CN218181082U - Auxiliary device for calibrating pincerlike grounding resistance meter - Google Patents
Auxiliary device for calibrating pincerlike grounding resistance meter Download PDFInfo
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- CN218181082U CN218181082U CN202222484323.5U CN202222484323U CN218181082U CN 218181082 U CN218181082 U CN 218181082U CN 202222484323 U CN202222484323 U CN 202222484323U CN 218181082 U CN218181082 U CN 218181082U
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Abstract
The utility model discloses a pincerlike ground resistance meter verification auxiliary device, wire support frame are including vertical fagging, and the side of vertical fagging is fixed with upper plate and hypoplastron respectively perpendicularly, and the below that lies in the upper plate and the top of hypoplastron on vertical fagging are opened there are two through wires holes, and the position of upper plate and hypoplastron is close respectively to two through wires holes. Wire fixing devices are arranged on the opposite surfaces of one ends, far away from the vertical supporting plate, of the upper plate and the lower plate, and a fine adjustment mechanism is arranged below the pincer-shaped grounding resistance meter lifting platform. The utility model fixes the wires on the upper plate and the lower plate through the wire fixing device, and the wires can not move in the calibration process; the position of the jaw is adjusted up, down, left, right, front and back through the fine adjustment mechanism and the lifting platform, the influence of the eccentric position of the jaw on the indicating value change quantity can be tested, the moving distance of the fine adjustment mechanism and the lifting platform can be preset, the position of the jaw can be accurately controlled, and the error is small.
Description
Technical Field
The utility model relates to a pincerlike ground resistance meter examination technical field especially relates to a pincerlike ground resistance meter examination auxiliary device.
Background
According to the national verification regulation JJJG 1054-2009, when the clamp-type grounding resistance meter is verified, besides the measurement of error values, two other regulations are provided for position verification:
(1) The rule 6.3.5 specifies that the eccentric position influences that the connecting lead deviates from the geometric center of the binding clip and is close to the inner wall of the binding clip according to the front, the back, the left and the right, and the indication value change quantity of the connecting lead is measured;
(2) The standard resistor method requires that a clamp resistance instrument clamps a connecting wire at the output end of a standard resistor, and the connecting wire is arranged at the position which is approximate to the geometric center of a clamp head and is vertical to a clamp ring.
In the actual calibration process, because the lead-out wiring of the standard resistance box is generally a flexible wire, when manual operation is used, the requirements of geometric center, inner wall, verticality and the like specified in the regulation are difficult to accurately meet.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing a pincerlike earthing resistance-meter examination auxiliary device in order to remedy prior art's defect.
The utility model discloses a realize through following technical scheme:
a pincer-shaped grounding resistance meter verification auxiliary device comprises a standard resistance box, a wire support frame and a pincer-shaped grounding resistance meter lifting platform, wherein the wire support frame comprises a vertical supporting plate, an upper plate and a lower plate are respectively and vertically fixed on the side surface of the vertical supporting plate, two threading holes are formed in the vertical supporting plate and positioned below the upper plate and above the lower plate, wire fixing devices are respectively installed on the opposite surfaces of the upper plate and the lower plate, which are far away from one end of the vertical supporting plate, and a fine adjustment mechanism is installed below the pincer-shaped grounding resistance meter lifting platform; one end of the wire is connected with one binding post of the standard resistance box, the other end of the wire sequentially penetrates through one threading hole, one wire fixing device, the other threading hole and the other wire fixing device of the vertical supporting plate and is finally connected with the other binding post of the standard resistance box, the clamp-shaped ground resistance meter is placed on a clamp-shaped ground resistance meter lifting table, and the clamp pliers are used for detecting the outside of the wire between the upper plate and the lower plate.
The wire fixing device comprises a pressing plate, two ends of the pressing plate are respectively provided with a first screw hole, a bolt is arranged in the first screw hole, the upper plate and the lower plate are respectively provided with a second screw hole corresponding to the first screw hole, and the distance between the pressing plate and the upper plate or the lower plate is adjusted through adjusting the bolt, so that the wire is tightly pressed.
The fine adjustment mechanism comprises a transverse sliding rail, a first sliding block is installed on the transverse sliding rail in a sliding fit mode, the first sliding block is connected with a first air cylinder, a longitudinal sliding rail and a second air cylinder are installed on the first sliding block, a second sliding block is installed on the longitudinal sliding rail in a sliding fit mode, the second sliding block is connected with the second air cylinder, and the clamp-shaped grounding resistance meter lifting platform is installed on the second sliding block.
The utility model has the advantages that: the utility model fixes the wires on the upper plate and the lower plate through the wire fixing device, and the wires can not move in the calibration process; the position of the jaw is adjusted up, down, left, right, front and back through the fine adjustment mechanism and the lifting platform, the influence of the eccentric position of the jaw on the indicating value change quantity can be tested, the moving distance of the fine adjustment mechanism and the lifting platform can be preset, the position of the jaw can be accurately controlled, and the error is small.
Drawings
Fig. 1 is a schematic structural diagram of the present invention.
FIG. 2 is a diagram of a pincer-like ground resistance meter.
Detailed Description
As shown in fig. 1 and 2, an auxiliary device for calibrating a pincerlike ground resistance meter comprises a standard resistance box 1, a wire support frame and a pincerlike ground resistance meter lifting table 2, wherein the wire support frame comprises a vertical support plate 3, an upper plate 4 and a lower plate 5 are respectively and vertically fixed on the side surface of the vertical support plate 3, two threading holes 6 are formed in the vertical support plate 3 below the upper plate 4 and above the lower plate 5, and the two threading holes 6 are respectively close to the positions of the upper plate 4 and the lower plate 5. Wire fixing devices are respectively arranged on the opposite surfaces of one ends of the upper plate 4 and the lower plate 5 far away from the vertical supporting plate 3, and a fine adjustment mechanism is arranged below the pincer-shaped grounding resistance meter lifting platform 2; one end of the wire 7 is connected with a binding post of the standard resistance box 1, the other end of the wire sequentially penetrates through a threading hole of the vertical supporting plate 3, a wire fixing device, another threading hole and another wire fixing device, finally, the other binding post of the standard resistance box 1 is connected, the clamp-shaped grounding resistance meter 8 is placed on the clamp-shaped grounding resistance meter lifting platform 2, the clamp jaws 9 are used for detecting the outside of the wire 7 between the upper plate 4 and the lower plate 5, and the position of the clamp jaws 9 is adjusted up, down, left, right, front and back through the fine adjustment mechanism and the clamp-shaped grounding resistance meter lifting platform 2 in the detection process.
The wire fixing device comprises a pressing plate 10, screw holes I are formed in two ends of the pressing plate 10 respectively, bolts 11 are arranged in the screw holes I, screw holes II corresponding to the screw holes I are formed in the upper plate 4 and the lower plate 5 respectively, and the distance between the pressing plate 10 and the upper plate 4 or the lower plate 5 is adjusted through the adjusting bolts 11, so that the wire 7 is compressed tightly, the wire cannot be damaged, and the wire fixing device is convenient to install and simple in operation.
Fine-tuning including horizontal slide rail 12, sliding fit installs slider 13 on horizontal slide rail 12, slider 13 be connected with cylinder 14 slider 13 on install vertical slide rail 15 and cylinder two 16, sliding fit installs slider two 17 on vertical slide rail 15, slider two 17 is connected with cylinder two 16, pincerlike ground resistance table elevating platform 2 install on slider two 17. The front and back directions of the jaw 9 are adjusted through the first air cylinder 14, the left and right directions of the jaw 9 are adjusted through the second air cylinder 16, the up and down directions of the jaw are adjusted through the lifting platform, and the lifting platform is driven to lift through a motor and a screw rod mechanism. In the practical application process, the controller controls the moving distances of the first air cylinder 14, the second air cylinder 16 and the lifting table, and the moving distances of the first air cylinder, the second air cylinder and the lifting table can be preset according to the size of the jaw, the length of a wire and the distance between the upper plate and the lower plate, so that the jaw position can be controlled more accurately.
Standard resistance box 1: a lead 7 is connected through a wiring terminal to provide a standard resistance value;
a lead support frame: the wire fixing device is used for fixing a wire 7, one end of the wire 7 is led out of the standard resistance box 1, penetrates through the upper threading hole 6 to the lower surface of the upper plate 4, is fixed by the wire fixing device, then enters the wire fixing device on the lower plate 5 and is fixed, then passes through the upper surface of the lower plate, penetrates through the lower threading hole, and then is connected into the standard resistance box 1 to form a closed loop;
the pincerlike ground resistance meter elevating platform 2: the clamp-shaped grounding resistance meter 8 is used for placing the detected clamp-shaped grounding resistance meter and can realize up-and-down movement and front-and-back and left-and-right movement.
The experimental procedure was as follows:
(1) Determining the resistance center point of the lead 7, enabling the center point to be located in the middle position between the upper plate 4 and the lower plate 5, marking, and ensuring that the part of the lead between the upper plate 4 and the lower plate 5 is vertical through a lead fixing device;
(2) The lead 7 and the standard resistance box 1 are connected, so that the lead is ensured not to be wound and folded;
(3) Placing the clamp-shaped grounding resistance meter 8 on the clamp-shaped grounding resistance meter lifting table 2, and clamping the jaw 9 at the middle position of the lead between the upper plate 4 and the lower plate 5 to ensure that the resistance center point of the lead is at the geometric center of the jaw;
(4) And adjusting the resistance value of the standard resistance box, and starting the test. And the influence of the deflection position and the change quantity of the indication value are tested by the movement of the pincerlike ground resistance meter lifting table and the fine adjustment mechanism, so that the requirement of position verification in verification regulations is met.
Claims (3)
1. The utility model provides a pincerlike ground resistance meter examination auxiliary device which characterized in that: the wire support frame comprises a vertical supporting plate, an upper plate and a lower plate are respectively and vertically fixed on the side surfaces of the vertical supporting plate, two threading holes are formed in the vertical supporting plate and positioned below the upper plate and above the lower plate, wire fixing devices are respectively arranged on the opposite surfaces of one ends of the upper plate and the lower plate, which are far away from the vertical supporting plate, and a fine adjustment mechanism is arranged below the pincer-shaped grounding resistance meter lifting table; one end of the wire is connected with one binding post of the standard resistance box, the other end of the wire sequentially penetrates through one threading hole, one wire fixing device, the other threading hole and the other wire fixing device of the vertical supporting plate and is finally connected with the other binding post of the standard resistance box, the clamp-shaped ground resistance meter is placed on a clamp-shaped ground resistance meter lifting table, and the clamp pliers are used for detecting the outside of the wire between the upper plate and the lower plate.
2. The auxiliary device for calibrating the pincerlike ground resistance meter according to claim 1, characterized in that: the wire fixing device comprises a pressing plate, two ends of the pressing plate are respectively provided with a first screw hole, a bolt is arranged in the first screw hole, an upper plate and a lower plate are respectively provided with a second screw hole corresponding to the first screw hole, and the distance between the pressing plate and the upper plate or the lower plate is adjusted through adjusting the bolt, so that the wire is pressed tightly.
3. The auxiliary device for calibrating the pincerlike ground resistance meter according to claim 1, characterized in that: the fine adjustment mechanism comprises a transverse sliding rail, a first sliding block is installed on the transverse sliding rail in a sliding fit mode, the first sliding block is connected with a first air cylinder, a longitudinal sliding rail and a second air cylinder are installed on the first sliding block, a second sliding block is installed on the longitudinal sliding rail in a sliding fit mode, the second sliding block is connected with the second air cylinder, and the forcipated ground resistance meter lifting platform is installed on the second sliding block.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222484323.5U CN218181082U (en) | 2022-09-20 | 2022-09-20 | Auxiliary device for calibrating pincerlike grounding resistance meter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222484323.5U CN218181082U (en) | 2022-09-20 | 2022-09-20 | Auxiliary device for calibrating pincerlike grounding resistance meter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN218181082U true CN218181082U (en) | 2022-12-30 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202222484323.5U Active CN218181082U (en) | 2022-09-20 | 2022-09-20 | Auxiliary device for calibrating pincerlike grounding resistance meter |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN218181082U (en) |
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2022
- 2022-09-20 CN CN202222484323.5U patent/CN218181082U/en active Active
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