CN103414033B - Cable safety puncture device - Google Patents
Cable safety puncture device Download PDFInfo
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- CN103414033B CN103414033B CN201310308940.2A CN201310308940A CN103414033B CN 103414033 B CN103414033 B CN 103414033B CN 201310308940 A CN201310308940 A CN 201310308940A CN 103414033 B CN103414033 B CN 103414033B
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- top board
- cable
- puncture needle
- base plate
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- 238000009413 insulation Methods 0.000 claims abstract description 25
- 239000000203 mixture Substances 0.000 claims abstract description 3
- 239000000463 material Substances 0.000 claims description 4
- 229920001342 Bakelite® Polymers 0.000 claims description 3
- 239000004637 bakelite Substances 0.000 claims description 3
- 230000002457 bidirectional effect Effects 0.000 claims description 3
- 229920005989 resin Polymers 0.000 claims description 3
- 239000011347 resin Substances 0.000 claims description 3
- 230000007306 turnover Effects 0.000 claims description 2
- 230000008901 benefit Effects 0.000 abstract description 2
- 230000006872 improvement Effects 0.000 description 7
- 238000000034 method Methods 0.000 description 4
- 230000005540 biological transmission Effects 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 230000009466 transformation Effects 0.000 description 3
- 238000010276 construction Methods 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- LENZDBCJOHFCAS-UHFFFAOYSA-N tris Chemical compound OCC(N)(CO)CO LENZDBCJOHFCAS-UHFFFAOYSA-N 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 1
- 238000001467 acupuncture Methods 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000002708 enhancing effect Effects 0.000 description 1
- 239000011810 insulating material Substances 0.000 description 1
- 238000002955 isolation Methods 0.000 description 1
- 230000004807 localization Effects 0.000 description 1
- 230000014759 maintenance of location Effects 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
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- Manufacturing Of Electrical Connectors (AREA)
- Installation Of Indoor Wiring (AREA)
Abstract
The invention discloses a kind of cable safety puncture device, comprise hydraulic power unit, puncture needle, electric cable fixing clamp, described hydraulic power unit comprises piston rod, the pre-ground connection of described puncture needle arranges and passes through an insulating knockout pin and is connected with piston rod, the excircle of puncture needle and insulating knockout pin is set with the fairlead that insulate, the two ends of the corresponding insulating knockout pin of insulation fairlead arrange step, described step excircle arranges an insulating sleeve by fixed cover, described electric cable fixing clamp comprises by top board, the fixed mount of base plate and side stand composition, base plate and the hinged setting of one of them side stand, base plate and other side stands are fixed by fastening bolt, top board arranges puncturing hole, one end of the corresponding puncture needle of insulation fairlead is fixedly connected on the outer of puncturing hole, the top board of fixed mount inside and base plate are arranged the arc card of the attached cable of semi arch structure in correspondence with each other.The present invention has compact conformation, advantage reasonable in design, safe and reliable, easy to operate, with low cost.
Description
Technical field
The present invention relates to a kind of electric power tool, specifically a kind of instrument for discharging to cable temporarily.
Background technology
Along with the fast development of city public construction and the high speed development of Urban Residential District, the city power distribution overhead power transmission network taking shape in eighties of last century can not adapt to the development of city public construction gradually.Old overhead power transmission network, old power cable transmission line and power cable ditch carry out successively putting cable underground transformation and old cable is changed and power cable ditch retrofit work.Existing workflow is: first use Path Recognition instrument and cable identification position indicator, is being added one group of distinctive signal ripple by one end of transformation cable; Then identifier is used to carry out Signal analysis along cable trace (known paths or identification path) and locate; Behind location, with hand hammer, the drill rod of line with ground is hammered in the cable behind location by workmen, to guarantee electric discharge and ground connection; Finally, workmen by cable cutter this cable cutting.
There is a lot of shortcoming in such operating process:
The first, when running cable in operation cable trough and off-duty number of cables is more, load uncertainty is inconsistent, or when technology or mass defect appear in cable identifier, workmen is not easy correctly to determine to be transformed cable.
The second, when workmen hammers into the drill rod of line with ground in cable behind location with hand hammer, if when this cable distance is longer, have residual charge in cable, the personnel that easily cause injure or cause the erroneous judgement of workmen.
3rd, if cable Wrong localization, electric power system single-phase earthing or phase fault ground connection can be caused after the cable after workmen hammers into location with hand hammer the drill rod of line with ground, great damage is caused to operation of power networks and personal safety.
Summary of the invention
The technical issues that need to address of the present invention are to provide a kind of safe and reliable cable safety puncture device.
For solving the problems of the technologies described above, the technical solution adopted in the present invention is:
Cable safety puncture device, comprise hydraulic power unit, puncture needle, electric cable fixing clamp, described hydraulic power unit comprises the piston rod be connected with the piston in cylinder body, the pre-ground connection of described puncture needle arranges and passes through an insulating knockout pin and is connected with piston rod, puncture needle is set with the excircle of insulating knockout pin the insulation fairlead be fixedly connected with cylinder body, the two ends of the corresponding insulating knockout pin of insulation fairlead arrange step, described step excircle arranges an insulating sleeve by the fixed cover of suit, described electric cable fixing clamp comprises by top board, the fixed mount of the cuboid frame structure of base plate and side stand composition, the base plate of fixed mount and the hinged setting of one of them side stand, base plate and other side stands are fixed by fastening bolt, the top board of fixed mount is arranged the puncturing hole for puncture needle turnover, one end of the corresponding puncture needle of insulation fairlead is fixedly connected on the outer of puncturing hole, the top board of fixed mount inside and base plate are arranged the arc card of the attached cable of semi arch structure in correspondence with each other.
Further improvement of the present invention is: described cylinder body is connected bidirectional hydraulic pump by oil inlet pipe with flowline.
Further improvement of the present invention is: described cylinder body is connected one-way hydraulic pump by oil inlet pipe with flowline, and the excircle of cylinder body inner piston rod is set with the return spring abutted with cylinder body.
Further improvement of the present invention is: the earth stud top board of described fixed mount being arranged pre-earth connection.
Further improvement of the present invention is: described arc card is fixedly connected with top board or base plate.
Further improvement of the present invention is: described arc cartoon overcompression spring is connected with top board, arc card is welded with the guide pillar be located in Compress Spring, has gap between the other end of guide pillar and upper frame.
Further improvement of the present invention is: described arc cartoon is crossed pretension bolt and is connected with top board, the center of the corresponding arc card of top board connects pretension bolt, the end of pretension bolt is set to polished rod, the center of arc card arranges the blind hole corresponding with polished rod length and diameter, and the side of blind hole arranges the retaining thread hole that communicate vertical with blind hole.
Further improvement of the present invention is: described insulating knockout pin, insulating sleeve and insulation fairlead adopt insulating resin or bakelite material to make.
Owing to have employed technique scheme, the technological progress that the present invention obtains is:
The present invention designs the puncture needle driven by hydraulic power unit, utilizes hydraulic power unit to drive insulating knockout pin, and insulating knockout pin drives thorn point to realize cable core ground connection through cable.The mid portion of insulating knockout pin and thorn point is insulating material, can ensure the personal safety of operating personnel, avoids the potential safety hazard caused the person because of instantaneous short circuit etc. by workmen's manual operations.Power set and acupuncture position are separated by insulating sleeve and the fairlead that insulate by the present invention, even if once in a while because misoperation Discharge Phenomena, also hydraulic power unit part can not be transmitted to, change the design of the integrative-structure of original drill rod, nor be increase seal at the end of power set separately, enhance the fail safe of operation.
The present invention designs insulation fairlead, is the direction in order to guided puncture needle movement on the one hand, also has the effect of isolation and insulation on the other hand.
The present invention designs piston that is unidirectional or bi-directional movable, can select according to actual needs, the design of relative bi-directional movable, and the structure of unidirectional design is comparatively simple, and the operation of return spring is relatively stable, and puncture needle operates steadily.
The pre-tightening apparatus of the present invention's design at least two kinds of arc cards, can compress in advance cable by movable adjustment arc card, prevents cable from sliding in piercing process, safe and reliable.
The present invention, by fixed mount ground connection setting in advance, further enhancing fail safe.
The present invention is applicable to the three-phase of 10kV electric pressure, Monophase electric power cable and the various low-voltage cable of 0.4kV, will greatly improve the safety assurance coefficient of constructing operation personnel, even if being judged by accident by the identification of transformation cable, also can not injure operating personnel.
To sum up, the present invention has compact conformation, advantage reasonable in design, safe and reliable, easy to operate, with low cost.
Accompanying drawing explanation
Fig. 1 is structure principle chart of the present invention.
Wherein, 1, cylinder body, 2, piston, 3, return spring, 4, insulating knockout pin, 5, insulating sleeve, 6, insulation fairlead, 7, puncture needle, 8, fixed mount, 9, base plate, 10, top board, 11, arc card.
Embodiment
Below in conjunction with drawings and Examples, the present invention is described in further details:
Embodiment 1
Cable safety puncture device, as shown in Figure 1, comprises hydraulic power unit, puncture needle 7, electric cable fixing clamp.
Described hydraulic power unit comprises the cylinder body 1 manufactured by special steel material, arranges piston 2 in cylinder body 1, and one end of piston 2 connects the piston rod stretched out outside cylinder body 1, the external hydraulic pump of cylinder body 1.Bidirectional hydraulic pump can be connected with flowline, directly by the side-to-side movement of hydraulic pump control piston in cylinder body by oil inlet pipe.One-way hydraulic pump can also be connected with flowline by oil inlet pipe, in order to ensure that piston 2 can reset, at the excircle suit return spring 3 of piston rod 2, one end of return spring 3 is fixedly connected with piston 2, the other end of return spring 3 abuts with cylinder body 1, in order to fixing return spring 3, what on cylinder body 1, setting was corresponding with return spring 3 external diameter clamps ring.
Described piston rod connects an insulating knockout pin 4, the outer end connecting puncture needle 7 of insulating knockout pin 4.Puncture needle 7 is ground connection setting in advance before the procedure.Puncture needle 7 arranges with the excircle of insulating knockout pin 4 fairlead 6 that insulate, and one end of insulation fairlead 6 is fixedly connected with cylinder body, and the other end of insulation fairlead 6 is used for stube cable holding clamp.The insulating sleeve 5 of the corresponding insulating knockout pin 4 of insulation fairlead 6 arranged outside, retention gap between insulating sleeve 5 and insulation fairlead 6, the vibrational power flow of both similar shafts of a writing brush and pen core.The two ends of insulating sleeve 5 arrange the through hole of corresponding insulation fairlead 6, the two ends of the corresponding insulating sleeve 5 of insulation fairlead 6 arrange step trough, after insulation fairlead 6 is got well with insulating sleeve 5 is positioned opposite, at the step trough place suit adapter sleeve of insulation fairlead 6, by adapter sleeve fixed insulation fairlead 6 and insulating sleeve 5.Described insulating knockout pin, insulating sleeve and insulation fairlead all adopt insulating resin or bakelite material to make.
Described electric cable fixing clamp comprises the fixed mount 8 of cuboid frame structure, and fixed mount is made up of top board 10, four side stands and base plate 9.During operation, base plate 9 and earth surface.Base plate 9 and the hinged setting of one of them side stand of fixed mount, base plate 9 is connected by fastening bolt with other three side stands, and Steel Bolt chosen by fastening bolt.Top board 10 is also arranged the pre-earth connection of earth stud.The top board of fixed mount inside with base plate is fixedly connected with the arc card 11 be oppositely arranged.Described arc card 11 is semi arch structure in correspondence with each other, for connecting and fixing cable.Top board 10 is arranged the puncturing hole passed in and out for puncture needle 7, one end of insulation fairlead 6 Connection Bracket equals or is a bit larger tham the diameter of puncturing hole, and insulation fairlead 6 is arranged on the outer of puncturing hole.
Embodiment 2
The conveniently cable of fastening different-diameter, is set to flexible connection form by the arc card 11 be connected with top board 10 in embodiment 1 in the present embodiment, and certainly, if needed, flexible connection form is arranged to by the arc card 11 that also base plate 9 can be connected.Be specifically as follows the following two kinds connected mode:
The first connected mode is: described arc cartoon overcompression spring is connected with top board, arc card is welded with the guide pillar be located in Compress Spring, has gap between the other end of guide pillar and top board, ensure that Compress Spring has compression stroke.
The optional connected mode of the second is: described arc cartoon is crossed pretension bolt and is connected with top board, and the center of the corresponding arc card of top board connects pretension bolt, and the end of pretension bolt arranges one end polished rod.The center of arc card arranges blind hole, and the degree of depth of blind hole equals or is slightly smaller than the length of polished rod, and the diameter of blind hole equals or is a bit larger tham the diameter of polished rod, and the side of blind hole arranges the retaining thread hole that communicate vertical with blind hole.During operation, first arc card is stuck in the outer surface of cable, then turns the pretension bolt of top board, pretension bolt props up the blind hole on arc card, ensures that arc clamping tightly blocks cable, then in retaining thread hole, is screwed into screw and fixes pretension bolt, and then fixing arc card.
Claims (5)
1. cable safety puncture device, it is characterized in that: comprise hydraulic power unit, puncture needle (7), electric cable fixing clamp, described hydraulic power unit comprises the piston rod be connected with the piston (2) in cylinder body (1), the pre-ground connection of described puncture needle (7) arranges and passes through an insulating knockout pin (4) and is connected with piston rod, puncture needle (7) and the excircle of insulating knockout pin (4) are set with the insulation fairlead (6) be fixedly connected with cylinder body, the two ends of insulation fairlead (6) corresponding insulating knockout pin (4) arrange step, described step excircle arranges an insulating sleeve (5) by the fixed cover of suit, described electric cable fixing clamp comprises by top board (10), the fixed mount (8) of the cuboid frame structure of base plate (9) and side stand composition, the base plate of fixed mount (8) and the hinged setting of one of them side stand, base plate (9) and other side stands are fixed by fastening bolt, the top board (10) of fixed mount is arranged the puncturing hole for puncture needle turnover, one end of insulation fairlead (6) corresponding puncture needle (7) is fixedly connected on the outer of puncturing hole, the arc card (11) of the attached cable of the top board (10) of fixed mount inside and the upper setting of base plate (9) semi arch structure in correspondence with each other,
Described arc card (11) is connected with top board by Compress Spring, and (11) are welded with the guide pillar be located in Compress Spring with arc card, have gap between the other end of guide pillar and top board;
Or described arc card (11) is connected with top board by pretension bolt, the center that top board (10) corresponding arc (11) blocks connects pretension bolt, the end of pretension bolt is set to polished rod, the center of arc card (11) arranges the blind hole corresponding with polished rod length and diameter, and the side of blind hole arranges the retaining thread hole that communicate vertical with blind hole.
2. cable safety puncture device according to claim 1, is characterized in that: described cylinder body (1) is connected bidirectional hydraulic pump by oil inlet pipe with flowline.
3. cable safety puncture device according to claim 1, is characterized in that: described cylinder body (1) is connected one-way hydraulic pump by oil inlet pipe with flowline, and the excircle of piston is set with the return spring (3) abutted with cylinder body.
4. cable safety puncture device according to claim 1, is characterized in that: the earth stud top board (10) of described fixed mount being arranged pre-earth connection.
5. the cable safety puncture device according to any one of Claims 1 to 4, is characterized in that: described insulating knockout pin (4), insulating sleeve (5) and insulation fairlead (6) adopt insulating resin or bakelite material to make.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310308940.2A CN103414033B (en) | 2013-07-22 | 2013-07-22 | Cable safety puncture device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310308940.2A CN103414033B (en) | 2013-07-22 | 2013-07-22 | Cable safety puncture device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103414033A CN103414033A (en) | 2013-11-27 |
| CN103414033B true CN103414033B (en) | 2015-12-02 |
Family
ID=49607027
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310308940.2A Active CN103414033B (en) | 2013-07-22 | 2013-07-22 | Cable safety puncture device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103414033B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105977865A (en) * | 2016-06-22 | 2016-09-28 | 国网山东省电力公司荣成市供电公司 | Hydraulic cable grounding pricking device |
| CN106391938A (en) * | 2016-10-14 | 2017-02-15 | 国网山西省电力公司晋城供电公司 | Power cable puncturing device |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2824380Y (en) * | 2005-01-20 | 2006-10-04 | 彩虹彩色显像管总厂 | Cable short circuit gun |
| CN201904567U (en) * | 2010-12-21 | 2011-07-20 | 江苏省电力公司无锡供电公司 | Restoring device with electricity for grounded cable |
| CN202333596U (en) * | 2011-12-13 | 2012-07-11 | 衡水供电公司 | Tool for puncturing, grounding and discharging cable |
| CN202839971U (en) * | 2012-11-05 | 2013-03-27 | 衡水供电公司 | Special puncturing iron drill for 10kV cable |
| CN203398352U (en) * | 2013-07-22 | 2014-01-15 | 国家电网公司 | Safe puncturing device for cable |
-
2013
- 2013-07-22 CN CN201310308940.2A patent/CN103414033B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2824380Y (en) * | 2005-01-20 | 2006-10-04 | 彩虹彩色显像管总厂 | Cable short circuit gun |
| CN201904567U (en) * | 2010-12-21 | 2011-07-20 | 江苏省电力公司无锡供电公司 | Restoring device with electricity for grounded cable |
| CN202333596U (en) * | 2011-12-13 | 2012-07-11 | 衡水供电公司 | Tool for puncturing, grounding and discharging cable |
| CN202839971U (en) * | 2012-11-05 | 2013-03-27 | 衡水供电公司 | Special puncturing iron drill for 10kV cable |
| CN203398352U (en) * | 2013-07-22 | 2014-01-15 | 国家电网公司 | Safe puncturing device for cable |
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| Publication number | Publication date |
|---|---|
| CN103414033A (en) | 2013-11-27 |
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