of the fastening pad (26) is equal to the diameter of the tail end of the mounting bolt (25), the fastening pad (26) is made of plastic, the number of the grooves (27) is four, the grooves are arranged in a ring shape, and the cross-sectional area of the grooves (27) is larger than that of the fastening pad (26).

5. An electric power engineering lightning protection overhead line according to claim 1, characterized in that the lightning arresters (61) are arranged in two groups and symmetrically, the lightning arresters (61) are metal oxide lightning arresters, the top end of the connecting rod (62) is in an arc-shaped structure, the connecting rod (62) is fixedly connected with the sleeve (63), the sleeve (63) is in a hollow cylindrical structure, and the diameter of the inner ring of the sleeve (63) is larger than that of the overhead line (5), and the two are attached to each other.

6. An electric power engineering lightning protection overhead line according to claim 1, characterized in that the connection plates (64) are in conductive connection with lightning arresters (61), the connection plates (64) are in arc-shaped structures, the connection plates (64) are in welded connection with mounting blocks (65), and the mounting blocks (65) are in two groups and are symmetrically arranged.

7. An electric power engineering lightning protection overhead line according to claim 1, characterized in that the mounting block (65) is a rectangular structure, the fixing bolts (66) are four groups and are symmetrically arranged, the number of the fixing slots (67) is equal to that of the fixing bolts (66), and the fixing slots (67) are matched with the fixing bolts (66).