High-altitude power transmission line wire or ground wire crimping pipe measuring tool

Abstract

The invention relates to a high-altitude power transmission line wire or ground wire crimping pipe measuring tool, and the tool comprises two buckle bases which can be clamped on a crimping pipe to be measured; the two ends of the sliding rail rod can be installed on the two buckle bases respectively; the distance measuring part comprises a sliding rail lantern ring and a graduated scale; the slide rail lantern ring is arranged on the slide rail rod in a sleeving manner and can slide on the slide rail rod; a ruler passing waist groove is fixedly formed in the outer surface of the sliding rail lantern ring, and the graduated scale can penetrate through the ruler passing waist groove; and the graduated scale can be in contact with a to-be-tested crimping pipe after penetrating through the over-late waist groove and is perpendicular to the slide rail rod. The reading of the graduated scale is observed when the slide rail lantern ring slides from one end to the other end of the slide rail, and if the positive and negative reading of the graduated scale are smaller than 2% of the length of the to-be-detected crimping pipe during the whole sliding period, the to-be-detected crimping pipe is detected to be qualified. The scheme is convenient to use, measurement can be completed by a single person, repeated measurement is facilitated, and the measurement accuracy is improved.

Description

Technical Field

[0001] The invention relates to the technical field of bending degree measuring tools, in particular to a measuring tool for crimping a pipe of a conductor or a ground wire of an aerial power transmission line. Background Art

[0002] In the quality inspection and acceptance of power transmission lines and commissioning, we often encounter bending of the crimping tubes due to violent construction or uneven force between the crimping tube and the crimping film during the crimping process. The crimping tubes are a must-measure item during line acceptance.

[0003] After crimping, the crimping tube should meet the requirements of the overhead transmission line construction and acceptance specifications. The curvature of the crimping tube should not exceed 2%. If it exceeds 2%, it should be straightened if it can be straightened. If it cannot be straightened, it should be disconnected and crimped again. At present, the tool for measuring the curvature of the crimping tube during acceptance is mainly a steel tape measure plus a thin rope. The length between the two ends of the crimping tube is measured by a thin rope, and then the distance from the farthest point of the curvature to the thin rope is measured with a steel tape measure. Finally, it is calculated whether the curvature of the crimping tube meets the requirements of the acceptance specifications. The above methods for measuring the curvature of the crimping tube are inaccurate and prone to errors. The thin rope measurement is relatively accurate, but it is impossible to read. There are many variable factors during repeated measurements, and it is difficult to control the variables; the steel tape measure is convenient for measuring and reading, but there are errors in the operation of different people, and the selection of different measurement points leads to inconsistent standards; all of them will cause errors in the calculation of the curvature of the crimping tube. In the future, the crimping tube may break or the conductor may be unevenly stressed and fall out of the crimping tube during line operation. Therefore, a new tool is needed to measure the crimping tube during the acceptance process to ensure that the curvature of the crimping tube meets the requirements of the acceptance specifications. Summary of the invention

[0004] In order to solve the above-mentioned deficiencies of the prior art, the present invention provides a high-altitude power transmission line conductor or ground wire crimping tube measuring tool, which realizes the control variable by providing a base that can be fixed on the crimping tube and a sliding guide rail fixed on the base, and then uses a sliding setting to install a scale on the sliding guide rail for measurement; the detection accuracy and detection efficiency are increased. The technical solution of the present invention to achieve the above-mentioned purpose is:

[0005] High-altitude power transmission line conductor or ground wire crimping pipe measurement tool, including:

[0006] There are two snap-on bases, which can be snapped onto the compression tube to be tested;

[0007] The two ends of the slide rail rod can be respectively mounted on the two buckle bases;

[0008] The distance measuring part includes a slide rail ring and a scale; the slide rail ring is sleeved on the slide rail rod and can slide on the slide rail rod; the outer surface of the slide rail ring is fixedly provided with a scale waist groove, and the scale can pass through the scale waist groove; after passing through the waist groove, the scale can contact the pressure pipe to be measured and be perpendicular to the slide rail rod.

[0009] Furthermore, one end of the slide rail rod is a sphere, and the other end is provided with an external thread; the snap base includes a snap base A and a snap base B, the snap base A is provided with a ball head mounting compartment, and a through hole is provided on one side of the ball head mounting portion, and the through hole diameter is larger than the diameter of the slide rail rod and smaller than the diameter of the sphere at the end of the slide rail rod; the snap base B is provided with a threaded through hole, and the threaded through hole is used in conjunction with one end of the slide rail rod provided with an external thread; the end of the slide rail rod provided with an external thread passes through the through hole of the ball head mounting portion on the snap base A and is threadedly connected with the threaded through hole provided on the snap base B.

[0010] Furthermore, the slide rail rod is a telescopic sleeve rod structure, and the outer surface of the inner sleeve rod is provided with scales.

[0011] Furthermore, the buckle base is configured as a flange buckle; and a rubber pad is provided on the inner surface of the buckle base.

[0012] Furthermore, the buckle base, the slide rail rod, and the distance measuring part are all made of aluminum alloy.

[0013] When in use, the end of the slide rail rod 3 with external threads is passed through the through hole of the ball head mounting part on the snap base A1, and then the slide rail collar 4 is put on, and then it is threadedly connected with the threaded through hole opened on the snap base B2, and then the snap base is fixedly clamped on the compression tube 6, and the length of the compression tube 6 to be tested is read according to the scale on the outer surface of the inner sleeve rod. Then, the scale 5 is passed through the ruler waist groove on the slide rail collar 4, and the slide rail collar 4 is moved to the top of the compression tube 6 to be tested farthest from the slide rail rod 3, that is, the point with the largest curvature, and then the scale 5 is passed through the ruler waist groove to measure the distance between the maximum curvature point of the compression tube 6 to be tested and the slide rail rod 3, and finally, according to the distance standard between the maximum curvature point corresponding to the length of the compression tube 6 to be tested and the slide rail rod 3, it is judged whether the curvature of the compression tube 6 to be tested is qualified. The rail collar 4 slides from one end of the rail rod 3 to the other end, and the scale 5 reading is observed during the sliding period. If the positive and negative readings of the scale 5 are less than 2% of the length of the pressure-connecting tube 6 to be tested during the entire sliding period, the pressure-connecting tube 6 to be tested is qualified.

[0014] Compared with the prior art, the present invention has the following advantages:

[0015] It is easy to use. Compared with the existing technology where one person pulls the wire and the other measures the distance, a single person can complete the measurement. The measurement accuracy is improved because the snap base is fixed on the sub-pressure pipe to be measured during use, so that the two end points are stable and will not move. The measurement personnel only need to adjust the distance measuring part to get the desired data, control the variables, facilitate multiple measurements, and improve the measurement accuracy. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the three-dimensional structure of an embodiment of the present invention;

[0017] Figure 2 A schematic diagram of a three-dimensional structure used in an embodiment of the present invention;

[0018] Figure 3 This is a schematic diagram of the use status of an embodiment of the present invention;

[0019] Figure 4 It is an exploded diagram of the structure of an embodiment of the present invention;

[0020] Figure 5 It is a schematic diagram of a three-dimensional structure from another angle of an embodiment of the present invention;

[0021] Figure 6 It is a schematic diagram of a buckle base of a flange buckle according to an embodiment of the present invention;

[0022] Figure 7 A schematic diagram of a usage scenario of an embodiment of the present invention;

[0023] In the figure:

[0024] 1—Snap-on base A; 2—Snap-on base B; 3—Slide rail rod, 4—Slide rail ring; 5—Scale;

[0025] 6—Compression fitting. DETAILED DESCRIPTION

[0026] like Figure 1-7 As shown, the embodiments of the present invention are as follows:

[0027] The transmission line crimping tube 6 measuring tool comprises a snap base, a slide rail rod 3 and a distance measuring part.

[0028] There are two snap-on bases, snap-on base A1 and snap-on base B2, which can be snap-on on the pressure pipe 6 to be tested; the snap-on base is a flange snap-on; a rubber pad is provided on the inner surface of the snap-on base. The inner diameter of the snap-on base is 40mm, the width is 7mm, and the thickness is 1.5mm.

[0029] The slide rail rod 3 is a telescopic sleeve rod structure, and the outer surface of the inner sleeve rod is provided with scales. The total length is 250mm and the diameter is 7mm. The two ends of the slide rail rod 3 can be respectively set and installed on two snap bases. One end of the slide rail rod 3 is a sphere, and the other end is provided with an external thread. A ball head mounting compartment is provided on the snap base A1, and a through hole is provided on one side of the ball head mounting part. The diameter of the through hole is larger than the diameter of the slide rail rod 3 and smaller than the diameter of the ball at the end of the slide rail rod 3; a threaded through hole is provided on the snap base B2, and the threaded through hole is used in conjunction with one end of the slide rail rod 3 provided with an external thread; one end of the slide rail rod 3 provided with an external thread passes through the through hole of the ball head mounting part on the snap base A1 and is threadedly connected with the threaded through hole provided on the snap base B2.

[0030] The distance measuring part includes a slide rail collar 4 and a scale 5; the slide rail collar 4 is sleeved on the slide rail rod 3 and can slide on the slide rail rod 3; the slide rail collar 4 has a diameter of 7mm, a width of 7mm, and a thickness of 1.5mm. A scale waist groove is fixedly installed on the outer surface of the slide rail collar 4, and the scale 5 can pass through the scale waist groove; after passing through the waist groove, the scale 5 can contact the pressure pipe 6 to be measured and be perpendicular to the slide rail rod 3. The waist groove is 5mm long, 4mm wide, and has a movable gap of 1mm. The scale 5 is 50mm long, 4mm wide, and 1mm high.

[0031] The materials of the snap base, the slide rail rod 3 and the distance measuring part are all made of aluminum alloy.

[0032] When in use, the end of the slide rail rod 3 is passed through the through hole of the ball head mounting part on the snap base A1, and then the slide rail collar 4 is put on, and then it is threadedly connected with the threaded through hole opened on the snap base B2, and then the snap base is fixedly snapped on the compression tube 6, and the length of the compression tube 6 to be tested is read according to the scale on the outer surface of the inner sleeve rod. Then the scale 5 is passed through the ruler waist groove on the slide rail collar 4, and the slide rail collar 4 is moved to the top of the compression tube 6 to be tested farthest from the slide rail rod 3, that is, the point with the largest curvature, and then the scale 5 is passed through the ruler waist groove to measure the distance between the maximum curvature point of the compression tube 6 to be tested and the slide rail rod 3, and finally, according to the distance standard between the maximum curvature point corresponding to the length of the compression tube 6 to be tested and the slide rail rod 3, it is judged whether the curvature of the compression tube 6 to be tested is qualified. The rail collar 4 slides from one end of the rail rod 3 to the other end, and the scale 5 reading is observed during the sliding period. If the positive and negative readings of the scale 5 are less than 2% of the length of the pressure-connecting tube 6 to be tested during the entire sliding period, the pressure-connecting tube 6 to be tested is qualified.

[0033] It should be understood that the above specific embodiments of the present invention are only used to illustrate or explain the principles of the present invention, and do not constitute a limitation of the present invention. Therefore, any modifications, equivalent substitutions, improvements, etc. made without departing from the spirit and scope of the present invention should be included in the protection scope of the present invention. In addition, the appended claims of the present invention are intended to cover all changes and modifications that fall within the scope and boundaries of the appended claims, or the equivalent forms of such scope and boundaries.

Claims

1. A measuring tool for crimping pipes for overhead power transmission line conductors or ground wires, characterized in that: include: Two snap-on bases are provided, which can be snap-connected to the compression tube (6) to be tested; The two ends of the slide rail rod (3) can be respectively mounted on the two snap-on bases; The distance measuring part comprises a slide rail collar (4) and a scale (5); the slide rail collar (4) is sleeved on the slide rail rod (3) and can slide on the slide rail rod (3); a scale waist groove is fixedly arranged on the outer surface of the slide rail collar (4), and the scale (5) can pass through the scale waist groove; after passing through the waist groove, the scale (5) can contact the pressure pipe (6) to be measured and be perpendicular to the slide rail rod (3).

2. The high-altitude power transmission line conductor or ground wire crimping tube measuring tool as claimed in claim 1, characterized in that: One end of the slide rail rod (3) is a sphere, and the other end is provided with an external thread; the snap base comprises a snap base A (1) and a snap base B (2); the snap base A (1) is provided with a ball head mounting compartment, and a through hole is provided on one side of the ball head mounting portion, the diameter of the through hole is larger than the diameter of the slide rail rod (3) and smaller than the diameter of the ball at the end of the slide rail rod (3); the snap base B (2) is provided with a threaded through hole, and the threaded through hole is used in conjunction with one end of the slide rail rod (3) provided with an external thread; the end of the slide rail rod (3) provided with an external thread passes through the through hole of the ball head mounting portion on the snap base A (1) and is threadedly connected with the threaded through hole provided on the snap base B (2).

3. The high-altitude power transmission line conductor or ground wire crimping tube measuring tool as claimed in claim 1, characterized in that: The slide rail rod (3) is a telescopic sleeve rod structure, and the outer surface of the inner sleeve rod is provided with scales.

4. The high-altitude power transmission line conductor or ground wire crimping tube measuring tool as claimed in claim 1, characterized in that: The buckle base is configured as a flange buckle; and a rubber pad is provided on the inner surface of the buckle base.

5. The high-altitude power transmission line conductor or ground wire crimping tube measuring tool as claimed in claim 1, characterized in that: The buckle base, the slide rail rod (3) and the distance measuring part are all made of aluminum alloy.

6. A measuring method based on the high-altitude power transmission line conductor or ground wire crimping tube measuring tool according to claim 1, characterized in that: The following steps are involved: First, the buckle base is clamped on the two ends of the pressure-bearing tube (6) to be tested, and the length of the pressure-bearing tube (6) to be tested is measured; then the slide rail ring (4) is slid from one end of the slide rail rod (3) to the other end, and the scale (5) reading is observed during the sliding period. If the positive and negative readings of the scale (5) during the entire sliding period are less than 2% of the length of the pressure-bearing tube (6) to be tested, the pressure-bearing tube (6) to be tested is qualified.

Images