CN111981940B - Cable ranging tool - Google Patents
Cable ranging tool Download PDFInfo
- Publication number
- CN111981940B CN111981940B CN202010829383.9A CN202010829383A CN111981940B CN 111981940 B CN111981940 B CN 111981940B CN 202010829383 A CN202010829383 A CN 202010829383A CN 111981940 B CN111981940 B CN 111981940B
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- Prior art keywords
- cable
- connector
- fixing
- sliding rail
- sliding
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Links
- 239000004744 fabric Substances 0.000 claims description 6
- ISWSIDIOOBJBQZ-UHFFFAOYSA-N phenol group Chemical group C1(=CC=CC=C1)O ISWSIDIOOBJBQZ-UHFFFAOYSA-N 0.000 claims description 5
- 230000003068 static effect Effects 0.000 claims description 2
- 238000000034 method Methods 0.000 abstract description 3
- 238000005259 measurement Methods 0.000 description 19
- 239000000463 material Substances 0.000 description 5
- 230000005484 gravity Effects 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 2
- 238000012360 testing method Methods 0.000 description 2
- KXGFMDJXCMQABM-UHFFFAOYSA-N 2-methoxy-6-methylphenol Chemical compound [CH]OC1=CC=CC([CH])=C1O KXGFMDJXCMQABM-UHFFFAOYSA-N 0.000 description 1
- 229920000742 Cotton Polymers 0.000 description 1
- 239000004677 Nylon Substances 0.000 description 1
- 230000006978 adaptation Effects 0.000 description 1
- 230000003044 adaptive effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000007731 hot pressing Methods 0.000 description 1
- 238000003754 machining Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 229920001778 nylon Polymers 0.000 description 1
- 239000005011 phenolic resin Substances 0.000 description 1
- 229920001568 phenolic resin Polymers 0.000 description 1
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
- G01B5/00—Measuring arrangements characterised by the use of mechanical techniques
- G01B5/02—Measuring arrangements characterised by the use of mechanical techniques for measuring length, width or thickness
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
- B65H57/00—Guides for filamentary materials; Supports therefor
- B65H57/14—Pulleys, rollers, or rotary bars
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- A Measuring Device Byusing Mechanical Method (AREA)
Abstract
The embodiment of the invention discloses a cable ranging tool, which is used for measuring a cable, wherein the cable comprises a first connector and a second connector, the first connector and the second connector are positioned at two ends of the cable, and the cable ranging tool comprises: the base is provided with a sliding rail on the bearing surface of the base, and the side wall is provided with scales for indicating the length; the first fixing piece is fixedly connected to one end of the base and used for fixing the first connector; the second fixing piece is used for fixing the second connector and is arranged on the sliding rail in a sliding manner; the support piece is arranged on the sliding rail and used for supporting the cable. By adopting the method, the measuring error of the cable length is reduced, and the accuracy of cable ranging is improved.
Description
Technical Field
The invention relates to the field of machining, in particular to a cable ranging tool.
Background
When the cable length of the current connector is measured, the index requirement is mainly the distance between the tail clips of the two connectors, and the technical requirement is that the effective length of the cable is within 2000mm, and the error is +/-1%. The existing measuring method is that after the cable is directly unfolded on an operation platform, two ends of the cable are not provided with any fixing device, the middle of the cable is not supported on the operation platform, but the tail clamps at two ends of the cable are inconsistent in size, and the measured length data is inaccurate during acceptance.
Disclosure of Invention
In order to solve the problems, the invention discloses a cable ranging tool which can improve the measurement accuracy of the length between cable tail clamps of a butt-joint plug-in unit.
A cable range finding frock for measure the cable, the cable includes first connector and second connector, and first connector and second connector are located the cable both ends, include: the base is provided with a sliding rail on the bearing surface of the base, and the side wall is provided with scales for indicating the length; the first fixing piece is fixedly connected to one end of the base and used for fixing the first connector; the second fixing piece is used for fixing the second connector and is arranged on the sliding rail in a sliding manner; the support piece is arranged on the sliding rail and used for supporting the cable.
The technical scheme has the following beneficial effects: when the cable carries out length test, can realize the fixed of first connector through first mounting, can realize the fixed of second connector through the second mounting, fix the cable through first mounting and second mounting, when guaranteeing length measurement, the fixed not removal in position at cable both ends, the cable is straightened, improves length measurement's degree of accuracy. Meanwhile, as the second fixing piece can slide on the sliding rail, the measurement of multiple lengths of the cable can be realized, and the universality of the cable ranging tool is improved; and a supporting piece is arranged between the first connector and the second connector and is used for supporting the cable during measurement, so that measurement errors caused by falling of the cable due to gravity are reduced.
Optionally, the first fixing member includes: the first fixed stop block is fixedly connected to one end of the base; the openable fixing clamp is used for clamping the first connector and is fixedly connected to the first fixing stop block; the fastener is arranged at the openable end of the fixing clamp and used for fastening the openable fixing clamp.
Optionally, the fixing clip is made of phenolic cloth rod.
Optionally, the second fixing member includes: the sliding block and the second fixed stop block; the bottom surface of the sliding block is provided with a first sliding bearing which is matched with the sliding rail so as to enable the sliding block to slide in the sliding rail; the second fixed stop block is fixedly arranged on the top surface of the sliding block, and a groove is formed in the second fixed stop block and used for clamping the second connector.
Optionally, the second fixed stop further comprises: and the width adjusting unit is arranged inside the second stop block and is used for fixing second connectors with different diameters.
Optionally, the width adjusting unit is a U-shaped limiting block.
Optionally, a limiting lock catch is further arranged on the side face of the sliding block, and when the cable is straightened, the sliding block and the sliding rail are kept relatively static.
Optionally, the support comprises: at least one roller support and at least one roller; the bottom surface of the roller support frame is provided with a second sliding bearing which is matched with the sliding rail so as to enable the roller support frame to slide in the sliding rail; the gyro wheel is installed inside the gyro wheel support frame for support cable.
Optionally, a height adjusting unit is further installed between the bottom surface of the roller support frame and the second sliding bearing, and is used for adjusting the height of the support piece.
Drawings
In order to more clearly illustrate the embodiments of the invention or the technical solutions in the prior art, the drawings that are required in the embodiments or the description of the prior art will be briefly described, it being obvious that the drawings in the following description are only some embodiments of the invention, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
Fig. 1 is a schematic structural diagram of a cable ranging tool according to an embodiment of the present invention;
fig. 2 is a schematic view of a support structure according to an embodiment of the present invention.
Reference numerals:
100-base 200-first mount 2001-first mount clip 2002-clip 2003-fastener 2004-first screen screw 300-second mount 3001-slide 3002-second mount clip 3003-width adjustment unit 3004-limit lock 3005-pointer 3006-second screen screw 400-support 4001-roller support frame 4002-roller 4003-second slide bearing 4004-height adjustment unit
Detailed Description
The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
In the prior art, the length between the cable tail clamps of the butt connector is measured by adopting a mode of directly measuring the length by placing the cable tail clamps on an operation table, and errors are easy to occur during measurement due to different sizes of the two tail clamps. And the connectors at two ends are not fixed by a device, and the cable between the two tail clamps is not supported by a supporting structure, so that whether the cable is straightened during measurement is difficult to ensure, the final measurement result is influenced, and the final measurement error requirement cannot be met.
As shown in fig. 1, the invention discloses a cable ranging tool for measuring a cable, wherein the cable comprises a first connector and a second connector, the first connector and the second connector are positioned at two ends of the cable, and the cable ranging tool comprises: the base 100, the bearing surface of the base 100 is provided with a sliding rail, and the side wall is provided with scales for indicating the length; the first fixing piece 200, the first fixing piece 200 is fixedly connected to one end of the base 100, and is used for fixing the first connector; the second fixing piece 300 is used for fixing a second connector and is slidably arranged on the sliding rail; the support piece 400, the support piece 400 is located on the slide rail for support cable.
The invention is provided with the first fixing piece 200 on the base 100, the first fixing piece 200 is used for fixing a first connector of a cable, the sliding rail of the base 100 is provided with the second fixing piece 300, the second fixing piece 300 is used for fixing a second connector of the cable, and the second fixing piece 300 can freely slide in the sliding rail so as to adjust the measuring position according to the length of the cable and ensure that the cable performs position measurement under the condition of straightening. Meanwhile, since the second fixing member 300 can freely slide on the slide rail, testing of cables of various lengths can be achieved. The support 400 is disposed on the sliding rail, and can move freely on the sliding rail, so as to support the cable and keep the cable flat, and avoid the length measurement error caused by the falling of the cable due to gravity. The side of the base 100 can be pasted with the scale without installing a scale or marking the scale marks, and the pasting of the scale is more convenient and simple.
During assembly, the first connector of the cable is fixed on the first fixing piece 200, the tail part of the tail clamp of the first connector of the cable is properly adjusted to be aligned with the 0 scale mark, the cable is slowly straightened along the supporting piece 400, the position of the second fixing piece 300 is adjusted, the second connector of the cable is fixed on the second fixing piece 300, the tail part of the tail clamp of the second connector is flush with the pointer 3005, and then the scale mark of the pointer 3005 is read, so that the cable length data is obtained.
Compared with the prior art, the cable ranging tool provided by the embodiment of the invention is provided with the first fixing piece 200 matched with the first connector of the cable to fix the first connector of the cable, and the second fixing piece 300 matched with the second connector of the cable to fix the second connector of the cable, so that the fixing of two tail clamps with different sizes of the cable is realized. The second fixing piece can slide in the sliding rail to fix cables with different lengths. The supporting member 400 is arranged between the first fixing member 200 and the second fixing member 300 to support the cable, so that measurement errors caused by incapability of straightening due to cable falling are avoided.
As one possible implementation, as shown in fig. 1, the first fixing member 200 includes: the first fixed stop 2001, the first fixed stop 2001 is fixedly connected to one end of the base 100; an openable fixing clip 2002 for clamping the first connector, and fixedly connected to the first fixing stopper 2001; a fastener 2003, the fastener 2003 is provided at an openable end of the fixing clip 2002 for fastening the openable fixing clip 2002.
The first fixed stop 2001 is fixed on the base 100 through a first reticulate screw 2004 on the side, the first fixed stop is positioned on the outer side of the sliding rail, the position of the first fixed stop can be adjusted through the first reticulate screw 2004, and when the first reticulate screw 2004 is unscrewed, the first fixed stop 2001 is operated to move to a proper position along the base; when the first screen screw 2004 is screwed, the first fixing stopper 2001 is fixed in the final position. The fixing clamp 2002 is divided into an upper fixing clamp and a lower fixing clamp, the lower fixing clamp is fixedly connected with the bearing surface of the first fixing stop block 2001, the relative positions of the fixing clamp 2002 and the first fixing stop block 2001 are guaranteed, and the upper fixing clamp is movably connected with the lower fixing clamp. The fixing clip 2002 and the first fixing stop 2001 may be connected by a screw or may be riveted or welded, and the specific connection mode of the fixing clip 2002 and the first fixing stop 2001 is not limited in the present invention.
The upper fixing clamp is arranged on the lower fixing clamp and connected through a hinge type structure, the opening and closing movement of the fixing clamp 2002 is realized through the rotating pin, the opening and closing angle is 120 degrees at maximum, the assembly of the first cable connector is facilitated, and the contact surface of the upper fixing clamp and the lower fixing clamp is provided with a gap for clamping the first cable connector. A fastener 2003 is provided at the openable end of the fixing clip 2002 for fixing and adjusting the fitting height. The fastener 2003 may be a fixing knob or bolt, and the present invention is not limited to the specific type of fastener 2003.
During assembly, fastener 2003 is first unscrewed and the upper clamp of clamp 2002 is opened about the hinge to an angle that allows unobstructed access to the first connector of the cable. The first connector of the cable is then placed in the gap between the upper and lower clamps, and then the upper clamp of clamp 2002 is pressed down, the first connector is fixed in the gap formed by the upper and lower clamps, and fastener 2003 is tightened to fix clamp 2002 and adjust the height of the assembly.
As one possible implementation, the retaining clip 2002 is made of phenolic cloth rod.
The phenolic cloth rod is made of cotton cloth soaked with phenolic resin, and the phenolic cloth rod is formed by hot pressing of a forming die, has a round cross section, has high mechanical properties, and can avoid damaging the first connector during assembly. The material of the fixing clip provided by the embodiment of the invention is not limited to the above material, and any material with certain strength can be used in the invention.
As one possible implementation, as shown in fig. 1, the second fixing member 300 includes: a slider 3001 and a second fixed stopper 3002; the bottom surface of the sliding block 3001 is provided with a first sliding bearing, and the first sliding bearing is matched with the sliding rail so that the sliding block 3001 slides in the sliding rail; the second fixed stop 3002 is fixedly arranged on the top surface of the sliding block 3001, and a groove is formed in the second fixed stop 3002 and is used for clamping the second connector.
In this embodiment, the sliding rail is a T-shaped sliding rail groove, and the first sliding bearing is adapted to the T-shaped sliding rail groove, so that the sliding block 3001 can move freely in the sliding rail and is not easy to fall off. A pointer 3005 is fixedly connected to the side surface of the slider 3001 and is used for indicating scales so as to read cable length data. The fixing manner of the pointer 3005 on the slider 3001 may be screw connection or riveting, and the specific connection manner of the pointer 3005 and the slider 3001 is not limited in the present invention.
The connection mode of the second fixed stop 3002 and the sliding block 3001 may be screw connection or riveting, and the specific connection mode of the sliding block 3001 and the second fixed stop 3002 is not limited in the invention. The second fixed stop 3002 is used to limit the second connector.
As a possible implementation, as shown in fig. 1, the second fixed stop 3002 further includes: the width adjusting unit 3003, the width adjusting unit 3003 is installed inside the second block, and is used for fixing second connectors with different diameters.
As shown in fig. 1, the width adjusting unit 3003 is fixed by a second reticulation screw 3006, and screwing the second reticulation screw 3006 can reduce the inner diameter of the width adjusting unit 3003, so as to fix an adaptive second connector; the second reticulate screw 3006 is unscrewed, so that the diameter of the width adjusting unit 3003 can be increased, the fixing of the second connector which is matched with the width adjusting unit 3003 can be realized, the width adjusting unit 3003 can freely move in the second fixing stop 3002, and the fixing position of the second connector can be finely adjusted, so that the tail part of the tail clip of the second connector is aligned with the 0 scale mark.
As a possible implementation manner, as shown in fig. 1, the width adjustment unit 3003 is a U-shaped stopper.
The preferable material of the U-shaped limiting block can be ABS material, and the second connector can be prevented from being damaged. The U-shaped limiting block can be replaced according to the size of the tail clip, and the upper portion of the U-shaped limiting block is provided with an opening, so that the width adjusting function and the limiting function on the second connector can be realized. Through adjusting U type stopper, can finely tune the fixed position of the second connector of cable to obtain more accurate cable length reading.
As a possible implementation, as shown in fig. 1, a limiting lock 3004 is further provided on the side of the sliding block 3001, so that when the cable is straightened, the sliding block 3001 and the sliding rail are kept relatively stationary.
According to the requirement of measuring the cable, when the cable is well adjusted and installed to the tool, the limiting lock catch 3004 is used for limiting the sliding block 3001, and the relative position of the sliding block 3001 and the base 100 is determined.
As one possible implementation, as shown in fig. 2, the support 400 includes: at least one roller support frame 4001 and at least one roller 4002; the bottom surface of the roller support frame 4001 is provided with a second sliding bearing 4003, and the second sliding bearing 4003 is matched with the sliding rail so as to enable the roller support frame 4001 to slide in the sliding rail; the roller 4002 is installed inside the roller frame 4001 for supporting the cable.
The roller support frames 4001 can be provided with more cable size adjustment quantity, so that the flatness of the cables is ensured, and the effectiveness of measurement data is improved. The roller support frame 4001 is also provided with a roller shaft which is assembled to the roller support frame 4001 by pins for fixing and limiting. The roller 4002 is mounted on a roller shaft, on which the roller is radially movable. The roller 4002 is preferably made of nylon, and can protect the outer surface of the cable from being damaged by direct pulling. When assembled, after the first connector of the cable is fixed, the cable is slowly straightened by the roller 4002 on the cable supporting frame.
The bottom surface of gyro wheel support frame 4001 still is connected with the second slide bearing with the slide rail adaptation, can make gyro wheel support frame 4001 can free movement in the slide rail, and the second slide bearing makes the motion of whole frock more steady, and the noise is littleer when cable length detects.
As a possible implementation manner, as shown in fig. 2, a height adjusting unit 4004 is further installed between the bottom surface of the support frame 4001 of the roller 4002 and the second sliding bearing 4003, and is used for adjusting the height of the support 400.
As a preferred implementation, the height adjustment unit 4004 may be a footing screw, and a screw head of the footing screw has an external hexagonal structure, so that the footing screw can be manually adjusted, thereby adjusting the height of the roller support 4001.
The application method of the cable ranging tool provided by the embodiment of the invention comprises the following steps:
Unscrewing the fastener 2003, opening the fixing clamp 2002, placing the first connector of the cable into the fixing clamp 2002, fastening the fixing clamp 2002 by using the fastener 2003, and properly adjusting the tail part of the tail clamp of the first connector to be level with the 0 scale mark; slowly straighten the cable along the roller 4002 while adjusting the height adjusting unit 4004 to make the roller support frame 4001 to a proper height to level the cable; the sliding block 3001 of the second fixing piece 300 is adjusted and fixed, the second connector of the cable is clamped in the U-shaped limiting block, the second reticulate screw 3006 is unscrewed to adjust the U-shaped clamp to a proper position, the tail of the second connector tail clamp is enabled to be flush with the pointer 3005, the second reticulate screw 3006 is screwed to fix the position of the second connector, the limiting lock catch 3004 is used for straightening the cable again, and the scale of the pointer 3005 is read.
The technical scheme has the following beneficial effects: by arranging the first fixing piece 200 for fixing the first connector and the second fixing piece 300 for fixing the second connector, the positions of the two ends of the cable are fixed and not moved when the length measurement is ensured, and the accuracy of the length measurement of the cable is improved. The support piece 400 is arranged between the first connector and the second connector, so that the support of the middle part of the cable during measurement is ensured, the measurement error of the cable caused by falling due to gravity is reduced, the support piece 400 can be adjusted in number according to the size, the flatness of the cable is ensured, and the effectiveness of measurement data is improved.
The foregoing description of the embodiments has been provided for the purpose of illustrating the general principles of the invention, and is not meant to limit the scope of the invention, but to limit the invention to the particular embodiments, and any modifications, equivalents, improvements, etc. that fall within the spirit and principles of the invention are intended to be included within the scope of the invention.
Claims (5)
1. A cable range finding frock for measure the cable, the cable includes first connector and second connector, first connector with the second connector is located cable both ends, its characterized in that includes:
the base is provided with a sliding rail on the bearing surface of the base, and the side wall is provided with scales for indicating the length;
The first fixing piece is fixedly connected to one end of the base and used for fixing the first connector; the first fixing member includes: the first fixed stop block is fixedly connected to one end of the base; the openable fixing clamp is used for clamping the first connector and is fixedly connected to the first fixing stop block; the fastener is arranged at the openable end of the fixing clamp and used for fastening the openable fixing clamp;
The second fixing piece is used for fixing the second connector and is slidably arranged on the sliding rail; the second fixing member includes: the sliding block and the second fixed stop block; the bottom surface of the sliding block is provided with a first sliding bearing which is matched with the sliding rail so as to enable the sliding block to slide in the sliding rail; the second fixed stop block is fixedly arranged on the top surface of the sliding block, and a groove is formed in the second fixed stop block and used for clamping the second connector;
The support piece is arranged on the sliding rail and used for supporting the cable; the support includes: at least one roller support and at least one roller; the bottom surface of the roller support frame is provided with a second sliding bearing which is matched with the sliding rail so as to enable the roller support frame to slide in the sliding rail; the roller is arranged in the roller support frame and is used for supporting the cable;
And a height adjusting unit is further arranged between the bottom surface of the roller support frame and the second sliding bearing and used for adjusting the height of the support piece.
2. The cable ranging tooling of claim 1, wherein:
The fixing clamp is made of phenolic cloth rods.
3. The cable ranging tooling of claim 1, wherein the second fixed stop further comprises:
the width adjusting unit is arranged inside the second fixing stop block and used for fixing second connectors with different diameters.
4. A cable ranging tooling according to claim 3, wherein:
the width adjusting unit is a U-shaped limiting block.
5. The cable ranging tooling of claim 1, wherein:
And the side surface of the sliding block is also provided with a limiting lock catch, so that the sliding block and the sliding rail are kept relatively static when the cable is straightened.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010829383.9A CN111981940B (en) | 2020-08-18 | 2020-08-18 | Cable ranging tool |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010829383.9A CN111981940B (en) | 2020-08-18 | 2020-08-18 | Cable ranging tool |
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| Publication Number | Publication Date |
|---|---|
| CN111981940A CN111981940A (en) | 2020-11-24 |
| CN111981940B true CN111981940B (en) | 2024-05-28 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010829383.9A Active CN111981940B (en) | 2020-08-18 | 2020-08-18 | Cable ranging tool |
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| CN (1) | CN111981940B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112683213B (en) * | 2020-12-30 | 2022-10-18 | 季华科技有限公司 | Wire length detection system and method |
| CN118376156B (en) * | 2024-06-20 | 2024-08-23 | 青岛鑫硕包装材料有限公司 | Environment-friendly carton size measuring device and measuring method |
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| CN207832157U (en) * | 2018-03-05 | 2018-09-07 | 湖南省凯峰亚明电线电缆有限公司 | A kind of electric wire length metering device |
| KR20190071103A (en) * | 2017-12-14 | 2019-06-24 | 대한전선 주식회사 | Precision measuring device of cable snake |
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| CN210892928U (en) * | 2019-09-27 | 2020-06-30 | 广东电网有限责任公司 | Cable opening measuring scale |
| CN211085029U (en) * | 2019-11-27 | 2020-07-24 | 嘉兴恒创电力设计研究院有限公司嘉善分公司 | Channel cable length measuring device |
| CN212274811U (en) * | 2020-08-18 | 2021-01-01 | 山西汾西重工有限责任公司 | Cable ranging tool |
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2020
- 2020-08-18 CN CN202010829383.9A patent/CN111981940B/en active Active
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105783644A (en) * | 2014-12-18 | 2016-07-20 | 泰科电子(上海)有限公司 | Length measuring device and method |
| CN206440254U (en) * | 2017-01-24 | 2017-08-25 | 大同煤矿集团雁崖煤业有限公司 | A kind of cable automatic range unit |
| KR20190071103A (en) * | 2017-12-14 | 2019-06-24 | 대한전선 주식회사 | Precision measuring device of cable snake |
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| CN212274811U (en) * | 2020-08-18 | 2021-01-01 | 山西汾西重工有限责任公司 | Cable ranging tool |
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| Publication number | Publication date |
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| CN111981940A (en) | 2020-11-24 |
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