CN219497456U

CN219497456U - Air gap lightning arrester

Info

Publication number: CN219497456U
Application number: CN202320211189.3U
Authority: CN
Inventors: 魏兴民; 马迪
Original assignee: Hongrui Energy Technology Dongying Co ltd
Current assignee: Hongrui Energy Technology Dongying Co ltd
Priority date: 2023-02-14
Filing date: 2023-02-14
Publication date: 2023-08-08
Anticipated expiration: 2033-02-14

Abstract

An air gap lightning arrester comprises a lightning arrester body, a mounting base and a preassembled block; the mounting base is fixedly arranged at the bottom of the lightning arrester body and can be quickly inserted and detached on the preassembled block; the installation base comprises a base I and a base II from top to bottom, the preassembled block comprises a block I and a block II from top to bottom, the base I is installed in the block I and can only linearly slide along the up-down direction of the block I, and a locking device for preventing the installation base from moving up and down is arranged between the base II and the block II. The air gap lightning arrester is provided with the installation base and the preassembling block, the preassembling block is fixedly installed on the power grid system such as a cross arm in advance, and the installation base and the preassembling block can be quickly inserted and detached, so that the operations of installation, replacement, disassembly and the like of the air gap lightning arrester become extremely simple and convenient, the labor intensity and the labor time are greatly reduced, and the danger coefficient of the high-altitude operation of staff is greatly reduced.

Description

Air gap lightning arrester

Technical Field

The utility model relates to the technical field of lightning arresters, in particular to an air gap lightning arrester.

Background

The gapless or external gap metal oxide arrester is widely used in various power grid systems in recent years due to good nonlinear volt-ampere characteristics, wherein the external gap arrester can effectively ensure that the arrester runs under long-term system voltage due to the existence of an air external gap, the body and a high-voltage line are in an isolated state when the arrester is not in operation, the live working time of the arrester body is reduced, when a distribution line encounters a lightning stroke, lightning voltage and current are released, the air gap insulation of the arrester is immediately recovered after the distribution line is protected, the follow-up power frequency current is cut off, the burn of the follow-up power frequency current to a wire and an insulator is avoided, the tripping of the protection action of an outlet of the distribution line is prevented, the service life is far longer than that of the gapless arrester, and the stability of the line running is increased.

In the prior art, most of air gap arresters are installed in a bolt connection mode, the steps of installation and disassembly are very complicated, so that the labor intensity and the labor time of constructors in high-altitude operation are relatively high and long, and meanwhile, the danger coefficient of the personnel high-altitude operation is increased.

Disclosure of Invention

In order to solve the problems, the utility model provides the air gap lightning arrester, which is provided with the installation base and the preassembled block, the preassembled block is fixedly installed on a power grid system such as a cross arm in advance, and the installation base and the preassembled block can be quickly inserted and detached, so that the operations of installation, replacement, disassembly and the like of the air gap lightning arrester are extremely simple and convenient, the labor intensity and the labor time are greatly reduced, and the danger coefficient of the high-altitude operation of staff is greatly reduced.

The technical scheme of the utility model is as follows:

an air gap lightning arrester comprises a lightning arrester body, a mounting base and a preassembled block; the mounting base is fixedly arranged at the bottom of the lightning arrester body and can be quickly inserted and detached on the preassembled block; the installation base comprises a base I and a base II from top to bottom, the preassembled block comprises a block I and a block II from top to bottom, the base I is installed in the block I and can only linearly slide along the up-down direction of the block I, and a locking device for preventing the installation base from moving up and down is arranged between the base II and the block II.

Further, the block I is fixedly connected with the block II through a bolt.

Further, the overall dimension of the seat II is smaller than that of the seat I.

Further, be provided with vertical groove on the side of seat I, vertical groove cooperates with the vertical guide boss that sets up on the piece I, is provided with the hole that is used for seat I to pass on the piece I, and vertical guide boss sets up on the pore wall.

Further, the vertical groove and the vertical guide boss are respectively arranged in the left and right directions.

Further, the vertical groove and the vertical guide boss are respectively arranged in the front, rear, left and right directions.

As mentioned above, the air gap lightning arrester, the locking device comprises a clamping block, a transverse groove is arranged on the side face of the seat II, one end of the clamping block is matched with the transverse groove, the clamping block can be inserted into the transverse groove, the clamping block can be installed on the block II in a linearly movable mode only in the horizontal direction, and an elastic force for inserting the clamping block into the transverse groove is arranged on the block II.

Further, inclined planes are arranged at the upper end and the lower end of one end of the clamping block matched with the transverse groove, and the transverse groove is arranged in a shape matched with the inclined planes.

Further, a rubber pad is fixed on the inclined plane.

Further, the other end fixedly connected with guide bar at the clamp block, the guide bar can horizontal rectilinear movement install on the block II, the other end fixedly connected with pull rod at the guide bar, the pull rod can horizontal rectilinear movement install on the block II, the tip of pull rod is provided with the handle, the handle is in the outside of block II, installs the spring between guide bar and block II.

The utility model has the beneficial effects that:

1. the air gap lightning arrester is provided with the mounting base and the preassembled block, the preassembled block is fixedly mounted on a power grid system such as a cross arm in advance, and the mounting base and the preassembled block can be quickly inserted and detached, so that the operations of mounting, replacing, dismounting and the like of the air gap lightning arrester are extremely simple and convenient.

2. The air gap lightning arrester disclosed by the utility model greatly reduces and shortens the labor intensity and the labor time.

3. The air gap lightning arrester disclosed by the utility model can greatly reduce the risk coefficient of working personnel working aloft.

Drawings

The aspects and advantages of the present application will become apparent to those of ordinary skill in the art upon reading the following detailed description of the preferred embodiments. The drawings are only for purposes of illustrating the preferred embodiments and are not to be construed as limiting the utility model.

In the drawings:

fig. 1 is a schematic structural view of an air gap lightning arrester according to an embodiment of the present utility model;

FIG. 2 is an enlarged view at P in FIG. 1;

FIG. 3 is a cross-sectional view A-A of FIG. 1;

FIG. 4 is a cross-sectional view B-B of FIG. 1;

the components represented by the reference numerals in the figures are:

the utility model comprises the following steps: 1. the lightning arrester comprises a lightning arrester body, 2, a mounting base, 21, a seat I, 211, a vertical groove, 22, a seat II, 221, a horizontal groove, 3, a preassembled block, 31, a block I, 311, a vertical guide boss, 32, a block II, 4, a clamping block, 41, an inclined plane, 5, a rubber pad, 6, a guide rod, 7, a spring, 8, a pull rod, 81 and a handle.

Detailed Description

As shown in fig. 1, fig. 1 is a schematic structural view of an air gap lightning arrester according to an embodiment of the present utility model, and as can be seen from the figure, the air gap lightning arrester includes an arrester body 1, a mounting base 2, and a pre-assembly block 3; the installation base 2 is fixedly arranged at the bottom of the lightning arrester body 1, in the embodiment, the lightning arrester body 1 and the installation base 2 can be regarded as a whole, the lightning arrester body 1 is quickly inserted and detached through the installation base 2, the main improvement of the embodiment is that the installation base 2 can be quickly inserted and detached to be installed on the preassembled block 3, the preassembled block 3 is fixedly arranged on a power grid system, and then the quick installation and replacement of the air gap lightning arrester are realized through the quick insertion and detachment between the installation base 2 and the preassembled block 3 when the lightning arrester is installed or replaced; specifically, the mounting base 2 is composed of a seat I21 and a seat II 22 from top to bottom, the preassembled block 3 is composed of a block I31 and a block II 32 from top to bottom, and as can be seen from the figure, the centers of the block I31 and the block II 32 are provided with holes for mounting the seat I21 and the seat II 22; the seat I21 is mounted in the block I31 so as to be capable of sliding linearly only in the up-down direction of the block I31, and a locking device for preventing the mounting base 2 from moving up and down is provided between the seat II 22 and the block II 32.

Referring to fig. 2, fig. 2 is an enlarged view of a position P in fig. 1, and it can be seen from the drawing that the block i 31 is fixedly connected with the block ii 32 through a bolt, and a bolt hole and a bolt are also provided at a lower portion of the block ii 32, where the bolt is fixedly connected with a power grid system such as a cross arm through a bolt, so that the pre-assembled blocks 3 are fixedly mounted on the cross arm.

Further, to facilitate passage of seat ii 22 through block i 31, the outer dimensions of seat ii 22 are smaller than the outer dimensions of seat i 21.

As shown in fig. 3, fig. 3 is a sectional view of A-A in fig. 1, it can be seen from the fig. that a vertical groove 211 is provided on a side edge of the seat i 21, the vertical groove 211 is matched with a vertical guiding boss 311 provided on the block i 31, the vertical groove 211 and the vertical guiding boss 311 are three straight-sided matching, and those skilled in the art can design the vertical groove 211 and the vertical guiding boss into other shapes as long as the two can realize straight guiding in a vertical direction; an inner hole for the seat I21 to pass through is formed in the block I31, and a vertical guide boss 311 is arranged on the inner hole wall; alternatively, the vertical groove 211 and the vertical guide boss 311 are provided one each in the left and right directions; alternatively, the vertical groove 211 and the vertical guide boss 311 are disposed one in each of the front, rear, left, and right directions.

Referring to fig. 2 and 4, it can be seen that the locking device comprises a clamping block 4, a transverse groove 221 is arranged on the side surface of a seat ii 22, one end of the clamping block 4 is matched with the transverse groove 221, the clamping block 4 can be inserted into the transverse groove 221, the clamping block 4 can be mounted on a block ii 32 in a straight line movable manner only in the horizontal direction, and an elastic force for inserting the clamping block 4 into the transverse groove 221 is arranged on the block ii 32; the longer the length of the clamping block 4 and the length of the transverse groove 221 should be, the longer the mating length of the clamping block 4 and the transverse groove 221 should be, and the higher the clamping stability should be.

Further, the locking device is respectively arranged at the left side and the right side; optionally, one is arranged in each of the four directions of front, rear, left and right.

Further, inclined surfaces 41 are provided at upper and lower end portions of one end of the clamping block 4 engaged with the transverse groove 221, and the transverse groove 221 is formed in a shape engaged with the inclined surfaces 41; to further enhance the grip between the gripping block 4 and the transverse groove 221, a rubber pad 5 is fixed to the inclined surface 41, the rubber pad 5 being compressible.

The other end fixedly connected with guide bar 6 at the clamp block 4, optionally, guide bar 6 and clamp block 4 welded connection, guide bar 6 can horizontal rectilinear movement ground install on the piece II 32, specifically, the appearance of guide bar 6 sets up square, be provided with on the corresponding piece II 32 with guide bar 6 complex hole also set up square hole, guide bar 6 can realize horizontal rectilinear sliding in square hole, the other end fixedly connected with pull rod 8 at guide bar 6, optionally, the tip of pull rod 8 is provided with the external screw thread, be provided with interior screw hole on guide bar 6, pull rod 8 and guide bar 6 screw thread fit fixed connection together, pull rod 8 can horizontal rectilinear movement install on the piece II 32, the tip of pull rod 8 is provided with handle 81, handle 81 is at the outside of piece II 32, install spring 7 between guide bar 6 and piece II 32, spring 7 gives guide bar 6 inboard elastic force.

The utility model provides a specific use steps of an air gap lightning arrester, which comprises the following steps: firstly, a block II 32 is fixed on a power grid system such as a cross arm in a bolt and other modes, a clamping block 4, a guide rod 6, a spring 7 and a pull rod 8 are installed on the block II 32, then a block I31 is fixed on the block II 32, when the lightning arrester body 1 is to be installed, the clamping block 4 is pulled outwards through a handle 81, then the installation base 2 is placed into the preassembled block 3, a seat I21 is downwards along the block I31, after the lightning arrester body is completely detached, the handle 81 is loosened, the clamping block 41 is inserted into a transverse groove 221, a seat II 22 is clamped, and when the lightning arrester body 1 is required to be detached, the clamping block 4 is pulled outwards through the handle 81, and then the lightning arrester body 1 is integrally pulled upwards.

The air gap lightning arrester is provided with the installation base and the preassembling block, the preassembling block is fixedly installed on the power grid system such as a cross arm in advance, and the installation base and the preassembling block can be quickly inserted and detached, so that the operations of installation, replacement, disassembly and the like of the air gap lightning arrester become extremely simple and convenient, the labor intensity and the labor time are greatly reduced, and the danger coefficient of the high-altitude operation of staff is greatly reduced.

Claims

1. An air gap lightning arrester is characterized by comprising a lightning arrester body (1), a mounting base (2) and a preassembled block (3); the mounting base (2) is fixedly arranged at the bottom of the lightning arrester body (1), and the mounting base (2) can be quickly inserted and detachably mounted on the preassembled block (3); the installation base (2) is composed of a base I (21) and a base II (22) from top to bottom, the preassembled block (3) is composed of a block I (31) and a block II (32) from top to bottom, the base I (21) is installed in the block I (31) and can only linearly slide along the up-down direction of the block I (31), and a locking device for preventing the installation base (2) from moving up and down is arranged between the base II (22) and the block II (32).

2. An air gap lightning arrester according to claim 1, characterized in that the block i (31) is fixedly connected to the block ii (32) by means of bolts.

3. An air gap lightning arrester according to claim 1, characterised in that the outer dimensions of the seat ii (22) are smaller than the outer dimensions of the seat i (21).

4. An air gap arrester according to claim 1, characterized in that on the side of the seat i (21) there is provided a vertical slot (211), said vertical slot (211) cooperating with a vertical guiding boss (311) provided on the block i (31), on the block i (31) there is provided an inner hole for the passage of the seat i (21), the vertical guiding boss (311) being provided on the inner hole wall.

5. An air gap lightning arrester according to claim 4, characterized in that the vertical groove (211) and the vertical guide boss (311) are arranged one each in the left and right direction.

6. An air gap lightning arrester according to claim 4, characterized in that the vertical slot (211) and the vertical guide boss (311) are arranged one each in the front, rear, left and right directions.

7. An air gap lightning arrester according to claim 1, characterized in that the locking means comprises a clamping block (4), a transverse groove (221) is arranged on the side of the seat ii (22), one end of the clamping block (4) is matched with the transverse groove (221), the clamping block (4) can be inserted into the transverse groove (221), the clamping block (4) can be mounted on the block ii (32) in a linearly movable manner in the horizontal direction, and an elastic force for inserting the clamping block (4) into the transverse groove (221) is arranged on the block ii (32).

8. An air gap lightning arrester according to claim 7, characterized in that the upper and lower ends of the end of the clamping block (4) that cooperates with the transverse groove (221) are provided with inclined surfaces (41), the transverse groove (221) being provided in a shape that cooperates with the inclined surfaces (41).

9. An air gap lightning arrester according to claim 8, characterized in that a rubber pad (5) is fixed on the inclined surface (41).

10. An air gap lightning arrester according to claim 7, characterized in that a guiding rod (6) is fixedly connected to the other end of the clamping block (4), the guiding rod (6) is horizontally and linearly movably mounted on the block ii (32), a pulling rod (8) is fixedly connected to the other end of the guiding rod (6), the pulling rod (8) is horizontally and linearly movably mounted on the block ii (32), a handle (81) is arranged at the end of the pulling rod (8), the handle (81) is arranged outside the block ii (32), and a spring (7) is mounted between the guiding rod (6) and the block ii (32).