CN105305305A - Device for live replacement of cross arm and insulator string and application method - Google Patents
Device for live replacement of cross arm and insulator string and application method Download PDFInfo
- Publication number
- CN105305305A CN105305305A CN201510735372.3A CN201510735372A CN105305305A CN 105305305 A CN105305305 A CN 105305305A CN 201510735372 A CN201510735372 A CN 201510735372A CN 105305305 A CN105305305 A CN 105305305A
- Authority
- CN
- China
- Prior art keywords
- arm
- insulator string
- support
- cross
- bar
- 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.)
- Granted
Links
Landscapes
- Electric Cable Installation (AREA)
Abstract
The invention relates to the technical field of electrical machinery manufacture, specifically to a device for live replacement of a cross arm and an insulator string and an application method. The device is characterized in that the device is provided with an insulating cross rod, left and right sides of the insulating cross rod are symmetrically provided with wire supporting units which support wires on two sides of the cross arm, front and rear sides of a middle part of the insulating cross rod are respectively provided with an enclasping unit used for enclasping a telegraph pole and a wire supporting unit used for lifting a wire at the top of the telegraph pole, the three units are integrated, a cross arm can be replaced, an insulator string on the cross arm can also be replaced, and an insulator string on the top of the telegraph pole can also be replaced. The device for live replacement of the cross arm and the insulator string has the advantages of being reasonable in structure, being convenient to replace, saving manpower, being high in work efficiency, etc.
Description
Technical field
The present invention relates to electric machinery manufacture technology field, specifically a kind of rational in infrastructure, change convenient, to save the high charged for replacement cross-arm of manpower, operating efficiency and insulator string device and using method.
Background technology
As everyone knows, along with socioeconomic development, it is more and more higher that the public reliably supplies requirement for electric power, because steel pipe pole existence occupation of land space is little, small investment, the advantages such as construction speed is fast and both artistic and practical, widely apply in Construction of Intercity Network in recent years, but, along with being on the increase of power circuit, equipment component is aging gradually, transmission line operating repairs task is more and more heavier, because in line design, steel pipe pole steel tube surface is smooth, operating space is narrow, particularly cross-arm easily tilts on utility poles, cause the counterweight of the left and right sides different, this just causes the work changing insulator string and cross-arm just more and more difficult, a difficult problem is brought to equipment live service work task, realizing hotline maintenance work is at present all generally that wire is sling by hoisting device, then artificial insulator string and cross-arm to be changed, this methods engineering amount is large, increase manpower, material resources, reduce operating efficiency, change while cannot realizing cross-arm and insulator string.
Summary of the invention
The object of the invention is to solve above-mentioned the deficiencies in the prior art, provide a kind of rational in infrastructure, change convenient, to save the high charged for replacement cross-arm of manpower, operating efficiency and insulator string device and using method.
The technical solution adopted for the present invention to solve the technical problems is:
The device of a kind of charged for replacement cross-arm and insulator string and using method, it is characterized in that being provided with insulation cross bar, a left side for insulation cross bar, right bilateral symmetry is provided with the support line unit propping up cross-arm both sides electric wire, before the middle part of insulation cross bar, rear both sides are respectively equipped with holds unit and the branch line unit for mentioning electric pole top electric wire tightly for what hold electric pole tightly, described support line unit is by the anchor ear type Connection Block of adjustable position, U-shaped support wire casing and perpendicular type gear line bar composition, wherein, anchor ear type Connection Block is connected with insulation cross bar, the upper end of anchor ear type Connection Block is provided with U-shaped support wire casing, the closed end of U-shaped support wire casing is connected with anchor ear type Connection Block, the upper end of the openend of U-shaped support wire casing is provided with perpendicular type gear line bar, perpendicular type gear line bar is divided into gear line portion and counterweight part, keep off the support arm of one end near U-shaped support wire casing in line portion, another support arm side of the other end and U-shaped support wire casing is hinged through bearing pin and is connected with counterweight part, the support arm of bearing pin lower end is provided with spline pin, described unit of holding tightly is by connecting sleeve, bearing and ratchet-type bandage strainer composition, wherein, connecting sleeve is connected with insulation cross bar, the leading flank of connecting sleeve is provided with bearing, picking up the ears with pin-and-hole is provided with on the right side of bearing, pin-and-hole on picking up the ears on the right side of pin-and-hole on ratchet-type bandage strainer and bearing is hinged through latch, the one ends wound holding band tightly on ratchet-type bandage strainer is on the ratchet shaft of ratchet-type bandage strainer, the other end is drawn by ratchet shaft and is connected with on the right side of bearing, described bearing with hold interband tightly and be provided with fine setting locker, fine setting locker is made up of threaded sleeve and bolt, bolt sleeve is connected with bearing, bolt sleeve through bolt with hold band tightly and be connected, the rear end of bolt sleeve is provided with rotating handles, swivel bolt sleeve pipe realizes the fine setting of holding band tightly, described branch line unit is made up of telescopic support struts, support arm and thread-lifting hook, wherein, telescopic support struts is controlled by hydraulic jack, hydraulic jack is hand jack, telescopic support struts lower end is connected with the trailing flank of connecting sleeve, the upper end of telescopic support struts is provided with support arm, and support arm lower end is provided with the thread-lifting hook for mentioning electric wire, its using method is: first according to the position adjustments support line unit position on insulation cross bar of insulator string on cross-arm, then this device is arranged on the top of the required cross-arm changed, by the ratchet-type bandage strainer held tightly in unit of this device, fine setting locker hugs on utility poles, by insulating bar, the electric wire on the insulator string of cross-arm both sides is provoked the U-shaped support wire casing putting into support line unit again, realize changing the insulator string on cross-arm and cross-arm, pole is declined again by hydraulic jack, the thread-lifting hook in branch line unit is made to catch on electric wire, then pole is mentioned through hydraulic jack, electric wire is propped, realize the insulator string changing electric pole top, after cross-arm and replacing insulator string complete, first handle hole in gear line bar is rotated by action bars by the electric wire in support line unit, gear line bar is made to rotate the taking-up not stopping electric wire, again electric wire is taken out by action bars on the insulator string being placed in and more finishing changing, first electric wire in branch line unit to be declined pole by hydraulic jack, electric wire is placed on the insulator string more finished changing, realize the electric wire integral replacing in support line unit and branch line unit, finally take off this device.
The bearing held tightly in unit of the present invention is provided with the arcuation holder matched with electric pole, increases the connective stability of electric pole and bearing, increases the connective stability of electric pole and single unit system further.
In gear line bar in support line unit of the present invention, the end of counterweight part is provided with handle hole, manually can accurately operate when anti-backstop line bar does not rotate.
Insulation cross bar lower end of holding unit arranged on left and right sides tightly of the present invention is respectively equipped with rinforcement bar, the upper end of rinforcement bar is connected with insulation cross bar, the lower end of rinforcement bar tilts to the inside and is provided with the arc gusset plate matched with electric pole radian, the structural stability of single unit system.
The support arm upper end of the openend of the U-shaped support wire casing in branch line unit of the present invention is provided with the rebound tilted laterally, increases the controlled range that electric wire enters U-shaped support wire casing, reduces the labour intensity of staff.
The present invention is owing to being provided with insulation cross bar, the arranged on left and right sides of insulation cross bar is arranged with the support line unit propping up cross-arm both sides electric wire, the front and rear sides at middle part of insulation cross bar is respectively equipped with holds unit and the branch line unit for mentioning electric pole top electric wire tightly for what hold electric pole tightly, three unit one, cross-arm can be changed, also the insulator string on cross-arm can be changed, simultaneously also can the insulator string on more pipe electric pole top, have rational in infrastructure, change convenient, save manpower, operating efficiency advantages of higher.
Accompanying drawing explanation
Fig. 1 is structural representation of the present invention.
Fig. 2 is the front view of hold-fast body in the present invention.
Fig. 3 is the vertical view holding unit in the present invention tightly.
Fig. 4 is the front view of support line unit of the present invention.
Fig. 5 is the front view of branch line unit in the present invention.
Fig. 6 is the left view of cathetus unit of the present invention.
Embodiment
Below in conjunction with accompanying drawing, the present invention is further described:
As shown in drawings, the device of a kind of charged for replacement cross-arm and insulator string and using method, it is characterized in that being provided with insulation cross bar 1, a left side for insulation cross bar 1, right bilateral symmetry is provided with the support line unit 2 propping up cross-arm both sides electric wire, before the middle part of insulation cross bar 1, rear both sides are respectively equipped with holds unit 3 and the branch line unit 4 for mentioning electric pole top electric wire tightly for what hold electric pole tightly, described support line unit 2 is by the anchor ear type Connection Block 5 of adjustable position, U-shaped support wire casing 6 and perpendicular type gear line bar 7 form, wherein, anchor ear type Connection Block 5 is connected with insulation cross bar 1, the upper end of anchor ear type Connection Block 5 is provided with U-shaped support wire casing 6, the closed end of U-shaped support wire casing 6 is connected with anchor ear type Connection Block 5, the upper end of the openend of U-shaped support wire casing 6 is provided with perpendicular type gear line bar 7, perpendicular type gear line bar 7 is divided into gear line portion and counterweight part, keep off the support arm of one end near U-shaped support wire casing 6 in line portion, another support arm side of the other end and U-shaped support wire casing 6 is hinged through bearing pin and is connected with counterweight part, the support arm of bearing pin lower end is provided with spline pin 8, described unit 3 of holding tightly is by connecting sleeve 9, bearing 10 and ratchet-type bandage strainer 11 form, the structure of each part of ratchet-type bandage strainer 11 and the interconnected relationship between them same as the prior art, this does not repeat, wherein, connecting sleeve 9 is connected with insulation cross bar 1, the leading flank of connecting sleeve 9 is provided with bearing 10, be provided with on the right side of bearing 10 and pick up the ears 12 with pin-and-hole, the pin-and-hole of picking up the ears on the right side of the pin-and-hole on ratchet-type bandage strainer 11 and bearing on 12 is hinged through latch 13, the one ends wound holding band 16 tightly on ratchet-type bandage strainer 11 is on the ratchet shaft of ratchet-type bandage strainer 11, the other end is drawn by ratchet shaft and is connected with on the right side of bearing 10, described bearing 10 and hold tightly between band 16 and be provided with fine setting locker, fine setting locker is made up of threaded sleeve 14 and bolt 15, bolt sleeve 14 is connected with bearing 10, bolt sleeve 14 through bolt 15 with hold band 16 tightly and be connected, the rear end of bolt sleeve 14 is provided with rotating handles 25, swivel bolt sleeve pipe 14 realizes the fine setting of holding band 16 tightly, described branch line unit 4 is by telescopic support struts 17, support arm 18 and thread-lifting hook 19 form, wherein, telescopic support struts 17 is controlled by hydraulic jack 22, hydraulic jack is hand jack, telescopic support struts 17 lower end is connected with the trailing flank of connecting sleeve 9, the upper end of telescopic support struts 17 is provided with support arm 18, support arm 18 lower end is provided with the thread-lifting hook 19 for mentioning electric wire, the described bearing 10 held tightly in unit 3 is provided with the arcuation holder 20 matched with electric pole, increase the connective stability of electric pole and bearing 10, the connective stability of further increase electric pole and single unit system, in gear line bar 7 in described support line unit 2, the end of counterweight part is provided with handle hole 21, anti-backstop line bar 7 manually can accurately operate when not rotating, described holds unit 3 left side tightly, insulation cross bar 1 lower end of right both sides is respectively equipped with rinforcement bar 26, the upper end of rinforcement bar 16 is connected with insulation cross bar 1, the lower end of rinforcement bar 26 tilts to the inside and is provided with the arc gusset plate 23 matched with electric pole radian, the structural stability of single unit system, the support arm upper end of the openend of the U-shaped support wire casing 6 in described branch line unit 4 is provided with the rebound 24 tilted laterally, increase the controlled range that electric wire enters U-shaped support wire casing 6, reduce the labour intensity of staff.
The present invention in use, first according to position adjustments support line unit 2 position on insulation cross bar 1 of insulator string on cross-arm, then this device is arranged on the top of the required cross-arm changed, by the ratchet-type bandage strainer 11 held tightly in unit 3 of this device, fine setting locker hugs on utility poles, by insulating bar, the electric wire on the insulator string of cross-arm both sides is provoked the U-shaped support wire casing 6 putting into support line unit 2 again, realize changing the insulator string on cross-arm and cross-arm, pole 17 is declined again by hydraulic jack 22, the thread-lifting hook in branch line unit 4 is made to catch on electric wire, then pole 17 is mentioned through hydraulic jack 22, electric wire is propped, realize the insulator string changing electric pole top, after cross-arm and replacing insulator string complete, first handle hole 21 in gear line bar 7 is rotated by action bars by the electric wire in support line unit 2, gear line bar 7 is made to rotate the taking-up not stopping electric wire, again electric wire is taken out by action bars on the insulator string being placed in and more finishing changing, first electric wire in branch line unit 4 to be declined pole 17 by hydraulic jack 22, electric wire is placed on the insulator string more finished changing, realize the electric wire integral replacing in support line unit 2 and branch line unit 4, finally take off this device, by the device of this invention, insulation cross bar 1 in this device can be used as interim cross-arm, the operation that is energized normally can be ensured, the risk of operation can be reduced again, in the present invention, due in support line unit 3, the appropriate design of the gear line bar 7 on U-shaped support wire casing 6, enter in U-shaped support wire casing 6 at electric wire, the opening part of U-shaped support wire casing 6 pins due to its counterweight by gear line bar 7 automatically, prevent electric wire from skidding off, the taking-up that gear line bar can realize electric wire is provoked when fetched by action bars, this reasonable in design ensure that the safety of operation, prevent electric wire slippage from causing severe compromise, hold tightly in unit 3, owing to being provided with ratchet-type bandage strainer 11, fine setting locker, increase the stability be connected between this device with electric pole, and then increase processing safety, in branch line unit 4, because hydraulic jack 22 controls the lifting of pole 17, and then application solutions electric wire on move and fall, holding unit 3 left side tightly simultaneously, the insulation horizontal stroke 1 of right both sides is provided with the rinforcement bar 26 with arc 23, reinforce the stability of whole device, three unit one, cross-arm can be changed, also the insulator string on cross-arm can be changed, simultaneously also can the insulator string on more pipe electric pole top, have rational in infrastructure, it is convenient to change, save manpower, operating efficiency advantages of higher.
Claims (5)
1. the device of a charged for replacement cross-arm and insulator string and using method, it is characterized in that being provided with insulation cross bar, a left side for insulation cross bar, right bilateral symmetry is provided with the support line unit propping up cross-arm both sides electric wire, before the middle part of insulation cross bar, rear both sides are respectively equipped with holds unit and the branch line unit for mentioning electric pole top electric wire tightly for what hold electric pole tightly, described support line unit is by the anchor ear type Connection Block of adjustable position, U-shaped support wire casing and perpendicular type gear line bar composition, wherein, anchor ear type Connection Block is connected with insulation cross bar, the upper end of anchor ear type Connection Block is provided with U-shaped support wire casing, the closed end of U-shaped support wire casing is connected with anchor ear type Connection Block, the upper end of the openend of U-shaped support wire casing is provided with perpendicular type gear line bar, perpendicular type gear line bar is divided into gear line portion and counterweight part, keep off the support arm of one end near U-shaped support wire casing in line portion, another support arm side of the other end and U-shaped support wire casing is hinged through bearing pin and is connected with counterweight part, the support arm of bearing pin lower end is provided with spline pin, described unit of holding tightly is by connecting sleeve, bearing and ratchet-type bandage strainer composition, wherein, connecting sleeve is connected with insulation cross bar, the leading flank of connecting sleeve is provided with bearing, picking up the ears with pin-and-hole is provided with on the right side of bearing, pin-and-hole on picking up the ears on the right side of pin-and-hole on ratchet-type bandage strainer and bearing is hinged through latch, the one ends wound holding band tightly on ratchet-type bandage strainer is on the ratchet shaft of ratchet-type bandage strainer, the other end is drawn by ratchet shaft and is connected with on the right side of bearing, described bearing with hold interband tightly and be provided with fine setting locker, fine setting locker is made up of threaded sleeve and bolt, bolt sleeve is connected with bearing, bolt sleeve through bolt with hold band tightly and be connected, the rear end of bolt sleeve is provided with rotating handles, swivel bolt sleeve pipe realizes the fine setting of holding band tightly, described branch line unit is made up of telescopic support struts, support arm and thread-lifting hook, wherein, telescopic support struts is controlled by hydraulic jack, and telescopic support struts lower end is connected with the trailing flank of connecting sleeve, the upper end of telescopic support struts is provided with support arm, and support arm lower end is provided with the thread-lifting hook for mentioning electric wire, its using method is: first according to the position adjustments support line unit position on insulation cross bar of insulator string on cross-arm, then this device is arranged on the top of the required cross-arm changed, by the ratchet-type bandage strainer held tightly in unit of this device, fine setting locker hugs on utility poles, by insulating bar, the electric wire on the insulator string of cross-arm both sides is provoked the U-shaped support wire casing putting into support line unit again, realize changing the insulator string on cross-arm and cross-arm, pole is declined again by hydraulic jack, the thread-lifting hook in branch line unit is made to catch on electric wire, then pole is mentioned through hydraulic jack, electric wire is propped, realize the insulator string changing electric pole top, after cross-arm and replacing insulator string complete, first handle hole in gear line bar is rotated by action bars by the electric wire in support line unit, gear line bar is made to rotate the taking-up not stopping electric wire, again electric wire is taken out by action bars on the insulator string being placed in and more finishing changing, first electric wire in branch line unit to be declined pole by hydraulic jack, electric wire is placed on the insulator string more finished changing, realize the electric wire integral replacing in support line unit and branch line unit, finally take off this device.
2. the device of a kind of charged for replacement cross-arm according to claim 1 and insulator string and using method, is characterized in that the described bearing held tightly in unit is provided with the arcuation holder matched with electric pole.
3. the device of a kind of charged for replacement cross-arm according to claim 1 and insulator string and using method, is characterized in that the end of counterweight part in the gear line bar in described support line unit is provided with handle hole.
4. the device of a kind of charged for replacement cross-arm according to claim 1 and insulator string and using method, it is characterized in that the described insulation cross bar lower end of holding unit arranged on left and right sides tightly is respectively equipped with rinforcement bar, the upper end of rinforcement bar is connected with insulation cross bar, and the lower end of rinforcement bar tilts to the inside and is provided with the arc gusset plate matched with electric pole radian.
5. the device of a kind of charged for replacement cross-arm according to claim 1 and insulator string and using method, is characterized in that the support arm upper end of the openend of the U-shaped support wire casing in described branch line unit is provided with the rebound tilted laterally.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510735372.3A CN105305305B (en) | 2015-11-03 | 2015-11-03 | The device and application method of charged for replacement cross-arm and insulator chain |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510735372.3A CN105305305B (en) | 2015-11-03 | 2015-11-03 | The device and application method of charged for replacement cross-arm and insulator chain |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105305305A true CN105305305A (en) | 2016-02-03 |
| CN105305305B CN105305305B (en) | 2018-11-30 |
Family
ID=55202243
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510735372.3A Active CN105305305B (en) | 2015-11-03 | 2015-11-03 | The device and application method of charged for replacement cross-arm and insulator chain |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105305305B (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106505466A (en) * | 2016-12-06 | 2017-03-15 | 国家电网公司 | A kind of lift insulator crossarm of distribution uninterrupted operation and its operational method |
| CN109066460A (en) * | 2018-08-16 | 2018-12-21 | 国网山东省电力公司青岛供电公司 | The insulator of resistance to sleet and the more changing device and replacing options of cross-arm |
| CN110676751A (en) * | 2018-07-02 | 2020-01-10 | 国网山东省电力公司潍坊供电公司 | Cross arm extender for live replacement of insulator |
| CN112366590A (en) * | 2020-10-30 | 2021-02-12 | 国网山东省电力公司青岛供电公司 | Replacing tool and replacing method for replacing horizontally-arranged strain pole cross arm in electrified mode |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0429513A (en) * | 1990-05-22 | 1992-01-31 | Kiyuudenkou:Kk | Working rod supporter for electrical work |
| CN202260249U (en) * | 2011-09-23 | 2012-05-30 | 四川省电力公司达州电业局 | High-voltage transmission line raiser in live working |
| CN103066531A (en) * | 2013-01-14 | 2013-04-24 | 义乌市供电局 | Supporting frame for 10 KV line live wire |
| CN204131004U (en) * | 2014-11-10 | 2015-01-28 | 云南电网公司带电作业分公司 | Four loop straight line steel tube tower circle cross-arm jigs |
| CN204230773U (en) * | 2014-12-09 | 2015-03-25 | 国家电网公司 | For changing the hydraulic telescopic device of electric transmission line isolator |
| CN204400565U (en) * | 2015-01-23 | 2015-06-17 | 国网四川省电力公司成都供电公司 | A kind of wire list insulator string changes lift system |
| CN104917097A (en) * | 2015-05-28 | 2015-09-16 | 国家电网公司 | Conductor lifter |
-
2015
- 2015-11-03 CN CN201510735372.3A patent/CN105305305B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0429513A (en) * | 1990-05-22 | 1992-01-31 | Kiyuudenkou:Kk | Working rod supporter for electrical work |
| CN202260249U (en) * | 2011-09-23 | 2012-05-30 | 四川省电力公司达州电业局 | High-voltage transmission line raiser in live working |
| CN103066531A (en) * | 2013-01-14 | 2013-04-24 | 义乌市供电局 | Supporting frame for 10 KV line live wire |
| CN204131004U (en) * | 2014-11-10 | 2015-01-28 | 云南电网公司带电作业分公司 | Four loop straight line steel tube tower circle cross-arm jigs |
| CN204230773U (en) * | 2014-12-09 | 2015-03-25 | 国家电网公司 | For changing the hydraulic telescopic device of electric transmission line isolator |
| CN204400565U (en) * | 2015-01-23 | 2015-06-17 | 国网四川省电力公司成都供电公司 | A kind of wire list insulator string changes lift system |
| CN104917097A (en) * | 2015-05-28 | 2015-09-16 | 国家电网公司 | Conductor lifter |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106505466A (en) * | 2016-12-06 | 2017-03-15 | 国家电网公司 | A kind of lift insulator crossarm of distribution uninterrupted operation and its operational method |
| CN110676751A (en) * | 2018-07-02 | 2020-01-10 | 国网山东省电力公司潍坊供电公司 | Cross arm extender for live replacement of insulator |
| CN109066460A (en) * | 2018-08-16 | 2018-12-21 | 国网山东省电力公司青岛供电公司 | The insulator of resistance to sleet and the more changing device and replacing options of cross-arm |
| CN112366590A (en) * | 2020-10-30 | 2021-02-12 | 国网山东省电力公司青岛供电公司 | Replacing tool and replacing method for replacing horizontally-arranged strain pole cross arm in electrified mode |
| CN112366590B (en) * | 2020-10-30 | 2022-03-01 | 国网山东省电力公司青岛供电公司 | Replacing tool and replacing method for replacing horizontally-arranged strain pole cross arm in electrified mode |
Also Published As
| Publication number | Publication date |
|---|---|
| CN105305305B (en) | 2018-11-30 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN105305305A (en) | Device for live replacement of cross arm and insulator string and application method | |
| CN104821517A (en) | Double-pull-rod wing-shaped lead lifting device | |
| CN103928865A (en) | Manual wire lifting device for stringing construction | |
| CN105305317B (en) | Live wire hangs the instrument of insulated flexible ladder | |
| CN205039459U (en) | Change cross arm and insulator chain's device with electricity | |
| WO2012100595A1 (en) | Tool for replacing ceramic rod type insulator | |
| CN106451209B (en) | A kind of replacing insulator string auxiliary device | |
| CN208337014U (en) | A kind of charged for replacement Voltage for Insulators on HV Lines lifting block hanging point heightening device | |
| CN210779825U (en) | Device for replacing whole string of tension insulators at cross arm end and wire end of direct-current transmission line | |
| CN207170926U (en) | Engine cylinder-body suspended core fixture | |
| CN202346601U (en) | Movable balance weight hoisting device for gantry crane | |
| CN204559008U (en) | A kind of cable construction pay off rack | |
| CN204947466U (en) | Portable live line working line lifter | |
| CN204167793U (en) | Straight line steel tube tower side, double loop cross-arm jig | |
| CN204349336U (en) | Overhead-groundwire lifter | |
| CN203660422U (en) | 500 kV overhead ground wire lifting tool | |
| CN203392738U (en) | Wire coil hoisting equipment | |
| CN204079254U (en) | A kind of aluminum foil roll stone tongs | |
| CN205092486U (en) | Draw rod | |
| CN205092143U (en) | Coil suit tool equipment | |
| CN204858403U (en) | Change V -arrangement insulator hangs some fixing device to transmission line temporarily with electricity | |
| CN203545559U (en) | Electric meter box hoisting tool | |
| CN203754287U (en) | Small-sized interval dual-purpose lifting appliance | |
| CN203553744U (en) | An ultra extra high voltage AC-DC overhead transmission line ground wire optical cable armour clamp replacing apparatus | |
| CN203529713U (en) | High-voltage bushing hoisting structure |
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 |