CN209875042U - Lightning conductor drainage crawling ladder suitable for weather-resistant steel pipe tower - Google Patents

Abstract

The utility model relates to a lightning conductor drainage cat ladder suitable for resistant time steel-pipe tower compares with prior art and has solved the cat ladder design of resistant time steel-pipe tower and causes the inconvenient defect of drainage wire installation. The utility model discloses an install the drainage cat ladder on the circular steel tube, the drainage cat ladder include the climbing rod, the climbing rod is hollow structure, installs a plurality of foot nail on the climbing rod, the welding has a plurality of connecting block on the circular steel tube, the climbing rod passes through cat ladder anchor clamps and installs on the connecting block, the material of climbing rod is combined material, and the drainage line is worn in the climbing rod, and the one end of drainage line connects on the lightning conductor, and the other end of drainage line connects on the grounding body. The utility model discloses utilize the cat ladder to provide the space that sets up for the drainage wire from between lightning conductor to the grounding body for the special design of cavity combined material for in the drainage wire melts into the cat ladder, cancelled the arrangement of drainage wire outside the tower body, avoided the influence of downlead to cat ladder operation personnel.

Description

Lightning conductor drainage crawling ladder suitable for weather-resistant steel pipe tower

Technical Field

The utility model relates to a resistant time steel pipe tower technical field is a lightning wire drainage cat ladder suitable for resistant time steel pipe tower particularly.

Background

In the prior art, the section of the tower body of the weather-resistant steel pipe tower is mostly quadrangular, the tower body is large, two crawling ladders are usually arranged on the diagonal line of the same tower body for maintenance, and even the weather-resistant steel pipe tower with the highest voltage level (larger volume) is also provided with four crawling ladders.

Due to the characteristic of the weather-resistant steel material, the tower body impedance of the weather-resistant steel pipe tower is obviously higher than that of the traditional galvanized steel tower, when a lightning conductor or the tower is struck by lightning and an effective lightning channel is not formed, under the condition of the same ground resistance, the tower top potential formed by lightning current on the weather-resistant steel tower is obviously higher than that of the galvanized steel tower, so that the probability of lightning counterattack flashover of an insulator on the weather-resistant steel tower is obviously increased, and the risk of lightning faults is larger. Therefore, the lightning conductor aiming at the weathering steel material can not utilize the traditional galvanized steel pole tower as a conductive medium to conduct drainage to the grounding body, and then the design of the drainage wire needs to be matched.

The needle is to waiting to wait the steel pipe tower, and it stands upright through four circular steel tubes and supports and form, must carry out artifical the maintenance through the cat ladder of additional installation in practical application, and the setting of cat ladder is when making things convenient for maintainer, and the lead wire for the overhead ground wire then has brought inconveniently.

Therefore, how to design a ladder stand structure which can facilitate the installation of the drainage wire is an urgent technical problem to be solved.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a lightning conductor drainage cat ladder suitable for resistant time steel pipe tower solves above-mentioned problem in order to solve the inconvenient defect of drainage line installation caused by the cat ladder design of resistant time steel pipe tower among the prior art.

In order to achieve the above purpose, the technical solution of the present invention is as follows:

a lightning conductor drainage ladder suitable for a weather-proof steel pipe tower comprises a weather-proof steel pipe tower body, wherein the weather-proof steel pipe tower body comprises four round steel pipes standing on the ground,

still including installing the drainage cat ladder on the circular steel tube, the drainage cat ladder include the climbing rod, the climbing rod is hollow structure, installs a plurality of foot nail on the climbing rod, the welding has a plurality of connecting block on the circular steel tube, the climbing rod passes through cat ladder anchor clamps and installs on the connecting block, the material of climbing rod is combined material, and the drainage line is worn in the climbing rod, and the one end of drainage line is on the lightning conductor, and the other end of drainage line connects on the grounding body.

The crawling ladder anchor clamps include splint and clamp splice, splint pass through the bolt mounting on the connecting block, the clamp splice will climb the pole clamp and the clamp splice passes through the bolt mounting on splint.

Two drainage wires that meet from top to bottom in the pole-climbing pass through parallel groove clamp erection joint, parallel groove clamp's material is galvanized steel.

The clamping plates, the clamping blocks and the bolts are all made of weather-resistant steel.

Advantageous effects

The utility model discloses a lightning conductor drainage cat ladder suitable for resistant time steel-pipe tower, compare with prior art and utilize the cat ladder to provide the setting space for the drainage wire from between lightning conductor to the grounding body for the drainage wire has merged into in the cat ladder, has cancelled the arrangement of drainage wire outside the tower body, has avoided the influence of downlead (drainage wire) to cat ladder operation personnel. Has the characteristics of simple structure and low cost.

Drawings

Fig. 1 is a schematic structural view of the present invention;

fig. 2 is a schematic structural view of a cross arm of a lightning conductor and a cross arm of an upper conductor in the present invention;

fig. 3 is a schematic structural view of the middle drainage crawling ladder of the utility model;

FIG. 4 is a top view of the mounting structure of the middle drainage crawling ladder of the utility model;

FIG. 5 is a schematic view of the connection structure between the drainage wires in the present invention;

FIG. 6 is a schematic view of the mounting structure of the drain wire and the grounding body;

the weather-resistant steel pipe tower comprises a weather-resistant steel pipe tower body 1, a round steel pipe 2, a drainage ladder stand 3, a connection block 4, a ladder stand clamp 5, a drainage wire 6, a lightning conductor 7, a grounding body 8, a climbing rod 11, a foot nail 12, a clamping plate 13, a clamping block 14, a bolt 15, a parallel groove clamp 16, a flat iron 21, a tower foot firm hardware fitting 22, a grounding terminal 23 and a grounding lead 24.

Detailed Description

In order to further understand and appreciate the structural features and advantages of the present invention, preferred embodiments and the accompanying drawings are described in detail as follows:

as shown in figure 1, a lightning conductor drainage cat ladder suitable for resistant time steel-tube tower, including resistant time steel-tube tower body 1, resistant time steel-tube tower body 1 is including standing four circular steel tubes 2 subaerial, according to resistant time steel-tube tower body 1 voltage level and cross sectional area's needs, drainage cat ladder 3's quantity can be for 2 or 4, drainage cat ladder 3 installs on circular steel tube 2, when setting up 4 drainage cat ladders 3 promptly, equally divide on four circular steel tubes 2 and do not install drainage cat ladder 3.

As shown in fig. 2 and 3, the drainage ladder stand 3 comprises a climbing rod 11, the climbing rod 11 is of a hollow structure, and a plurality of foot nails 12 are installed on the climbing rod 11 according to a traditional mode. As shown in fig. 4, a plurality of connecting blocks are welded on the circular steel tube 2, 4 connecting blocks 4 are used for installing the climbing rod 11, and the climbing rod 11 is installed on the connecting blocks 4 through the ladder stand fixture 5. The ladder climbing clamp 5 comprises a clamping plate 13 and a clamping block 14, wherein the clamping plate 13 is installed on the connecting block 4 through a bolt 15, the clamping block 14 clamps the climbing rod 11 on the clamping plate 13, and the clamping block 14 is installed on the clamping plate 13 through the bolt 15, so that the installation and the fixation of the climbing rod 11 on the ladder climbing clamp 5 are realized.

Based on galvanic corrosion effect, the drainage wire should avoid the direct contact with resistant weathering steel as far as possible, therefore, in order to make the cat ladder can provide the space for the drainage wire, the material of pole 11 here is combined material, and in the same way, the material of splint 13, clamp splice 14 and bolt 15 can be resistant weathering steel. The drainage wire 6 is worn in climbing the pole 11, and the one end of drainage wire 6 connects on the lightning conductor 7, and the other end of drainage wire 6 connects on the grounding body 8, climbs the pole 11 promptly and provides the downlead design from the lightning conductor 7 to the grounding body 8 for the drainage wire 6.

Here, the installation of the current lead 6 on the lightning conductor 7 may use a conventional current lead clip, and the installation of the current lead 6 on the grounding body 8 may use a tower foot grounding assembly to connect with the grounding body 8. As shown in fig. 6, the tower foot grounding assembly includes a flat iron 21, and the flat iron 21 is mounted on the tower foot (the circular steel tube 2) of the weather-resistant steel tube tower 1 through a tower foot-fastening fitting 22. The tower foot firm fitting 22 can be a traditional fixed fitting, the drainage wire 6 is connected to one end of the flat iron 21 through the grounding terminal 23, and the other end of the flat iron 21 is connected with the grounding body 8 through the grounding lead 24.

As shown in figure 5, because the round steel tube 2 is longer, the climbing rod 11 installed based on the round steel tube can be a combined integral structure, two drainage wires 6 which are vertically connected in the same climbing rod 11 are installed and connected through a parallel groove clamp 16, and the parallel groove clamp 16 is made of galvanized steel and plays a role in conducting the two drainage wires 6.

When in actual use, when installing the cat ladder additional to resistant time steel pipe tower, pass drainage wire 6 in climbing rod 11, install climbing rod 11 on resistant time steel pipe tower body 1's connecting block 4 through cat ladder anchor clamps 5 again for when setting up the drainage wire, also do not influence cat ladder operation personnel's daily work, guaranteed circuit safety and convenient operation.

The foregoing shows and describes the general principles, essential features, and advantages of the invention. It will be understood by those skilled in the art that the present invention is not limited to the above embodiments, and that the principles of the present invention may be applied to any other embodiment without departing from the spirit and scope of the present invention. The scope of the invention is defined by the appended claims and equivalents thereof.

Claims (4)

1. The utility model provides a lightning conductor drainage cat ladder suitable for resistant time steel-tube tower, includes resistant time steel-tube tower body (1), resistant time steel-tube tower body (1) including standing four circular steel tubes (2) subaerial, its characterized in that:

still including installing drainage cat ladder (3) on circular steel tube (2), drainage cat ladder (3) including climbing pole (11), climbing pole (11) are hollow structure, install a plurality of foot nail (12) on climbing pole (11), the welding has a plurality of connecting block (4) on circular steel tube (2), climbing pole (11) are installed on connecting block (4) through cat ladder anchor clamps (5), the material of climbing pole (11) is combined material, and drainage line (6) are worn in climbing pole (11), and the one end of drainage line (6) is on lightning-arrest line (7), and the other end of drainage line (6) connects on grounding body (8).

2. The lightning conductor drainage ladder stand applicable to the weather-resistant steel pipe tower as claimed in claim 1, is characterized in that: the ladder climbing clamp (5) comprises a clamping plate (13) and a clamping block (14), wherein the clamping plate (13) is installed on the connecting block (4) through a bolt (15), the clamping block (14) clamps the climbing rod (11) on the clamping plate (13), and the clamping block (14) is installed on the clamping plate (13) through the bolt (15).

3. The lightning conductor drainage ladder stand applicable to the weather-resistant steel pipe tower as claimed in claim 1, is characterized in that: two drainage wires (6) that meet from top to bottom in climbing pole (11) pass through parallel groove clamp (16) erection joint, the material of parallel groove clamp (16) is galvanized steel.

4. The lightning conductor drainage ladder stand applicable to the weather-resistant steel pipe tower as claimed in claim 2, is characterized in that: the clamping plates (13), the clamping blocks (14) and the bolts (15) are all made of weather-resistant steel.