CN220543099U - Electric measuring instrument calibrating device - Google Patents

Abstract

The utility model relates to the technical field of circuit equipment, in particular to an electric measuring instrument calibrating device, which comprises a fixed disc, wherein two front-back symmetrical fixed blocks are fixedly arranged at the upper end of the fixed disc, a rotating disc capable of rotating left and right is connected between the two fixed blocks, scale grooves are formed in the front end face and the rear end face of the rotating disc, pointers are fixedly arranged at the upper ends of the two fixed blocks, a fixed box is fixedly arranged at the upper end of the rotating disc, a power motor is fixedly arranged on the front end face of the fixed box, a power rod is connected with the rear end of the power motor, two front-back symmetrical sliding plates I are connected with threads at the front end and the rear end of the power rod in a threaded manner, clamping plates are connected with the two clamping plates at the front end and the rear end of the two sliding plates in a threaded manner, push springs which are uniformly distributed are connected between the first sliding plates and the corresponding clamping plates, and observation windows are fixedly embedded at the front end and the rear end of the fixed box, and the two clamping plates are driven to be mutually close by the power motor, so that the front end and the clamp-shaped ammeter and the rear end are prevented from sliding, and the accuracy is improved.

Description

Electric measuring instrument calibrating device

Technical Field

The utility model relates to the technical field of circuit equipment, in particular to an electric measuring instrument calibrating device.

Background

Leakage current refers to the current that forms between metallic parts that are electrically isolated from each other, or between a live part and a grounded part, through the surrounding medium or insulating surface thereof in the absence of a fault-applied voltage. The method is one of important marks for measuring the insulation performance of the electric appliance, and is a main index of the safety performance of the product;

at present, a clamp ammeter is generally adopted to detect leakage current, and the clamp ammeter needs to calibrate parameters such as current indication error, influence of current position, influence of current angle and load current before use so as to ensure measurement accuracy of the clamp ammeter, and then a plurality of special parameter calibration devices are needed to carry out matched calibration. However, the multiple parameter calibration devices are inconvenient to carry, so that a measurer needs to carry a large amount of equipment to arrive at a site for calibration and detection, and the measurer has heavy load and is inconvenient to measure leakage current.

Disclosure of Invention

The utility model aims to provide an electric measuring instrument calibrating device which is used for overcoming the defects in the prior art.

According to the electric measuring instrument calibration device, the electric measuring instrument calibration device comprises a fixed disc, two front-back symmetrical fixed blocks are fixedly arranged at the upper end of the fixed disc, a rotating disc capable of rotating left and right is connected between the two fixed blocks, scale grooves are formed in the front end face and the rear end face of the rotating disc, pointers are fixedly arranged at the upper ends of the two fixed blocks, a fixed box is fixedly arranged at the upper end of the rotating disc, a power motor is fixedly arranged on the front end face of the fixed box, a power rod is connected with the rear end of the power motor in a power mode, two sliding plates I which are symmetrically arranged in the front and the rear are in threaded connection with the periphery of the power rod, clamping plates I are oppositely arranged at the front end and the rear end of the power rod, clamping plates I are connected with the corresponding clamping plates, push springs which are uniformly distributed are connected between the sliding plates I and the corresponding clamping plates, observation windows are fixedly embedded at the front end and the rear end of the fixed box, the two clamping plates are driven to be mutually close to each other through the power motor, and accordingly the front end and the rear end of a clamp ammeter are clamped, and the accuracy of the detection result is improved.

Preferably, the lower end of the fixed disk is connected with a second sliding plate in a sliding way, a sliding cavity is arranged in the second sliding plate, a sliding ring is arranged in the sliding cavity, a magnetic disk is connected in the second sliding plate, the magnetic disk is fixedly connected with the sliding ring, rubber pads are connected on the lower end face of the fixed disk and positioned at the front end and the rear end of the second sliding plate, the upper end face of the sliding ring and the sliding cavity are connected with a reset spring, rotation of the fixed disc can be achieved, the circumferential angle of the clamp ammeter arranged in the fixed box is adjusted, the fixed disc can slide left and right on the sliding plate through the sliding plate, and the fixed box is prevented from rotating to be in contact with an electric wire to influence the detection effect.

The beneficial effects of the utility model are as follows:

the power motor works to drive the two clamping plates to approach each other, so that the front end and the rear end of the clamp ammeter are clamped and fixed, the clamp ammeter is prevented from sliding, and the accuracy of a detection result is improved;

can realize the rotation of fixed disk, adjust the circumference angle of the pincerlike ampere meter that sets up in the fixed case, through the sliding plate, can make the fixed disk slide about on the sliding plate, prevent that the fixed case is rotatory to make contact with the electric wire and influence the detection effect.

Drawings

FIG. 1 is a schematic view of the appearance of the present utility model;

FIG. 2 is a schematic top view of the structure of FIG. 1 of the present utility model;

FIG. 3 is a schematic elevational view of the present utility model of FIG. 1;

FIG. 4 is a schematic side view of the structure of FIG. 1 in accordance with the present utility model;

FIG. 5 is a schematic view of the bottom structure of FIG. 1 in accordance with the present utility model;

FIG. 6 is a schematic cross-sectional view of A-A of the utility model 2;

FIG. 7 is a schematic view in partial cross-section of the utility model at B-B in FIG. 3;

FIG. 8 is an enlarged schematic view of a portion of the disk of FIG. 5 in accordance with the present utility model;

in the figure:

10. a fixed plate; 11. a second sliding plate; 12. a rotating disc; 13. a magnetic disk; 14. a slip ring; 15. a rubber pad; 16. a fixed box; 17. a scale groove; 18. a fixed block; 19. a pointer; 20. a power motor; 21. an observation window; 22. a power lever; 23. a thread slider; 24. a first sliding plate; 25. a clamping plate; 26. pushing the spring; 27. a sliding cavity.

Detailed Description

For the purpose of making the objects, technical solutions and advantages of the embodiments of the present utility model more apparent, the technical solutions of the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model, and it is apparent that the described embodiments are some embodiments of the present utility model, but not all embodiments of the present utility model. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

It will be understood that when an element is referred to as being "fixed to" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present:

examples

Referring to fig. 1-8, an electric measuring instrument calibration device according to an embodiment of the utility model comprises a fixed disc 10, two fixing blocks 18 which are symmetrical in front and back are fixedly arranged at the upper end of the fixed disc 10, a rotating disc 12 which can rotate left and right is connected between the two fixing blocks 18, scale grooves 17 are respectively formed in the front end face and the rear end face of the rotating disc 12, pointers 19 are fixedly arranged at the upper end of the two fixing blocks 18, a fixed box 16 is fixedly arranged at the upper end of the rotating disc 12, a power motor 20 is fixedly arranged on the front end face of the fixed box 16, a power rod 22 is connected at the rear end of the power motor 20, two sliding plates 24 which are symmetrical in front and back are in threaded connection with the periphery of the power rod 22 are oppositely arranged at the front end and the rear end of the power rod 22, clamping plates 25 are respectively connected at the mutually close ends of the two sliding plates 24, push springs 26 which are uniformly distributed are respectively connected between the sliding plates 24 and the corresponding clamping plates 25, and observation windows 21 are fixedly embedded at the front end and the rear end of the fixed box 16;

the power motor 20 is electrified to work so as to drive the power rod 22 to rotate, the two sliding plates 24 fixedly arranged on the threaded sliding block 23 are driven to be close to each other through threaded connection between the power rod 22 and the threaded sliding block 23, so that the connected clamping plates 25 are driven to be close to each other, the front clamping plate 25 and the rear clamping plate 25 are in butt joint with the clamp ammeter and are communicated with each other, the clamping plates 25 are continuously in contact with the clamp ammeter through the push springs 26, the front end and the rear end of the clamp ammeter are connected with the two clamping plates 25 in a clamping mode, a user pushes the fixed box 16, the fixed box 16 rotates by taking the rotating disc 12 as a rotating shaft, the rotating angle of the fixed box 16 can be obtained through the scale groove 17 and the pointer 19, and the user can observe the reading of the clamp ammeter through the observation window 21.

Examples

Referring to embodiment 1, according to the electric measuring instrument calibration device of the embodiment of the utility model, the lower end of a fixed disk 10 is slidably connected with a second sliding plate 11, a sliding cavity 27 is formed in the second sliding plate 11, a sliding ring 14 is arranged in the sliding cavity 27, a magnetic disk 13 is connected in the second sliding plate 11, the magnetic disk 13 is fixedly connected with the sliding ring 14, rubber pads 15 are connected on the lower end face of the fixed disk 10 and positioned at the front end and the rear end of the second sliding plate 11, and a reset spring is connected between the upper end face of the sliding ring 14 and the sliding cavity 27;

through magnetic disk 13, adsorb fixed disk 10 on the metal surface, make the connection set up two rubber pads 15 on fixed disk 10 and metal surface laminating, prevent fixed disk 10 rotatory, when needs rotatory fixed disk 10, through pulling fixed disk 10 upward, slip ring 14 is relative with slip board two 11 slide down in the slide chamber 27, thereby make the rubber pad 15 on the lower terminal surface of fixed disk 10 lose laminating with the metal surface, the user can rotate fixed disk 10, after the angle regulation, put down fixed disk 10, slip board two 11 moves down under reset spring's spring force promotion, drive with slip board two 11 sliding fit's fixed disk 10 downwardly moving, rubber pad 15 laminating metal surface, through slip board two 11, make fixed disk 10 can slide on slip board two 11 left and right sides, prevent the electric wire of contact when pincerlike ampere meter rotates with the rotation disk 12 bit rotation axis.

It will be apparent to those skilled in the art that various modifications to the above embodiments may be made without departing from the general spirit and concepts of the utility model. Which fall within the scope of the present utility model. The protection scheme of the utility model is subject to the appended claims.

Claims (6)

1. An electrical measuring instrument calibrating device, comprising a fixed disk (10), characterized in that: the utility model discloses a rotary table, including fixed disk (10), fixed disk (18), power motor (20) have been set firmly on the upper end of fixed disk (10), two be connected with between fixed disk (18) pivoted rolling disc (12) about can, scale groove (17) have all been seted up on the front and back both ends face of rolling disc (12), two pointer (19) have all been set firmly on the upper end of fixed disk (18), fixed tank (16) have been set firmly on the front end face of fixed tank (16), the rear end power of power motor (20) is connected with power pole (22), threaded connection has two sliding plate one (24) of front and back symmetry on the periphery of power pole (22).

2. An electrical meter calibration assembly as defined in claim 1, wherein: the two first sliding plates (24) are connected with clamping plates (25) at the mutually approaching ends, and pushing springs (26) which are uniformly distributed are connected between the first sliding plates (24) and the corresponding clamping plates (25).

3. An electrical meter calibration assembly as defined in claim 2, wherein: the lower extreme sliding connection of fixed disk (10) has sliding plate two (11), be equipped with in sliding plate two (11) and seted up sliding chamber (27), be equipped with slip ring (14) in sliding chamber (27), sliding plate two (11) internal connection has magnetic disk (13), magnetic disk (13) with slip ring (14) fixed connection, on the lower terminal surface of fixed disk (10), and be located both ends all are connected with rubber pad (15) around sliding plate two (11).

4. An electrical meter calibration assembly as defined in claim 3, wherein: the threads at the front end and the rear end of the two power rods (22) are oppositely arranged.

5. An electrical meter calibration assembly as defined in claim 4, wherein: a return spring is connected between the upper end face of the sliding ring (14) and the sliding cavity (27).

6. An electrical meter calibration assembly as defined in claim 5, wherein: the front end and the rear end of the fixed box (16) are fixedly embedded with observation windows (21).