CN105356080B - Spiral drop bar - Google Patents

Spiral drop bar Download PDF

Info

Publication number
CN105356080B
CN105356080B CN201510711352.2A CN201510711352A CN105356080B CN 105356080 B CN105356080 B CN 105356080B CN 201510711352 A CN201510711352 A CN 201510711352A CN 105356080 B CN105356080 B CN 105356080B
Authority
CN
China
Prior art keywords
mobile jib
drill bit
fixator
screw thread
drop bar
Prior art date
Application number
CN201510711352.2A
Other languages
Chinese (zh)
Other versions
CN105356080A (en
Inventor
任宗波
付璐
王海豹
李书群
武庆民
马宁
Original Assignee
国网山东济阳县供电公司
国家电网公司
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 国网山东济阳县供电公司, 国家电网公司 filed Critical 国网山东济阳县供电公司
Priority to CN201510711352.2A priority Critical patent/CN105356080B/en
Publication of CN105356080A publication Critical patent/CN105356080A/en
Application granted granted Critical
Publication of CN105356080B publication Critical patent/CN105356080B/en

Links

Classifications

    • HELECTRICITY
    • H01BASIC ELECTRIC ELEMENTS
    • H01RELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R4/00Electrically-conductive connections between two or more conductive members in direct contact, i.e. touching one another; Means for effecting or maintaining such contact; Electrically-conductive connections having two or more spaced connecting locations for conductors and using contact members penetrating insulation
    • H01R4/58Electrically-conductive connections between two or more conductive members in direct contact, i.e. touching one another; Means for effecting or maintaining such contact; Electrically-conductive connections having two or more spaced connecting locations for conductors and using contact members penetrating insulation characterised by the form or material of the contacting members
    • H01R4/66Connections with the terrestrial mass, e.g. earth plate, earth pin

Abstract

Spiral drop bar, the connection for facilitating ground wire during power failure operation.It includes mobile jib, drill bit, projection, fixator, extension rod and handle, the first external screw thread is provided with the top of mobile jib, the screw thread fixing holder on the mobile jib at the first external screw thread fixes swivel nut on the holder, swivel nut is threadedly coupled with mobile jib, and the first bolt is provided between swivel nut and mobile jib;Some chutes are provided with the holder, and the extension rod provided with activity in each chute is provided with the second bolt between extension rod and fixator;Drill bit is provided with the bottom of mobile jib, the second external screw thread is provided with the outer wall of drill bit, tapered portion is provided with the free end of drill bit, some projections are provided between drill bit and the first external screw thread;Handle is fixed with the top of the mobile jib.The present invention is easy to operate, easily can screw in ground, mitigates manual labor during staff's work.

Description

Spiral drop bar
Technical field
The present invention relates to electric power maintenance technical field, specifically a kind of spiral drop bar.
Background technology
Power circuit power failure operation has to first carry out electrical verification and ground connection operation, and ground connection must use ground wire.Common The drop bar of ground wire is made up of 80 centimeters of long reinforcing bars, a point of the reinforcing bar, facilitates insertion into underground, separately One headband has bolt connecting hole, in order to be connected with ground wire.But this drop bar will expend during ground is inserted Very big strength, is extracted also relatively harder during drop bar.
The content of the invention
It is an object of the invention to provide a kind of spiral drop bar, the connection for facilitating ground wire during power failure operation.
The technical scheme adopted by the invention to solve the technical problem is that:Spiral drop bar, it is characterized in that, it includes master Bar, drill bit, projection, fixator, extension rod and handle, the mobile jib are circular metallic rod, are provided with the top of the mobile jib First external screw thread, screw thread is provided with fixator on the mobile jib at first external screw thread, and spiral shell is fixed with the fixator Set, the swivel nut is threadedly coupled with mobile jib, and the first bolt is provided between the swivel nut and mobile jib;It is provided with the fixator Some chutes, the extension rod provided with activity in each chute, are provided with the second spiral shell between the extension rod and fixator Bolt;The circular drill bit set with mobile jib coaxial line is provided with the bottom of the mobile jib, provided with the on the outer wall of the drill bit Two external screw threads, the diameter of the drill bit is more than the diameter of mobile jib, and tapered portion, the tapered portion are provided with the free end of the drill bit Big end and drill bit be connected, be provided with some projections between the drill bit and the first external screw thread, it is described it is raised be pyramidal structure, and The raised small end is towards drill bit, and the raised outside diameter is between mobile jib and drill bit;At the top of the mobile jib It is fixed with handle.
Further, the fixator is rectangular shaft, and the spiral shell coordinated with mobile jib screw thread is provided with the middle part of the fixator Pit.
Further, chute is respectively equipped with the two ends of the fixator, be slidably installed extension in each chute Bar.
Further, the fixator is cirque structure, and the inwall of the fixator is provided with what is coordinated with mobile jib screw thread Internal thread, is provided with some fix bars on the outer wall of the fixator, and some extension rods are slidably arranged in fix bar respectively In.
Further, the fix bar being radially arranged along fixator, and some fix bars are circumferentially uniformly arranged.
Further, the fix bar is three.
Further, the projection is truncated cone-shaped, and the 3rd external screw thread is provided with the raised outer wall.
Further, some raised spaced sets.
Further, deep-slotted chip breaker is provided with the outer wall of the drill bit.
The beneficial effects of the invention are as follows:The spiral drop bar that the present invention is provided, in use, rotary handle just will can be grounded Rod is screwed in ground, for drop bar is inserted directly into ground, can greatly mitigate the manual labor of staff. Raised setting, can reduce the frictional force between mobile jib and ground, and screwing in ground to mobile jib plays facilitation.Remove ground connection During rod, extension rod is slammed with pin, handle is reversely rotated, you can drop bar is easily screwed out into ground.The present invention is easy to operate, can Easily screw in ground, mitigate manual labor during staff's work.
Brief description of the drawings
Fig. 1 is schematic diagram of the invention;
Fig. 2 is the A-A sectional views in Fig. 1;
Fig. 3 is the schematic diagram provided with three extension rods;
Fig. 4 is using the schematic diagram during present invention;
Operation chart when Fig. 5 is the extraction drop bar;
Fig. 6 is the schematic diagram that circular arc is set on drill bit outer wall;
In figure:1 mobile jib, 11 first external screw threads, 2 drill bits, 21 second external screw threads, 22 tapered portion, 3 is raised, 31 the 3rd outer spiral shells Line, 4 handles, 5 fixators, 51 screwed holes, 52 fix bars, 6 swivel nuts, 7 extension rods, 81 first bolts, 82 second bolts, 9 arcs Groove, 10 grounds, 12 pin.
Embodiment
As shown in Figures 1 to 6, the invention mainly comprises mobile jib 1, drill bit 2, projection 3, handle 4, fixator 5, swivel nut 6, prolong Boom 7, the first bolt 81 and the second bolt 82, the present invention will be described in detail below in conjunction with the accompanying drawings.
As shown in figure 1, mobile jib 1 is circular metallic rod, length is preferably 1 meter.It is provided with the outer wall on the top of mobile jib First external screw thread.Drill bit 2 is provided with the bottom of mobile jib, drill bit is set with mobile jib coaxial line, the substantially circular metal of drill bit Bar, is provided with the second external screw thread 21, and diameter of the diameter more than mobile jib of drill bit on the outer wall of drill bit.Set in the free end of drill bit There is tapered portion 22, tapered portion is cone, and the big end of tapered portion and the free end of drill bit are connected.Tapered portion can be independent with drill bit Manufacture, is then welded to connect;Tapered portion can also be integrally formed manufacture with drill bit.The setting of tapered portion, can facilitate drill bit drilling ground In base, the second externally threaded setting, can be easily by mobile jib precession ground so that mobile jib is easier when rotating mobile jib Into in ground.Some raised 3 are provided with mobile jib between the first external screw thread and drill bit, projection is the metalwork of truncated cone-shaped, And raised end diameter is identical with the diameter of mobile jib, raised outside diameter is between mobile jib diameter and bit diameter.If Dry projection spaced set on mobile jib, and the side where the small end towards drill bit of projection.When drop bar is inserted in ground, Drill bit is introduced into ground, and subsequent some projections are entered in ground one by one, raised because raised external diameter is less than bit diameter Outer wall and ground between pressure it is small, the resistance between mobile jib and ground can be mitigated;On the other hand, it is raised to be spaced Multiple, part soil is gathered between adjacent projection, and the movement of mobile jib is caused with avoiding soil from being clipped in when between projection and ground Larger resistance.The 3rd external screw thread 31 is provided with raised outer wall, the 3rd externally threaded setting can facilitate the drop bar to screw in In soil.
Coordinate on the first external screw thread of mobile jib and fixator 5 is installed, as shown in Fig. 2 fixator is the metallic rod of rectangle, Screwed hole 51 is provided with the middle part of fixator, fixator is threadedly coupled by the screwed hole with mobile jib.Consolidate in one end of fixator Surely there is swivel nut 6, swivel nut is to set female metal circular tube on inwall, and swivel nut is threadedly coupled with the first external screw thread on mobile jib. To realize being relatively fixed for swivel nut and mobile jib, the first bolt 81 is provided between swivel nut and mobile jib.Distinguish at the two ends of fixator Provided with chute, extension rod 7 is slidably fitted with chute, the profile of extension rod and the shape of chute are adapted, extension rod can be from Extracted out in chute, to realize being relatively fixed for extension rod and fixator, second bolt is respectively equipped with the two ends of fixator 82, the second bolt sets on the holder and withstands on the outer wall of extension rod to realize being relatively fixed for extension rod and fixator. Also it is two that the jack on the jack corresponding with the screw rod of the second bolt, and each extension rod can be set on extension rod, point The two ends of extension rod are not arranged on.
As shown in figure 3, fixator is alternatively annular, internal thread is set on the inwall of fixator.In the outer of fixator Some fix bars 52 are set on wall, and fix bar is radially arranged along fixator, and some fix bars are circumferentially uniformly arranged.It is fixed Bar can be integrally formed with fixator, also can be separately fabricated and then be welded and fixed.Chute is provided with fix bar, extension rod activity is set Put in chute.Second bolt is set between extension rod and fix bar.The number of fix bar can for three, four even more It is many.
It is fixed with the top of mobile jib at the top of handle 4, the substantially metal circular tube of handle, mobile jib and is fixed on middle handle On, both constitute " T " character form structure.
When needing to insert drop bar in ground, as shown in figure 4, the tapered portion of drill bit is placed on ground 10, Ran Hou While pressing mobile jib, rotary handle causes drill bit slowly to screw in ground, until in the raised screw-in ground on mobile jib, finally Mobile jib extend into length suitable in ground, and the suitable length meets electrical verification job requirements.
When needing to remove drop bar from ground, as shown in figure 5, unclamping the first bolt so that extension rod connects with ground Touch, then unclamp the second bolt, extension rod is extracted out from fixator, pin 12 is stepped down on extension rod, hand is then reversely rotated Handle, drop bar is screwed out from ground.
As shown in fig. 6, further to reduce the resistance between drill bit and ground, arc is provided with the outer wall in the middle part of drill bit Groove 9, the setting of deep-slotted chip breaker causes the mid diameter of drill bit to diminish, and the bit face product so contacted with ground reduces, and can reduce Resistance between ground and drill bit.

Claims (9)

1. spiral drop bar, it is characterized in that, it includes mobile jib, drill bit, projection, fixator, extension rod and handle, the mobile jib For circular metallic rod, the first external screw thread, the screw thread on the mobile jib at first external screw thread are provided with the top of the mobile jib Fixator is installed, swivel nut is fixed with the fixator, the swivel nut is threadedly coupled with mobile jib, in the swivel nut and mobile jib Between be provided with the first bolt;Some chutes are provided with the fixator, the extension rod provided with activity in each chute, The second bolt is provided between the extension rod and fixator;The circle set with mobile jib coaxial line is provided with the bottom of the mobile jib The drill bit of shape, is provided with the second external screw thread, the diameter of the drill bit is more than the diameter of mobile jib, described on the outer wall of the drill bit The free end of drill bit is provided with tapered portion, and big end and the drill bit of the tapered portion are connected, between the drill bit and the first external screw thread Provided with some projections, the projection is pyramidal structure, and the raised small end is towards drill bit, and the raised outside diameter is situated between Between mobile jib and drill bit;Handle is fixed with the top of the mobile jib.
2. spiral drop bar according to claim 1, it is characterized in that, the fixator is rectangular shaft, in the fixation The middle part of device is provided with the screwed hole coordinated with mobile jib screw thread.
3. spiral drop bar according to claim 2, it is characterized in that, it is respectively equipped with cunning at the two ends of the fixator Groove, be slidably installed extension rod in each chute.
4. spiral drop bar according to claim 1, it is characterized in that, the fixator is cirque structure, described solid The inwall for determining device is provided with the internal thread coordinated with mobile jib screw thread, and some fix bars are provided with the outer wall of the fixator, some The extension rod is slidably arranged in fix bar respectively.
5. spiral drop bar according to claim 4, it is characterized in that, the fix bar is radially arranged along fixator, And some fix bars are circumferentially uniformly arranged.
6. spiral drop bar according to claim 5, it is characterized in that, the fix bar is three.
7. spiral drop bar according to claim 1, it is characterized in that, the projection is truncated cone-shaped, described raised Outer wall is provided with the 3rd external screw thread.
8. spiral drop bar according to claim 1, it is characterized in that, some raised spaced sets.
9. spiral drop bar according to claim 1, it is characterized in that, deep-slotted chip breaker is provided with the outer wall of the drill bit.
CN201510711352.2A 2015-10-28 2015-10-28 Spiral drop bar CN105356080B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201510711352.2A CN105356080B (en) 2015-10-28 2015-10-28 Spiral drop bar

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201510711352.2A CN105356080B (en) 2015-10-28 2015-10-28 Spiral drop bar

Publications (2)

Publication Number Publication Date
CN105356080A CN105356080A (en) 2016-02-24
CN105356080B true CN105356080B (en) 2017-11-03

Family

ID=55331994

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201510711352.2A CN105356080B (en) 2015-10-28 2015-10-28 Spiral drop bar

Country Status (1)

Country Link
CN (1) CN105356080B (en)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105811126B (en) * 2016-06-01 2018-03-23 王保锋 A kind of power circuit grounding-for-lightning device
CN107293868B (en) * 2017-06-13 2019-04-12 河北金能电力科技股份有限公司 A kind of spiral grounding nail
CN111048918A (en) * 2019-12-18 2020-04-21 黄杰 Electric power grounding pile for electric power engineering with internal expansion and friction increase
CN111029805A (en) * 2019-12-24 2020-04-17 广东电网有限责任公司 Rotation type ground connection stake

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100663246B1 (en) * 2006-11-21 2007-01-02 선광엘티아이 주식회사 Ground rod having spiral appearance
CN202564563U (en) * 2012-05-17 2012-11-28 山东电力集团公司枣庄供电公司 Grounded probe
CN202905963U (en) * 2012-10-17 2013-04-24 宁夏电力公司石嘴山供电局 Spiral type ground bar
CN202839982U (en) * 2012-10-19 2013-03-27 沧州供电公司 Screwing type ground rod
CN203859241U (en) * 2014-06-10 2014-10-01 国家电网公司 Screw type grounding drill rod

Also Published As

Publication number Publication date
CN105356080A (en) 2016-02-24

Similar Documents

Publication Publication Date Title
CN201507317U (en) Anchoring-grouting anchor rope
CN201607460U (en) Withstand voltage test grounding device for GIS equipment
CN104674808B (en) Construction method of assembly type hollow grouting anchor bolt
CN205298820U (en) Utility tunnel uses pre -buried spout
CN203374598U (en) Detachable expansion bolt
CN203406438U (en) Novel ground wire insulating rod
CN202888416U (en) Electric power grounding pile
CN104295308A (en) Anchor rod drawing device and method
CN105244639A (en) Grounding device
CN109103732B (en) A kind of ground connection earth anchor connection method
CN205207384U (en) Novel screw cap
CN201050119Y (en) Wall tie bar
CN204001720U (en) Service sleeve in a kind of constructional column
US9163671B2 (en) Connecting device
CN206506779U (en) A kind of circuit-board connecting structure of monitoring system governor circuit
CN204333800U (en) Preformed armor rods is wound around wire anti-twisting equipment
CN206277312U (en) Shield electric machine shearing ring supports tool device
CN203660074U (en) Novel grounding device for hard soil
CN203161769U (en) Anti-rotating bolt for connection of standard sections of tower crane
CN205669314U (en) A kind of top board preformed hole construction mould
CN201702746U (en) Broken screw extractor
CN104290074A (en) Cotter pulling tool
CN202992537U (en) Foundation bolt
CN202917650U (en) Cylinder screw type earthing device
CN104538752A (en) Grounded drill rod easy to insert and pull and special inserting and pulling tool

Legal Events

Date Code Title Description
C06 Publication
PB01 Publication
C10 Entry into substantive examination
SE01 Entry into force of request for substantive examination
GR01 Patent grant
GR01 Patent grant