CN106848925A - High voltage operations folding ladder - Google Patents
High voltage operations folding ladder Download PDFInfo
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- CN106848925A CN106848925A CN201710156770.9A CN201710156770A CN106848925A CN 106848925 A CN106848925 A CN 106848925A CN 201710156770 A CN201710156770 A CN 201710156770A CN 106848925 A CN106848925 A CN 106848925A
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- Prior art keywords
- arm
- support
- crossbeam
- folding ladder
- high voltage
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- 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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Abstract
The invention provides a kind of high voltage operations folding ladder.The folding ladder includes stow-away arm rest, two fixed handrails and two voltage equalizing balls, and stow-away arm rest is located at the upper end of fixed handrail；Wherein, the end of high voltage operations folding ladder is connected with ground and Measuring error device respectively；Stow-away arm rest includes crossbeam and two armrest supports；The first end of two armrest supports is connected by crossbeam, and the second end is detachably connectable with two voltage equalizing balls respectively；The length of crossbeam is more than two distances of fixed handrail；Two armrest supports are respectively placed in two both sides of fixed handrail and are rotationally connected with two fixed handrails；When circuit runs, crossbeam is in contact with fixed handrail；When line maintenance, crossbeam is in contact with Measuring error device.When circuit runs, crossbeam blocks the climbing of children or felo-de-se to folding ladder of the present invention, and voltage equalizing ball increases the radius of curvature on folding ladder top, and high voltage operations ladder top occurs corona discharge under solving the problems, such as hyperbaric environment.
Description
Technical field
The present invention relates to power maintenance technology field, in particular to a kind of high voltage operations folding ladder.
Background technology
Near high-tension line or under hyperbaric environment during work high above the ground, it is often necessary to use ladder.Under high voltages, electric field week
Enclose near the less electrode of radius of curvature, because free of air will discharge, form corona.Because in the periphery electricity of corona
Field is very weak, does not collide free, and corona periphery charged particle is substantially electron ion, and these ions just form corona discharge
Electric current.Because ladder top operating area voltage is high, often there is showing for corona discharge in radius of curvature small position in ladder top
As.When corona discharge occurs, halation generation, the sound for also discharging not only are had, therefore corona discharge can cause the damage of electric energy
Consume and interference can be produced to television broadcasting.
In addition, climbing and personal protection for the ease of ladder, existing ladder both sides are provided with fixed handrail.Gu but
Handrail is determined while being easy to the climbing of other staff, and under hyperbaric environment, personnel so just cause near Danger Electric shock risk can occur
The personal injury of children or felo-de-se.
The content of the invention
In consideration of it, the present invention proposes a kind of high voltage operations folding ladder, it is intended to solve existing ladder top and corona occurs
Electric discharge and unsafe problem.
On one side, the present invention proposes a kind of high voltage operations folding ladder, and the device includes：Stow-away arm rest, two it is solid
Determine handrail and two voltage equalizing balls, the stow-away arm rest is located at the upper end of the fixed handrail；Wherein, the high voltage operations are folded
The end of ladder is connected with ground and Measuring error device respectively；The stow-away arm rest includes crossbeam and two armrest supports；Its
In, the first end of described two armrest supports is connected by the crossbeam, also, the second end respectively with described two voltage equalizing balls
It is detachably connectable；The length of the crossbeam is more than the distance between described two fixed handrails；Described two armrest supports
It is respectively placed in the both sides of described two fixed handrails and is rotationally connected with described two fixed handrails；When circuit operation
When, the crossbeam is in contact with described two fixed handrails, for stopping that personnel climb；When line maintenance, the crossbeam with
The Measuring error device is in contact, for supporting the armrest support.
Further, above-mentioned armrest support includes：One arm-rest frame and a support frame；Wherein, the one of the arm-rest frame
End is rotationally connected with the fixed handrail, also, the other end of the arm-rest frame and the voltage equalizing ball removably phase
Connection；One end of support frame as described above is rotationally connected with the junction of the arm-rest frame and the fixed handrail, also, institute
The other end for stating support frame is fixedly connected with the crossbeam.
Further, above-mentioned armrest support includes：First support, second support and arm-rest frame；Wherein, the first support
First end be connected with the first end of the second support, also, the second end of the first support and the arm-rest frame phase
Connection；Second end of the second support is connected with the first end of the arm-rest frame, also, the first support, described
Two supports and the arm-rest frame enclose and are set as a triangle；It is outer and equal with described that second end of the arm-rest frame is placed in the triangle
Pressure ball is detachably connectable；The crossbeam is fixedly connected on the junction of the first support and the second support.
Further, above-mentioned voltage equalizing ball offers the groove matched with the second end of the arm-rest frame；The arm-rest frame
The second end be connected in the groove.
Further, above-mentioned voltage equalizing ball be hollow ball, and the voltage equalizing ball offer with the arm-rest frame second
The opening that end matches；Second end of the arm-rest frame is arranged in opening and is socketed in the voltage equalizing ball.
Further, above-mentioned opening is the circular hole of the diameter at the second end with diameter greater than the arm-rest frame.
Further, above-mentioned voltage equalizing ball is connected by connector with the fixed handrail, and the connector is used to fix
The voltage equalizing ball.
Further, above-mentioned connector is lead rope.
Further, above-mentioned lead rope is steel wire rope, steel strand wires rope, steel-cored aluminium strand rope or copper cash rope.
Further, above-mentioned crossbeam is detachably connectable with the Measuring error device by latch.
The high voltage operations folding ladder that the present invention is provided, when circuit runs, stow-away arm rest turns to crossbeam and is helped with fixation
Palmistry is contacted, and crossbeam can stop the climbing of children or felo-de-se, reduce the possibility of the Danger Electric shock risk around high-tension line,
Solve the problems, such as the insecurity that high voltage operations ladder brings.Meanwhile, voltage equalizing ball is sharp with top in high voltage operations folding ladder
End position is connected, and increases the radius of curvature of high voltage operations folding ladder tip part, solves high voltage under hyperbaric environment
There is the problem of corona discharge in operation ladder top.
Brief description of the drawings
By reading the detailed description of hereafter preferred embodiment, various other advantages and benefit is common for this area
Technical staff will be clear understanding.Accompanying drawing is only used for showing the purpose of preferred embodiment, and is not considered as to the present invention
Limitation.And in whole accompanying drawing, identical part is denoted by the same reference numerals.In the accompanying drawings：
Fig. 1 is side structure schematic diagram of the high voltage operations folding ladder provided in an embodiment of the present invention in high-voltage operation；
Fig. 2 is positive structure schematic of the high voltage operations folding ladder provided in an embodiment of the present invention in high-voltage operation；
Fig. 3 is side structure schematic diagram of the high voltage operations folding ladder provided in an embodiment of the present invention in line maintenance；
Fig. 4 is positive structure schematic of the high voltage operations folding ladder provided in an embodiment of the present invention in line maintenance；
Fig. 5 is the structural representation of voltage equalizing ball in high voltage operations folding ladder provided in an embodiment of the present invention.
Specific embodiment
The exemplary embodiment of the disclosure is more fully described below with reference to accompanying drawings.Although showing the disclosure in accompanying drawing
Exemplary embodiment, it being understood, however, that may be realized in various forms the disclosure without should be by embodiments set forth here
Limited.Conversely, there is provided these embodiments are able to be best understood from the disclosure, and can be by the scope of the present disclosure
Complete conveys to those skilled in the art.It should be noted that in the case where not conflicting, embodiment in the present invention and
Feature in embodiment can be mutually combined.Describe the present invention in detail below with reference to the accompanying drawings and in conjunction with the embodiments.
Referring to Fig. 1, Fig. 1 is side structure of the high voltage operations folding ladder provided in an embodiment of the present invention in high-voltage operation
Schematic diagram.As illustrated, the high voltage operations folding ladder includes：The fixed handrail 2 of stow-away arm rest 1, two and two voltage equalizing balls 3,
Stow-away arm rest 1 is located at the upper end (for the position shown in Fig. 1) of fixed handrail 2.This technology personnel are it is generally known that height
Voltage operation folding ladder also includes ladder body, and ladder body can vertically place (for the position shown in Fig. 1),
Can be slant setting (for the position shown in Fig. 1), the present embodiment does not do any restriction to it.Ladder body both sides
Lower end (for the position shown in Fig. 1) is welded with two fixed handrails 2.Stow-away arm rest 1 is located at two fixed handrails 2
Upper end (for the position shown in Fig. 1) and rotationally it is connected with two fixed handrails 2.Preferably, voltage equalizing ball 3 can
Think metal ball.It is further preferred that voltage equalizing ball 3 can be aluminium ball, stainless steel ball or iron ball, certainly, voltage equalizing ball 3 can also be
The spheroid of other materials, the present embodiment does not do any restriction to it.Wherein,
As shown in Figures 1 to 4, the end of high voltage operations folding ladder is connected with ground and Measuring error device respectively.
Specifically, the bottom (for the position shown in Fig. 1) of high voltage operations folding ladder be ladder body bottom (relative to
For position shown in Fig. 1) it is connected with ground, the top of high voltage operations folding ladder is (relative to the position shown in Fig. 1
Speech) it is that the top (for the position shown in Fig. 1) of ladder body is connected with Measuring error device.It is further reinforcement
The safety and firmness of the folding ladder, it is preferable that the folding ladder can be with the connected mode on ground and Measuring error device bottom surface
Welding.Well-known to those skilled in the art is that Measuring error device can be operation under corona cage, or hyperbaric environment
Other devices during personnel's operation.
Stow-away arm rest 1 includes：Crossbeam 11 and two armrest supports 12.Wherein, two first ends of armrest support 12 are (as schemed
Bottom righthand side shown in 1) it is connected by crossbeam 11, also, two the second ends of armrest support 12 (upper right side as shown in Figure 1)
It is detachably connectable with two voltage equalizing balls 3 respectively.Specifically, crossbeam 11 can be with horizontal positioned (relative to the position shown in Fig. 2
For), two armrest supports 12 can be placed (for the position shown in Fig. 2) vertically, and two armrest supports 12 can be with
It is connected by crossbeam 11.Armrest support 12 can be integrally formed with crossbeam 11, certainly, the connection of armrest support 12 and crossbeam 11
Other connected modes that mode can also be well known to those skilled in the art for example are welded, and the present embodiment does not do any to it
Limit.Two the second ends of armrest support 12 (upper right side as shown in Figure 1) are detachably connected with two voltage equalizing balls 3 respectively
Connect, when line maintenance, two voltage equalizing balls 3 pull down placement, when circuit runs, two voltage equalizing balls 3 and two armrest supports 12
The second end (upper right side as shown in Figure 1) be connected.
The length of crossbeam 11 is more than the distance between two fixed handrails 2.Two armrest supports 12 are respectively placed in two admittedly
Determine the both sides of handrail 2 and be rotationally connected with two fixed handrails 2.Specifically, the horizontal length of crossbeam 11 is (relative to figure
For position shown in 2) horizontal range (for the position shown in Fig. 2) between two fixed handrails 2 can be more than,
Two armrest supports 12 are respectively placed in two left and right sides (for the position shown in Fig. 2) of fixed handrail 2, also,
Two armrest supports 12 can be rotationally connected by fastener bolt with two fixed handrails 2, certainly, two handrails
Connected mode between support 12 and two fixed handrails 2 can also be by other modes well-known to those skilled in the art example
Such as connecting rod connection, the present embodiment does not do any restriction to it.
As shown in Fig. 1 to 2, when circuit runs, crossbeam 11 is in contact with two fixed handrails 2, for stopping that personnel climb
Climb.Specifically, when circuit runs, crossbeam 11 is in contact with two fixed handrails 2, and fixed handrail 2 can support stow-away arm rest 1 to prevent
Only its rotation, also, crossbeam 11 can stop that personnel are climbed to the danger zone of Measuring error device along the folding ladder.Meanwhile,
Now two voltage equalizing balls 3 are connected with the second end of two armrest supports 12.
As shown in Figs. 3-4, when line maintenance, crossbeam 11 is in contact with Measuring error device, for supporting armrests support
12.Specifically, after circuit is out of service and before line maintenance, after two voltage equalizing balls 3 are pulled down into placement other positions, stow-away arm rest
1 rotates around two fixed handrails 2 and two junctions of armrest support 12, turns to crossbeam 11 and connects with Measuring error device
Touch.When line maintenance, crossbeam 11 is in contact with Measuring error device, and Measuring error device can support the stow-away arm rest 1 to prevent
It is rotated.
The course of work of the present embodiment is：Turn folding handrail 1 to crossbeam 11 first to be in contact with fixed handrail 2, then
Two voltage equalizing balls 3 are connected with two the second ends of armrest support 12 (upper right side as shown in Figure 1) respectively, this kind of state
Under, circuit operation；When circuit needs repairing, circuit is out of service, first by two voltage equalizing balls 3 and two the of armrest support 12
Two ends (upper right side as shown in Figure 1) are discretely located in other positions, then around two first end of armrest support 12 (such as Fig. 1
Shown bottom righthand side) counterclockwise (for the direction shown in Fig. 1) turn folding handrail 1, turn to crossbeam 11 with detection
Maintenance unit is in contact after (state as shown in Figure 4), and maintenance personal just can climb and then repair circuit.
Compared with prior art, the high voltage operations folding ladder that the present embodiment is provided, when circuit runs, stow-away arm rest 1
Turn to crossbeam 11 to be in contact with fixed handrail 2, crossbeam 11 can stop the climbing of children or felo-de-se, reduce high-tension line
The possibility of the Danger Electric shock risk of surrounding, solves the problems, such as the insecurity that high voltage operations ladder brings.Meanwhile, voltage equalizing ball 3 with
Top apex position is connected in high voltage operations folding ladder, increases the curvature half of high voltage operations folding ladder tip part
Footpath, under solving the problems, such as hyperbaric environment there is corona discharge in high voltage operations ladder top.
An embodiment of the present embodiment, armrest support 12 can include：One arm-rest frame and a support frame；Its
In, one end of arm-rest frame can rotationally be connected with fixed handrail 2, also, the other end of arm-rest frame can be with voltage equalizing ball 3
It is detachably connectable.One end of support frame can rotationally be connected with the junction of arm-rest frame and fixed handrail 2, and
And, the other end of support frame can be fixedly connected with crossbeam 11.
During specific implementation, each armrest support includes an arm-rest frame and a support frame, and the folding ladder is helped including two
Hand support, the i.e. folding ladder include two arm-rest frames and two support frames altogether.Two one end of arm-rest frame can respectively with two
Individual fixed handrail 2 is rotationally connected, and the other end can be detachably connectable with two voltage equalizing balls 3 respectively.Two branch
One end of support can respectively with the connection of the junction and another arm-rest frame and fixation handrail 2 of arm-rest frame and fixed handrail 2
Place is rotationally connected.Preferably, for ease of changing and dismantling, one end and arm-rest frame and the company of fixed handrail 2 of support frame
The place of connecing can be connected by bolt.Two other ends of support frame can be fixedly connected with crossbeam 11, support frame and crossbeam
11 can be integrally formed, naturally it is also possible to which other connected modes being well known to those skilled in the art for example are welded, this implementation
Example does not do any restriction to it.
As can be seen that in the present embodiment, the arm-rest frame of armrest support 12 can increase the length of handrail, maintenance personal's climbing
The handrail that can be climbed is increased during to folding ladder top, the security of maintenance personal is increased, and, crossbeam 11 is helped with fixation
Top can further stop the climbing of children or felo-de-se to detecting dimension without handrail after the folding ladder is folded when hand 12 is contacted
Repair the danger zone in device.Meanwhile, it is rotatably connected between arm-rest frame and support frame and is easily installed and transports.
Only need to be referring to Fig. 1 to Fig. 4, the another embodiment of the present embodiment, armrest support 12 can include：First support
121st, second support 122 and arm-rest frame 123.Specifically, two armrest supports 12 of the left and right sides are (relative to the position shown in Fig. 2
For putting) may each comprise first support 121, second support 122 and arm-rest frame 123.Wherein,
The first end (lower end as shown in Figure 1) of first support 121 can be with the first end of second support 122 (such as Fig. 1 institutes
The upper right side for showing) it is connected, also, second end (upper end as shown in Figure 1) of first support 121 can be with the phase of arm-rest frame 123
Connection.Second end (lower-left end as shown in Figure 1) of second support 122 can be with the first end of arm-rest frame 123 (as shown in Figure 1
Lower-left end) be connected, also, first support 121, second support 122 and arm-rest frame 123 can enclose and be set as a triangle.Tool
Body ground, first support 121, second support 122 are connected to enclose and are set as a triangle two-by-two with arm-rest frame 123.It is further increasing
Big intensity, it is preferable that the first end (lower end as shown in Figure 1) and first end (such as Fig. 1 of second support 122 of first support 121
Shown upper right side) enclose and be set as a right angle.
It is outer and detachable with voltage equalizing ball 3 that second end (upper right side as shown in Figure 1) of arm-rest frame 123 can be placed in triangle
Ground is connected, and crossbeam 11 can be fixedly connected on the junction of first support 121 and second support 122.
Preferably, the left end (for the position shown in Fig. 2) of crossbeam 11 can be fixedly connected on left armrests branch
The first support 121 of frame 12 (for the position shown in Fig. 2) and the junction of second support 122, the right-hand member of crossbeam 11
(for the position shown in Fig. 2) can be fixedly connected on right armrest support 12 (relative to the position shown in Fig. 2
Speech) first support 121 and second support 122 junction.During specific implementation, first support 121, second support 122 and help
Hand cradle 123 can be integrally formed, naturally it is also possible to other connected modes being well known to those skilled in the art such as welding, this reality
Apply example and do not do any restriction to it.
In the present embodiment, when line maintenance, not only crossbeam 11 is in contact supporting armrests support 12 with Measuring error device,
And second support 122 can reduce active force of the climbing person to crossbeam 11 with supporting armrests frame 123.Meanwhile, armrest support 12
First support 121, second support 122 and arm-rest frame 123 enclose and are set as a triangle, increase the intensity of armrest support 11, enter
And increase the service life of the folding ladder.
In a kind of implementation method in the above-described embodiments, voltage equalizing ball 3 can offer the second end with arm-rest frame 123
The groove that (upper right side shown in Fig. 2) matches, second end (upper right side shown in Fig. 2) of arm-rest frame 123 can be connected in recessed
In groove.It is further to increase the stability of voltage equalizing ball 2, the second end of groove that voltage equalizing ball 2 is opened up and arm-rest frame 123 is (shown in Fig. 2
Upper right side) match, if for example, second end (upper right side shown in Fig. 2) of arm-rest frame 123 is cylinder, voltage equalizing ball 2 opens up
Groove can be the circular groove matched with the external diameter of above-mentioned cylinder, the internal diameter of circular groove can be with above-mentioned cylinder
External diameter it is identical or more bigger than the external diameter of above-mentioned cylinder.
As can be seen that in the present embodiment, the structure and connected mode simple structure at voltage equalizing ball 3 and the end of arm-rest frame 123 second,
It is easily achieved, and, the voltage equalizing ball 3 is easy for removal and installation.
Referring to Fig. 5, Fig. 5 is the structural representation of voltage equalizing ball in high voltage operations folding ladder provided in an embodiment of the present invention
Figure.In another embodiment in the above-described embodiments, as illustrated, voltage equalizing ball 3 is hollow ball, and voltage equalizing ball 3 is opened
The opening 31 matched with the second end of arm-rest frame 123 is provided with, the second end of arm-rest frame 123 is arranged in opening 31 and is socketed on
In pressure ball 3.It is simple in order to make, it is preferable that voltage equalizing ball 3 can be the hollow sphere of uniform wall thickness.
In the present embodiment, voltage equalizing ball 3 is that hollow ball can not only make voltage equalizing ball 3 be stably connected with the in arm-rest frame 123
Two ends, and can be with material-saving and manufacturing cost.
Further, in the above-described embodiments, opening 31 can be the diameter at the second end with diameter greater than arm-rest frame 123
Circular hole.Specifically, opening 31 can be circular port, and the diameter of the circular port can be more than the external diameter at the second end of arm-rest frame 123.
But the invention is not restricted to this, in other embodiments, opening 31 can be other appropriate shapes, such as square opening etc..
In the various embodiments described above, voltage equalizing ball 3 is connected by connector 4 with fixed handrail 2, and connector 4 is used to fix
Voltage equalizing ball 3.During specific implementation, the folding ladder can include two connectors, one end of each connector can respectively with one
Fixed handrail 2 is connected, and the other end of connector 4 can be connected with a voltage equalizing ball 4 respectively.Wherein, connector 4 can be
Telescopic rod member or bent working of plastics, the present embodiment do not do any restriction to it.When line maintenance, two voltage equalizing balls
3 can be separated with second end (upper right side shown in Fig. 1) of armrest support 123, and two fixed handrails are placed in by connector 4
2 both sides.
As can be seen that in the present embodiment, voltage equalizing ball 3 can be directly hung on fixed handrail 2 after being dismantled with stow-away arm rest 1,
Therefore the folding ladder can prevent voltage equalizing ball 3 from losing, meanwhile, voltage equalizing ball 3 can be prevented and roll the dangerous accident for causing.
Further, connector 4 can be lead rope.Specifically, one end of lead rope can be bundled in fixed handrail 2
On, the other end can be worn to voltage equalizing ball 3.In order to prevent voltage equalizing ball 3 from dropping, it is preferable that lead rope can be metallic cable.Enter
Preferably, lead rope can be steel wire rope, steel strand wires rope, steel-cored aluminium strand rope or copper cash rope to one step.Certainly, lead rope can also
It is the rope of other materials, the present embodiment does not do any restriction to it.In the present embodiment, the connector 4 can arbitrarily bend, and
And its length can also be changed arbitrarily, so the connector 4 is installed simply, when line maintenance, the position of voltage equalizing ball 4 can adjust
It is whole.
In the various embodiments described above, crossbeam 11 can be detachably connectable with Measuring error device by latch.Specifically
Ground, when line maintenance, latch insertion, crossbeam 11 is connected with Measuring error device；After line maintenance, after latch is extracted,
Crossbeam 11 can be separated with Measuring error device.In the present embodiment, during line maintenance, the setting of latch can further stablize crossbeam
11 are fixedly connected with Measuring error device, can prevent the Foldable handrail 1 of crossbeam 11 from rocking.
High voltage operations folding ladder provided in an embodiment of the present invention is described in more detail below.
As shown in Figures 1 to 5, the folding ladder includes that ladder body, fixed 2, two, the handrail of stow-away arm rest 1, two are pressed
Ball 3 and two connectors 4.Wherein, voltage equalizing ball 3 is the hollow sphere of uniform wall thickness, and its external diameter can be 200~500mm, wall thickness
Can be 1~10mm, it is preferable that its external diameter and wall thickness decibel are 400mm and 5mm, and bottom is (relative to the side shown in Fig. 5
To) offer circular hole.Ladder body can be vertical ladder or inclined ladder, and two fixed handrails 2 are arranged at the lower end of ladder body, fold
Handrail 1 is arranged at the upper end of fixed handrail.Stow-away arm rest 1 includes two armrest supports 12 and crossbeam 11, and armrest support 12
Including first support 121, second support 122 and arm-rest frame 123.To consider the cost and folding property of stow-away arm rest, handrail
The length of frame 123 is 0.5~1.7m, it is preferable that the length of arm-rest frame 123 is 1m.First support 121, second support 122 and arm-rest frame
123 are sequentially connected to connect and enclose and are set as a right angled triangle two-by-two, also, arm-rest frame 123 the second end (right side as shown in Figure 1
Upper end) it is placed in outside triangle.The end of crossbeam 11 is fixedly connected with first support 121 with the junction of second support, and first
The junction of support 121 and arm-rest frame 123 is rotationally connected with fixed handrail 2.The Circularhole diameter ratio that voltage equalizing ball 3 is opened up
Big 1~the 50mm of external diameter of the 3rd support, it is preferable that the Circularhole diameter that voltage equalizing ball 3 is opened up than the 3rd support the big 30mm of external diameter, and
Second end (upper right side as shown in Figure 1) of arm-rest frame 123 is arranged in the circular hole and is placed in voltage equalizing ball 3.Voltage equalizing ball 3 can pass through
Connector 4 is connected with fixed handrail 2, and during line maintenance, voltage equalizing ball 4 is suspended on the both sides of ladder body, line by connector 4
When road is run, voltage equalizing ball 3 is connected with second end (upper right side as shown in Figure 1) of arm-rest frame 123.To bear voltage equalizing ball enough
Weight, connector 4 can be the steel wire rope of 1~10mm of diameter, steel strand wires rope, steel-cored aluminium strand rope or copper cash rope, it is preferable that
The steel wire rope of its a diameter of 5mm.Corona cage 70m long, by section for two cage bodies of 10m × 10m are constituted and in the middle of two cage bodies
There are 2 layers of mid-level net to separate, corona cage is arranged in catenary construction, is safety and firmness, corona when at the cage body of two ends away from ground about 3m
Cage is provided with 4 with bottom surface in 60 ° of operations involving high pressure folding ladders of setting, and ladder body is manufactured for iron material matter, and the folding ladder
Two ends are welded with bottom surface and corona cage respectively, crossbeam 11 can be fixed and separated with corona cage by latch.
In sum, the present embodiment provide high voltage operations folding ladder, when circuit run, crossbeam 11 with fixation handrail
2 are in contact can stop the climbing of children or felo-de-se, reduce the possibility of the Danger Electric shock risk around high-tension line, solve
The insecurity problem that high voltage operations ladder brings.Meanwhile, top apex position in voltage equalizing ball 3 and high voltage operations folding ladder
It is connected, increases the radius of curvature of high voltage operations folding ladder tip part, solves high voltage operations ladder under hyperbaric environment
There is the problem of corona discharge in sub- top.
Obviously, those skilled in the art can carry out various changes and modification without deviating from essence of the invention to the present invention
God and scope.So, if these modifications of the invention and modification belong to the scope of the claims in the present invention and its equivalent technologies
Within, then the present invention is also intended to comprising these changes and modification.
Claims (10)
1. a kind of high voltage operations folding ladder, it is characterised in that including：Stow-away arm rest (1), two fixed handrails (2) and two
Voltage equalizing ball (3), the stow-away arm rest (1) is positioned at the upper end of the fixed handrail (2)；Wherein,
The end of the high voltage operations folding ladder is connected with ground and Measuring error device respectively；
The stow-away arm rest (1) includes crossbeam (11) and two armrest supports (12)；Wherein, described two armrest supports (12)
First end is connected by the crossbeam (11), also, the second end is detachably connected with described two voltage equalizing balls (3) respectively
Connect；
The length of the crossbeam (11) is more than the distance between described two fixed handrails (2)；
Described two armrest supports (12) be respectively placed in the both sides of described two fixed handrails (2) and with described two fixed handrails
(2) rotationally it is connected；
When circuit runs, the crossbeam (11) is in contact with described two fixed handrails (2), for stopping that personnel climb；
When line maintenance, the crossbeam (11) is in contact with the Measuring error device, for supporting the armrest support
(12)。
2. high voltage operations folding ladder according to claim 1, it is characterised in that the armrest support (12) includes：One
Individual arm-rest frame and a support frame；Wherein,
One end of the arm-rest frame is rotationally connected with the fixed handrail (2), also, the other end of the arm-rest frame with
The voltage equalizing ball (3) is detachably connectable；
One end of support frame as described above is rotationally connected with the junction of the arm-rest frame and the fixed handrail (2), also,
The other end of support frame as described above is fixedly connected with the crossbeam (11).
3. high voltage operations folding ladder according to claim 1, it is characterised in that the armrest support (12) includes：The
One support (121), second support (122) and arm-rest frame (123)；Wherein,
The first end of the first support (121) is connected with the first end of the second support (122), also, described first
Second end of support (121) is connected with the arm-rest frame (123)；
Second end of the second support (122) is connected with the first end of the arm-rest frame (123), also, described first
Frame (121), the second support (122) and the arm-rest frame (123) enclose and are set as a triangle；
It is outer and detachably connectable with the voltage equalizing ball (3) that second end of the arm-rest frame (123) is placed in the triangle；
The crossbeam (11) is fixedly connected on the junction of the first support (121) and the second support (122).
4. high voltage operations folding ladder according to claim 3, it is characterised in that
The voltage equalizing ball (3) offers the groove matched with the second end of the arm-rest frame (123)；
Second end of the arm-rest frame (123) is connected in the groove.
5. high voltage operations folding ladder according to claim 3, it is characterised in that
The voltage equalizing ball (3) is hollow ball, and the voltage equalizing ball (3) offers the second end with the arm-rest frame (123)
The opening (31) for matching；
Second end of the arm-rest frame (123) is arranged in the opening (31) and is socketed in the voltage equalizing ball (3).
6. high voltage operations folding ladder according to claim 5, it is characterised in that the opening (31) is with diameter greater than institute
State the circular hole of the diameter at the second end of arm-rest frame (123).
7. the high voltage operations folding ladder according to any one of claim 1 to 6, it is characterised in that
The voltage equalizing ball (3) is connected by connector (4) with the fixed handrail (2), and the connector (4) is for fixing
State voltage equalizing ball (3).
8. high voltage operations folding ladder according to claim 7, it is characterised in that the connector (4) is lead rope.
9. high voltage operations folding ladder according to claim 8, it is characterised in that the lead rope is that steel wire rope, steel are twisted
Cotton rope, steel-cored aluminium strand rope or copper cash rope.
10. the high voltage operations folding ladder according to any one of claim 1 to 6, it is characterised in that the crossbeam (11) is led to
Cross latch detachably connectable with the Measuring error device.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710156770.9A CN106848925B (en) | 2017-03-16 | 2017-03-16 | High-voltage operation folding ladder |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201710156770.9A CN106848925B (en) | 2017-03-16 | 2017-03-16 | High-voltage operation folding ladder |
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| CN106848925A true CN106848925A (en) | 2017-06-13 |
| CN106848925B CN106848925B (en) | 2020-01-03 |
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Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0951614A (en) * | 1995-08-04 | 1997-02-18 | Central Res Inst Of Electric Power Ind | Steel tower for power transmission with safety facility |
| JP2002201885A (en) * | 2000-12-28 | 2002-07-19 | Minoru Furuhata | Warning display device of transferable ladder |
| CN202673134U (en) * | 2012-07-10 | 2013-01-16 | 浙江国星实业有限公司 | Crawling ladder of wind power generation tower |
| CN105203021A (en) * | 2015-10-21 | 2015-12-30 | 华北电力大学 | Measuring device and method of roughness coefficient of high-voltage conducting wire |
-
2017
- 2017-03-16 CN CN201710156770.9A patent/CN106848925B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0951614A (en) * | 1995-08-04 | 1997-02-18 | Central Res Inst Of Electric Power Ind | Steel tower for power transmission with safety facility |
| JP2002201885A (en) * | 2000-12-28 | 2002-07-19 | Minoru Furuhata | Warning display device of transferable ladder |
| CN202673134U (en) * | 2012-07-10 | 2013-01-16 | 浙江国星实业有限公司 | Crawling ladder of wind power generation tower |
| CN105203021A (en) * | 2015-10-21 | 2015-12-30 | 华北电力大学 | Measuring device and method of roughness coefficient of high-voltage conducting wire |
Also Published As
| Publication number | Publication date |
|---|---|
| CN106848925B (en) | 2020-01-03 |
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