CN214252435U - Portable integrated grounding shaking measuring device - Google Patents

Abstract

The invention relates to a portable integrated grounding shaking detection device which comprises a pulley block, a root dividing control handle, a power connection wire, a spring pressing sheet, a spiral grain grounding pile and a grounding shaking table, wherein the pulley block is arranged on the upper end of the pulley block; the electric connection wire comprises a current wire C, a potential wire P and a grounding wire E; the pulley block and the root dividing control handle are used for laying and recovering the electric wire; the spring pressing sheet is arranged above the pulley block and used for pressing the laying and the recovery of the grounding wire E; a spiral clamping type grounding end is arranged on the spiral pattern grounding pile and used for connecting a grounding wire E with the spiral pattern grounding pile; the grounding megger is used for measuring and displaying the resistance value of the grounding resistor. The utility model discloses ground resistance measurement of efficiency can be improved, ground resistance measurement's stability is guaranteed.

Description

Portable integrated grounding shaking measuring device

Technical Field

The utility model relates to a ground resistance shakes and surveys instrument field, more specifically says, relates to a survey device is shaken in portable integration ground connection.

Background

The transmission line grounding device is an important part in lightning protection measures, and whether the transmission line grounding device can play a role is mainly determined by whether the transmission line grounding device is firmly installed or not and whether the grounding resistance is qualified or not. The grounding device comprises a grounding body and a grounding down lead, wherein the grounding body is a metal conductor which is buried under the ground and directly contacts with the soil; the ground down lead is a metal ground wire for connecting a lightning conductor (rod), a lightning arrester or an overhead power line tower and a grounding body, and the common material is a galvanized steel strand.

Due to geographical environment, soil corrosion and other reasons, the ground resistance of the ground buried underground is unqualified. The line tripping accidents caused by the disqualified grounding resistance occur in the range of the power grid. The main reasons for reviewing the conventional trip accidents of the power transmission line are that the grounding resistance is unqualified and the unqualified grounding resistance cannot be found in time, so that the lightning resistance level of a tower is reduced, and the line is tripped. Therefore, it is very important to ensure the stable and qualified resistance value of the grounding resistor. Therefore, the periodic ground resistance shaking of the overhead transmission line and the resistance shaking of the newly-built line are indispensable long-term operations.

The main tools required for the traditional grounding megger operation include: the grounding megger, a grounding wire, a grounding pile, a hammer, a wrench and an insulating glove. The basic configuration of whole traditional ground connection rocking survey personnel is 3 people, and alone lay, arrangement ground connection, and the ground connection stake is buried underground alone, and alone operates the ground connection megger, and the personnel are more. A plurality of traditional ground connection megger instruments are not portable, and face in the measurement process that the earth connection easily ties, buries the ground connection stake factor of safety low, the earth connection end is poor with ground connection stake connection reliability, influence a great deal of problems such as ground resistance value measurement.

Disclosure of Invention

Technical problem to be solved

For solving the problem that prior art exists, the utility model provides a portable integration ground connection shakes survey device can improve ground resistance measurement efficiency, guarantee ground resistance measuring stability.

(II) technical scheme

In order to achieve the above object, the utility model discloses a main technical scheme include:

a portable integrated grounding shaking measuring device is designed, and comprises a pulley block, a root dividing control handle, a power connection wire, a spring pressing sheet, a spiral line grounding pile, a tool storage box and a grounding shaking table; the electric connection wire comprises a current wire C, a potential wire P and a grounding wire E; the pulley block and the root dividing control handle are used for laying and recovering the electric wire; the spring pressing sheet is arranged above the pulley block and used for pressing the laying and the recovery of the grounding wire E; be provided with spiral clamp type ground connection end on the spiral line ground connection stake, traditional ground connection stake has been improved to spiral line ground connection stake and has buried the mode underground, can greatly reduce work intensity of labour, improve work efficiency, spiral clamp type ground connection end is used for improving the reliability that earth connection E and spiral line ground connection stake are connected, has ensured the accuracy nature of earth resistance value measurement.

The pulley block simultaneously contains a current line C, a potential line P and a grounding line E, and the pulley block can meet the requirements of the operation site on the time and the laying length for laying the power connection line in a manual mode. The root control handle can set the handles of the other two grounding wires to be in a locking state while winding and unwinding one grounding wire, so that root control over the current wire C, the potential wire P and the grounding wire E is realized.

The spring pressing sheet is an alloy spring with a large elastic coefficient, can meet the requirement of pressing the grounding wire in the process of laying and recovering the grounding wire, prevents the knotting of the grounding wire, and ensures the accuracy of the measurement of the resistance value of the grounding resistor.

The screw thread ground connection stake abandons traditional ground connection stake and uses the mode that the hammer cooperation was buried underground, has improved ground connection stake and has buried the mode underground, and is safe in utilization and portable, and its afterburning stick cooperation screw thread can easily screw in underground, has promoted ground resistance measuring efficiency and security. The spiral clamping type grounding end improves the end connection mode, is very firm, improves the connection efficiency, effectively solves the problem that the connection between the grounding wire end and the grounding pile is unreliable, reduces the contact resistance, and thus improves the accuracy of the data measured by the megger.

The tool storage box has high mechanical strength and is convenient to carry, and the spiral grounding piles are placed inside the tool storage box, so that the integrated requirement of tools and appliances can be met.

The grounding megger can accurately measure and display the resistance value of the grounding resistor.

(III) advantageous effects

Compared with the prior art, the utility model, following beneficial effect has:

the utility model has low cost, can reduce the labor intensity, improve the working efficiency and save the labor cost; the process of laying and recovering the grounding wire can be fast and simple; the step of striking with a hammer is directly omitted in the process of burying the ground pile underground, striking injury is avoided, and the situation that the ground connection megger is damaged due to the fact that the ground connection end accidentally falls off in the process of grounding resistance shaking measurement is avoided.

Drawings

Fig. 1 is a schematic structural view of the portable integrated grounding shaking device of the present invention;

FIG. 2 is a schematic view of the root-dividing control handle and the pulley block of the present invention;

FIG. 3 is a schematic view of the spring wafer of the present invention;

fig. 4 is a schematic view of the helical grounding pile of the present invention;

figure 5 is a schematic diagram of ground resistance telemetry.

In the figure: the device comprises a pulley block 1, a root dividing control handle 2, a power connection wire 3 (wherein, a current wire C3.1, a potential wire P3.2 and a grounding wire E3.3), a spring pressing sheet 4, a spiral line grounding pile 6, a spiral clamping type grounding end 6.1, a tool storage box 7, a grounding megger 8, a first grounding pile 9 and a second grounding pile 10.

Detailed Description

For the purpose of better explaining the present invention and to facilitate understanding, the present invention will be described in detail by way of specific embodiments with reference to the accompanying drawings.

As shown in fig. 1, the invention provides a portable integrated grounding shaking detection device, which comprises a pulley block 1, a root dividing control handle 2, a power connection wire 3, a spring pressing sheet 4, a spiral-pattern grounding pile 6, a tool storage box 7 and a grounding shaking table 8; the connecting wire 3 comprises a current wire C3.1, a potential wire P3.2 and a grounding wire E3.3; the pulley block 1 and the root dividing control handle 2 are used for laying and recovering the electric wire 3; the spring pressing sheet 4 is arranged above the pulley block 1 and is used for pressing the laying and recovery of the grounding wire E3.3; be provided with spiral clamp type ground connection end 6.1 on spiral line ground connection stake 6, spiral line ground connection stake 6 has improved traditional ground connection stake's the mode of burying underground, can greatly reduce work intensity of labour, improve work efficiency, spiral clamp type ground connection end 6.1 is used for improving the reliability that earth connection 3 and spiral line ground connection stake 6 are connected, has ensured the measuring accuracy nature of ground resistance value.

As shown in fig. 2, the pulley block 1 simultaneously accommodates a current line C3.1, a potential line P3.2 and a ground line E3.3, and the pulley block 1 can meet the requirements of a work site on the time and the laying length required for laying the power line 3 in a manual mode. The root control handle 2 can set the handles of the other two grounding wires to be in a locking state while winding and unwinding one grounding wire, so that root control of the current wire C3.1, the potential wire P3.2 and the grounding wire E3.3 is realized.

As shown in fig. 3, the spring pressing sheet 4 is an alloy spring with a large elastic coefficient, and can satisfy the requirement of pressing the grounding wire E3.3 in the process of laying and recycling the grounding wire 3, preventing the grounding wire E3.3 from knotting, and ensuring the accuracy of the measurement of the resistance value of the grounding resistor.

As shown in fig. 4, the helical grounding pile 6 abandons the traditional grounding pile embedding mode by matching a hammer, improves the embedding mode of the grounding pile, is safe to use and convenient to carry, can be easily screwed into the ground by matching a stress application rod with a helical thread, and improves the efficiency and the safety of the ground resistance measurement. The spiral clamping type grounding end 6.1 improves the end connection mode, is very firm, improves the connection efficiency, effectively solves the problem that the connection between the E3.3 end of the grounding wire and a grounding pile is unreliable, reduces the contact resistance and improves the accuracy of the data measured by the megger.

The tool storage box 7 is high in mechanical strength and convenient to carry, and the spiral grounding piles 6 are placed inside the tool storage box 7, so that the requirement of tool integration can be met.

The grounding megger 8 can accurately measure and display the resistance value of the grounding resistor.

The working principle of the utility model is shown in figure 5. The E column or the P2 and the C2 are connected with one end of a pure copper wire which is matched with the instrument and has the length of 5m, namely a black grounding wire E3.3, and the other end of the pure copper wire with the length of 5m is connected to a test point of a grounding body to be tested. The P column is connected with one end of a pure copper wire with the length of 20m, namely a red potential line P3.2, which is distributed along with the instrument, and the other end of the pure copper wire with the length of 20m is connected with a first grounding pile 9. The C column is connected with a pure copper wire which is matched with the instrument and has the length of 40m, namely a yellow current wire C3.1, and the other end of the pure copper wire with the length of 40m is connected with the second grounding pile 10. And rotating the rocking handle at a constant speed according to the required rotating speed, and performing rocking reading.

The utility model discloses portable integration ground connection shakes the technical requirement who surveys device setting as follows: 1) the terminals of each connector lug must be in good contact and firmly connected. 2) The two grounding electrode pins are required to be placed at the positions 20 meters and 40 meters away from the left side and the right side of a grounding body to be tested respectively. If a straight line is used to connect the two grounding piles, the grounding body to be tested should be basically on the straight line. 3) The pure copper wires with the length of 5 meters, 20 meters and 40 meters matched with the instrument can not be replaced by other wires. 4) If the grounding resistance tester is used as the center of a circle, the minimum included angle between the two grounding piles and the tester is not less than 120 degrees, and the two grounding piles can not be arranged in the same direction.

While the present invention has been described with reference to the particular embodiments illustrated in the drawings, which are meant to be illustrative only and not limiting, it will be apparent to those of ordinary skill in the art in light of the teachings of the present invention that numerous modifications can be made without departing from the spirit and scope of the invention as defined by the appended claims.

Claims (3)

1. A portable integrated grounding shaking detection device is characterized by comprising a pulley block (1), a root dividing control handle (2), a power connection wire (3), a spring pressing sheet (4), a spiral grain grounding pile (6) and a grounding shaking table (8); the electric connection wire (3) comprises a current wire C (3.1), a potential wire P (3.2) and a grounding wire E (3.3); the pulley block (1) and the root dividing control handle (2) are used for laying and recovering the butt joint electric wire (3); the spring pressing sheet (4) is arranged above the pulley block (1) and is used for pressing the laying and recovery of the grounding wire E (3.3); a spiral clamping type grounding end (6.1) is arranged on the spiral pattern grounding pile (6), and the spiral clamping type grounding end (6.1) is used for connecting a grounding wire E (3.3) with the spiral pattern grounding pile (6); the grounding megger (8) is used for measuring and displaying the resistance value of the grounding resistor.

2. The portable integrated grounding shaking detection device according to claim 1, further comprising a tool storage box (7), wherein the helically-threaded grounding piles (6) are placed inside the tool storage box (7).

3. The portable integrated grounding shaking detection device as claimed in claim 1, wherein the spring pressing sheet (4) is an alloy spring with a large elastic coefficient.

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