Four-direction inclination angle swing table for verification of insulation resistance meter

Abstract

The invention belongs to the technical field of insulation resistance meter verification, and relates to a four-direction inclination angle swing table for insulation resistance meter verification, which comprises a top layer verification platform, a middle layer verification platform and a bottom layer verification platform, and is characterized in that the middle layer verification platform is rotationally arranged on the bottom layer verification platform and can swing on the bottom layer verification platform in the left-right direction; the top-layer verification platform is rotationally arranged on the middle-layer verification platform and can swing on the middle-layer verification platform in the front-back direction, and the top-layer verification platform is provided with a fixing clamp used for fixing an insulation resistance meter, a three-layer planar structure, two sets of control bolts and two sets of control stand columns so that freedom of the inclination angle of a swing table can be achieved. The arrangement direction of the insulation resistance meter does not need to be adjusted frequently, angle inclination in the front direction, the back direction, the left direction and the right direction can be achieved, angles and programs required by verification regulations for inclination influence are met, the meter does not need to be adjusted, and verification efficiency is improved.

Description

Technical Field

[0001] The invention belongs to the technical field of insulation resistance meter verification, relates to the improvement of a verification device for verifying an insulation resistance meter under the influence of inclination, and specifically relates to a four-direction inclination angle swing table for verification of an insulation resistance meter. Background Art

[0002] In the calibration process of the insulation resistance meter, the influence of tilt is an important calibration item. This is because the insulation resistance meter cannot always be in a horizontal position during actual application. When the insulation resistance meter is tilted, it will inevitably cause a certain deviation error of its pointer, which will have a certain impact on the accuracy of the measurement result. Then we need to accurately measure the influence of the insulation resistance meter caused by the tilt, quantify it, and use it to correct the final measurement result.

[0003] According to the requirements of the calibration item of the effect of tilt in the calibration procedure of insulation resistance meter (regulation number: JJG622-1997), when we conduct the calibration, we need to tilt the insulation resistance meter in the four directions of forward, backward, left and right at the same angle (usually 5°), and then record the measured values ​​of the insulation resistance meter in the four directions respectively, and compare them with the measured values ​​of the insulation resistance meter in the horizontal position, and finally complete the calibration item of the effect of tilt. At present, the calibration item of the effect of tilt of insulation resistance meter generally adopts a two-way tilt angle swing table for calibration. The two-way tilt angle swing table has a double-layer structure. The insulation resistance meter is placed on the upper plane of the swing table, and the lower plane of the swing table is kept horizontal. Then the upper plane is adjusted by the nut to tilt the angle. The disadvantage is that it can only be tilted in the forward, backward or left and right directions at a time. When the direction of tilting needs to be changed, the direction of the insulation resistance meter needs to be re-adjusted. At the same time, since the insulation resistance meter is not fixed on the swing table, one hand needs to hold the meter and the other hand needs to shake the handle during calibration. The procedure is cumbersome and affects the calibration efficiency. Summary of the invention

[0004] Purpose of the present invention: The present invention proposes a four-way tilting angle swing table for calibrating an insulation resistance meter, comprising a 3-layer (top layer, middle layer, bottom layer) calibration platform, 2 sets of hinges, 2 sets of control pins, 2 sets of control columns and 1 set of fixing fixtures. The 3-layer calibration platform is connected and rotated by the hinges, and the tilting direction of the device is controlled by inserting the control pins into the upper, middle and lower holes of the control columns, so that the top plane can be tilted in four directions, namely, forward, backward, left and right. The insulation resistance meter is fixed firmly on the top plane by the fixing fixture, avoiding the complicated operation of holding the insulation resistance meter with one hand and shaking the handle with the other hand. This not only increases the stability of the calibration process, but also improves the calibration efficiency.

[0005] Technical solution of the present invention

[0006] A four-way tilting angle swing table for calibrating an insulation resistance meter comprises top, middle and bottom calibration platforms. The middle calibration platform is rotatably arranged on the bottom calibration platform and can be swung in the left and right directions on the bottom calibration platform. The top calibration platform is rotatably arranged on the middle calibration platform and can be swung in the front and back directions on the middle calibration platform. A fixing fixture for fixing the insulation resistance meter is arranged on the top calibration platform.

[0007] Furthermore, the top-level calibration platform can be swung 5° in the front-to-back direction on the middle-level calibration platform.

[0008] Furthermore, the middle-level calibration platform can be swung 5° in the left-right direction on the bottom-level calibration platform.

[0009] Furthermore, an outer hinge axis for left and right tilting is arranged on the bottom calibration platform, and an inner hinge axis for left and right tilting cooperating with the outer hinge axis for left and right tilting is arranged at the bottom of the middle calibration platform, and the inner hinge axis for left and right tilting and the outer hinge axis for left and right tilting are rotatably connected via a left and right tilting hinge rotating shaft.

[0010] Furthermore, left and right tilt control columns are arranged on the bottom calibration platform, and the tops of the left and right tilt control columns pass through the middle calibration platform. Pin controls are arranged on the left and right tilt control columns to cooperate with the left and right tilt control pins arranged on the edge of the middle calibration platform.

[0011] Furthermore, an inner hinge axis for front and rear tilting is arranged on the middle-level calibration platform, and an inner hinge axis for front and rear tilting cooperating with the inner hinge axis for front and rear tilting is arranged at the bottom of the top-level calibration platform, and the inner hinge axis for front and rear tilting and the outer hinge axis for front and rear tilting are rotatably connected via the hinge rotating shaft for front and rear tilting.

[0012] Furthermore, a front and rear tilt control column is provided at the bottom of the top-level calibration platform, a pin hole is provided on the front and rear tilt control column, and a front and rear tilt control pin is provided on the middle-level calibration platform to cooperate with the pin hole on the front and rear tilt control column.

[0013] Furthermore, the fixing fixture includes two fixing columns symmetrically arranged on the top calibration platform, threaded holes are arranged in the fixing columns, screws are arranged in the threaded holes, clamps are arranged at opposite ends of the two screws, and rotating disks are arranged at the other ends of the two screws.

[0014] Beneficial Effects

[0015] The present invention provides a four-direction tilting angle swing table for insulation resistance meter calibration, which has the following beneficial effects:

[0016] 1. Through a set of fixing fixtures located on the top verification platform, the insulation resistance meter can be easily fixed on the top platform, without holding the meter with one hand and shaking the handle with the other hand, thus avoiding the measurement error caused by the shaking of the meter when reading and improving the measurement accuracy.

[0017] 2. The three-layer plane structure, two sets of control pins and control columns are used to realize the freedom of the tilt angle of the swing table. There is no need to frequently adjust the placement direction of the insulation resistance meter, and the angle tilt in four directions, namely, forward, backward, left and right, can be achieved. It not only meets the angle (5°) and procedures required by the verification regulations for the influence of tilt, but also does not need to adjust the instrument, thereby improving the verification efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the structural principle of the present invention;

[0019] Among them, 1. Bottom-level calibration platform; 2. Left and right tilt control column; 3. Left and right tilt control pin; 4. Front left and right tilt hinge outer axis; 5. Front left and right tilt hinge inner axis; 6. Front left and right tilt hinge shaft; 7. Rear left and right tilt hinge outer axis; 8. Rear left and right tilt hinge inner axis; 9. Rear left and right tilt hinge shaft; 10. Middle-level calibration platform; 11. Front and rear tilt control column; 12. Front and rear tilt control pin; 1 3. Hinge inner axis for tilting forward and backward at the right end; 14. Hinge outer axis for tilting forward and backward at the right end; 15. Hinge rotating axis for tilting forward and backward at the right end; 16. Hinge outer axis for tilting forward and backward at the left end; 17. Hinge inner axis for tilting forward and backward at the left end; 18. Hinge rotating axis for tilting forward and backward at the left end; 19. Top-level calibration platform; 20. Left-side clamp; 21. Right-side clamp; 22. Left-side fixed column; 23. Right-side fixed column; 24. Left-side rotating disk; 25. Right-side rotating disk. DETAILED DESCRIPTION

[0020] The features and illustrative embodiments of various aspects of the present invention will be described in detail below. In the detailed description below, many specific details are proposed to provide a comprehensive understanding of the present invention. However, it is obvious to those skilled in the art that the present invention can be implemented without the need for some of these specific details. The following description of the embodiments is only to provide a better understanding of the present invention by illustrating examples of the present invention. The present invention is by no means limited to any specific settings and methods proposed below, but covers any improvements, replacements and modifications of structures, methods, devices without departing from the spirit of the present invention. In the accompanying drawings and the following description, known structures and technologies are not shown to avoid unnecessary ambiguity in the present invention.

[0021] It should be noted that, in the absence of conflict, the embodiments of the present invention and the features in the embodiments can be combined with each other, and the embodiments can refer to and quote each other. The present invention will be described in detail below with reference to the accompanying drawings and in combination with the embodiments.

[0022] like Figure 1 As shown in the figure, the present invention proposes a four-way tilting angle swing table for calibrating an insulation resistance meter, which is characterized in that the structure includes: a bottom calibration platform 1; a left and right tilt control column 2; a left and right tilt control pin 3; a hinge outer shaft 4 for front left and right tilt; a hinge inner shaft 5 for front left and right tilt; a hinge rotating shaft 6 for front left and right tilt; a hinge outer shaft 7 for rear left and right tilt; a hinge inner shaft 8 for rear left and right tilt; a hinge rotating shaft 9 for rear left and right tilt; a middle calibration platform 10; a front and rear ... The invention comprises the following components: column 11; front and rear tilt control latch 12; inner hinge axis 13 for right end front and rear tilt; outer hinge axis 14 for right end front and rear tilt; hinge rotating shaft 15 for right end front and rear tilt; outer hinge axis 16 for left end front and rear tilt; inner hinge axis 17 for left end front and rear tilt; hinge rotating shaft 18 for left end front and rear tilt; top-level calibration platform 19; left side clamp 20; right side clamp 21; left side fixed column 22; right side fixed column 23; left side rotating disk 24; right side rotating disk 25 and the like.

[0023] Place the bottom calibration platform 1 on a horizontal plane, place the insulation resistance meter to be tested on the top calibration platform 19, and rotate the left rotating disk 24 located on the left fixed column 22 and the right rotating disk 25 located on the right fixed column 23 respectively, so that the left clamping piece 20 and the right clamping piece 21 are continuously clamped toward the middle until the insulation resistance meter to be tested is completely fixed.

[0024] The middle-level inspection platform 10 is controlled to tilt 5° to the left or right by inserting the left or right tilt control pins 3 into the upper and lower holes of the left or right tilt control columns 2 .

[0025] The top-level inspection platform 19 is controlled to tilt forward and backward by 5° by inserting the front and rear tilt control pins 12 into the upper and lower holes of the front and rear tilt control columns 11 .

[0026] The remaining two groups of pages, among which the front end left and right tilting outer axis 4, the front end left and right tilting inner axis 5, the front end left and right tilting hinge shaft 6, the rear end left and right tilting outer axis 7, the rear end left and right tilting inner axis 8, and the rear end left and right tilting hinge shaft 9 are a group, which are responsible for rotating left and right and connecting the middle-level calibration platform 10 and the bottom-level calibration platform 1; among which the right end front and back tilting inner axis 13, the right end front and back tilting outer axis 14, the right end front and back tilting hinge shaft 15, the left end front and back tilting outer axis 16, the left end front and back tilting inner axis 17, and the left end front and back tilting hinge shaft 18 are a group, which are responsible for rotating front and back and connecting the middle-level calibration platform 10 and the top-level calibration platform 19.

[0027] When in use, the bottom calibration platform 1 is placed on a horizontal plane, and the insulation resistance meter to be measured is placed on the top calibration platform 19, and the left rotating disk 24 located on the left fixed column 22 and the right rotating disk 25 located on the right fixed column 23 are rotated respectively, so that the left clamping piece 20 and the right clamping piece 21 are continuously clamped toward the middle until the insulation resistance meter to be measured is completely fixed.

[0028] Embodiment 1:

[0029] When choosing to tilt to the left or right direction, first insert the front and rear tilt control pins 12 into the middle holes of the front and rear tilt control columns 11 to keep the top-level calibration platform 19 parallel and motionless with the middle-level calibration platform 10; if the left and right tilt control pins 3 are inserted into the holes below the left and right tilt control columns 2, the middle-level calibration platform 10 will tilt 5° to the right; if the left and right tilt control pins 3 are inserted into the holes above the left and right tilt control columns 2, the middle-level calibration platform 10 will tilt 5° to the left. Since the top-level calibration platform 19 and the middle-level calibration platform 10 have been controlled to remain parallel, the middle-level calibration platform 10 can drive the top-level calibration platform 19 to tilt together when it tilts. The remaining components, the hinge outer axis 4 for front end left and right tilting, the hinge inner axis 5 for front end left and right tilting, the hinge rotating axis 6 for front end left and right tilting, the hinge outer axis 7 for rear end left and right tilting, the hinge inner axis 8 for rear end left and right tilting, and the hinge rotating axis 9 for rear end left and right tilting are combined into a group of hinges responsible for left and right rotation, which are used to connect the middle-level calibration platform 10 and the bottom-level calibration platform 1, and assist the left and right tilting of the middle-level calibration platform 10.

[0030] Embodiment 2:

[0031] When choosing to tilt in the forward and backward direction, first insert the left and right tilt control pins 3 into the middle holes of the left and right tilt control columns 2, so that the bottom layer calibration platform 1 and the middle layer calibration platform 10 remain parallel and motionless. If the front and rear tilt control pins 12 are inserted into the holes below the front and rear tilt control columns 11, the top layer calibration platform 19 will tilt 5° toward the rear end; if the front and rear tilt control pins 12 are inserted into the holes above the front and rear tilt control columns 11, the top layer calibration platform 19 will tilt 5° toward the front end. The remaining components, the inner hinge shaft 13 for front and rear tilting at the right end, the outer hinge shaft 14 for front and rear tilting at the right end, the hinge rotating shaft 15 for front and rear tilting at the right end, the outer hinge shaft 16 for front and rear tilting at the left end, the inner hinge shaft 17 for front and rear tilting at the left end, and the hinge rotating shaft 18 for front and rear tilting at the left end form a group of hinges responsible for front and rear rotation, which are used to connect the middle layer calibration platform 10 and the top layer calibration platform 19, and assist the front and rear tilting of the top layer calibration platform 19.

[0032] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the field can easily think of various equivalent modifications or substitutions within the technical scope disclosed by the present invention, and these modifications or substitutions should all be covered within the protection scope of the present invention.

Claims

1. A four-way tilting angle swing table for insulation resistance meter calibration, characterized in that: It includes top, middle and bottom calibration platforms. The middle calibration platform is rotatably arranged on the bottom calibration platform and can swing on the bottom calibration platform in the left and right directions. The top calibration platform is rotatably arranged on the middle calibration platform and can swing on the middle calibration platform in the front and back directions. A fixing fixture for fixing the insulation resistance meter is arranged on the top calibration platform.

2. The four-way tilting angle swing table for insulation resistance meter calibration according to claim 1 is characterized in that: The top-level calibration platform can be swung 5° in the front-rear direction on the middle-level calibration platform.

3. The four-way tilting angle swing table for insulation resistance meter calibration according to claim 1 is characterized in that: The middle-level calibration platform can be swung 5° in the left-right direction on the bottom-level calibration platform.

4. The four-way tilting angle swing table for insulation resistance meter calibration according to claim 1 is characterized in that: An outer hinge axis for left and right tilting is arranged on the bottom calibration platform, and an inner hinge axis for left and right tilting cooperating with the outer hinge axis for left and right tilting is arranged at the bottom of the middle calibration platform. The inner hinge axis for left and right tilting and the outer hinge axis for left and right tilting are rotatably connected through the left and right tilting hinge rotating shaft.

5. The four-way tilting angle swing table for insulation resistance meter calibration according to claim 4 is characterized in that: The bottom layer calibration platform is provided with left and right tilt control columns, the tops of which pass through the middle layer calibration platform. The left and right tilt control columns are provided with pin controls, which cooperate with the left and right tilt control pins provided on the edge of the middle layer calibration platform.

6. The four-way tilting angle swing table for insulation resistance meter calibration according to claim 1 is characterized in that: An inner hinge axis for front and rear tilting is arranged on the middle-level calibration platform, and an inner hinge axis for front and rear tilting cooperating with the inner hinge axis for front and rear tilting is arranged at the bottom of the top-level calibration platform. The inner hinge axis for front and rear tilting and the outer hinge axis for front and rear tilting are rotatably connected via the hinge rotating shaft for front and rear tilting.

7. The four-way tilting angle swing table for insulation resistance meter calibration according to claim 6 is characterized in that: A front and rear tilt control column is arranged at the bottom of the top-level inspection platform, a pin hole is arranged on the front and rear tilt control column, and a front and rear tilt control pin is arranged on the middle-level inspection platform to cooperate with the pin hole on the front and rear tilt control column.

8. The four-way tilting angle swing table for insulation resistance meter calibration according to claim 1 is characterized in that: The fixing fixture comprises two fixing columns symmetrically arranged on the top verification platform, threaded holes are arranged in the fixing columns, screws are arranged in the threaded holes, clamps are arranged at opposite ends of the two screws, and rotating disks are arranged at the other ends of the two screws.

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