CN205920163U - Ground resistance measure apparatus - Google Patents

Ground resistance measure apparatus Download PDF

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Publication number
CN205920163U
CN205920163U CN201620506376.4U CN201620506376U CN205920163U CN 205920163 U CN205920163 U CN 205920163U CN 201620506376 U CN201620506376 U CN 201620506376U CN 205920163 U CN205920163 U CN 205920163U
Authority
CN
China
Prior art keywords
base
holding frame
rod
runner
elevating lever
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.)
Withdrawn - After Issue
Application number
CN201620506376.4U
Other languages
Chinese (zh)
Inventor
张海峰
吴胜
许尧
廖军
余芳
吴冬晖
张晨晨
黄伟民
谢佳
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.)
CHANGZHOU XINLANLING ELECTRIC POWER ACCESSORY PLANT
MAINTENANCE Co OF STATE GRID ANHUI ELECTRIC POWER Co
State Grid Corp of China SGCC
Original Assignee
CHANGZHOU XINLANLING ELECTRIC POWER ACCESSORY PLANT
MAINTENANCE Co OF STATE GRID ANHUI ELECTRIC POWER Co
State Grid Corp of China SGCC
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 CHANGZHOU XINLANLING ELECTRIC POWER ACCESSORY PLANT, MAINTENANCE Co OF STATE GRID ANHUI ELECTRIC POWER Co, State Grid Corp of China SGCC filed Critical CHANGZHOU XINLANLING ELECTRIC POWER ACCESSORY PLANT
Priority to CN201620506376.4U priority Critical patent/CN205920163U/en
Application granted granted Critical
Publication of CN205920163U publication Critical patent/CN205920163U/en
Withdrawn - After Issue legal-status Critical Current
Anticipated expiration legal-status Critical

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Abstract

The utility model provides a ground resistance measure apparatus, including fixture, actuating mechanism, elevating system, coiling institution and intelligent resistance measurement appearance, fixture includes first base, connecting rod, first runner, second gyro wheel, first holding frame, second holding frame, connects lug and second base, and the connecting rod is installed in first base upper end, and the limit portion of first runner and second gyro wheel all is equipped with the engaging tooth, and one side that first holding frame and second holding frame are close to each other is equipped with first draw -in groove and second draw -in groove respectively. Actuating mechanism includes push rod motor and contact switch, elevating system includes a plurality of lifters and third base, installs the retaining member on the lifter, and the third pedestal mounting is in the minimum lifter upper end of external diameter, coiling institution and intelligent resistance measurement appearance are all installed on the biggest lifter of external diameter. The utility model discloses simple structure, connection and the detection of carrying out the earth connection that can be convenient.

Description

A kind of earth resistance metering device
Technical field
This utility model is related to electric power overhaul field, and in particular to a kind of earth resistance metering device.
Background technology
Before high-tension line site examining and repairing, the high-tension electricity on first open-circuit line is typically understood, safer for guaranteeing, generally Meeting single line cable one end is connected on high-tension line, and other end is connected to the earth.If now someone's maloperation or other originals Because causing high-tension electricity to be loaded on circuit suddenly, because there is cable connection high-tension line and the earth, can be with effective guarantee person peace Full Accident prevention occurs.Therefore, the earth lead plays vital effect for the life security of overhaul of the equipments personnel, above-mentioned Cable be referred to as portable short-circuit grounding wire or earth lead.In view of operation is typically under environment under high pressure, electrion is edge all the time Impedance minimal path.Therefore the earth lead must is fulfilled for certain Low ESR requirement and can be only achieved the effect of being effectively protected.According to The measurement requirement of national related ground resistance, for the accuracy requirement of the resistance value of resistance very high.
During hand, the pointer in instrumental panel is difficult to settle out hand-rail type detection means, often makes at present Into the error of reading, therefore reliability as a result reduces, and there is certain potential safety hazard, and hand-rail type ground resistance measuring instrument exists Cannot measure when having thunder and lightning or powered measured object.Need gently to take gently, after complete line in operating process, manpower shake handss need to be leaned on Handle.During also need to the gear that is zeroed and transfers, therefore operate inconvenience.And the connection of earth lead at present mainly passes through people Climbing connection, not only time-consuming, and more dangerous.
Utility model content
Based on the technical problem that background technology is present, the utility model proposes a kind of earth resistance metering device.
The utility model proposes a kind of earth resistance metering device, including clamping device, drive mechanism, elevating mechanism, Winding mechanism and intelligent electric resistance measuring instrument;
Clamping device includes first base, connecting rod, the first runner, the second roller, the first holding frame, the second holding frame, company Projection and second base is connect, connecting rod is arranged on first base upper end, and the first runner and the second roller may be rotatably mounted at connecting rod Top, the diameter parallel of the axis of the first runner and the second roller, the edge of the first runner and the second roller are equipped with engagement Tooth, the first runner and the second roller are engaged by engaging tooth, and the first holding frame and the second holding frame are separately mounted to the first runner With the second roller top, the first holding frame and the second holding frame side close to each other is respectively equipped with the first draw-in groove and the second card Groove, connection projection may be rotatably mounted at the first holding frame, and second base is may be rotatably mounted on connecting rod, and be located under connection projection Side, axis and connect the diameter parallel of projection in the axis of the first runner that second base is rotated, the second holding frame is provided with wiring Hole;First runner and the first holding frame are wholely set, and the second roller and the second holding frame are wholely set.
Drive mechanism includes push-rod electric machine and contact switch, and push-rod electric machine is in second base, and drive connection is convex Block, contact switch electrically connect push-rod electric machine, and the position in the middle of corresponding first draw-in groove of contact switch and the second draw-in groove is arranged on connecting rod On;
Elevating mechanism includes multiple elevating levers and the 3rd base, and the external diameter of elevating lever is unequal, and elevating lever is with external diameter Increase and be arranged successively, locking member is installed on elevating lever, the 3rd floor installation is in the elevating lever upper end of minimum outer diameter, first base It is removably mounted above the 3rd base;
Winding mechanism and intelligent electric resistance measuring instrument are installed on the elevating lever of largest outside diameter.
Preferably, connecting rod is provided with multiple loss of weight through holes.
Preferably, locking member is thumbscrew.
Preferably, the elevating lever periphery of largest outside diameter scribbles epoxy resin insulating layers.
Preferably, first base is provided with the first through wires hole, and the 3rd base position corresponding with the first through wires hole is provided with Two through wires holes.
Preferably, winding mechanism includes that winding roll and metal rack, metal rack are arranged on the elevating lever of largest outside diameter, Winding roll is may be rotatably mounted on metal rack, and metal rack is provided with fairlead.
When this utility model is used, earth lead is coiled on winding mechanism, and is connected with wiring hole, multiple by adjusting Position relationship between elevating lever realizes that the height of clamping device is continuously increased, when contact switch is contacted with wire or grading ring When, push-rod electric machine starts, and can limit the distance that push-rod electric machine push-and-pull connects projection by lead limit switch, and connection projection is moved Dynamic promotion the first holding frame movement, the first holding frame drive the first runner to rotate, and the first runner is by the second roller drive second Holding frame, can achieve the clamping of the first holding frame and the second holding frame to wire or grading ring, resistance measuring instrument electrical connection ground connection Line achieves a butt joint the measurement of line resistance.This utility model simple structure, in that context it may be convenient to carry out the connection and detection of earth lead.
Description of the drawings
Fig. 1 be the utility model proposes a kind of earth resistance metering device structural representation;
Fig. 2 is A partial enlarged drawings in Fig. 1.
Specific embodiment
Shown in seeing figures.1.and.2, the utility model proposes a kind of earth resistance metering device, including clamping device, drive Motivation structure, elevating mechanism, winding mechanism and intelligent electric resistance measuring instrument 5;
Clamping device includes first base 11, connecting rod 12, the first runner 13, the second roller 14, the first holding frame 15, second Holding frame 16, connection projection 17 and second base 18, connecting rod 12 are arranged on 11 upper end of first base, the first runner 13 and the second rolling The diameter parallel of the tops that wheel 14 may be rotatably mounted at connecting rod 12, the axis of the first runner 13 and the second roller 14, first turn The edge of wheel 13 and the second roller 14 is equipped with engaging tooth, and the first runner 13 and the second roller 14 are engaged by engaging tooth, and first Holding frame 15 and the second holding frame 16 are separately mounted to 14 top of the first runner 13 and the second roller, the first holding frame 15 and second The side close to each other of holding frame 16 is respectively equipped with the first draw-in groove 151 and the second draw-in groove 161, and connection projection 17 may be rotatably mounted at First holding frame 15, second base 18 are may be rotatably mounted on connecting rod 12, and are located at below connection projection 17,18 turns of second base In the axis of the first runner 13, the second holding frame 16 is provided with wiring hole 161 to the diameter parallel of dynamic axis and connection projection 17;
Drive mechanism includes push-rod electric machine 21 and contact switch 22, and push-rod electric machine 21 is in second base 18, and drives Dynamic connection projection 17, contact switch 22 electrically connect push-rod electric machine 21, corresponding first draw-in groove 151 of contact switch 22 and the second draw-in groove Position in the middle of 161 is on connecting rod 12;
Elevating mechanism includes multiple elevating levers 31 and the 3rd base 32, and the external diameter of elevating lever 31 is unequal, elevating lever 31 As external diameter increase is arranged successively, locking member 311, lifting of the 3rd base 32 installed in minimum outer diameter are installed on elevating lever 31 31 upper end of bar, first base 11 are removably mounted above the 3rd base 32;
Winding mechanism and intelligent electric resistance measuring instrument 5 are installed on the elevating lever 31 of largest outside diameter.Resistance measuring instrument 5 is by interior The low frequency constant current that direct current is changed into exchanging by portion DC/AC changers, constitutes through the first auxiliary earth pole interface and measured object interface Loop, produces exchange pressure drop on measured object, send into alternative current amplifier through the second auxiliary earth pole interface and amplify, then send through detection Enter gauge outfit to show.
When this utility model is used, earth lead is coiled on winding mechanism, and is connected with wiring hole 161, many by adjusting Position relationship between individual elevating lever 31 realizes that the height of clamping device is continuously increased, when contact switch 22 and wire or grading ring During contact, push-rod electric machine 21 starts, and can limit the distance that 21 push-and-pull of push-rod electric machine connects projection 17 by lead limit switch, The connection movement of projection 17 promotes the first holding frame 15 to move, and the first holding frame 15 drives the first runner 13 to rotate, the first runner 13 Second holding frame 16 is driven by the second roller 14, the first holding frame 15 and the second holding frame 16 is can achieve to wire or grading ring Clamping, the electrical connection earth lead of resistance measuring instrument 5 achieves a butt joint the measurement of line resistance.
In present embodiment, connecting rod 12 is provided with multiple loss of weight through holes 121, can adopt as connecting rod heavy burden is less and subtract Weight through hole 121 mitigates the overall weight of this utility model, and loss of weight through hole 121 can adopt manhole.
In present embodiment, locking member 311 is thumbscrew, is easy to manual fixation.
In present embodiment, 31 periphery of elevating lever of largest outside diameter scribbles epoxy resin insulating layers, effective protection work people The life safety of member.
In present embodiment, first base 11 is provided with the first through wires hole, and the 3rd base 32 is corresponding with the first through wires hole Position is provided with the second through wires hole, coats insulating coating in the first through wires hole and the second through wires hole, and earth lead passes through the first through wires hole The possibility that rocks of connecting wires is reduced with the second through wires hole, can all be increased and decreased an insulant in 31 upper end of all of elevating lever and be made Position-arresting disk, set wire guide on position-arresting disk, earth lead can further increase the stability of earth lead through wire guide.
In present embodiment, winding mechanism includes that winding roll 41 and metal rack 42, metal rack 42 are arranged on external diameter most On big elevating lever 31, winding roll 41 is may be rotatably mounted on metal rack 42, and metal rack 42 is provided with fairlead 421, is led to Cross the restriction wire of fairlead 421 and position occur, be further ensured that the stability of earth lead, and the effect of wire folding and unfolding can be improved Rate.
The above, only this utility model preferably specific embodiment, but protection domain of the present utility model is not Be confined to this, any those familiar with the art in the technical scope that this utility model is disclosed, according to this practicality New technical scheme and its utility model design in addition equivalent or change, should all cover in protection model of the present utility model Within enclosing.

Claims (6)

1. a kind of earth resistance metering device, it is characterised in that:Including clamping device, drive mechanism, elevating mechanism, winding mechanism With intelligent electric resistance measuring instrument (5);
Clamping device includes first base (11), connecting rod (12), the first runner (13), the second roller (14), the first holding frame (15), the second holding frame (16), connection projection (17) and second base (18), connecting rod (12) is in first base (11) End, the first runner (13) and the second roller (14) may be rotatably mounted at the top of connecting rod (12), the axis of the first runner (13) Engaging tooth is equipped with the edge of the diameter parallel of the second roller (14), the first runner (13) and the second roller (14), first turn Wheel (13) and the second roller (14) are engaged by engaging tooth, and the first holding frame (15) and the second holding frame (16) are separately mounted to the One runner (13) and the second roller (14) top, the first holding frame (15) and the second holding frame (16) side difference close to each other It is provided with the first draw-in groove (151) and the second draw-in groove (161), connection projection (17) may be rotatably mounted at the first holding frame (15), second Base (18) is may be rotatably mounted on connecting rod (12), and is located at below connection projection (17), the axis that second base (18) is rotated With connection projection (17) diameter parallel in the axis of the first runner (13), the second holding frame (16) is provided with wiring hole (161);
Drive mechanism includes that push-rod electric machine (21) and contact switch (22), push-rod electric machine (21) are arranged in second base (18), And drive connection projection (17), contact switch (22) electrical connection push-rod electric machine (21), corresponding first draw-in groove of contact switch (22) (151) position in the middle of and the second draw-in groove (161) is on connecting rod (12);
Elevating mechanism includes multiple elevating levers (31) and the 3rd base (32), and the external diameter of elevating lever (31) is unequal, elevating lever (31) as external diameter increase is arranged successively, locking member (311) is installed on elevating lever (31), the 3rd base (32) is arranged on external diameter Minimum elevating lever (31) upper end, first base (11) are removably mounted above the 3rd base (32);
Winding mechanism and intelligent electric resistance measuring instrument (5) are installed on the elevating lever (31) of largest outside diameter.
2. earth resistance metering device according to claim 1, it is characterised in that:Connecting rod (12) is provided with multiple losss of weight and leads to Hole (121).
3. earth resistance metering device according to claim 1, it is characterised in that:Locking member (311) is thumbscrew.
4. earth resistance metering device according to claim 1, it is characterised in that:Elevating lever (31) periphery of largest outside diameter Scribble epoxy resin insulating layers.
5. earth resistance metering device according to claim 1, it is characterised in that:First base (11) is provided with first and wears String holes, the 3rd base (32) position corresponding with the first through wires hole are provided with the second through wires hole.
6. earth resistance metering device according to claim 1, it is characterised in that:Winding mechanism include winding roll (41) and Metal rack (42), on the elevating lever (31) of largest outside diameter, winding roll (41) may be rotatably mounted at metal rack (42) On metal rack (42), metal rack (42) is provided with fairlead (421).
CN201620506376.4U 2016-05-24 2016-05-24 Ground resistance measure apparatus Withdrawn - After Issue CN205920163U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201620506376.4U CN205920163U (en) 2016-05-24 2016-05-24 Ground resistance measure apparatus

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201620506376.4U CN205920163U (en) 2016-05-24 2016-05-24 Ground resistance measure apparatus

Publications (1)

Publication Number Publication Date
CN205920163U true CN205920163U (en) 2017-02-01

Family

ID=57876670

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201620506376.4U Withdrawn - After Issue CN205920163U (en) 2016-05-24 2016-05-24 Ground resistance measure apparatus

Country Status (1)

Country Link
CN (1) CN205920163U (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105911359A (en) * 2016-05-24 2016-08-31 国网安徽省电力公司检修公司 Grounding resistance measuring device
CN107300634A (en) * 2017-08-20 2017-10-27 肇庆高新区黑阳科技有限公司 A kind of earth detector
CN107702687A (en) * 2017-09-27 2018-02-16 国网浙江省电力公司紧水滩水力发电厂 Monitoring device applied to transformer station's subsidence monitoring of foundation

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105911359A (en) * 2016-05-24 2016-08-31 国网安徽省电力公司检修公司 Grounding resistance measuring device
CN105911359B (en) * 2016-05-24 2019-01-01 国网安徽省电力公司检修公司 A kind of earth resistance metering device
CN107300634A (en) * 2017-08-20 2017-10-27 肇庆高新区黑阳科技有限公司 A kind of earth detector
CN107702687A (en) * 2017-09-27 2018-02-16 国网浙江省电力公司紧水滩水力发电厂 Monitoring device applied to transformer station's subsidence monitoring of foundation
CN107702687B (en) * 2017-09-27 2020-03-24 国网浙江省电力公司紧水滩水力发电厂 Monitoring device applied to transformer substation foundation settlement monitoring

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C14 Grant of patent or utility model
GR01 Patent grant
AV01 Patent right actively abandoned
AV01 Patent right actively abandoned

Granted publication date: 20170201

Effective date of abandoning: 20190101