CN110007131A - A kind of collapsible acoustooptical electroscope - Google Patents

A kind of collapsible acoustooptical electroscope Download PDF

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Publication number
CN110007131A
CN110007131A CN201910320165.XA CN201910320165A CN110007131A CN 110007131 A CN110007131 A CN 110007131A CN 201910320165 A CN201910320165 A CN 201910320165A CN 110007131 A CN110007131 A CN 110007131A
Authority
CN
China
Prior art keywords
limit sleeve
bar
shell
electroscope
collapsible
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.)
Pending
Application number
CN201910320165.XA
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Chinese (zh)
Inventor
李旭光
张雷
高哲
高贝贝
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Hebei Golden Power Polytron Technologies Inc
Original Assignee
Hebei Golden Power Polytron Technologies Inc
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Hebei Golden Power Polytron Technologies Inc filed Critical Hebei Golden Power Polytron Technologies Inc
Priority to CN201910320165.XA priority Critical patent/CN110007131A/en
Publication of CN110007131A publication Critical patent/CN110007131A/en
Pending legal-status Critical Current

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    • GPHYSICS
    • G01MEASURING; TESTING
    • G01RMEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R1/00Details of instruments or arrangements of the types included in groups G01R5/00 - G01R13/00 and G01R31/00
    • G01R1/02General constructional details
    • G01R1/04Housings; Supporting members; Arrangements of terminals
    • GPHYSICS
    • G01MEASURING; TESTING
    • G01RMEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R19/00Arrangements for measuring currents or voltages or for indicating presence or sign thereof
    • G01R19/145Indicating the presence of current or voltage
    • G01R19/155Indicating the presence of voltage

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  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Insulating Bodies (AREA)

Abstract

The invention discloses a kind of collapsible acoustooptical electroscopes, including electroscope, folding rod and insulation handle, the folding rod is connected between electroscope and insulation handle, the folding rod includes the front bar being fixedly connected with electroscope, the rear bar being connect with insulation handle and the middle bar for passing through rotation axis connection with front bar and rear bar, the limit sleeve being arranged in insulation handle is arranged in the rear bar, the limit sleeve skids off and is set in the junction of middle bar Yu front bar and rear bar out of insulation handle, the slippage state hand includes shell, the housing forward end is provided with drive end bearing bracket, rear bar is offered on the drive end bearing bracket and stretching hole that limit sleeve passes through, the limiting slot in the outside in drive end bearing bracket is provided on the inner wall for stretching out hole, front end is arranged radially the limited block being fastened in limiting slot on the outer wall of the limit sleeve.Electroscope of the present invention is examined in voltage course, and the in stable condition of telescopic rod is able to maintain, and guarantees that electroscope is in stable state, voltage of conveniently testing.

Description

A kind of collapsible acoustooptical electroscope
Technical field
The present invention relates to the technical fields of power equipment, more particularly, to a kind of collapsible acoustooptical electroscope.
Background technique
With the continuous development of economic construction of China, guarantee that successively power supply is each department of national economy to electric power Basic demand, the reliability for improving power supply have become a vital task of current power department, and power department can be regular thus Route and overhaul of the equipments and maintenance work are carried out, to improve power supply reliability, and electroscope plays an important role wherein.
High voltage electroscope is mainly used to the high voltage electric equipment for examining equipment voltage-to-ground in 1000V or more.Mesh is adopted extensively There are light emitting-type, sound-light type, windmill type three types.High voltage electroscope be typically all by detection part (indicator part or Windmill), insulated part, handshake part three parts composition.Insulated part means that self-indication device lower metal linking screw rises extremely The part that hood guard ring stops, handshake part means hood guard ring part below.Wherein insulated part, handshake part are according to voltage class Its different length it is also not identical.
Electroscope using when need vertical with measured body and contact the shape of electroscope is usually well designed to long rod, Be conducive to measure in use, but when not in use or carry when, electroscope length is larger to be not easily carried, especially It is in high altitude operation, it is difficult to meet requirement.To solve the above problems, the China that Authorization Notice No. is CN2544287 is specially Benefit discloses a kind of telescopic folding type high voltage electroscope, it mainly includes electroscope and telescopic rod, electroscope and stretch through bar it Between be equipped with fold mechanism, wherein the length of folding rod, is that the radius of telescopic rod handle adds the half of electroscope thickness, the folding There is two panels connecting plate at folding rod both ends in folded mechanism, and telescopic rod and electroscope connecting plate are clipped in the middle and are connected by screw to.On Electroscope is stated during prolonged use, it may appear that the case where telescopic rod junction loosens, during examining voltage There is electroscope to occur swinging situation, to influence inspection result.
Summary of the invention
The object of the present invention is to provide a kind of collapsible acoustooptical electroscopes, examine in voltage course, are able to maintain telescopic rod It is in stable condition, guarantee electroscope be in stable state, voltage of conveniently testing.
Foregoing invention purpose of the invention has the technical scheme that
A kind of collapsible acoustooptical electroscope, including electroscope, folding rod and insulation handle, the folding rod be connected to electroscope and Insulate between handle, the folding rod include the front bar being fixedly connected with electroscope, with insulate the rear bar that connect of handle and with Front bar and rear bar pass through the middle bar of rotation axis connection, and the limit sleeve being arranged in insulation handle is arranged in the rear bar, described Limit sleeve skids off and is set in the junction of middle bar Yu front bar and rear bar out of insulation handle.
By using above-mentioned technical proposal, electroscope when in use, needs to be unfolded, folding rod is drawn Directly, front bar, middle bar and rear bar are located along the same line, and then pull out limit sleeve out of insulation handle, limit sleeve can cover At the connecting node of front bar, middle bar and rear bar, the rotation of front bar, middle bar and rear bar is limited, guarantees that electroscope is using It will not shake in the process.
The present invention is further arranged to: the slippage state hand includes shell, and the housing forward end is provided with drive end bearing bracket, described Rear bar is offered on drive end bearing bracket and stretching hole that limit sleeve passes through, be provided with inside and outside drive end bearing bracket on the inner wall for stretching out hole The limiting slot of side, front end is arranged radially the limited block being fastened in limiting slot on the outer wall of the limit sleeve.
By using above-mentioned technical proposal, hole and limiting slot are stretched out in setting on drive end bearing bracket, and limit sleeve is facilitated to stretch out of shell It out and stores, limited block is set on limit sleeve, when limit sleeve is accommodated in shell, limit sleeve is stuck in limiting slot by limited block In, limit sleeve is fixed, electroscope convenient for folding.
The present invention is further arranged to: being provided on the rear end outer wall of the limit sleeve identical with limited block cross sectional shape Fixture block, when the limit sleeve is set on folding rod, the fixture block is fastened in limiting slot.
By using above-mentioned technical proposal, fixture block is arranged in limit sleeve rear end, when limit sleeve is set on folding rod, by card Block is stuck in limiting slot, so that limit sleeve be fixed, can prevent limit sleeve from rotating or moving up and down and influence folding rod It is fixed.
The present invention is further arranged to: the rear end of the limit sleeve is provided with outer ring size and is greater than outside stretching hole and limiting slot The stop collar of size is enclosed, the stop collar is circular ring shape, and fitting is on the inner wall of the housing.
By using above-mentioned technical proposal, stop collar is arranged in limit sleeve rear end, and limit sleeve rear end can be stuck in by stop collar In shell, facilitate the reset of limit sleeve.
The present invention is further arranged to: the fixture block is connected on stop collar, described when the fixture block is stuck in limiting slot Stop collar is fitted on the inner wall of drive end bearing bracket.
By using above-mentioned technical proposal, it is ensured that when stop collar is attached on drive end bearing bracket, fixture block can be stuck in limiting slot, into And limit sleeve is fixed.
The present invention is further arranged to: the length of the limit sleeve is greater than the length of middle bar, and is located at less than folding rod and tests Leakage length between electric appliance and insulation handle.
By using above-mentioned technical proposal, it is ensured that limit sleeve can cover the connecting node in middle bar and front bar and rear bar, protect In use, the tie point of folding rod will not rotate results electric appliance.
The present invention is further arranged to: the fixing bolt across its axle center is radially equipped on the shell, it is described solid Determine bolt and sequentially pass through shell, limit sleeve and rear bar from hull outside, and be pierced by out of shell, the limit sleeve rear end is opposite to be set The sliding slot backward there are two opening is set, perforation is provided in the rear bar, the fixing bolt passes through sliding slot and perforation.
By using above-mentioned technical proposal, rear bar and shell are fixed by fixing bolt, ensure that shell and folding The fastness of folded bar connection, limit sleeve when moving will not pull out rear bar out of shell;Sliding slot is set on limit sleeve, it is fixed Bolt is threaded through in sliding slot, and the movement of limit sleeve is made not will receive the influence of fixing bolt.
The present invention is further arranged to: counter sink there are two being oppositely arranged on the outer wall of the shell, the fixing bolt Both ends be located in counter sink.
By using above-mentioned technical proposal, the both ends of fixing bolt are located in counter sink, fixing bolt will not be made in shell Surface forms protrusion, will not influence manpower grip slippage state hand.
The present invention is further arranged to: the housing rear end is provided with rear end cap, is to outwardly protrude among the rear end cap Elastomer, be provided with the mandril for being connected to limit sleeve rear end on the inside of the elastomer, press elastomer, mandril pushes forward limit Position set.
By using above-mentioned technical proposal, top cover withstands on the rear end of limit sleeve, when needing to take out limit sleeve, to shell Elastomer is inside pressed, mandril pushes forward limit sleeve, and limit sleeve front end is stretched out out of shell, is then pulled along limit sleeve, covers On folding rod;Mandril can reset under the effect of the elastic force of elastomer.
The present invention is further arranged to: external screw thread is provided on the outer wall of the housing rear end, the rear end cap passes through spiral shell Line is connected on shell.
By using above-mentioned technical proposal, rear end cap is detachably connected with shell, when the intracorporal structure of shell when something goes wrong, Rear end cap can be taken off, the intracorporal structure of shell is repaired or replaced.
In conclusion advantageous effects of the invention are as follows:
1, limit can be fixed by the way that limit sleeve is arranged in folding rod by the present invention, when folding rod expansion, can guarantee to roll over Folded bar be in straight configuration, and when carrying out voltage detecting, the electroscope of end will not be swung, whole equipment when storing, Limit sleeve is collapsed into insulation handle, will not influence the folding and collection of electroscope.
2, the front-end and back-end of limit sleeve can be stuck on shell, and though electroscope using or storage when, can Enough guarantee that electroscope is fixed, ensure that the normal storage and use of electroscope.
3, dismountable rear end cap is arranged in housing rear end, and the disassembly of insulation handle can be carried out by removing rear end cap, It can be realized the replacement and maintenance of structure in insulation handle;Using on rear end cap elastomer and mandril realize the control of limit sleeve System, keeps the stretching of limit sleeve and reclaimer operation simpler.
Detailed description of the invention
Status diagram when Fig. 1 is electroscope of the present invention expansion.
Fig. 2 is the status diagram that limit sleeve covers when on folding rod in electroscope of the present invention.
Fig. 3 is the structural schematic diagram of limit sleeve in electroscope of the present invention.
Structural schematic diagram when Fig. 4 is limit sleeve storage in insulation handle.
Fig. 5 is status diagram when limit sleeve front end is located in stretching hole.
Fig. 6 is the structural schematic diagram of insulation handle when limit sleeve stretches out.
In figure, 1, electroscope;2, folding rod;21, front bar;22, rear bar;23, middle bar;3, limit sleeve;31, limited block;32, Fixture block;33, stop collar;34, sliding slot;4, shell;41, counter sink;5, drive end bearing bracket;51, hole is stretched out;52, limiting slot;6, rear end Lid;61, elastomer;62, mandril;7, fixing bolt.
Specific embodiment
Below in conjunction with attached drawing, invention is further described in detail.
It referring to Fig.1, is a kind of collapsible acoustooptical electroscope disclosed by the invention, including electroscope 1, folding rod 2 and insulation Handle, folding rod 2 are connected between electroscope 1 and insulation handle, and insulation handle includes shell 4, drive end bearing bracket 5 and rear end cap 6 again. Shell 4 uses dielectric resin material, and outer cover rubber sleeve is equipped with limit sleeve 3 in shell 4, and 3 sets of limit sleeve in folding rod 2 On, it can axially outwardly move, cover in the part that folding rod 2 leaks outside, cover and the connecting node of fixed fold bar 2, on shell 4 It is connected with fixing bolt 7, folding rod 2 is fixedly connected with shell 4.Drive end bearing bracket 5 and 4 integral structure of shell, are fixed on shell 4 Front end, rear end cap 6 are detachably connected on the rear end of shell 4.
Folding rod 2 include the front bar 21 being fixedly connected with electroscope 1, with insulation the handle rear bar 22 and and front bar that connect 21 and the middle bar 23 that connects of rear bar 22, middle bar 23 is respectively with front bar 21 and rear bar 22 by rotation axis connection, and rotation axis It is axial identical, so that folding rod 2 is folded into U-shaped, so that electroscope 1 and insulation handle 2 is fit together, shorten entire dress The length set, facilitates and is stored.The length of limit sleeve 3 is greater than the length of middle bar 23, and is less than folding rod 2 and is located at electroscope 1 Leakage length between insulation handle.The rear end of rear bar 22 is fixed in shell 4, and front end is protruding from drive end bearing bracket 5, rear bar 22 rear end is provided with the perforation axially penetrated through, and fixing bolt 7 radially breaks through the side wall of shell 4 outside shell 4, after passing through The perforation of 22 rear end of bar, is then pierced by from the other side of shell 4, and rear bar 22 is fixed on shell 4 by bolt;After avoiding Bar 22 is swung, and can be fixed by two fixing bolts 7;It is heavy there are two being oppositely arranged on the outer wall of shell 4 The both ends of head bore 41, fixing bolt 7 are located in counter sink 41, prevent 7 both ends of fixing bolt from protruding in 4 outer wall of shell and influence people Hand grip.
Referring to Fig.1, when the present apparatus is stored, limit sleeve 3 is arranged in shell 4, and is set in rear bar 22, limit sleeve 3 Front end is stuck on drive end bearing bracket 5, will not influence the folding of folding rod 2.
Referring to Fig.1 with 2, when in use, first folding rod 2 is unfolded for the present apparatus, and limit sleeve 3 is skidded off out of shell 4, limits 3 sets of the set connecting nodes in middle bar 23 and front bar 21 and rear bar 22 fix connecting node, prevent electroscope 1 from existing In use process, the connecting node of folding rod 2 rotates.
Referring to Fig. 3, limit sleeve 3 is hollow plastic round tube, and front end is arranged radially that there are two limited blocks on the outer wall of limit sleeve 31, two limited blocks 31 are symmetrical arranged on 3 outer wall of limit sleeve, and front end is flushed with the front end of limit sleeve 3.The rear end of limit sleeve 3 There are two fixture blocks 32 for setting on outer wall, and fixture block 32 is identical as the cross sectional shape of limited block 31, and front-rear position is opposite.Limit sleeve 3 Restraining position ring block 33 is arranged in rear end face, and stop collar 33 is circular ring shape, is coaxially disposed with limit sleeve 3, and diameter is greater than limit sleeve 3 Diameter, the rear end of fixture block 32 are connected on stop collar 33.3 rear end of limit sleeve is oppositely arranged the sliding slot 34 there are two opening backward, Sliding slot 34 is in U-shape, and opening extends through the rear end face of limit sleeve 3, and setting position is staggered with fixture block 32.
Referring to Fig. 3 and 4, limit sleeve 3 is located in shell 4, and front end is stuck on drive end bearing bracket 5 by limited block 31, and rear end is logical Stop collar 33 is crossed to be fitted on the inner wall of shell 4.Fixing bolt 7 sequentially passes through shell 4, limit sleeve 3 and rear bar outside shell 4 22, and be pierced by out of shell 4, fixing bolt 7 is passed through out of two sliding slots 34, and the movement of limit sleeve 3 is made not will receive fixed spiral shell The influence of bolt 7.
Referring to Fig. 4, it is provided with external screw thread on the outer wall of 4 rear end of shell, internal screw thread is provided on 6 inner wall of rear end cap, after making End cap 6 is threadedly attached on shell 4.The elastomer 61 outwardly protruded is set as among 6 rear portion of rear end cap, elastomer 61 Inside is connected with mandril 62, and mandril 62 is hollow stem, and axial identical as the axial direction of shell 4, front end is connected to 3 rear end of limit sleeve On stop collar 33, elastomer 61 is pressed forward, and mandril 62 moves forward, and pushes limit sleeve 3 forward, and mandril 62 can be in elastomer 61 It is resetted under the action of screen resilience.
Referring to Figure 4 and 5, stretching hole 51 is offered among drive end bearing bracket 5, rear bar 22 and limit sleeve 3 are pierced by from hole 51 is stretched out, stretch Portal 51 diameter it is identical as the outer diameter of limit sleeve 3;Stretching out setting on the inner wall in hole 51, there are two symmetrical limiting slot 52, limits The outside in drive end bearing bracket 5 of slot 52,31 snap-fit of limited block of 3 front end of limit sleeve, can be by limit sleeve 3 in limiting slot 52 It is fixed.
Referring to Fig. 6, limit sleeve 3 can expose from drive end bearing bracket 5 under the pushing of mandril 62, be pulled along limit sleeve 3, limit Set 3 packet in position is at the connecting node of folding rod 2, and fixture block 32 is stuck in limiting slot 52, and stop collar 33 is fitted in the inner wall of drive end bearing bracket 5 On, prevent limit sleeve 3 from dropping out out of shell 1.The present apparatus has been used, limit sleeve 3 has been back into shell 4.
The embodiment of present embodiment is presently preferred embodiments of the present invention, not limits protection of the invention according to this Range, therefore: the equivalence changes that all structures under this invention, shape, principle are done, should all be covered by protection scope of the present invention it It is interior.

Claims (10)

1. a kind of collapsible acoustooptical electroscope, including electroscope (1), folding rod (2) and insulation handle, the folding rod (2) is even It connects between electroscope (1) and insulation handle, it is characterised in that: the folding rod (2) includes being fixedly connected with electroscope (1) Front bar (21), the rear bar (22) being connect with insulation handle and the middle bar for passing through rotation axis connection with front bar (21) and rear bar (22) (23), be arranged on the rear bar (22) be arranged in insulation handle in limit sleeve (3), the limit sleeve (3) from insulation handle Inside skid off and be set in the junction of middle bar (23) Yu front bar (21) and rear bar (22).
2. a kind of collapsible acoustooptical electroscope according to claim 1, it is characterised in that: the slippage state hand includes shell (4), shell (4) front end is provided with drive end bearing bracket (5), and rear bar (22) is offered on the drive end bearing bracket (5) and limit sleeve (3) is worn The stretching hole (51) crossed is provided with the limiting slot (52) in the outside in the drive end bearing bracket (5), institute on the inner wall for stretching out hole (51) It states front end on the outer wall of limit sleeve (3) and is arranged radially the limited block (31) being fastened in limiting slot (52).
3. a kind of collapsible acoustooptical electroscope according to claim 2, it is characterised in that: the rear end of the limit sleeve (3) Fixture block (32) identical with limited block (31) cross sectional shape is provided on outer wall, the limit sleeve (3) is set on folding rod (2) When, the fixture block (32) is fastened in limiting slot (52).
4. a kind of collapsible acoustooptical electroscope according to claim 3, it is characterised in that: the rear end of the limit sleeve (3) It is provided with outer ring size and is greater than the stop collar (33) for stretching out hole (51) and limiting slot (52) outer ring size, the stop collar (33) is Circular ring shape is fitted on the inner wall of shell (4).
5. a kind of collapsible acoustooptical electroscope according to claim 4, it is characterised in that: the fixture block (32) is connected to limit On position ring (33), when the fixture block (32) is stuck in limiting slot (52), the stop collar (33) is fitted in the inner wall of drive end bearing bracket (5) On.
6. a kind of collapsible acoustooptical electroscope according to claim 1, it is characterised in that: the length of the limit sleeve (3) Greater than the length of middle bar (23), and it is less than the leakage length that folding rod (2) are located at electroscope (1) between the handle that insulate.
7. a kind of collapsible acoustooptical electroscope according to claim 2, it is characterised in that: on the shell (4) radially It is equipped with the fixing bolt (7) across its axle center, the fixing bolt (7) sequentially passes through shell (4), limit outside shell (4) Position set (3) and rear bar (22), and being pierced by out of shell (4), limit sleeve (3) rear end are oppositely arranged that there are two be open backward Sliding slot (34), perforation is provided on the rear bar (22), and the fixing bolt (7) passes through sliding slot (34) and perforates.
8. a kind of collapsible acoustooptical electroscope according to claim 7, it is characterised in that: on the outer wall of the shell (4) There are two being oppositely arranged counter sink (41), the both ends of the fixing bolt (7) are located in counter sink (41).
9. a kind of collapsible acoustooptical electroscope according to claim 2, it is characterised in that: shell (4) the rear end setting Have rear end cap (6), the elastomer (61) outwardly protruded among the rear end cap (6), is provided on the inside of the elastomer (61) It is connected to the mandril (62) of limit sleeve (3) rear end, is pressed elastomer (61), mandril (62) pushes forward limit sleeve (3).
10. a kind of collapsible acoustooptical electroscope according to claim 9, it is characterised in that: outside shell (4) rear end External screw thread is provided on wall, the rear end cap (6) is threadedly attached on shell (4).
CN201910320165.XA 2019-04-19 2019-04-19 A kind of collapsible acoustooptical electroscope Pending CN110007131A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201910320165.XA CN110007131A (en) 2019-04-19 2019-04-19 A kind of collapsible acoustooptical electroscope

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201910320165.XA CN110007131A (en) 2019-04-19 2019-04-19 A kind of collapsible acoustooptical electroscope

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CN110007131A true CN110007131A (en) 2019-07-12

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113325223A (en) * 2021-05-28 2021-08-31 贵州电网有限责任公司 Telescopic operating rod based on load electroscope
CN113899938A (en) * 2021-10-25 2022-01-07 广东电网有限责任公司 High-voltage electricity testing rod convenient to carry

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3202554C1 (en) * 1982-01-27 1983-05-19 Arcus Elektrotechnik Alois Schiffmann GmbH, 8000 München High-voltage tester
CN2544287Y (en) * 2002-05-30 2003-04-09 王宝巨 Telescopic folding type high-voltage detector
CN101638125A (en) * 2008-07-30 2010-02-03 上海尚格自行车有限公司 Folding handlebar supporting tube for bicycle
CN203705480U (en) * 2013-12-05 2014-07-09 国家电网公司 Telescopic dedicated insulating supporting rod for high-voltage test
CN106741457A (en) * 2016-12-24 2017-05-31 陈勇 The folding of bicycle sleeve, telescoping mechanism
CN107700931A (en) * 2017-09-22 2018-02-16 国家电网公司 A kind of electric power purse seine support

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3202554C1 (en) * 1982-01-27 1983-05-19 Arcus Elektrotechnik Alois Schiffmann GmbH, 8000 München High-voltage tester
CN2544287Y (en) * 2002-05-30 2003-04-09 王宝巨 Telescopic folding type high-voltage detector
CN101638125A (en) * 2008-07-30 2010-02-03 上海尚格自行车有限公司 Folding handlebar supporting tube for bicycle
CN203705480U (en) * 2013-12-05 2014-07-09 国家电网公司 Telescopic dedicated insulating supporting rod for high-voltage test
CN106741457A (en) * 2016-12-24 2017-05-31 陈勇 The folding of bicycle sleeve, telescoping mechanism
CN107700931A (en) * 2017-09-22 2018-02-16 国家电网公司 A kind of electric power purse seine support

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113325223A (en) * 2021-05-28 2021-08-31 贵州电网有限责任公司 Telescopic operating rod based on load electroscope
CN113325223B (en) * 2021-05-28 2022-05-20 贵州电网有限责任公司 Telescopic operating rod based on load electroscope
CN113899938A (en) * 2021-10-25 2022-01-07 广东电网有限责任公司 High-voltage electricity testing rod convenient to carry

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Application publication date: 20190712