CN105206951A - Electrode connecting plate - Google Patents

Abstract

The invention provides an electrode connecting plate, comprising a bottom plate (3), a guide rod (5) and a guide plate (6), the bottom plate (3), the guide rod (5) and the guide plate (6) are all made of solid conductive materials, The bottom plate (3) is electrically connected to the guide plate (6) through the guide rod (5), and the electrode connection plate also includes a pressure plate (2), and the pressure plate (2) can clamp and fix the electrode on the pressure plate (2) and the bottom plate (3) between. One end of the electrode connection plate is connected to the ground terminal of the pole tower or grounding equipment, and the other end is connected to the graphite ground electrode. The electrode connection plate is partially or completely buried underground. In order to meet different requirements of burial depth, welding is used to connect it to the parts at both ends. The electrode connection plate is made of metal material with good electrical conductivity to ensure the overall rigidity, strength and conductivity of the connection plate.

Description

An electrode connecting plate

technical field

The invention relates to an electrode connecting plate for connecting two electrodes.

Background technique

The lightning protection of overhead line towers is crucial to the safe and stable operation of the circuit system. Tower grounding is an important measure for lightning protection of towers. Reducing the grounding resistance of towers can improve the lightning resistance level of lines and reduce the lightning tripping rate of lines. Most of the existing tower grounding devices use independent small square metal rings on each tower leg, plus ordinary round steel strips as grounding bodies. Under normal circumstances, this design requires a long grounding body, a long trench excavation length, and a large amount of engineering; in areas with high soil resistivity or limited by terrain, it is often difficult to meet the requirements of reducing grounding resistance , the effect is poor. In engineering applications, the soft graphite ground electrode has the characteristics of excellent electrical conductivity, stable material properties, convenient transportation, simple installation and operation, and flexibility, and does not require welding during construction, which reduces the labor intensity and construction workload of workers, and reduces construction cost.

At present, the connection between the soft graphite ground electrodes and the connection between the ground electrode and the tower adopts a simple lap joint method, that is, the connection part is wound and fixed by a metal wire, but the stability of this connection method is poor and the connection is not stable. , easily damaged by external factors, or cause the grounding resistance to multiply, or lead to open circuit, which seriously affects the safety of power grid operation.

Contents of the invention

In order to solve the problem of potential safety hazards caused by the simple overlapping of the existing electrodes. The invention provides an electrode connection plate, one end of the electrode connection plate is connected to the grounding end of a pole tower or grounding equipment, and the other end is connected to a graphite grounding electrode. When in use, the electrode connection plate is partially or completely buried in the ground, and the electrode connection plate Contains a long guide rod. In order to meet different requirements of burial depth, it is connected with the parts at both ends by welding. The electrode connection plate is made of metal material with good electrical conductivity to ensure the overall rigidity, strength and conductivity of the connection plate.

The technical solution adopted by the present invention to solve the technical problem is: an electrode connection plate, including a base plate, a guide rod and a guide plate, the base plate, the guide rod and the guide plate are all made of solid conductive materials, the base plate is electrically connected to the guide plate through the guide rod, Positioning holes are provided in the guide plate, and the electrode connecting plate also includes a pressing plate, which can clamp and fix the electrode between the pressing plate and the bottom plate.

Both sides of the pressing plate are connected and fixed with the bottom plate by bolts and nuts.

The middle part of the pressure plate is provided with arc-shaped grooves matching the electrodes.

The pressure plate is a split structure, and the pressure plate contains a plurality of strip plates, the two ends of each strip plate are connected and fixed with the bottom plate by bolts and nuts, and the middle part of each strip plate is provided with an arc matching the electrode. shaped groove.

The surface of the bottom plate facing the pressing plate is provided with arc-shaped grooves matching the electrodes.

The base plate is rectangular, the center line of the guide rod is parallel to one side of the base plate, and one end of the guide rod is welded to the lower surface of the base plate.

The guide plate is rectangular, the center line of the guide rod is parallel to a long side of the guide plate, the center line of the guide rod deviates from the center of gravity of the guide plate, and the other end of the guide rod is welded to the lower surface of the guide plate.

The lower surface of the bottom plate and the lower surface of the guide plate are located in the same plane.

Two positioning holes are arranged in the guide plate, and the two positioning holes are both located on the side adjacent to the other long side of the guide plate.

The part of the electrode located between the pressing plate and the bottom plate is cylindrical, and along the axial direction of the cylinder, the length of the pressing plate is 5 to 7 times the diameter of the cylinder, and the length of the bottom plate is 5 to 7 times the diameter of the cylinder. times.

The beneficial effects of the present invention are:

The electrode connection plate is simple to manufacture and low in cost. The main body of the electrode connection plate is welded by metal materials, and each component has a simple structure and is easy to manufacture or purchase;

The electrode connection plate reduces the construction workload and can meet the requirements of different buried depths. The length of the guide rod of the electrode connecting plate can be selected according to actual needs. After welding and assembly, it is brought to the construction site. The construction personnel only need to adjust the tightness of the fasteners to complete the connection between the ground electrode and the tower or other equipment;

The electrode connection plate improves the strength of the connection between the graphite ground electrode and the pole tower or other grounding equipment. The strength of the electrode connection plate after metal welding has been improved, and the resistance to external destructive factors has also been improved accordingly.

Description of drawings

The electrode connecting plate of the present invention will be further described in detail below in conjunction with the accompanying drawings.

FIG. 1 is a top view of the electrode connecting plate.

Fig. 2 is a front view of the electrode connecting plate.

Fig. 3 is a left side view of the electrode connecting plate.

Fig. 4 is a top view of another embodiment of the electrode connecting plate.

Fig. 5 is a front view of another embodiment of the electrode connecting plate.

Among them 1. Soft graphite ground electrode, 2. Press plate, 3. Bottom plate, 4. Bolt, 5. Guide rod, 6. Guide plate, 7. Positioning hole, 8. Nut.

Detailed ways

It should be noted that, in the case of no conflict, the embodiments in the present application and the features in the embodiments can be combined with each other. The present invention will be described in detail below with reference to the accompanying drawings and examples.

An electrode connection plate, including a base plate 3, a guide rod 5 and a guide plate 6, the base plate 3, the guide rod 5 and the guide plate 6 are all made of solid conductive materials, the base plate 3 is electrically connected to the guide plate 6 through the guide rod 5, and the electrodes are connected The plate also includes a pressing plate 2, which can clamp and fix the electrode (such as the soft graphite ground electrode 1) between the pressing plate 2 and the bottom plate 3, as shown in Fig. 1 , Fig. 2 and Fig. 3 .

In this embodiment, the connection between the pressing plate 2 and the base plate 3 is detachable. For example, both sides of the pressing plate 2 are connected and fixed to the base plate 3 by bolts 4 and nuts 8. The pressing plate 2 can be either a split structure or an integrated structure. When the pressure plate 2 is in a split structure, the pressure plate 2 contains three strip plates, and the two ends of each strip plate are connected and fixed to the bottom plate 3 by bolts 4 and nuts 8, and the middle of each strip plate faces the bottom plate The surface of 3 is provided with an arc-shaped groove matching the electrode (such as the soft graphite ground electrode 1), as shown in Fig. 1, Fig. 2 and Fig. 3 . When the pressing plate 2 is an integrated structure, the pressing plate 2 is a flat plate, the two sides of the pressing plate 2 are connected and fixed with the base plate 3 by bolts 4 and nuts 8, and the middle part of the pressing plate 2 is provided with the electrode (such as software) facing the surface of the base plate 3. Graphite ground electrode 1) Matching arc-shaped grooves, as shown in Figure 4 and Figure 5.

In this embodiment, the base plate 3 is rectangular, the base plate 3 contains two long sides and two short sides, the center line of the guide rod 5 is parallel to one long side of the base plate 3, and one end of the guide rod 5 is welded to the base plate 3, the guide rod 5 is located in the middle of the two long sides, as shown in Figure 1. The surface of the bottom plate 3 facing the pressure plate 2 is provided with an arc-shaped groove matching the electrode (such as the soft graphite ground electrode 1 ). Guide plate 6 is rectangular, and guide plate 6 also contains two long sides and two short sides, and the center line of guide bar 5 is parallel with a long side of guide plate 6, and the center line of guide bar 5 deviates from the center of gravity of guide plate 6, as As shown in FIG. 1 and FIG. 4 , and located on the side adjacent to the one long side of the guide plate 6 , the other end of the guide rod 5 is welded to the lower surface of the guide plate 6 . The lower surface of the bottom plate 3 and the lower surface of the guide plate 6 are located in the same plane. The guide plate 6 is provided with two positioning holes 7, the positioning holes 7 are through holes, the positioning holes 7 are used to connect and fix another electrode, and the two positioning holes 7 are located on the side adjacent to the other long side of the guide plate 6 .

The electrode is a soft graphite ground electrode 1, and the part of the electrode located between the pressing plate 2 and the bottom plate 3 is cylindrical, and along the axis direction of the cylindrical shape, the length of the pressing plate 2 is 5 to 7 times the diameter of the cylindrical shape, The length of the bottom plate 3 is 5 to 7 times the diameter of the cylinder. That is, if the diameter of the soft graphite grounding electrode 1 is Φ20mm, the compression length L needs to satisfy 140mm≥L≥100mm; then the left side of the first pressure plate 2 on the left and the first pressure plate 2 on the right The distance between the right side of the platen is greater than or equal to 100mm and less than or equal to 140mm, and the distance between the left side of the platen 2 and the right side of the platen 2 in Figure 4 is greater than or equal to 100mm and less than or equal to 140mm. In addition, the surfaces of the pressing plate 2, the bottom plate 3, the guide rod 5 and the guide plate 6 are galvanized to prevent oxidation and corrosion.

The electrode connection plate can not only be used to connect the soft graphite ground electrode 1 and the ground electrode, but also can connect two other electrodes. The electrode connection plate is simple to manufacture and low in cost. The main body of the electrode connecting plate is welded by metal materials, and each component has a simple structure and is easy to manufacture or purchase.

The electrode connection plate reduces the construction workload and can meet the requirements of different buried depths. The length of the guide rod of the electrode connection plate can be selected according to actual needs. After welding and assembly, it is brought to the construction site. The construction personnel only need to adjust the tightness of the fasteners to complete the connection between the ground electrode and the tower or other equipment.

The electrode connection plate improves the strength of the connection between the graphite ground electrode and the pole tower or other grounding equipment. The strength of the electrode connection plate after metal welding has been improved, and the resistance to external destructive factors has also been improved accordingly.

The above is only a specific embodiment of the present invention, and cannot limit the scope of the invention, so the replacement of its equivalent components, or the equivalent changes and modifications made according to the patent protection scope of the present invention, should still fall within the scope of this patent. category.

Claims (10)

1. a kind of electrode connection plate, it is characterized in that, described electrode connection plate comprises base plate (3), guide rod (5) and guide plate (6), base plate (3), guide rod (5) and guide plate (6) all Made of solid conductive material, the bottom plate (3) is electrically connected to the guide plate (6) through the guide rod (5), and the electrode connection plate also includes a pressure plate (2), which can clamp and fix one end of the electrode on the Between the pressure plate (2) and the bottom plate (3). 2. The electrode connecting plate according to claim 1, characterized in that: both sides of the pressing plate (2) are connected and fixed to the bottom plate (3) by bolts (4) and nuts (8). 3. The electrode connecting plate according to claim 1, characterized in that: the middle part of the pressing plate (2) is provided with an arc-shaped groove matching the electrode. 4. The electrode connecting plate according to claim 1, characterized in that: the pressing plate (2) is a split structure, the pressing plate (2) contains a plurality of strip plates, and the two ends of each strip plate are passed through bolts (4 ) and nuts (8) are connected and fixed with the base plate (3), and the middle part of each strip plate is provided with arc-shaped grooves matched with the electrodes. 5. The electrode connecting plate according to claim 1, characterized in that: the surface of the bottom plate (3) facing the pressing plate (2) is provided with arc-shaped grooves matching the electrodes. 6. The electrode connection plate according to claim 1, characterized in that: the bottom plate (3) is rectangular, the center line of the guide rod (5) is parallel to a side of the bottom plate (3), and one end of the guide rod (5) Welded on the lower surface of the base plate (3). 7. The electrode connection plate according to claim 6, characterized in that: the guide plate (6) is rectangular, the center line of the guide rod (5) is parallel to a long side of the guide plate (6), and the guide rod (5) The centerline deviates from the center of gravity of the guide plate (6), and the other end of the guide rod (5) is welded to the lower surface of the guide plate (6). 8. The electrode connection plate according to claim 7, characterized in that: the lower surface of the bottom plate (3) and the lower surface of the guide plate (6) are located in the same plane. 9. The electrode connection plate according to claim 7, characterized in that: two positioning holes (7) are provided in the guide plate (6), and the two positioning holes (7) are located on the other side of the guide plate (6). side adjacent side. 10. The electrode connecting plate according to claim 1, characterized in that: the part of the electrode located between the pressing plate (2) and the bottom plate (3) is cylindrical, and along the axial direction of the cylinder, the portion of the pressing plate (2) The length is 5 to 7 times the diameter of the cylinder, and the length of the bottom plate (3) is 5 to 7 times the diameter of the cylinder.