CN219874073U - Direct-reading type grounding device - Google Patents

Abstract

The utility model relates to the technical field of power accessories, and particularly discloses a direct-reading type grounding device which comprises a grounding bar, a grounding bus and a grounding wire connected between the grounding bus and power equipment.

Description

Direct-reading type grounding device

Technical Field

The utility model relates to the technical field of power accessories, and particularly discloses a direct-reading type grounding device.

Background

With the continuous expansion of the power grid scale, the operation and maintenance tasks of the power grid are also increased year by year. According to the national and related power safety regulations of the power industry, when working on power equipment, operators must be provided with grounding wires in all directions which can possibly transmit power to a working place, which is a reliable safety measure for protecting the operators from sudden power in the working place, and meanwhile, the residual charge of a disconnected part of the equipment can be discharged from the ground.

The conventional common grounding device generally comprises a connecting wire clamp, a grounding wire operating rod and a conductor, wherein the connecting wire clamp clamps a grounding circuit through a knob or a clamping spring during operation, and the operating rod is used for fixing the grounding clamp between a human body and the grounding wire, so that a worker can keep enough safe distance for operation. However, this kind of grounding device has insufficient contact with soil, so that the grounding resistance is large, and the discharged charges cannot be discharged timely, which has a safety hazard.

Disclosure of Invention

The utility model aims to solve the problems of large grounding resistance and potential safety hazard caused by insufficient contact between the traditional grounding device and soil.

In order to achieve the above purpose, the basic scheme of the utility model provides a direct-reading type grounding device, which comprises a grounding bar, a grounding bus and a grounding wire connected between the grounding bus and electric equipment, wherein the grounding bus is in sliding detachable connection with the grounding bar, a plurality of through holes communicated with the grounding bus are uniformly formed in the side face of the grounding bar, the top of the grounding bar is detachably connected with a grounding plate, and one end of the grounding plate is also detachably connected with the grounding bus.

The principle and effect of this basic scheme lie in:

1. compared with the prior art, the utility model has the advantages that the through holes are arranged on the side surface of the grounding rod, so that soil can conveniently enter the grounding rod through the through holes, the contact area between the electric charge of the grounding rod and the soil is increased, the grounding resistance is reduced, the grounding protection effect on power equipment is enhanced, the safety of the working environment of workers is improved, the grounding depth can be conveniently and rapidly measured according to the length of the grounding bus extending into the grounding rod by arranging the sliding detachable connection of the grounding bus and the grounding rod, the working efficiency of the workers is improved, the working process is safer, and the problems of large grounding resistance and potential safety hazards caused by insufficient contact between the traditional grounding device and the soil are solved.

2. The grounding plate is arranged, so that the height position of the grounding bus can be conveniently fixed after the grounding depth of the grounding bus is determined.

Further, the top of the grounding rod is provided with a containing groove for containing a grounding bus, and the grounding bus is in sliding connection with the containing groove. Through setting up the holding tank, be convenient for hold the earth busbar and be convenient for the earth busbar simultaneously and do the piston motion in the earth bar to adjust the earth depth.

Further, the limit cap for limiting the grounding bus is detachably connected with the top thread of the grounding bus. Through setting up spacing cap, be convenient for the earth busbar stretch into the degree of depth of earth stick and carry out spacing, the installation of earth busbar and earth stick of being convenient for.

Further, a plurality of threaded holes are uniformly formed in the grounding plate, and the grounding bus and the grounding plate are detachably connected and fixed through threads of the fastening piece and the threaded holes. The grounding bus is fixed with the grounding plate through the threaded holes and the fasteners, so that the grounding connection between the structures is prevented from being influenced due to the fact that the grounding bus continuously slides downwards.

Further, the resistance value of the grounding wire is smaller than 2 ohms. The low resistance makes the grounding safer.

Further, the ground strap is a annealed copper wire having a cross section greater than 50 square millimeters. The annealed copper wire with the cross section larger than 50 square millimeters has good conductivity, can be bent at will and is more convenient to install.

Further, the grounding bus is a galvanized iron wire with a cross section of more than 100 square millimeters. Galvanized iron wires with cross sections greater than 100 square millimeters are more resistant to corrosion, making the ground bus more durable.

Further, the grounding bus is flat steel with a cross section of more than 100 square millimeters and a thickness of not less than 4 millimeters. Low cost and good corrosion resistance.

Further, the area of the ground plate is greater than 0.75 square meters. By adopting the grounding plate with a larger area, the installation of the grounding bus is more convenient and firm.

Further, the ground plate has a thickness greater than 5 millimeters. By adopting the grounding plate with larger thickness, the grounding bus is more stable in installation.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the drawings that are needed in the description of the embodiments will be briefly described below, it being obvious that the drawings in the following description are only some embodiments of the present utility model, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.

Fig. 1 is a perspective view showing the structure of a direct-reading grounding device according to embodiment 1 of the present utility model;

fig. 2 is a front view showing the structure of a direct-reading grounding device according to embodiment 1 of the present utility model.

Detailed Description

In order to further describe the technical means and effects adopted by the present utility model for achieving the intended purpose, the following detailed description will refer to the specific implementation, structure, characteristics and effects according to the present utility model with reference to the accompanying drawings and preferred embodiments.

Reference numerals in the drawings of the specification include: the grounding rod 1, the grounding bus 2, the grounding wire 3, the accommodating groove 4, the limiting cap 5, the through hole 6, the grounding plate 7, the threaded hole 8, the power equipment 9 and the wiring terminal 10.

A direct-reading grounding device, embodiment 1 is shown in fig. 1 and 2: the electric power device comprises a grounding rod 1, a grounding bus 2 and a grounding wire 3 connected between the grounding bus 2 and electric equipment 9, wherein the resistance value of the grounding wire 3 is 1.5 ohms, the tail end of the grounding wire 3 is connected with the top of the grounding bus 2 in a binding mode, the grounding bus 2 is a annealed copper wire with the cross section of 64 square millimeters, the grounding bus 2 is connected with the grounding rod 1 in a sliding and detachable mode, a containing groove 4 for containing the grounding bus 2 is formed in the top of the grounding rod 1, the grounding bus 2 is connected with the containing groove 4 in a sliding mode, a limit cap 5 for limiting the grounding bus 2 is connected with threads on the top of the grounding bus 2 in a detachable mode, and a wiring terminal 10 used for being connected with the grounding wire 3 is arranged on the top of the grounding bus 2 in a penetrating mode through the limit cap 5.

The side of the grounding rod 1 is uniformly provided with nine through holes 6 communicated with the grounding bus 2, the top of the grounding rod 1 is detachably connected with a grounding plate 7, the bottom end of the grounding plate 7 is fixedly connected with the grounding rod 1 through a fastener, the grounding plate 7 is formed by processing and manufacturing a steel plate with high corrosion resistance, the area of the grounding plate 7 is 0.9 square meter, the thickness of the grounding plate 7 is 7.5 mm, one end of the grounding plate 7 is also detachably connected with the grounding bus 2, three symmetrical threaded holes 8 are uniformly formed in the grounding plate 7, the grounding bus 2 and the grounding plate 7 are detachably connected and fixed through threads of the fastener and the threaded holes 8, and the grounding bus 2 is clamped and fixed between the grounding plate 7 and the fastener.

In the specific implementation process of the utility model, the power equipment 9, the ground wire 3 and the ground bus 2 are sequentially connected and fixed, then the ground bus 2 is inserted into the ground rod 1 from the accommodating groove 4 for a certain length, the ground bus 2 is fixedly clamped between the fastening piece and the ground plate 7 through the fastening piece, wherein the length of the ground bus 2 inserted into the ground rod 1 is determined according to construction requirements, and finally the ground rod 1 is buried in soil from the bottom to two thirds of the length thereof, and in the discharging process, electric charges are sequentially conducted into the soil through the ground wire 3, the ground bus 2, the through hole 6 and the ground rod 1 until the construction is finished.

Example 2 is identical to the structure employed in example 1, the connection between the structures, and the manner in which the structures are implemented, and the difference between example 2 and example 1 is that: the ground strap 2 is a galvanized wire with a cross section of 121 square millimeters.

Example 3 is the same as the structure adopted in example 1, the connection between the structures, and the manner of implementation and use of the structures, and the difference between example 3 and example 1 is that: the ground strap 2 is a flat steel with a cross section of 110 square millimeters and a thickness of 5 millimeters.

Compared with the prior art, the utility model has the advantages that the through holes 6 are arranged on the side surface of the grounding rod 1, so that soil can conveniently enter the grounding rod 1 through the through holes 6, the contact area between the electric charge of the grounding rod 1 and the soil is increased, the grounding resistance is reduced, the grounding protection effect on the power equipment 9 is enhanced, the safety of the working environment of workers is improved, the grounding bus 2 is detachably connected with the grounding rod 1 in a sliding manner, the grounding depth of a reading device can be conveniently and rapidly measured directly according to the length of the grounding bus 2 extending into the grounding rod 1, the working efficiency of workers is improved, the working process is safer, and the problems of large grounding resistance and potential safety hazards caused by insufficient contact between the traditional grounding device and the soil are solved.

The present utility model is not limited to the above embodiments, but is capable of modification and variation in detail, and other modifications and variations can be made by those skilled in the art without departing from the scope of the present utility model.

Claims (10)

1. The utility model provides a direct-reading type earthing device which characterized in that: the grounding bar is connected with the grounding bar in a sliding and detachable mode, a plurality of through holes communicated with the grounding bar are uniformly formed in the side face of the grounding bar, the top of the grounding bar is detachably connected with a grounding plate, and one end of the grounding plate is connected with the grounding bar in a detachable mode.

2. The direct-reading grounding device according to claim 1, wherein the top of the grounding rod is provided with a containing groove for containing a grounding bus, and the grounding bus is slidably connected with the containing groove.

3. A direct-reading grounding device according to claim 1 or 2, wherein the top thread of the grounding busbar is detachably connected with a limiting cap for limiting the grounding busbar.

4. A direct-reading grounding device according to claim 3, wherein the grounding plate is uniformly provided with a plurality of threaded holes, and the grounding bus and the grounding plate are detachably connected and fixed through threads of the fastener and the threaded holes.

5. The direct-reading grounding device according to claim 4, wherein the resistance of the grounding wire is less than 2 ohms.

6. A direct-reading grounding device as in claim 4 or 5 wherein said grounding strap is annealed copper wire having a cross-section greater than 50 square millimeters.

7. A direct-reading grounding device according to claim 4 or 5, characterized in that the grounding busbar is a galvanized wire with a cross section of more than 100 square millimeters.

8. The direct-reading grounding device according to claim 1, wherein the grounding busbar is a flat steel with a cross section of more than 4 or 5 square millimeters and a thickness of not less than 4 millimeters.

9. A direct-reading grounding device according to claim 4 or 5, wherein the area of said grounding plate is greater than 0.75 square meters.

10. A direct-reading grounding device according to claim 4 or 5, wherein the thickness of the grounding plate is greater than 5 mm.