CN106168111B - Equipotential live line work special isolation hanging ladder - Google Patents
Equipotential live line work special isolation hanging ladder Download PDFInfo
- Publication number
- CN106168111B CN106168111B CN201610632525.6A CN201610632525A CN106168111B CN 106168111 B CN106168111 B CN 106168111B CN 201610632525 A CN201610632525 A CN 201610632525A CN 106168111 B CN106168111 B CN 106168111B
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- CN
- China
- Prior art keywords
- pedestal
- montant
- bar
- support bar
- hanging ladder
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Classifications
-
- E—FIXED CONSTRUCTIONS
- E06—DOORS, WINDOWS, SHUTTERS, OR ROLLER BLINDS IN GENERAL; LADDERS
- E06C—LADDERS
- E06C1/00—Ladders in general
- E06C1/02—Ladders in general with rigid longitudinal member or members
- E06C1/34—Ladders attached to structures, such as windows, cornices, poles, or the like
-
- E—FIXED CONSTRUCTIONS
- E06—DOORS, WINDOWS, SHUTTERS, OR ROLLER BLINDS IN GENERAL; LADDERS
- E06C—LADDERS
- E06C1/00—Ladders in general
- E06C1/02—Ladders in general with rigid longitudinal member or members
- E06C1/38—Special constructions of ladders, e.g. ladders with more or less than two longitudinal members, ladders with movable rungs or other treads, longitudinally-foldable ladders
-
- E—FIXED CONSTRUCTIONS
- E06—DOORS, WINDOWS, SHUTTERS, OR ROLLER BLINDS IN GENERAL; LADDERS
- E06C—LADDERS
- E06C7/00—Component parts, supporting parts, or accessories
-
- E—FIXED CONSTRUCTIONS
- E06—DOORS, WINDOWS, SHUTTERS, OR ROLLER BLINDS IN GENERAL; LADDERS
- E06C—LADDERS
- E06C7/00—Component parts, supporting parts, or accessories
- E06C7/10—Reinforcements for ladders
-
- E—FIXED CONSTRUCTIONS
- E06—DOORS, WINDOWS, SHUTTERS, OR ROLLER BLINDS IN GENERAL; LADDERS
- E06C—LADDERS
- E06C7/00—Component parts, supporting parts, or accessories
- E06C7/48—Ladder heads; Supports for heads of ladders for resting against objects
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02G—INSTALLATION OF ELECTRIC CABLES OR LINES, OR OF COMBINED OPTICAL AND ELECTRIC CABLES OR LINES
- H02G1/00—Methods or apparatus specially adapted for installing, maintaining, repairing or dismantling electric cables or lines
- H02G1/02—Methods or apparatus specially adapted for installing, maintaining, repairing or dismantling electric cables or lines for overhead lines or cables
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Architecture (AREA)
- Structural Engineering (AREA)
- Ladders (AREA)
Abstract
The invention discloses a kind of equipotential live line work special isolation hanging ladder, belong to electric power operation equipment technical field, including pedestal, also include the stool plate for taking and the support bar for stool for supporting plate, the side of stool plate is rotationally connected with pedestal, one end of support bar is rotationally connected with pedestal and coordinated when in use with stool plate for fixing stool for supporting plate positioned at stool plate and the lower section of pedestal junction, the other end of support bar.Insulation hanging ladder provided by the invention be rotatablely connected stool plate and the support bar for stool for supporting plate on pedestal, the structure more hommization of hanging ladder, can be sitting on stool plate during operating personnel's discrepancy equipotential live electric cable, comfort significantly improves.In addition, operating personnel disengaging when do not have to expend great effort to make hanging ladder keep balance, to operating personnel control skill requirement substantially reduce, operating personnel pass in and out when expend it is physical small, be easy to guarantee operational security.
Description
Technical field
The present invention relates to electric power operation equipment technical field, more particularly to a kind of insulating hanging for being exclusively used in equipotential live line work
Ladder.
Background technology
According to the principles of electric and electronic engineering, equipotential is equipotential, if with 2 points in an alive circuit without potential difference, this
Point-to-point transmission does not have electric current, and this 2 points potential is equal.Equipotential live line work in electric power operation is exactly to utilize this principle, makes operation
The current potential at each position of personnel is equal all the time with the current potential with a wire, between the two in the absence of potential difference, does not have in operation process
Electric current flows through operating personnel, so as to ensure the personal safety of operating personnel.
At present, when operating personnel is using swinging into method into live wire progress equipotential live line work, general seating insulation
" scholar " font hanging ladder passes in and out equipotential live wire, and the structure of such a hanging ladder is simple, but following defect when in use be present：
1st, being limited by hanging ladder " scholar " character form structure, operating personnel needs higher control skill when taking hanging ladder disengaging,
Otherwise operating personnel is not easy to bring himself into poised state in operation process, influences normal operation, and the hanging ladder of such a structure
It is only applicable to the more modest operating personnel of body type；
2nd, when such a hanging ladder is used for extra high voltage line operation, because the tower head size of extra high voltage line is larger, potential transfer
Time-consuming for process, and operating personnel takes the time length of hanging ladder, and therefore, operating personnel needs to control the time length of balance, disappears
Expend bodily strength big, and security is relatively low；
When the 3rd, carrying out equipotential live line work to extra high voltage line, operating personnel needs to carry with electric potential transferring stick, due to
It can not be hung up on " scholar " font hanging ladder without auxiliary hanging point, electric potential transferring stick on hanging ladder, operating personnel need to hold current potential all the time and turn
Rod is moved, so increases operation difficulty；
4th, " scholar " font hanging ladder uses single suspension centre structure, and operating personnel can produce during taking hanging ladder and swinging and spin now
As, and the uncontrollable rotation direction of operating personnel, it is unfavorable for operating.
The content of the invention
In order to solve shortcoming and defect present in above-mentioned prior art, the invention provides a kind of easy to use and safe
The high equipotential live line work special isolation hanging ladder of property.
To achieve these goals, equipotential live line work special isolation hanging ladder provided by the invention, including pedestal, in addition to use
In the stool plate of seating and support bar for stool for supporting plate, the side of stool plate is rotationally connected with pedestal, and one end of support bar rotates
It is connected to pedestal and coordinates when in use with stool plate for solid positioned at stool plate and the lower section of pedestal junction, the other end of support bar
Determine stool for supporting plate.
Preferably, the support bar other end is connected to stool plate, the end of the support bar other end by pin rod when in use
Provided with the through hole coordinated with pin rod, stool plate bottom surface is provided with two fixations that are downwardly projecting and coordinating with support bar other end end
Portion, fixed part are provided with the fixing hole coordinated with pin rod.
Preferably, the pedestal includes montant, the push rod located at montant top, the horizontal stroke between montant top and bottom
Bar, push rod are provided with least two suspension ring.
Preferably, the pedestal also includes the bottom bar located at montant bottom, and pedestal is in " king " font or " nonyl " font.
Preferably, the bottom of the montant is provided with the deck for being used for collapsing support bar, and deck includes coordinating with montant and is in
The deck body of tubular, the circumferential outside of deck body are provided with the snap arm of two parallel and symmetricals, and snap arm is away from deck body
End be provided with opposite side snap arm protrusion clamping it is raised.
Preferably, the equipotential live line work special isolation hanging ladder also includes the pole socket and pin for connection support bar and pedestal
Axle, pole socket includes coordinating with montant and tubular pole socket body, and the circumferential outside of pole socket body is provided with two parallel and symmetricals
Linking arm, linking arm is provided with the pin-and-hole coordinated with bearing pin, and the end of support bar one end is provided with the connecting hole coordinated with bearing pin,
One end of support bar is by the mating connection with bearing pin and pole socket in montant bottom, and pole socket is located at the top of bottom bar.
Preferably, the stool plate is provided with the sleeve coordinated with cross bar both ends at the both ends that side is connected with pedestal, and stool plate leads to
The cooperation for crossing sleeve and cross bar is rotationally connected with pedestal.
Preferably, the pedestal also includes tilting the bracing piece located between push rod and montant, and the top of bracing piece is fixed
The end of push rod is connected to, the bottom of bracing piece is fixedly connected on the top of montant.
Preferably, the push rod, bottom bar and cross bar use identical mounting structure, include the joint being fixed on montant
And it is fixedly connected on the quarter butt of joint；Joint is in " ten " font, including all with montant cooperation and tubular fixed cover, fixed cover
The galianconism that two edges stretch out perpendicular to fixed cover length direction is arranged with to outer wall, quarter butt is fixed by fastener to be connected
It is connected to galianconism.
Preferably, the spacing between the push rod and cross bar is 0.5m~0.8m, and the spacing between cross bar and bottom bar is
The length of 0.38m~0.5m, push rod and cross bar is 0.35m~0.6m, and the length of bottom bar is 0.27m~0.4m.
After adopting the above technical scheme, equipotential live line work special isolation hanging ladder provided by the invention has the following advantages that：
1st, stool plate and the support bar for stool for supporting plate, the structure more hommization of hanging ladder, operation are rotatablely connected on pedestal
It can be sitting on stool plate during personnel's discrepancy equipotential live electric cable, comfort significantly improves.In addition, operating personnel is passing in and out
Shi Buyong expends great effort to make hanging ladder keep balance, and the requirement for controlling skill to operating personnel substantially reduces, operation people
Member disengaging when expend it is physical small, be easy to guarantee operational security.
2nd, the support bar other end fixes stool for supporting plate when in use by the cooperation of pin rod and fixed part, when not in use by pin
Bar detaches the fixed part and support bar of stool plate, and stool plate and support bar rotation are collapsed, and reduces the overall volume of hanging ladder, is easy to take
Put.
The 3rd, at least two suspension ring are set on push rod, operating personnel is not in situation about spinning swinging fashionable hanging ladder, is easy to
Operation, stability in use are good.Bottom bar is arranged on the bottom of montant, can be used as foot-driven lever, operating personnel is in operation process
In both feet can be rested on the both sides of bottom bar respectively, effectively increase the riding comfort of insulation hanging ladder.
The 4th, the deck coordinated with support bar is set on montant, when not in use, support bar is stuck in two snap arm of deck to hanging ladder
Between, the clamping projection in snap arm has position-limiting action, avoids support bar from arbitrarily being rotated after collapsing, and improving hanging ladder does not make integrally
With the stability under state.
5th, by the mating connection of pole socket and bearing pin in montant bottom, attachment structure is simple, is easy to dismount for support bar one end.
The 6th, bracing piece is set between push rod and montant, be easy to improve the overall intensity of hanging ladder, hanging ladder is met requirement.
7th, operating personnel can hang up the electric potential transferring stick of carrying on push rod or bracing piece in operation process, so as to
Operating personnel vacates both hands and operated, operation difficulty relative reduction, effectively increases operation correctness and stability.
8th, the structure that push rod, bottom bar and cross bar are coordinated using joint and quarter butt, the composition of pedestal is simple in construction, and is easy to
Fast assembling-disassembling and maintenance.
9th, insulated the reasonable in design of hanging ladder, and riding comfort is improved on the premise of requirement is met.
Brief description of the drawings
Fig. 1 is overall structure signal of the equipotential live line work special isolation hanging ladder embodiment one of the present invention when stool plate deploys
Figure；
Fig. 2 is overall structure signal of the equipotential live line work special isolation hanging ladder embodiment one of the present invention when stool plate collapses
Figure；
Fig. 3 is the structural representation of deck in equipotential live line work special isolation hanging ladder embodiment one of the present invention；
Fig. 4 is the structural representation of pole socket in equipotential live line work special isolation hanging ladder embodiment one of the present invention；
Fig. 5 is the structural representation of bracing piece in equipotential live line work special isolation hanging ladder embodiment one of the present invention；
Fig. 6 is the structural representation of the center tap of equipotential live line work special isolation hanging ladder embodiment one of the present invention.
Embodiment
The invention will be further described below in conjunction with the accompanying drawings.
Embodiment one
As shown in Figure 1, 2, equipotential live line work special isolation hanging ladder provided in an embodiment of the present invention, including pedestal 1, for multiplying
The stool plate 2 of seat and the support bar 3 for stool for supporting plate 2, the side of stool plate 2 are rotationally connected with pedestal 1, and one end of support bar 3 turns
It is dynamic to be connected to pedestal 1 and coordinate when in use with stool plate 2 positioned at stool plate and the lower section of pedestal junction, the other end of support bar 3
For fixing stool for supporting plate.
Pedestal 1 is in " king " font or " nonyl " font, including montant 11, the push rod 12 located at montant top, located at montant bottom
The bottom bar 13 at end and the cross bar 14 between montant top and bottom, in the present embodiment, cross bar 14 is located at the centre of montant 11
Position or middle part opening position on the lower side.
Stool plate 2 is provided with the sleeve 21 coordinated with the both ends of cross bar 14 at the both ends that side is connected with pedestal 1, and stool plate 2 passes through set
The cooperation of cylinder 21 and cross bar 14 is rotationally connected with pedestal 1.In the present embodiment, the semicircular in shape of stool plate 2, certainly, stool plate 2 can also be
It is other shapes, such as rectangle, square.
The bottom of montant 11 is provided with the deck 4 for being used for collapsing support bar 3, as shown in figure 3, deck 4 includes matching somebody with somebody with montant 11
Close and tubular deck body 41, the circumferential outside of deck body 41 are provided with the snap arm 42 of two parallel and symmetricals, snap arm exists
End away from deck body is provided with the clamping projection 43 of opposite side snap arm protrusion.
The bottom of support bar 3 is connected to the bottom of montant 11 by pole socket 5 and bearing pin, as shown in figure 4, pole socket 5 include with
Montant 11 coordinates and tubular pole socket body 51, and the circumferential outside of pole socket body 51 is provided with the linking arm of two parallel and symmetricals
52, linking arm is provided with the pin-and-hole 53 coordinated with bearing pin.The bottom terminal ends of support bar 3 are provided with the connecting hole coordinated with bearing pin, support
The bottom of bar 3 is rotationally connected with the bottom of montant 11 by the cooperation with bearing pin and pole socket 5, and pole socket 5 is located at the upper of bottom bar 13
Side.
The top of support bar 3 is connected to stool plate 2 by pin rod when in use, and supporting bar top is provided with to be led to what pin rod coordinated
Hole, the bottom surface of stool plate 2 are provided with two fixed parts 21 that are downwardly projecting and coordinating with the top of support bar 3, and fixed part 21 is provided with and pin
The fixing hole that bar coordinates.
The both ends of push rod 12 are respectively provided with a suspension ring 6, as shown in figure 5, suspension ring 6 include the pipe sleeve coordinated with the end of push rod 12
61 and the collar 62 at the top of the pipe sleeve and in a ring, pipe sleeve 61 and the collar 62 be molded using integral structure, set on pipe sleeve 61
There is the hole with appended claims, suspension ring 6 are fixedly mounted on push rod 12 by the cooperation in fastener and hole.Certainly, of suspension ring 6
Number can be arranged to multiple.
Pedestal 1 also includes tilting the bracing piece 7 located between push rod 12 and montant 11, and the top of bracing piece 7 is fixedly connected
In the end of push rod 12, the bottom of bracing piece 12 is fixedly connected on the middle and upper part of montant 11.In the present embodiment, in montant 11 on
Portion is installed with a ring cylinder 15, and the top of bracing piece 7 is fixedly connected on the bottom of pipe sleeve 61 on suspension ring 6, the bottom of bracing piece
It is fixedly connected on the outer wall of ring cylinder 15.Further, in order to improve intensity, ring cylinder 15, bracing piece 7 and suspension ring 6 can use one
Body formed structure.
Push rod 12, bottom bar 13 and cross bar 14 use identical mounting structure, include the joint 81 being fixed on montant 11
And it is fixedly connected on the quarter butt 82 of joint.As shown in fig. 6, joint 81 is in " ten " font, including coordinates and be cylindrical in shape with montant 11
Fixed cover 811, be arranged with the peripheral outer wall of fixed cover 811 two edges stretch out perpendicular to fixed cover length direction it is short
Arm 812.The hole with appended claims is equipped with fixed cover 811, galianconism 812 and quarter butt 82, joint 81 is fixed by fastener
On montant 11, quarter butt 82 is fixedly connected on galianconism 812 by fastener.
In the present embodiment, the spacing between push rod 12 and cross bar 14 is 0.5m~0.8m, preferably 0.6m, certainly, optional
For 0.5m, 0.55m, 0.65m, 0.7m, 0.75m, 0.8m etc.；Spacing between cross bar 14 and bottom bar 13 is 0.38m~0.5m, excellent
Elect 0.45m as, certainly, be chosen as 0.38m, 0.4m, 0.42m, 0.48m, 0.5m etc.；The length of push rod 12 and cross bar 14 is
0.35m~0.6m, preferably 0.5m, certainly, it is chosen as 0.35m, 0.4m, 0.45m, 0.55m, 0.6m etc.；The length of bottom bar 13
For 0.27m~0.4m, preferably 0.35m, certainly, 0.27m, 0.3m, 0.38m, 0.4m etc. are also chosen as.In the present embodiment, group
Each component into hanging ladder is adopted and is made from an insulative material.
Under normality, stool plate 2 and support bar 3 are in rounding state as shown in Figure 2, because of the limit of clamping projection 43 on deck 4
Position effect, support bar 3 and stool plate 2 will not arbitrarily rotate relative to pedestal 1.
In use, putting down support bar 3, stool plate 2 is rotated up, makes the through hole on the top of support bar 3 and consolidating on fixed part 21
It is corresponding to determine hole, pin rod is inserted in fixing hole and through hole and ensures that pin rod does not depart from fixed part and support bar, now, insulate hanging ladder
In deployed condition as shown in Figure 1.
Using swing enter equipotential live wire into method when, operating personnel is sitting on stool plate 2, and both feet rest on bottom bar respectively
13 both sides.
Operating personnel does not have to expend great effort to make hanging ladder keep balance in disengaging, and skill is controlled to operating personnel
Requirement substantially reduce, operating personnel pass in and out when expend it is physical small, be easy to guarantee operational security.At least two are set on push rod
Individual suspension ring, operating personnel are not in situation about spinning swinging fashionable hanging ladder, and easy to operation, stability in use is good.Operating personnel
The electric potential transferring stick of carrying can be hung up on push rod 12 or bracing piece 7 in operation process, so as to operating personnel vacate it is double
Hand is operated, operation difficulty relative reduction, effectively increases operation correctness and stability.
After use, pin rod is extracted out, stool plate 2 rotates down to be bonded with montant 11, rotary supporting rod 3 and is made then up
Support bar is caught between two snap arm 42 of deck 4.
Embodiment two
The difference of the present embodiment and above-described embodiment one is that the thickness of stool plate 2 is larger, and stool plate bottom surface is away from pedestal
1 side is provided with the neck coordinated with the top of support bar 3, and support bar 3 fixes branch by the cooperation of top and neck when in use
Support stool plate 2.
In addition to above preferred embodiment, the present invention also has other embodiments, and those skilled in the art can be according to this
Invention is variously modified and deformed, and without departing from the spirit of the present invention, all should belong in claims of the present invention and determine
The scope of justice.
Claims (6)
1. equipotential live line work special isolation hanging ladder, including pedestal, it is characterised in that also include for the stool plate of seating and for propping up
The support bar of stool plate is supportted, the side of stool plate is rotationally connected with pedestal, and one end of support bar is rotationally connected with pedestal and is located at stool plate
With the lower section of pedestal junction, the other end of support bar coordinates with stool plate for fixing stool for supporting plate when in use；The support
The bar other end is connected to stool plate by pin rod when in use, and the end of the support bar other end is provided with the through hole coordinated with pin rod, stool
Plate bottom surface is provided with two fixed parts that are downwardly projecting and coordinating with support bar other end end, and fixed part is provided with to be coordinated with pin rod
Fixing hole；The pedestal includes montant, the push rod located at montant top, the cross bar between montant top and bottom, top
Bar is provided with least two suspension ring；The pedestal also includes the bottom bar located at montant bottom, and pedestal is in " king " font or " nonyl " word
Shape；The bottom of the montant is provided with the deck for being used for collapsing support bar, and deck includes coordinating with montant and tubular deck sheet
Body, the circumferential outside of deck body are provided with the snap arm of two parallel and symmetricals, and snap arm is provided with court in the end away from deck body
The clamping protruded to opposite side snap arm is raised.
2. equipotential live line work special isolation hanging ladder according to claim 1, it is characterised in that the equipotential live line work is special
The hanging ladder that insulate also includes the pole socket and bearing pin for connection support bar and pedestal, and pole socket includes coordinating with montant and tubular bar
Seat body, the circumferential outside of pole socket body are provided with the linking arm of two parallel and symmetricals, and linking arm is provided with what is coordinated with bearing pin
Pin-and-hole, the end of support bar one end are provided with the connecting hole coordinated with bearing pin, and one end of support bar with bearing pin and pole socket by matching somebody with somebody
Conjunction is connected to montant bottom, and pole socket is located at the top of bottom bar.
3. equipotential live line work special isolation hanging ladder according to claim 1, it is characterised in that the stool plate connects with pedestal
The both ends for connecing side are provided with the sleeve coordinated with cross bar both ends, and stool plate is rotationally connected with pedestal by the cooperation of sleeve and cross bar.
4. the equipotential live line work special isolation hanging ladder according to claim any one of 1-3, it is characterised in that the pedestal is also
The end of push rod is fixedly connected on located at the bracing piece between push rod and montant, the top of bracing piece including tilting, bracing piece
Bottom is fixedly connected on the top of montant.
5. equipotential live line work special isolation hanging ladder according to claim 1 or 2, it is characterised in that the push rod, bottom bar and
Cross bar uses identical mounting structure, includes the joint that is fixed on montant and the quarter butt for being fixedly connected on joint；Joint is in
" ten " font, including coordinate with montant and tubular fixed cover, be arranged with fixed cover peripheral outer wall two edges perpendicular to
The galianconism that fixed cover length direction stretches out, quarter butt are fixedly connected on galianconism by fastener.
6. equipotential live line work special isolation hanging ladder according to claim 5, it is characterised in that between the push rod and cross bar
Spacing be 0.5m~0.8m, the spacing between cross bar and bottom bar is 0.38m~0.5m, and the length of push rod and cross bar is 0.35m
~0.6m, the length of bottom bar is 0.27m~0.4m.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610632525.6A CN106168111B (en) | 2016-08-01 | 2016-08-01 | Equipotential live line work special isolation hanging ladder |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610632525.6A CN106168111B (en) | 2016-08-01 | 2016-08-01 | Equipotential live line work special isolation hanging ladder |
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| Publication Number | Publication Date |
|---|---|
| CN106168111A CN106168111A (en) | 2016-11-30 |
| CN106168111B true CN106168111B (en) | 2017-12-19 |
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ID=58066063
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610632525.6A Active CN106168111B (en) | 2016-08-01 | 2016-08-01 | Equipotential live line work special isolation hanging ladder |
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| Country | Link |
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| CN (1) | CN106168111B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107317260A (en) * | 2017-08-25 | 2017-11-03 | 陈先刚 | One kind is based on adjustable 10KV distribution line poles top maintenance and support bar |
| CN107822364B (en) * | 2017-10-25 | 2020-11-10 | 国网河南省电力公司周口供电公司 | Spade stool for working aloft |
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| CN201374521Y (en) * | 2009-02-19 | 2009-12-30 | 金华电业局 | Equipotential ladder |
| CN102255261A (en) * | 2011-07-06 | 2011-11-23 | 衢州电力局 | Shifting device for two-circuit hot-line work of transmission line |
| CN203423432U (en) * | 2013-07-30 | 2014-02-05 | 国家电网公司 | Insulation ladder in the shape of Chinese character "shi" |
| CN204511277U (en) * | 2015-03-03 | 2015-07-29 | 国家电网公司 | A kind of double insulated hook ladder |
| CN105790161A (en) * | 2016-05-10 | 2016-07-20 | 国网湖南省电力公司带电作业中心 | Omnibearing rotary telescoping insulating ladder and application method therefor |
| CN205840758U (en) * | 2016-08-01 | 2016-12-28 | 国网浙江省电力公司金华供电公司 | A kind of equipotential live line work special isolation hanging ladder |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE9414257U1 (en) * | 1994-09-02 | 1994-11-03 | Soell Gmbh | Ladder that can be detachably attached to a building |
| EP3076854B1 (en) * | 2013-12-04 | 2022-04-20 | Koninklijke Philips N.V. | Local ffr estimation and visualisation for improved functional stenosis analysis |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201374521Y (en) * | 2009-02-19 | 2009-12-30 | 金华电业局 | Equipotential ladder |
| CN102255261A (en) * | 2011-07-06 | 2011-11-23 | 衢州电力局 | Shifting device for two-circuit hot-line work of transmission line |
| CN203423432U (en) * | 2013-07-30 | 2014-02-05 | 国家电网公司 | Insulation ladder in the shape of Chinese character "shi" |
| CN204511277U (en) * | 2015-03-03 | 2015-07-29 | 国家电网公司 | A kind of double insulated hook ladder |
| CN105790161A (en) * | 2016-05-10 | 2016-07-20 | 国网湖南省电力公司带电作业中心 | Omnibearing rotary telescoping insulating ladder and application method therefor |
| CN205840758U (en) * | 2016-08-01 | 2016-12-28 | 国网浙江省电力公司金华供电公司 | A kind of equipotential live line work special isolation hanging ladder |
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| Publication number | Publication date |
|---|---|
| CN106168111A (en) | 2016-11-30 |
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