CN114509606A - Resistance tester for cable convenient to carry - Google Patents
Resistance tester for cable convenient to carry Download PDFInfo
- Publication number
- CN114509606A CN114509606A CN202210137898.1A CN202210137898A CN114509606A CN 114509606 A CN114509606 A CN 114509606A CN 202210137898 A CN202210137898 A CN 202210137898A CN 114509606 A CN114509606 A CN 114509606A
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- sliding
- ring
- ring body
- resistance tester
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R27/00—Arrangements for measuring resistance, reactance, impedance, or electric characteristics derived therefrom
- G01R27/02—Measuring real or complex resistance, reactance, impedance, or other two-pole characteristics derived therefrom, e.g. time constant
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R1/00—Details of instruments or arrangements of the types included in groups G01R5/00 - G01R13/00 and G01R31/00
- G01R1/02—General constructional details
- G01R1/04—Housings; Supporting members; Arrangements of terminals
- G01R1/0408—Test fixtures or contact fields; Connectors or connecting adaptors; Test clips; Test sockets
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/50—Photovoltaic [PV] energy
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- General Physics & Mathematics (AREA)
- Investigating Strength Of Materials By Application Of Mechanical Stress (AREA)
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Abstract
The invention relates to the technical field of cable production, in particular to a portable resistance tester for cables, which comprises a main body, wherein the top of the main body is rotatably connected with a cover plate, sliding grooves are formed in two sides of the cover plate, two ends of the interior of each sliding groove are connected with sliding blocks in a sliding mode, a stud is rotatably arranged in the middle of one side of each sliding block, an installation block is arranged on the outer side of each stud, and fixing rings are fixed on two sides of the interior of the cover plate. The second ring body is rotated to enable the second ring body, the first ring body and the fixed ring to rotate relatively, the gear drives the rotating column to rotate under the mutual matching effect of the rack and the gear, the rotating column drives the first conical tooth to rotate, the second conical tooth drives the screw to rotate under the mutual matching effect of the first conical tooth and the second conical tooth, and the extrusion cylinder gradually extends to extrude the rubber sleeve under the mutual limiting effect of the screw and the extrusion cylinder and the mutual limiting effect of the extrusion cylinder and the sliding groove, so that the fixation of the cable is completed.
Description
Technical Field
The invention relates to the technical field of cable production, in particular to a portable resistance tester for cables.
Background
The resistance tester is widely applied to occasions such as electrical safety inspection and grounding engineering completion inspection, has many types, comprises a grounding resistance tester, an insulation resistance tester, a direct current resistance measuring instrument, a surface resistance tester and a loop resistance tester, and needs to be sampled and detected in cable production, so that a plurality of cable manufacturers introduce the portable resistance tester for cables.
But present portable's resistance tester for cable is inconvenient when using, fixes the cable, and when measuring the cable, the cable outside parcel has the rubber inconvenient to measure it simultaneously.
Disclosure of Invention
The invention aims to solve the problems that in the prior art, cables are inconvenient to fix, and rubber is wrapped outside the cables to be inconvenient to measure when the cables are measured, and provides a portable resistance tester for the cables.
In order to achieve the purpose, the invention adopts the following technical scheme:
the design is a portable resistance tester for cables, which comprises a main body, wherein the top of the main body is rotatably connected with a cover plate, sliding grooves are formed in two sides of the cover plate, sliding blocks are connected to two ends inside the sliding grooves in a sliding mode, a stud is rotatably arranged in the middle position of one side of each sliding block, an installation block is arranged on the outer side of each stud, fixing rings are fixedly arranged on two sides inside the cover plate, one side of each fixing ring is rotatably connected with a second ring body, one side of each second ring body is rotatably connected with a first ring body, one side of each first ring body is provided with a limiting ring, a rack is arranged on the inner wall of each limiting ring, one side of each second ring body is uniformly and rotatably connected with a rotary column, a gear matched with the rack is arranged at one end of the rotary column, a first conical tooth is fixedly arranged at the other end of the rotary column, a screw rod is rotatably connected inside the second ring body, and a second conical tooth meshed with the first conical tooth is arranged at one end of the screw rod, the inner wall of the second circle body is provided with the sliding tray, the outside of screw rod is connected with through the screw thread rotation and is mutually supported the recipient with the sliding tray, the bottom of installation piece is provided with the installation circle, and the inner wall of installation circle is provided with the electromagnetism slide rail, the inside sliding connection of electromagnetism slide rail has the electromagnetism slider, and one side of electromagnetism slider is fixed with the installation storehouse, the inside in installation storehouse is provided with the spread groove, and the inside of spread groove is fixed with first reset spring, the inside of installation storehouse 30 is connected with erection column 43 through the screw thread rotation, and the inside of erection column 43 is provided with cavity 35, one side of erection column 43 is fixed with rotates storehouse 42, first reset spring 32 is fixed with limiting plate 34 to the end, and one side of limiting plate 34 be fixed with the cutting knife 36 that rotates storehouse 42 sliding connection.
Preferably, the inside of apron rotates and is connected with the rolling dish, and the front surface of apron evenly is provided with the jack, the jack is corresponding with the retainer plate.
Preferably, one side of the sliding block is provided with limiting columns on two sides of the stud, and a thread groove is formed in the mounting block.
Preferably, the top of the mounting block is slidably connected with a pressing block, sliding grooves are formed in two sides of the pressing block, a second return spring is mounted inside the sliding grooves, a sliding block matched with the sliding grooves is fixed at the tail end of the second return spring, the sliding block is fixedly connected with the mounting block, a through hole is formed in the outer side of the stud and corresponds to the fixing ring, a detection head is mounted at the bottom of the pressing block, and a rotating button is arranged at the tail end of the stud.
Preferably, the inside of main part is provided with the detector, and one side of the inside of main part is provided with places the chamber, the top of detector is provided with the connecting wire, and the end of connecting wire is connected with the detection head.
Preferably, the inner wall of the second ring body is provided with a rubber sleeve, one side of the second ring body is provided with a limiting groove matched with the limiting ring, and the first ring body is fixedly connected with the cover plate.
Preferably, the limit plate 34 is slidably connected with the cavity 35, and the diameter of the inner cavity of the rotary bin 42 is smaller than that of the limit plate 34.
Preferably, the number of the extrusion containers is multiple groups, and the cross sections of the multiple groups of the extrusion containers and the sliding grooves are connected into a square.
The invention provides a portable resistance tester for cables, which has the beneficial effects that:
1. through rotating the second circle body for relative rotation takes place between second circle body and the first circle body and the retainer plate, under the effect of rack and gear mutually supporting, the gear drives the column spinner and rotates, the column spinner drives first toper tooth and rotates, under the effect of first toper tooth and second toper tooth mutually supporting, second toper tooth drives the screw rod and rotates, mutually support at screw rod and recipient, under recipient and the mutual spacing effect of sliding tray, the recipient extends the extrusion rubber sleeve gradually, thereby accomplish the fixed to the cable.
2. Under the slider and the spout effect of mutually supporting through setting up, adjust the distance between two sets of installation pieces, later rotatory rotation storehouse, under the effect of screw thread, adjust the distance between rotation storehouse and the installation storehouse, later start electromagnetism slider and electromagnetism spout, electromagnetism slider drives the installation storehouse and rotates, under inertial effect, a reset spring is tensile, the inside inner wall in storehouse is rotated in the spacing conflict, the cutting knife stretches out the rubber to the cable outside is right, make it use the cable of different thickness and rubber thickness, thereby make the detection head and the copper line contact of pressing the briquetting bottom, accomplish the measurement, when taking a sample to it, after the rubber is accomplished in the cutting, repeat above-mentioned step, adjust the distance between installation storehouse and the rotation storehouse once more, cut off the inside copper line of cable, thereby detain the sample in the inside of main part.
Drawings
Fig. 1 is a schematic diagram of an overall structure of a portable resistance tester for cables according to the present invention;
FIG. 2 is a schematic diagram of a portable reinforcing ring of a resistance tester for cables according to the present invention;
FIG. 3 is a schematic view of a portable resistance tester for cables according to the present invention;
FIG. 4 is a schematic structural diagram of a portable cable resistance tester mounting block according to the present invention;
FIG. 5 is a schematic structural diagram of a portable resistance tester cutter for cables according to the present invention;
fig. 6 is an enlarged view of a portable resistance tester a for cables according to the present invention.
In the figure: 1. a main body; 2. a cover plate; 3. a jack; 4. a chute; 5. a slider; 6. a winding disc; 7. a limiting column; 8. a stud; 9. mounting blocks; 10. a stationary ring; 11. a rotation knob; 12. a detector; 13. a placement chamber; 14. a first ring body; 15. a second ring body; 16. a rubber sleeve; 17. a limiting ring; 18. a rack; 19. a gear; 20. an extrusion cylinder; 21. a sliding groove; 22. a limiting groove; 23. a spin column; 24. a first tapered tooth; 25. second tapered teeth; 26. a screw; 27. a screw groove; 28. an electromagnetic slide rail; 29. an electromagnetic slider; 30. installing a bin; 31. installing a ring; 32. a first return spring; 33. connecting grooves; 34. a limiting plate; 35. a cavity; 36. a cutting knife; 37. a pressing block; 38. a sliding groove; 39. a second return spring; 40. a slider; 41. a through hole; 42. rotating the bin; 43. and (7) mounting the column.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments.
Referring to fig. 1-6, a portable resistance tester for cables comprises a main body 1, a cover plate 2 is rotatably connected to the top of the main body 1, sliding grooves 4 are formed in two sides of the cover plate 2, sliding blocks 5 are slidably connected to two ends of the inner portion of the sliding grooves 4, a stud 8 is rotatably arranged in the middle of one side of each sliding block 5, an installation block 9 is arranged on the outer side of each stud 8, fixing rings 10 are fixed to two sides of the inner portion of the cover plate 2, a second ring body 15 is rotatably connected to one side of each fixing ring 10, a first ring body 14 is rotatably connected to one side of each second ring body 15, a limiting ring 17 is arranged on one side of each first ring body 14, a rack 18 is arranged on the inner wall of each limiting ring 17, a rotary column 23 is uniformly rotatably connected to one side of each second ring body 15, a gear 19 mutually matched with the rack 18 is arranged at one end of the rotary column 23, first conical teeth 24 are fixed at the other end of the rotary column 23, a screw 26 is rotatably connected inside the second ring body 15, one end of the screw 26 is provided with a second tapered tooth 25 engaged with the first tapered tooth 24, the inner wall of the second ring body 15 is provided with a sliding groove 21, the outer side of the screw 26 is rotatably connected with an extrusion cylinder 20 matched with the sliding groove 21 through threads, the bottom of the mounting block 9 is provided with a mounting ring 31, the inner wall of the mounting ring 31 is provided with an electromagnetic slide rail 28, the inside of the electromagnetic slide rail 28 is slidably connected with an electromagnetic slider 29, one side of the electromagnetic slider 29 is fixed with a mounting bin 30, the inside of the mounting bin 30 is provided with a connecting groove 33, the inside of the connecting groove 33 is fixed with a first return spring 32, the inside of the mounting bin 30 is rotatably connected with a mounting column 43 through threads, the inside of the mounting column 43 is provided with a cavity 35, one side of the mounting column 43 is fixed with a rotating bin 42, a limiting plate 34 is fixed at the tail end of the first return spring 32, and a cutting knife 36 which is connected with the rotating bin 42 in a sliding way is fixed on one side of the limit plate 34.
According to the invention, by rotating the second ring body 15, under the mutual matching action of the rack 18 and the gear 19, the gear 18 drives the rotating column 23 to rotate, the rotating column 23 drives the first conical teeth 24 to rotate, under the mutual matching action of the first conical teeth 24 and the second conical teeth 25, the second conical teeth 25 drive the screw 26 to rotate, under the mutual matching action of the screw 26 and the extrusion barrel 20, and the mutual limiting action of the extrusion barrel 20 and the sliding groove 21, the extrusion barrel 20 gradually extends to extrude the rubber sleeve 26, so that the fixation of the cable is completed, and the steps are repeated to fix the other end of the cable.
Wherein, the inside of apron 2 rotates and is connected with rolling dish 6, and the front surface of apron 2 evenly is provided with jack 3, and jack 3 is corresponding with retainer plate 10, and one side of slider 5 is located the both sides of double-screw bolt 8 and is provided with spacing post 7, and the inside of installation piece 9 is provided with the thread groove 27, and the end of double-screw bolt 8 is provided with knob 11.
The jack 3 through setting up is convenient for the cable to insert the inside of apron 2, and the spacing post 7 of setting is convenient for carry on spacingly to installation piece 9 to under the effect of screw groove 27 and double-screw bolt 8 mutually supporting, rotate knob 11, thereby be convenient for remove the position of installation piece 9, the convenience is detected different groups of cables.
Wherein, the top sliding connection of installation piece 9 presses the briquetting 37, and the both sides of pressing the briquetting 37 connect and be provided with the sliding tray 38, the internally mounted of sliding tray 38 has second reset spring 39, and the end of second reset spring 39 is fixed with the sliding block 40 with sliding tray 38 mutually supported, sliding block 40 and installation piece 9 fixed connection, the outside of double-screw bolt 8 is provided with through-hole 41, and through-hole 41 is corresponding with retainer plate 10, press the bottom of briquetting 37 to install and detect the head, the inside of main part 1 is provided with detector 12, and one side of main part 1 inside is provided with places chamber 13, the top of detector 12 is provided with the connecting wire, and the end of connecting wire is connected with detecting the head.
According to pressing down the pressing block 7 through setting up and pressing, drive and detect the head and pass downwards, the patchhole that 28 surfaces of electromagnetism slide rails were seted up gets into the copper line contact of through-hole and cable, later detects the head and will detect data and show through the inside of connecting wire with data transmission to detector 12, and the chamber 13 of placing that sets up is convenient for deposit the part.
The inner wall of the second ring body 15 is provided with a rubber sleeve 16, one side of the second ring body 15 is provided with a limiting groove 22 matched with the limiting ring 17, the first ring body 14 is fixedly connected with the cover plate 2, the number of the extrusion containers 20 is multiple, and the cross sections of the multiple groups of extrusion containers 20 and the sliding grooves 21 are connected into a square shape.
Mutually support through spacing collar 17 and spacing groove 22 that set up, first circle body 14 and apron 2 fixed connection simultaneously to when rotating second circle body 15, make first circle body 14 and second circle body 15 take place relative rotation, the recipient 20 of setting is the square with the cross section of sliding tray 20, spacing to recipient 20, thereby recipient 20 of being convenient for extends and shortens conveniently extrudes rubber sleeve 16, accomplishes and fixes the cable.
The limiting plate 34 is connected with the cavity 35 in a sliding mode, and the diameter of the inner cavity of the rotating bin 42 is smaller than that of the limiting plate 34.
The diameter of the limiting plate 34 is larger than the diameter of the inner cavity of the rotating bin 42, so that the cutting knife 36 can be limited, and the limiting plate 34 is in contact with the rotating bin 42 at the movement scale limit under the action of inertia.
Wherein, the mounting ring 31 is divided into two sections, two sets of mounting rings 31 are rotatably connected, and one side of the mounting ring 31 is provided with a cylinder.
Two sets of installation rings 31 are driven through the cylinder to open and close, so that the cable can be conveniently extracted, and the cable can be conveniently cut after detection is completed.
The working principle is as follows: in summary, when the cable fixing device is used, firstly, a cable to be detected is inserted into the main body 1 from the insertion hole 3, then the tail end of the cable is inserted into the tail end fixing ring 10, the second ring body 15 is rotated, the gear 18 drives the rotary column 23 to rotate under the mutual matching action of the rack 18 and the gear 19, the rotary column 23 drives the first conical tooth 24 to rotate, the second conical tooth 25 drives the screw 26 to rotate under the mutual matching action of the first conical tooth 24 and the second conical tooth 25, the extrusion cylinder 20 gradually extends and extrudes the rubber sleeve 26 under the mutual limiting action of the screw 26 and the extrusion cylinder 20 which are mutually matched, so as to complete the fixing of the cable, the steps are repeated to fix the other end of the cable, when the cable to be detected is long, the cable is wound on the winding disc, and then under the mutual matching action of the slide block 5 and the slide groove 4, adjusting the distance between the two sets of mounting blocks 9, then rotating the stud 8 to incline the stud 8 upwards, then rotating the rotating bin 42, adjusting the distance between the mounting bin 30 and the rotating bin 42 according to the diameter of the cable and the thickness of the rubber on the outer side of the cable under the action of threads, so that the cutting knife 36 can effectively cut rubber, then starting the electromagnetic slider 29 and the electromagnetic chute 28, driving the mounting bin 30 to rotate by the electromagnetic slider 28, throwing the cutting knife 36 outwards under the action of inertia until the limiting plate 34 abuts against the rotating bin 42, thereby completing the crushing of the rubber, then pressing the pressing block 37, thereby enabling the detection head at the bottom of the pressing block 37 to contact with the copper wire, completing the measurement, when the sampling is to be performed, starting the air cylinder to drive the two sets of mounting rings 31 to be separated, then moving the one set of mounting blocks 9 towards the jack 3, simultaneously rotating the stud 8 and rotating the rotating bin 42, under the effect of screw thread, adjust the distance between installation storehouse 30 and the rotation storehouse 42 according to cable diameter and cable outside rubber thickness, make cutting knife 36 can be to the whole effectual cutting of cable, later merge the collar 31 and embolia the cable within collar 31 once more, later start electromagnetism slider 29 and electromagnetism spout 28, under the effect of inertia, cutting knife 36 cuts the cable, thereby detain the sample in the inside of main part 1, accomplish a set of appearance that stays and detect, later rotate knob 11 and drive double-screw bolt 8 and rotate, under the effect of installation piece 9 and double-screw bolt 8 mutually supporting, adjust the position of installation piece 9, make things convenient for next measurement and the sample of a set of.
The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be considered to be within the technical scope of the present invention, and the technical solutions and the inventive concepts thereof according to the present invention should be equivalent or changed within the scope of the present invention.
Claims (8)
1. The utility model provides a resistance tester for cable convenient to carry, includes main part (1), its characterized in that: the top of the main body (1) is rotatably connected with a cover plate (2), sliding grooves (4) are formed in two sides of the cover plate (2), sliding blocks (5) are connected to two ends of the inner portion of each sliding groove (4) in a sliding mode, a stud (8) is rotatably arranged in the middle of one side of each sliding block (5), an installation block (9) is arranged on the outer side of each stud (8), fixing rings (10) are fixed to two sides of the inner portion of the cover plate (2), one side of each fixing ring (10) is rotatably connected with a second ring body (15), one side of each second ring body (15) is rotatably connected with a first ring body (14), a limiting ring (17) is arranged on one side of each first ring body (14), a rack (18) is arranged on the inner wall of each limiting ring (17), a rotary column (23) is uniformly and rotatably connected to one side of each second ring body (15), and a gear (19) matched with the rack (18) is arranged at one end of each rotary column (23), the other end of the rotating column (23) is fixed with a first conical tooth (24), the inner part of the second ring body (15) is rotatably connected with a screw rod (26), one end of the screw rod (26) is provided with a second conical tooth (25) meshed with the first conical tooth (24), the inner wall of the second ring body (15) is provided with a sliding groove (21), the outer side of the screw rod (26) is rotatably connected with an extrusion cylinder (20) matched with the sliding groove (21) through threads, the bottom of the mounting block (9) is provided with a mounting ring (31), the inner wall of the mounting ring (31) is provided with an electromagnetic sliding rail (28), the inner part of the electromagnetic sliding rail (28) is slidably connected with an electromagnetic sliding block (29), a mounting bin (30) is fixed on one side of the electromagnetic sliding block (29), a connecting groove (33) is arranged in the mounting bin (30), and a first reset spring (32) is fixed in the connecting groove (33), the utility model discloses a cutting tool, including installation bin (30), first reset spring (32), installation bin (43), one side of installation bin (30) is fixed with rotation bin (42), the inside of installation bin (43) is connected with erection column (43) through the screw thread rotation, and the inside of erection column (43) is provided with cavity (35), one side of erection column (43) is fixed with rotation bin (42), the end that first reset spring (32) are right is fixed with limiting plate (34), and one side of limiting plate (34) be fixed with rotation bin (42) sliding connection's cutting knife (36).
2. The portable resistance tester for cables as claimed in claim 1, wherein the cover plate (2) is rotatably connected with a winding disc (6) inside, and the front surface of the cover plate (2) is uniformly provided with insertion holes (3), and the insertion holes (3) correspond to the fixing ring (10).
3. The portable resistance tester for cables as claimed in claim 1, wherein one side of the slider (5) is provided with a limiting post (7) at two sides of the stud (8), and the mounting block (9) is provided with a thread groove (27) inside.
4. The portable resistance tester for cables as claimed in claim 1, wherein a pressing block (37) is slidably connected to the top of the mounting block (9), sliding grooves (38) are connected to two sides of the pressing block (37), a second return spring (39) is installed inside the sliding groove (38), a sliding block (40) which is matched with the sliding groove (38) is fixed to the end of the second return spring (39), the sliding block (40) is fixedly connected with the mounting block (9), a through hole (41) is formed in the outer side of the stud (8), the through hole (41) corresponds to the fixing ring (10), a detection head is installed at the bottom of the pressing block (37), and a rotation knob (11) is arranged at the end of the stud (8).
5. The portable resistance tester for cables as claimed in claim 4, wherein the inside of the main body (1) is provided with a detector (12), one side of the inside of the main body (1) is provided with a placing cavity (13), the top of the detector (12) is provided with a connecting wire, and the end of the connecting wire is connected with the detection head.
6. The portable resistance tester for the cable according to claim 1, wherein a rubber sleeve (16) is arranged on the inner wall of the second ring body (15), a limiting groove (22) matched with the limiting ring (17) is arranged on one side of the second ring body (15), and the first ring body (14) is fixedly connected with the cover plate (2).
7. The portable cable resistance tester as claimed in claim 1, wherein the limiting plate (34) is slidably connected to the cavity (35), and the diameter of the inner cavity of the rotating chamber (42) is smaller than the diameter of the limiting plate (34).
8. The portable cable resistance tester as claimed in claim 1, wherein the number of the squeeze cylinders (20) is plural groups, and the cross sections of the plural groups of the squeeze cylinders (20) and the sliding groove (21) are square.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210137898.1A CN114509606B (en) | 2022-02-15 | 2022-02-15 | Portable resistance tester for cable |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210137898.1A CN114509606B (en) | 2022-02-15 | 2022-02-15 | Portable resistance tester for cable |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN114509606A true CN114509606A (en) | 2022-05-17 |
| CN114509606B CN114509606B (en) | 2023-06-30 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210137898.1A Active CN114509606B (en) | 2022-02-15 | 2022-02-15 | Portable resistance tester for cable |
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| Country | Link |
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| CN (1) | CN114509606B (en) |
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| CN214473609U (en) * | 2020-12-05 | 2021-10-22 | 沈阳辽缆电线电缆制造有限公司 | Detection apparatus for measuring cable resistance |
| CN214252430U (en) * | 2020-12-07 | 2021-09-21 | 中策永通电缆有限公司 | High-reliability quick measuring device for conductor resistance of wire and cable |
| CN112787272A (en) * | 2021-01-06 | 2021-05-11 | 杭州刊诀机电设备有限公司 | Outer insulating layer stripping device for electromechanical equipment cable |
| CN215525951U (en) * | 2021-07-16 | 2022-01-14 | 宇超电力股份有限公司 | Novel cable direct resistance measuring tool |
| CN114019240A (en) * | 2021-10-18 | 2022-02-08 | 上饶市济华实业有限公司 | Test fixture for resistance of inner conductor and outer conductor of coaxial cable |
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| CN114509606B (en) | 2023-06-30 |
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