CN219801276U - Waterproof lightning protection ground net of conductive concrete - Google Patents

Abstract

The utility model discloses a waterproof lightning-proof grounding grid of conductive concrete, which comprises a cloth body, wherein the upper surface of the cloth body is provided with a plurality of longitudinal warp yarns which are arranged longitudinally, the upper surface of the cloth body is provided with a plurality of transverse weft yarns, the superposition of the warp yarns and the weft yarns is provided with the upper end connected with a connecting buckle, the lower end of the connecting buckle is connected with the cloth body, the upper surface of the cloth body is provided with a plurality of fixing buckles, an inserting rod is movably connected in each fixing buckle, each fixing buckle is connected with the upper surface of the warp yarns, lightning current enters the warp yarns and the weft yarns through conductive concrete, flows to the fixing buckles through the warp yarns and the weft yarns, enters the fixing blocks through the fixing buckles, enters a rod body through the fixing blocks, and completes the conduction when the lightning strikes through the rod body, thereby avoiding the unstable performance of the grounding grid in the original area.

Description

A conductive concrete waterproof and lightning-proof grounding grid

Technical field

The utility model relates to a conductive concrete waterproof and lightning-proof grounding grid.

Background technique

Grounding grid is a general term for a grounding body composed of multiple metal grounding electrodes buried at a certain depth underground and connected to each other by conductors to form a mesh structure. It is widely used in many industries such as electric power, construction, computers, industrial and mining enterprises, communications, etc., and plays a role in safety protection and shielding. Grounding grids can be large or small, some are very complex and huge, and some only consist of one grounding electrode. They are generally designed according to needs.

With the development of society, electrified railways have gradually extended their layout to mountainous and plateau areas. Among them, the terrain of mountainous railways is complex, often accompanied by geological conditions of criss-crossing ravines, high mountains and deep valleys. The ratio of lines to bridges and tunnels is high, making it difficult to locate the traction substation (hereinafter also referred to as "substation"). Setting up traction substations in mountainous areas often requires a much smaller field area than in plain areas, which also limits the area of the substation's grounding grid. The smaller the grounding grid area, the greater the grounding resistance, thus affecting the equipment. and personal safety.

At the same time, mountainous areas are usually dotted with valleys and rivers, and traction substations installed in these areas are threatened by floods. The water level rises during the rainy season, and the water level in the canyon can rise several meters higher than during the dry season. In order to ensure site site safety, according to the design specifications, the site site elevation of the traction substation must be above the 100-year flood level, and the site site elevation of the subdivision substation and AT site must be above the 50-year flood level, resulting in sites in mountainous areas. The ground must be filled with high fill. The century-old flood level of some projects is more than ten meters or even tens of meters higher than the original ground level. The traction substation requires a large amount of fill work. The fill material is mostly gravel, and the soil resistivity is relatively high, basically above 1000Ω·m, which is very detrimental to the grounding system.

At the same time, due to the cold winter in plateau areas, there is seasonal or permanent frozen soil, and the soil resistivity changes greatly in different seasons, which brings greater uncertainty and instability to the performance of the grounding grid buried in it.

Utility model content

The purpose of this utility model is to provide a conductive concrete waterproof and lightning-proof grounding grid, which can reduce the performance instability of the grounding grid in plateau areas.

The technical solution to achieve the above object is: a conductive concrete waterproof and lightning-proof grounding grid, including a cloth body, the upper surface of which is provided with a plurality of longitudinally arranged meridional lines, and the upper surface of which is provided with There are a plurality of transversely arranged weft lines. The overlap of the warp and weft lines is connected to the upper end of a connecting buckle. The lower end of the connecting buckle is connected to the cloth body. The upper surface of the cloth body is provided with a plurality of Fixed buckles, the fixed buckles are movablely connected with insertion rods, and each fixed buckle is connected to the upper surface of the meridional line.

Preferably: a through hole is provided at the center of the upper surface of the fixing buckle, the through hole penetrates the upper surface of the cloth body, and a plurality of fixing grooves are distributed in a circumferential array on the upper surface of the fixing buckle.

Preferably: the insertion rod includes a rod body, a truncated cone, a tapered rod and a fixed block, the upper surface of the rod body is connected to the truncated cone, the lower surface of the rod body is connected to the tapered rod, and the lower surface of the truncated cone is provided with a There are a plurality of fixed blocks, each of which corresponds to its respective fixed slot, and the rod body is movably connected in the through hole.

Preferably: the fixing buckle and the fixing block are made of metal with good electrification properties.

Preferably: the warp and weft threads are made of glass fiber, and conductive wires are provided inside the warp and weft threads.

Preferably: the cloth body is made of non-woven fabric.

Technical effects of this utility model:

The lightning current enters the meridional and latitudinal lines through the conductive concrete, flows to the fixed buckle through the meridional and latitudinal lines, enters the fixed block through the fixed buckle, enters the rod body through the fixed block, and enters the ground through the rod body. Conduct electricity during lightning strikes, thereby avoiding instability in the performance of the grounding grid in the original area;

The cloth body and the warp and weft lines are sutured and connected through connecting buckles, and then the cloth body is laid on the foundation where the mountain railway needs to erect the railway, and then inserting rods are inserted into multiple fixed buckles. The inserting rods can The fixed cloth body can conduct electricity to the road surface, and multiple warp and weft lines can also increase the stability of the road surface.

Description of the drawings

Figure 1 is an overall view of the utility model;

Figure 2 is an enlarged view of point A in Figure 1;

Figure 3 is an exploded view of the entire utility model;

Figure 4 is an enlarged view of B in Figure 3.

In the picture: 1. Cloth body; 2. Warp line; 3. Weft line; 4. Connecting buckle; 5. Fixing buckle; 501, through hole; 502, fixing groove; 6. Insertion rod; 601, rod body; 602 , round cone; 603, tapered rod; 604, fixed block.

Detailed ways

The technical solution of the present invention will be clearly and completely described below with reference to the accompanying drawings. In the description of the present utility model, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner" and "outer" The indicated orientations or positional relationships are based on the orientations or positional relationships shown in the drawings. They are only for the convenience of describing the present invention and simplifying the description. They are not intended to indicate or imply that the device or element referred to must have a specific orientation or a specific orientation. The orientation structure and operation of the invention cannot be construed as limitations of the present invention. Furthermore, the terms “first”, “second” and “third” are used for descriptive purposes only and are not to be understood as indicating or implying relative importance.

The utility model will be further described below in conjunction with the accompanying drawings.

Please refer to Figures 1-4. A conductive concrete waterproof and lightning-proof grounding net of the present utility model includes a cloth body 1. The upper surface of the cloth body 1 is provided with a plurality of longitudinally arranged meridional lines 2. The upper surface of the cloth body 1 is The surface is provided with a plurality of transversely arranged latitudinal lines 3. The overlap of the meridian lines 2 and the latitudinal lines 3 is connected to the upper end of the connecting buckle 4, and the lower end of the connecting buckle 4 is connected to the cloth body 1. The upper surface of the cloth body 1 is provided with There are multiple fixing buckles 5. The fixing buckles 5 are movably connected with the insertion rods 6. Each fixing buckle 5 is connected to the upper surface of the meridional line 2. A through hole 501 is provided at the center of the upper surface of the fixing buckle 5, and the through hole 501 passes through it. A plurality of fixing grooves 502 are distributed in a circumferential array on the upper surface of the cloth body 1 and the fixing buckle 5 .

The insertion rod 6 includes a rod body 601, a circular cone 602, a tapered rod 603 and a fixed block 604. The upper surface of the rod body 601 is connected to the circular cone 602, the lower surface of the rod body 601 is connected to the tapered rod 603, and the lower surface of the circular cone 602 is provided with a plurality of fixed blocks. 604. Each fixing block 604 corresponds to its own fixing groove 502. The rod body 601 is movably connected in the through hole 501. The rod body 601 is made of steel and has a graphite coating on the outside. The graphite coating prevents surface oxidation of the rod body 601 from causing The electrical conductivity is reduced, thereby reducing the lightning protection effect.

Of course, both the fixing buckle 5 and the fixing block 604 are made of metal with good electrical conductivity, so that the fixing buckle 5 has good conductivity. The material of the warp thread 2 and the weft thread 3 is made of glass fiber, and the warp thread 2 and the weft thread 3 are made of glass fiber. There are conductive wires in the weft thread 3, the cloth body 1 is made of non-woven fabric, and the connecting buckle 4 can be made of conductive thread, so that the cloth body 1 and the warp thread 2 and the weft thread 3 are sewn and connected through the conductive thread. , and at the same time, in order to ensure the stable connection between the warp thread 2, the weft thread 3 and the cloth body 1, the entire warp thread 2 and the weft thread 3 can be connected.

working principle:

First, the cloth body 1, the warp thread 2, and the weft thread 3 are sutured and connected through the connecting buckles 4, and then the cloth body 1 is laid on the foundation where the mountain railway needs to erect the track, and then inserted into multiple fixed buckles 5 The insertion rod 6 can not only fix the cloth body 1 but also conduct electricity to the road surface of the cloth body 1. The multiple meridional lines 2 and latitudinal lines 3 can also increase the stability of the road surface;

After completing the connection between the cloth body 1 and the insertion rod 6, conductive concrete can be laid on top of the cloth body 1. The conductive concrete can be prepared by adding a variety of components to ordinary Portland cement to prepare a highly conductive composite functional material. A conductive concrete ratio suitable for grounding of catenary pillar foundations in high resistivity environments will be obtained;

When a lightning strike falls, the current of the lightning strike enters the warp line 2 and the latitude line 3 through the conductive concrete, flows to the fixed buckle 5 through the warp line 2 and the latitudinal line 3, and enters the fixed block 604 through the fixed buckle 5. The fixed block 604 enters the rod body 601 and then enters the ground through the rod body 601 to complete the conduction during lightning strikes.

The above embodiments are only used to illustrate the technical solution of the present invention, but not to limit it; although the present utility model has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that they can still make the foregoing The technical solutions described in each embodiment may be modified, or some or all of the technical features may be equivalently replaced; and these modifications or substitutions shall not cause the essence of the corresponding technical solutions to depart from the scope of the technical solutions of each embodiment of the present invention.

Claims (6)

1. A conductive concrete waterproof and lightning-proof grounding grid, characterized in that it includes a cloth body (1), the upper surface of which is provided with a plurality of longitudinally arranged meridional lines (2), the The upper surface of the cloth body (1) is provided with a plurality of transversely arranged latitudinal lines (3), and the upper end of the connecting buckle (4) is connected to the overlap of the meridian lines (2) and the latitudinal lines (3). The lower end of the connecting buckle (4) is connected to the cloth body (1). A plurality of fixing buckles (5) are provided on the upper surface of the cloth body (1). The fixing buckles (5) are movablely connected with insertion rods (5). 6), each fixed buckle (5) is connected to the upper surface of the meridional line (2). 2. A conductive concrete waterproof and lightning-proof grounding grid according to claim 1, characterized in that: a through hole (501) is provided at the center of the upper surface of the fixing buckle (5), and the through hole (501 ) penetrates the upper surface of the cloth body (1), and a plurality of fixing grooves (502) are distributed in a circumferential array on the upper surface of the fixing buckle (5). 3. A conductive concrete waterproof and lightning-proof grounding net according to claim 2, characterized in that: the insertion rod (6) includes a rod body (601), a truncated cone (602), a tapered rod (603) and a fixed Block (604), the upper surface of the rod body (601) is connected to the truncated cone (602), the lower surface of the rod body (601) is connected to the tapered rod (603), and the lower surface of the truncated cone (602) There are a plurality of fixed blocks (604), each fixed block (604) corresponding to its respective fixed slot (502), and the rod (601) is movably connected to the through hole (501) Inside. 4. A conductive concrete waterproof and lightning-proof grounding grid according to claim 3, characterized in that: the fixing buckle (5) and the fixing block (604) are made of metal with good electrification. 5. A conductive concrete waterproof and lightning-proof grounding net according to claim 1, characterized in that: the material of the meridional lines (2) and the weft lines (3) is glass fiber, and the meridional lines (3) are made of glass fiber. Conductive wires are provided inside the thread (2) and the latitudinal thread (3). 6. A conductive concrete waterproof and lightning-proof grounding net according to claim 1, characterized in that: the cloth body (1) is made of non-woven fabric.