A fixed multi-point measuring scale with a vernier

Abstract

The application discloses a fixed multi-point measuring scale with a vernier, which comprises a horizontal scale, a vertical scale and an inclined scale; the horizontal scale is used for measuring the distance between the knife gap and maintaining the flatness of the horizontal direction of the knife gap; one end of the vertical scale is connected with one end of the horizontal scale perpendicularly, and the vertical scale is used for maintaining the flatness of the vertical direction of the knife gap; one end of the inclined scale is fixed on the horizontal scale, and the inclined scale has a certain angle with the vertical scale, and the angle size is determined by the type of the isolating switch to be detected; the inclined scale is used for measuring the single-pole opening distance of the knife gap and calculating the three-phase symmetry; the horizontal scale and the inclined scale are both provided with a vernier, and the vernier has a positioning function. The application has the functions of measurement and positioning, can realize the simultaneous measurement of the distance between the knife gap, the single-pole opening distance and the three-phase symmetry, can intuitively judge whether the parameters of the isolating switch meet the standards through the positioning mode, and can adjust the isolating switch to the position once the parameters do not meet the standards, so that the maintenance efficiency of the isolating switch is greatly improved.

Description

Technical Field

[0001] The invention relates to the field of isolating switch maintenance, and in particular to a fixable multi-point measuring ruler with a vernier. Background Art

[0002] Over time, disconnectors can develop defects such as contact overheating and poor contact, requiring maintenance personnel to inspect the disconnector body. The inspection process includes disassembly, inspection, replacement, and assembly, with parameter measurement and adjustment during the assembly process being crucial for quality inspection.

[0003] The data that needs to be measured during disconnector assembly include phase spacing, single-pole spacing, and three-phase synchronicity. The current method involves measuring each of these data points one by one with a steel ruler. This not only requires multiple measurements, but is also prone to one or two data points meeting the requirements while the third fails, requiring repeated readjustments. This process is extremely time-consuming. Furthermore, after installation, the disconnector is prone to tilting horizontally and vertically, making it difficult to level. Summary of the Invention

[0004] The existing manual measurement and debugging of data is not only labor-intensive, but also difficult to achieve in terms of quality, meeting the requirements for disconnector maintenance and debugging. This invention addresses these deficiencies by designing a compact, lightweight, and accurate disconnector maintenance and debugging tool. This tool is suitable for quickly testing various data, is portable, easy to operate, and requires minimal operator skill, effectively meeting disconnector maintenance requirements.

[0005] The present invention is achieved through the following technical solutions:

[0006] A fixable multi-point measuring ruler with a vernier, the measuring ruler comprising a horizontal ruler, a vertical ruler and an oblique ruler;

[0007] The horizontal ruler is used to measure the distance between the phases of the knife switch and to maintain the horizontal straightness of the knife switch;

[0008] One end of the vertical ruler is vertically connected to one end of the horizontal ruler, and the vertical ruler is used to maintain the straightness of the knife switch in the vertical direction;

[0009] One end of the inclined ruler is fixed on the horizontal ruler. There is a certain angle between the inclined ruler and the vertical ruler. The angle is determined by the type of the disconnector to be tested. The inclined ruler is used to measure the single-pole opening distance of the knife switch and calculate the three-phase synchronism.

[0010] Both the horizontal ruler and the oblique ruler are provided with cursors, which play a positioning role.

[0011] Before assembling the disconnector, the operator first moves the cursors on the horizontal ruler and the oblique ruler to the corresponding distances of the horizontal ruler and the oblique ruler according to the measurement requirements to realize the positioning function, and then installs the measuring ruler of the present invention on the disconnector, that is, fixes the two ends of the vertical ruler to the disconnector by bolts; the phase distance is the distance between the centers of the two-phase static contact seats of the disconnector, the horizontal ruler can directly measure the phase distance, and the cursor installed on the horizontal ruler plays a positioning role. If the center of the static contact seat is not at the position positioned by the cursor, the disconnector is adjusted to meet the requirements; the single-pole opening distance is the distance between the center of the static contact and the center of the moving contact when the disconnector is open. When the disconnector is open, the oblique ruler The single-pole opening distance can be measured, and the cursor installed on the inclined ruler plays a positioning role. If the center of the moving contact seat is not at the position located by the cursor, then adjust the disconnector to meet the requirements; when the disconnector is closed, when the moving and static contacts of one phase just touch, measure the distance between the centers of the moving and static contact seats of the other two phases. The larger distance is the three-phase synchronicity. When the disconnector is closed, the three-phase synchronicity can be obtained by observing the inclined ruler. In this way, the phase distance, single-pole opening distance and three-phase synchronicity can be measured simultaneously through the coordination between the horizontal ruler, vertical ruler and inclined ruler. At the same time, the cursor is equipped for positioning, and the cursor is used to judge whether the measuring points of the disconnector meet the standards. If not, adjust the disconnector.

[0012] Preferably, the horizontal ruler, vertical ruler and oblique ruler are all made of stainless steel.

[0013] Preferably, the thickness of the horizontal ruler, vertical ruler and oblique ruler is 2mm-3mm; the width of the horizontal ruler, vertical ruler and oblique ruler is 25mm-30mm.

[0014] Preferably, the length of the horizontal ruler is 700mm-750mm; the length of the vertical ruler is 510mm-560mm; and the length of the oblique ruler is 450mm-500mm.

[0015] Preferably, the opening of the cursor should be slightly larger than the thickness of the horizontal ruler and the oblique ruler by 0.2-0.3 mm; the width of the cursor is 5-5.5 mm; the front length of the cursor is 13-14 mm; the back length of the cursor is 3.5-4 mm; and the material thickness of the cursor is 1-1.5 mm.

[0016] Preferably, the vertical ruler is fixed to the terminal board of the disconnector by means of bolts, thereby achieving the goal of fixing the entire measuring ruler on the disconnector.

[0017] The present invention has the following advantages and beneficial effects:

[0018] The application discloses a fixed multi-point measuring ruler with vernier, which can simultaneously measure the distance between phases, single-pole opening distance and three-phase consistency through cooperation of the horizontal ruler, the vertical ruler and the inclined ruler, and is provided with the vernier for positioning. BRIEF DESCRIPTION OF DRAWINGS

[0019] The accompanying drawings, which are included to provide a further understanding of the embodiments of the application and are incorporated in and constitute a part of this application, illustrate embodiments of the application and together with the description serve to explain the principles of the application. In the drawings:

[0020] Figure 1 It is a front view of the fixed multi-point measuring ruler with vernier.

[0021] Figure 2 It is a side view of the fixed multi-point measuring ruler with vernier.

[0022] Figure 3 It is an installation schematic view of the fixed multi-point measuring ruler with vernier.

[0023] Markings in the drawings and corresponding names of parts:

[0024] 1-horizontal ruler, 2-vertical ruler, 3-inclined ruler, 4-vernier, 5-isolation switch. DETAILED DESCRIPTION

[0025] In order to make the purpose, technical scheme and advantages of the application more clear, the application is further described in detail below in combination with embodiments and drawings. The illustrative embodiments of the application and the description thereof are used to explain the application, and do not limit the application. EMBODIMENT

[0026] As shown in the drawings, a fixed multi-point measuring ruler with vernier comprises a horizontal ruler 1, a vertical ruler 2 and an inclined ruler 3. Figures 1-2 The horizontal ruler 1 is used for measuring the distance between phases of the knife switch, and maintaining the horizontal direction of the knife switch to be straight. The vertical ruler 2 is vertically connected to one end of the horizontal ruler, and is used for maintaining the vertical direction of the knife switch to be straight. The inclined ruler 3 is fixed to one end of the horizontal ruler, and has a certain angle with the vertical ruler 2, and the angle is determined by the type of the isolation switch 5 to be detected. The inclined ruler 3 is used for measuring the single-pole opening distance of the knife switch, and calculating the three-phase consistency. The horizontal ruler 1 and the inclined ruler 3 are both provided with the vernier 4, which is used for positioning.

[0027] The horizontal ruler 1 is 700mm long; the vertical ruler 2 is 510mm long; and the diagonal ruler 3 is 450mm long. The thickness of each of these rulers is 2mm; their widths are 25mm; the angle between diagonal ruler 3 and vertical ruler 2 is 52 degrees. The opening of cursor 4 should be slightly thicker than 2mm, but can be produced to be 2.2mm. The width of cursor 4 is 5mm. The front of cursor 4 is 13mm long; the back of cursor 4 is 3.5mm long; and the material thickness of cursor 4 is 1mm.

[0028] like Figure 3 As shown, before assembling the disconnector 5, the operator first positions the cursors 4 on the horizontal ruler 1 and the oblique ruler 3 to the specified distances according to the distance measurement requirements of GN19-10, and then installs the measuring ruler of this embodiment on the disconnector 5, that is, fixes the two ends of the vertical ruler 2 to the disconnector 5 by bolts; the phase distance is the distance between the centers of the two-phase static contact seats of the disconnector, the horizontal ruler can directly measure the phase distance, and the cursor installed on the horizontal ruler plays a positioning role. If the center of the static contact seat is not at the position where the cursor is positioned, the disconnector 5 is adjusted to meet the requirements; the single-pole opening distance is the distance between the center of the static contact and the center of the moving contact when the disconnector is open, When opening, the inclined ruler can measure the single-pole opening distance, and the cursor mounted on the ruler serves as a positioning tool. If the center of the moving contact seat is not where the cursor locates, the disconnector is adjusted to meet the requirements. When the disconnector is closed, when the moving and static contacts of one phase just touch, the distance between the centers of the moving and static contact seats of the other two phases is measured. The larger distance indicates the three-phase synchronicity. When the disconnector is closed, the three-phase synchronicity can be determined by observing the inclined ruler. In this way, the coordination of the horizontal ruler, vertical ruler, and inclined ruler can simultaneously measure the phase distance, single-pole opening distance, and three-phase synchronicity. A cursor is also provided for positioning. The cursor is used to determine whether each measurement point on the disconnector meets the requirements. If not, the disconnector is adjusted. This allows for rapid detection of whether the three phases of the disconnector are aligned, enabling accurate judgment and direct commissioning. This eliminates the need for post-adjustment measurement and reduces disconnector maintenance time.

[0029] The specific implementation methods described above further illustrate the objectives, technical solutions and beneficial effects of the present invention in detail. It should be understood that the above description is only a specific implementation method of the present invention and is not intended to limit the scope of protection of the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A fixed multi-point measuring ruler with a vernier, characterized in that: The measuring ruler includes a horizontal ruler, a vertical ruler and an oblique ruler; The horizontal ruler is used to measure the distance between the phases of the knife switch and to maintain the horizontal straightness of the knife switch; One end of the vertical ruler is perpendicularly connected to one end of the horizontal ruler, and the vertical ruler is used to maintain the straightness of the knife switch in the vertical direction; One end of the inclined ruler is fixed on the horizontal ruler. There is a certain angle between the inclined ruler and the vertical ruler. The angle is determined by the type of the disconnector to be tested. The inclined ruler is used to measure the single-pole opening distance of the knife switch and calculate the three-phase synchronism. Both the horizontal ruler and the oblique ruler are provided with cursors, which play a positioning role.

2. A fixable multi-point measuring ruler with a vernier according to claim 1, characterized in that: The horizontal ruler, vertical ruler and oblique ruler are all made of stainless steel.

3. The fixable multi-point measuring ruler with a vernier according to claim 1, characterized in that: The thickness of the horizontal ruler, vertical ruler and oblique ruler are all 2mm-3mm; the width of the horizontal ruler, vertical ruler and oblique ruler are all 25mm-30mm.

4. The fixable multi-point measuring ruler with a vernier according to claim 1, characterized in that: The length of the horizontal ruler is 700mm-750mm; the length of the vertical ruler is 510mm-560mm; and the length of the oblique ruler is 450mm-500mm.

5. The fixable multi-point measuring ruler with a vernier according to claim 1, characterized in that: The opening of the cursor is 0.2-0.3 mm larger than the thickness of the horizontal ruler and the oblique ruler; the width of the cursor is 5-5.5 mm; the front length of the cursor is 13-14 mm; the back length of the cursor is 3.5-4 mm; and the thickness of the cursor is 1-1.5 mm.

6. The fixable multi-point measuring ruler with a vernier according to claim 1, characterized in that: The vertical ruler is fixed to the wiring board of the isolating switch to be tested by means of bolts.

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