CN112924835A - Portable cable partial discharge detection device - Google Patents
Portable cable partial discharge detection device Download PDFInfo
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- CN112924835A CN112924835A CN202110386340.2A CN202110386340A CN112924835A CN 112924835 A CN112924835 A CN 112924835A CN 202110386340 A CN202110386340 A CN 202110386340A CN 112924835 A CN112924835 A CN 112924835A
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- 238000001514 detection method Methods 0.000 title claims abstract description 89
- 230000001681 protective effect Effects 0.000 claims abstract description 17
- 238000013016 damping Methods 0.000 claims abstract description 4
- 238000003860 storage Methods 0.000 claims description 28
- 238000007789 sealing Methods 0.000 claims description 10
- 238000004140 cleaning Methods 0.000 claims description 7
- 238000004804 winding Methods 0.000 claims description 6
- 230000008878 coupling Effects 0.000 description 3
- 238000010168 coupling process Methods 0.000 description 3
- 238000005859 coupling reaction Methods 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 230000008569 process Effects 0.000 description 3
- 239000000428 dust Substances 0.000 description 2
- 230000033001 locomotion Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 230000035939 shock Effects 0.000 description 2
- 235000017166 Bambusa arundinacea Nutrition 0.000 description 1
- 235000017491 Bambusa tulda Nutrition 0.000 description 1
- 241001330002 Bambuseae Species 0.000 description 1
- 235000015334 Phyllostachys viridis Nutrition 0.000 description 1
- 238000010521 absorption reaction Methods 0.000 description 1
- 239000011425 bamboo Substances 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 230000007306 turnover Effects 0.000 description 1
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
- G01R31/12—Testing dielectric strength or breakdown voltage ; Testing or monitoring effectiveness or level of insulation, e.g. of a cable or of an apparatus, for example using partial discharge measurements; Electrostatic testing
- G01R31/1227—Testing dielectric strength or breakdown voltage ; Testing or monitoring effectiveness or level of insulation, e.g. of a cable or of an apparatus, for example using partial discharge measurements; Electrostatic testing of components, parts or materials
- G01R31/1263—Testing dielectric strength or breakdown voltage ; Testing or monitoring effectiveness or level of insulation, e.g. of a cable or of an apparatus, for example using partial discharge measurements; Electrostatic testing of components, parts or materials of solid or fluid materials, e.g. insulation films, bulk material; of semiconductors or LV electronic components or parts; of cable, line or wire insulation
- G01R31/1272—Testing dielectric strength or breakdown voltage ; Testing or monitoring effectiveness or level of insulation, e.g. of a cable or of an apparatus, for example using partial discharge measurements; Electrostatic testing of components, parts or materials of solid or fluid materials, e.g. insulation films, bulk material; of semiconductors or LV electronic components or parts; of cable, line or wire insulation of cable, line or wire insulation, e.g. using partial discharge measurements
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- 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
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Testing Relating To Insulation (AREA)
Abstract
The invention discloses a portable cable partial discharge detection device, which comprises a detection box, a detection clamp, a box cover and a fixed box, wherein an operation panel is arranged in the detection box; the box cover is hinged to the edge of the detection box, and a through groove is formed in the box cover; a fixed box is fixed on the inner side of the box cover, a movable groove for the movable shaft to move is formed in the side face of the fixed box, and gears are sleeved at two ends of the movable shaft; and a protective air bag with a damping function is arranged on the case cover outside the fixed case. This portable cable partial discharge detection device conveniently carries detection device to different places and detects to can adjust detection range and distance, can adjust its inside protective structure's shock-absorbing strength simultaneously according to detection device's transport condition.
Description
Technical Field
The invention relates to the technical field of cable partial discharge detection, in particular to a portable cable partial discharge detection device.
Background
In order to ensure the safety of the cable when the cable is put into use, partial discharge detection operation is needed in the production process of the cable, and phenomena such as unstable voltage, electric leakage and the like are prevented, so that a partial discharge tester is needed, for example, a cable partial discharge tester which is convenient to adjust and has the publication number of CN210294454U, the stability of the cable partial discharge tester comprises a base, a supporting plate and an instrument body … is high, free height adjustment can be carried out on different use conditions, and the use efficiency of the device is improved. However, the cable partial discharge tester convenient for adjustment still has the following disadvantages in the actual use process:
1. the device is only suitable for partial discharge detection of a small-range cable, and most of detection devices have large specifications and are inconvenient to carry, so that the detection range and distance of the cable are limited;
2. and inside all having the structure to the detection mechanism protection of current detection device, this type of structure is fixed the setting mostly, can't adjust the proof strength according to the user demand of difference.
In order to solve the problems, innovative design is urgently needed on the basis of the original cable partial discharge detection device.
Disclosure of Invention
The invention aims to provide a portable cable partial discharge detection device, and aims to solve the problems that in the background art, most detection devices are large in specification and inconvenient to carry, so that the detection range and distance of cables are limited, and most structures are fixedly arranged, so that the protection strength cannot be adjusted according to different use requirements.
In order to achieve the purpose, the invention provides the following technical scheme: a portable cable partial discharge detection device comprises a detection box, a detection clamp, a box cover and a fixing box, wherein an operation panel is installed inside the detection box, a fixing cylinder for winding a connecting wire is fixed at the edge of the operation panel, the detection clamp for testing a cable is arranged at the end of the connecting wire, a movable rod for prolonging the winding length is movably arranged at the top of the fixing cylinder, a limiting block is connected to the top of the movable rod, and a ball for improving the moving smoothness of the connecting wire is embedded into the inner side of the limiting block;
the box cover is hinged to the edge of the detection box, through holes for limiting connecting lines are formed in the edges of the box cover and the detection box, a sealing strip is arranged at the connecting position of the box cover and the detection box, a through groove is formed in the box cover, and a display screen is movably mounted on the inner side of the through groove;
a fixed box is fixed on the inner side of the box cover, a tooth block is arranged on the inner wall of the fixed box, a movable groove for the movable shaft to move is formed in the side surface of the fixed box, two ends of the movable shaft penetrate through the movable groove, gears are sleeved at two ends of the movable shaft, and a cleaning brush is adhered to the side surface of the movable shaft;
the box cover outside the fixed box is provided with a protective air bag with a damping function, and four corners of the protective air bag are connected with the bottom of the gas storage box through connecting hoses for transmitting gas.
Preferably, the side of detection case rotates and is provided with the handle pole, and has seted up the fixed slot on the detection case of handle pole horizontal position tip to reserve on the case lid of handle pole vertical position tip and have the spread groove, can realize opening and closing detection case and case lid through the rotation of handle pole.
Preferably, fixed slot and spread groove are the arc structure, and both arc centers coincide mutually to the radius of fixed slot slightly is greater than the radius of spread groove, can extrude the sealing strip after the handle bar rotates to the spread groove in, guarantees the leakproofness in the detection case.
Preferably, the movable rod and the fixed cylinder form a longitudinal telescopic structure, the cross section of the limiting block on the movable rod is of an open circular ring structure, the balls are arranged in the limiting block at equal angles, and the length of the wound connecting wire can be prolonged through the extension of the movable rod.
Preferably, the display screen forms the flip structure who closely laminates through leading to groove and case lid, and the thickness of display screen is less than the thickness of top surface in the case lid, can look over the detection data when detection case and case lid are closed through the upset of display screen.
Preferably, the tooth blocks are arranged in the fixed box at equal intervals, the tooth blocks are connected with the gears in a meshed mode, the movable distance of the gears is larger than the length of the display screen, and the gears are meshed with the tooth blocks to drive the cleaning brushes to clean the display screen when the movable shafts move.
Preferably, the protection airbag is communicated with the gas storage box through a connecting hose to form gas, the surface of the protection airbag is of a wave-shaped structure, the cross section of the gas storage box is of a fan-shaped structure, and the raised protection airbag can absorb shock of parts in the detection box.
Preferably, the top of gas storage box is run through there is the regulation pole, and the one end that the regulation pole is in the gas storage box is connected with the valve plate, and 4 corners of gas storage box at the case lid are the setting of running through, can push the protection gasbag through coupling hose with the gas in the gas storage box through rotating the regulation pole.
Preferably, the edge of valve plate and the inner wall of gas storage box closely laminate, the valve plate with adjust the pole and be bearing connection, and adjust pole and case lid and be threaded connection, the motion of valve plate has decided the inflation state of protection gasbag.
Compared with the prior art, the invention has the beneficial effects that: the portable cable partial discharge detection device is convenient to carry to different places for detection, the detection range and distance can be adjusted, and the damping strength of the internal protection structure can be adjusted according to the carrying condition of the detection device;
1. when the detection box and the box cover are in a closed state, the handle rod is rotated to be in a vertical state, and the radius of the connecting groove is smaller than that of the fixing groove, so that the handle rod after rotation has a tensioning effect, and the sealing strip can be extruded to ensure the sealing property in the detection box;
2. when the detection box needs to be carried, the adjusting rod is rotated to drive the valve plate to lift in the gas storage box according to the vibration amplitude generated in the carrying process, air in the gas storage box can be pushed into the protective airbag through the connecting hose or the air in the protective airbag is pumped out through the movement of the valve plate, and then the expansion degree of the protective airbag is adjusted, so that parts in the detection box can be protected to different degrees;
3. unnecessary connecting wire can twine on fixed section of thick bamboo in the testing process, and the multiplicable winding length of extension through the movable rod to connecting wire accessible stopper carries on spacingly, can not influence its removal simultaneously again, and then carries on spacingly to the position when examining, so that also can look over the testing result when detection case and case lid are closed.
Drawings
FIG. 1 is a schematic top-down expanded view of a detection box and a box cover according to the present invention;
FIG. 2 is a schematic front view of the present invention;
FIG. 3 is a schematic cross-sectional view taken along line A-A of FIG. 2 according to the present invention;
FIG. 4 is an enlarged view of a portion a of FIG. 3 according to the present invention;
FIG. 5 is a schematic perspective sectional view of the gas cartridge of the present invention;
FIG. 6 is a schematic view of the bottom cross-section of the fixing box of the present invention.
In the figure: 1. a detection box; 1.1, a handle bar; 1.2, fixing grooves; 2. an operation panel; 3. a fixed cylinder; 4. a connecting wire; 5. detecting a clamp; 6. a movable rod; 7. a limiting block; 8. a ball bearing; 9. a box cover; 9.1, connecting grooves; 10. a through hole; 11. a through groove; 12. a display screen; 13. a fixing box; 14. a tooth block; 15. a movable groove; 16. a movable shaft; 17. a gear; 18. cleaning the brush; 19. a protective air bag; 20. a connecting hose; 21. a gas storage box; 211. adjusting a rod; 212. a valve plate; 22. a sealing strip.
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. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to fig. 1-6, the present invention provides a technical solution: a portable cable partial discharge detection device comprises a detection box 1, a handle rod 1.1, a fixed groove 1.2, an operation panel 2, a fixed cylinder 3, a connecting wire 4, a detection clamp 5, a movable rod 6, a limiting block 7, a ball 8, a box cover 9, a connecting groove 9.1, a through hole 10, a through groove 11, a display screen 12, a fixed box 13, a tooth block 14, a movable groove 15, a movable shaft 16, a gear 17, a cleaning brush 18, a protective air bag 19, a connecting hose 20, an air storage box 21, an adjusting rod 211, a valve plate 212 and a sealing strip 22, wherein the operation panel 2 is arranged inside the detection box 1, the fixed cylinder 3 wound with the connecting wire 4 is fixed at the edge of the operation panel 2, the detection clamp 5 for testing the cable is arranged at the end of the connecting line 4, the top of the fixed cylinder 3 is movably provided with a movable rod 6 for prolonging the winding length, the top of the movable rod 6 is connected with a limiting block 7, and the inner side of the limiting block 7 is embedded with a ball 8 for improving the moving smoothness of the connecting line 4;
the box cover 9 is hinged to the edge of the detection box 1, through holes 10 for limiting the connecting lines 4 are formed in the edges of the box cover 9 and the detection box 1, a sealing strip 22 is arranged at the connecting position of the box cover 9 and the detection box 1, a through groove 11 is formed in the box cover 9, and a display screen 12 is movably mounted on the inner side of the through groove 11;
a fixed box 13 is fixed on the inner side of the box cover 9, a tooth block 14 is arranged on the inner wall of the fixed box 13, a movable groove 15 for moving a movable shaft 16 is formed in the side surface of the fixed box 13, two ends of the movable shaft 16 penetrate through the movable groove 15, gears 17 are sleeved at two ends of the movable shaft 16, and a cleaning brush 18 is adhered to the side surface of the movable shaft 16;
a protective air bag 19 with a shock absorption function is arranged on the box cover 9 at the outer side of the fixed box 13, and four corners of the protective air bag 19 are connected with the bottom of a gas storage box 21 through connecting hoses 20 for transmitting gas;
the side surface of the detection box 1 is rotatably provided with a handle rod 1.1, the detection box 1 at the horizontal position end part of the handle rod 1.1 is provided with a fixed groove 1.2, the box cover 9 at the vertical position end part of the handle rod 1.1 is reserved with a connecting groove 9.1, the fixed groove 1.2 and the connecting groove 9.1 are both arc-shaped structures, arc centers of the fixed groove and the connecting groove coincide, the radius of the fixed groove 1.2 is slightly larger than that of the connecting groove 9.1, the handle rod 1.1 in the horizontal state is rotated to be in the vertical state, the handle rod 1.1 is driven to slide in the fixed groove 1.2 and then slide into the connecting groove 9.1, and the rotated handle rod 1.1 can drive the detection box 1 to be tightly attached to the box cover 9 and extrude a sealing strip 22, so that the sealing performance in the detection box 1 can be ensured;
the movable rod 6 and the fixed cylinder 3 form a longitudinal telescopic structure, the cross section of the limiting block 7 on the movable rod 6 is of an open circular ring structure, the balls 8 are arranged in the limiting block 7 at equal angles, the movable rod 6 is pulled to extend in the fixed cylinder 3, the winding length can be adjusted, the smoothness of the pulling of the connecting wire 4 can be improved through the balls 8 in the limiting block 7, and therefore the detection of the cable can be realized after the detection box 1 and the box cover 9 are closed;
the display screen 12 and the box cover 9 form a tightly-attached turnover structure through the through groove 11, the thickness of the display screen 12 is smaller than that of the inner top surface of the box cover 9, the tooth blocks 14 are arranged in the fixed box 13 at equal intervals, the tooth blocks 14 are in meshed connection with the gears 17, the movable distance of the gears 17 is larger than the length of the display screen 12, the display screen 12 can be turned over before closing, so that a display area is positioned outside the box cover 9 to be conveniently checked, the movable shaft 16 is shifted to slide in the movable groove 15 on the fixed box 13, and the movable shaft 16 rotates while moving through the meshing between the gears 17 and the tooth blocks 14, so that dust adhered to the display screen 12 can be cleaned through the cleaning brush 18, and the definition of the dust is guaranteed;
gaseous intercommunication is constituteed through coupling hose 20 and gas storage box 21 to protective airbag 19, protective airbag 19's surface is the wave structure, and gas storage box 21's cross-section is fan-shaped structure, the top of gas storage box 21 is run through there is regulation pole 211, the one end that regulation pole 211 is in gas storage box 21 is connected with valve plate 212, and 4 corners of gas storage box 21 at case lid 9 are all to run through the setting, the edge of valve plate 212 and the inner wall of gas storage box 21 closely laminate, valve plate 212 and regulation pole 211 are the bearing connection, and adjust pole 211 and case lid 9 and be threaded connection, in pushing into protective airbag 19 through coupling hose 20 with the air in the gas storage box 21, let protective airbag 19 be the protection that the state of heaing up realized part in to detection case 1.
The working principle is as follows: firstly, as shown in fig. 2, after the device is carried to a specified position, the detection box 1 and the box cover 9 can be opened by rotating the handle bar 1.1 to a horizontal state;
as shown in fig. 1 and fig. 3-4, after the box cover 9 is opened, partial discharge of the cable can be detected through the detection clamp 5, the connecting wire 4 wound on the fixed cylinder 3 can be pulled according to detection requirements for adjusting different detection lengths, redundant connecting wires 4 can be wound on the fixed cylinder 3, and the connecting wires 4 extending out of the detection box 1 can be clamped in the limiting blocks 7 and pass through the through holes 10;
as shown in fig. 1 and fig. 5-6, when the detection device needs to be transported, the adjusting rod 211 is rotated to drive the valve plate 212 to move in the air storage box 21, and the valve plate 212 moves to different states, so that different degrees of protection can be realized, and the detection device is suitable for transporting devices under different road conditions.
In the description of the present invention, "a plurality" means two or more unless otherwise specified; the terms "upper", "lower", "left", "right", "inner", "outer", "front", "rear", "head", "tail", and the like, indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, are only for convenience in describing and simplifying the description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed in a particular orientation, and be operated, and thus, should not be construed as limiting the invention. Furthermore, the terms "first," "second," "third," and the like are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "connected" and "connected" are to be interpreted broadly, e.g., as being fixed or detachable or integrally connected; can be mechanically or electrically connected; may be directly connected or indirectly connected through an intermediate. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.
Although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that various changes in the embodiments and/or modifications of the invention can be made, and equivalents and modifications of some features of the invention can be made without departing from the spirit and scope of the invention.
Claims (9)
1. The utility model provides a portable cable partial discharge detection device, includes detection case, detection clamp, case lid and fixed box, its characterized in that: an operation panel is installed inside the detection box, a fixed cylinder wound with a connecting wire is fixed at the edge of the operation panel, the detection clamp for cable testing is arranged at the end of the connecting wire, a movable rod for prolonging the winding length is movably arranged at the top of the fixed cylinder, a limiting block is connected to the top of the movable rod, and balls for improving the moving smoothness of the connecting wire are embedded into the inner side of the limiting block;
the box cover is hinged to the edge of the detection box, through holes for limiting connecting lines are formed in the edges of the box cover and the detection box, a sealing strip is arranged at the connecting position of the box cover and the detection box, a through groove is formed in the box cover, and a display screen is movably mounted on the inner side of the through groove;
a fixed box is fixed on the inner side of the box cover, a tooth block is arranged on the inner wall of the fixed box, a movable groove for the movable shaft to move is formed in the side surface of the fixed box, two ends of the movable shaft penetrate through the movable groove, gears are sleeved at two ends of the movable shaft, and a cleaning brush is adhered to the side surface of the movable shaft;
the box cover outside the fixed box is provided with a protective air bag with a damping function, and four corners of the protective air bag are connected with the bottom of the gas storage box through connecting hoses for transmitting gas.
2. The portable cable partial discharge detection apparatus of claim 1, wherein: the side of the detection box is rotatably provided with a handle rod, a fixing groove is formed in the detection box at the end part of the horizontal position of the handle rod, and a connecting groove is reserved in the box cover at the end part of the vertical position of the handle rod.
3. A portable cable partial discharge detection apparatus according to claim 2, wherein: the fixed groove and the connecting groove are both arc-shaped structures, arc centers of the fixed groove and the connecting groove are overlapped, and the radius of the fixed groove is slightly larger than that of the connecting groove.
4. The portable cable partial discharge detection apparatus of claim 1, wherein: the movable rod and the fixed cylinder form a longitudinal telescopic structure, the cross section of the limiting block on the movable rod is of an open circular structure, and the balls are arranged in the limiting block at equal angles.
5. The portable cable partial discharge detection apparatus of claim 1, wherein: the display screen forms the flip structure who closely laminates through logical groove and case lid, and the thickness of display screen is less than the thickness of top surface in the case lid.
6. The portable cable partial discharge detection apparatus of claim 1, wherein: the tooth blocks are arranged in the fixed box at equal intervals, the tooth blocks are in meshed connection with the gears, and the movable distance of the gears is larger than the length of the display screen.
7. The portable cable partial discharge detection apparatus of claim 1, wherein: the protection air bag is communicated with the gas storage box through a connecting hose to form gas, the surface of the protection air bag is of a wave-shaped structure, and the cross section of the gas storage box is of a fan-shaped structure.
8. The portable cable partial discharge detection apparatus of claim 1, wherein: the top of gas storage box runs through there is the regulation pole, and the one end that the regulation pole is in the gas storage box is connected with the valve plate, and 4 corners of gas storage box at the case lid are the setting of running through.
9. The portable cable partial discharge detection apparatus of claim 8, wherein: the edge of valve plate and the inner wall of gas storage box closely laminate, the valve plate is connected for the bearing with adjusting the pole, and adjusts pole and case lid and be threaded connection.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110386340.2A CN112924835A (en) | 2021-04-12 | 2021-04-12 | Portable cable partial discharge detection device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110386340.2A CN112924835A (en) | 2021-04-12 | 2021-04-12 | Portable cable partial discharge detection device |
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| CN112924835A true CN112924835A (en) | 2021-06-08 |
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| CN202110386340.2A Pending CN112924835A (en) | 2021-04-12 | 2021-04-12 | Portable cable partial discharge detection device |
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Cited By (4)
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| CN114486542A (en) * | 2021-12-28 | 2022-05-13 | 安徽云蒙仪表有限公司 | Glass manages glass pipe detection device for level gauge |
| CN114839496A (en) * | 2022-07-01 | 2022-08-02 | 沈阳工业大学 | Portable transformer partial discharge detection device |
| CN116754882A (en) * | 2023-08-21 | 2023-09-15 | 国网天津市电力公司高压分公司 | Capacitor and transformer boosting performance detection device |
| CN117148221A (en) * | 2023-10-31 | 2023-12-01 | 中铁电气化局集团有限公司 | Signal cable testing device |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN114839496A (en) * | 2022-07-01 | 2022-08-02 | 沈阳工业大学 | Portable transformer partial discharge detection device |
| CN116754882A (en) * | 2023-08-21 | 2023-09-15 | 国网天津市电力公司高压分公司 | Capacitor and transformer boosting performance detection device |
| CN116754882B (en) * | 2023-08-21 | 2023-10-27 | 国网天津市电力公司高压分公司 | Capacitor and transformer boosting performance detection device |
| CN117148221A (en) * | 2023-10-31 | 2023-12-01 | 中铁电气化局集团有限公司 | Signal cable testing device |
| CN117148221B (en) * | 2023-10-31 | 2023-12-26 | 中铁电气化局集团有限公司 | Signal cable testing device |
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