CN207583059U - A kind of assembled composite electrical accident maintenance device - Google Patents
A kind of assembled composite electrical accident maintenance device Download PDFInfo
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- CN207583059U CN207583059U CN201721219554.6U CN201721219554U CN207583059U CN 207583059 U CN207583059 U CN 207583059U CN 201721219554 U CN201721219554 U CN 201721219554U CN 207583059 U CN207583059 U CN 207583059U
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- supporting rod
- maintenance device
- inner tube
- composite electrical
- electrical accident
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Abstract
The utility model designs power line supporting rack, a kind of assembled composite electrical accident maintenance device, supporting rod including uprightly setting and the coil holder positioned at support bar top, the supporting rod includes at least two layers of splicing tubes made of composite material, and outermost layer pipe is integrated pipe, inner tube is head and the tail splicing tubes, and the internal diameter of outer tube is more than the outer diameter of inner tube；The end position that the inner tube head and the tail stitching portion is located at outer tube is staggered, and the head and the tail stitching portion of adjacent two layers inner tube is staggered.Wherein, supporting rod has a multi-layered composite pipe suit, and every layer of casing place that is connected to each other is directed at shaft core by docking facilities, and convenience in transport during this supporting rod decomposing state, mechanical property is good after splicing, and splices convenience.
Description
Technical field
The utility model is related to electric system overhead transmission line bar/Deethanizer design and application field, particularly with a kind of dress
With formula composite electrical accident maintenance device.
Background technology
Bar/tower of electric system overhead transmission line has reinforced concrete pole, steel construction tubular type and truss-like bar/tower,
Transmission line of electricity is support, the effect for conveying powerful electric current is responsible for, along with the operation of various meteorological conditions.Overhead transmission line
Bar, line-outage contingency are recurrent, and loss caused by order to reduce forced outage as far as possible needs to be provided in repairing similary
The device of bar/tower function is run temporarily.Steel structure frame formula Guywire tower Assembling is mostly used in the prior art.This bar/
Tower needs prior segmented welding and is made by antirust treatment.This structural member is difficult keeping and maintenance, and volume is big, occupies
Space is big, and big transport and manpower transport difficult, on-site installation work amount is also very big, occupy many time costs and it is economical into
This.
Utility model content
The utility model using the high intensity of composite material, light-weight, good insulation preformance, designability can it is good, non-maintaining,
The features such as environmentally protective, provides a kind of assembled composite electrical accident maintenance device.
The technical solution adopted in the utility model is：
Assembled composite electrical accident maintenance device, including the supporting rod uprightly set and positioned at support bar top
Coil holder, the supporting rod includes at least two layers splicing tubes made of the composite material being set with, and the internal diameter of outer tube is more than interior
The outer diameter of layer pipe；The head and the tail stitching portion position that the inner tube head and the tail stitching portion is located at outer tube is staggered, in adjacent two layers
The head and the tail stitching portion of layer pipe is staggered.
As preference, the docking facilities for adjacent inner layer pipe axis to be aligned are equipped at the inner tube docking.
As preference, the docking facilities are arranged on inner tube head and the tail stitching portion, the main body of the docking facilities is circle
Column, the outer circumference surface of docking facilities is with prominent cricoid docking protrusion, the outer ring surface of the docking protrusion and to tipping
The cross section stepped for the outer ring surface put；The adjacent inner tube is inserted into docking facilities main body outer ring surface respectively, and holds
Portion is connected to docking protrusion.
As preference, the main body of the docking facilities is tubulose.
As preference, the assembled composite electrical accident maintenance device further includes pole socket, the pole socket includes
The pedestal on ground and tail portion and the hinged mounting base of pedestal are fixedly mounted on, the mounting base has tubulose circle far from hinged place
The cylinder base of cylindricality, the supporting rod are inserted into cylinder base.
As preference, the mounting base is equipped with bar of wrestling, the bar of wrestling is straight-bar, the extension master of the bar of wrestling
Pulley is installed into 80 ° of -100 ° of angles, the free end of the bar of wrestling between body and support rod axis；The assembled is answered
Condensation material electric power accident rush-repairing device includes bracing wire, and the bracing wire first end is connected in the middle part of supporting rod, and second end bypasses pulley.
As preference, the supporting rod is equipped at least 4 anchors, it is connect in the middle part of anchor first end and supporting rod, the
Two ends are anchored with ground；Anchor is tight during the supporting rod upright state, and angle is equal between multiple anchors.
As preference, the supporting rod is equipped with hooping structure, the hooping structure is sleeved on outer tube, hooping structure
With symmetrically arranged multiple mounting holes, the anchor first end is fixed in mounting hole.
As preference, the coil holder has at least up and down two layers.
As preference, the anchor has multilayer.
The present apparatus by the installation of wrestle bar and bracing wire, wrestle bar and bracing wire can by shirtsleeve operation can pull-up support
Bar, using effect is good, easy to operate, is particularly suitable for extreme environment operation, upright installation can be completed in one.
Description of the drawings
Fig. 1 is the overall structure diagram of the utility model assembled composite electrical accident maintenance device；
Fig. 2 is the structure diagram of pole socket in the utility model assembled composite electrical accident maintenance device；
Fig. 3 is the overall structure signal of the supporting rod of the utility model assembled composite electrical accident maintenance device
Figure；
Fig. 4 is the inner tube of the utility model assembled composite electrical accident maintenance device and docking facilities junction
Schematic diagram；
Fig. 5 illustrates for first state during the pull-up of the utility model assembled composite electrical accident maintenance device
Figure；
Fig. 6 illustrates for the second state during the pull-up of the utility model assembled composite electrical accident maintenance device
Figure
Fig. 7 illustrates for the third state during the pull-up of the utility model assembled composite electrical accident maintenance device
Figure
Fig. 8 is the schematic top plan view after the pull-up of the utility model assembled composite electrical accident maintenance device.
Fig. 9 is the schematic diagram that the bracing wire of the utility model assembled composite electrical accident maintenance device is anchored bottom surface.
Figure 10 is the utility model assembled composite electrical accident maintenance device outer tube junction schematic diagram.
Specific embodiment
The utility model is described in detail below in conjunction with attached drawing.
As Figure 1-Figure 8, the utility model provides a kind of assembled composite electrical accident maintenance device, including straight
The supporting rod 200 put and the coil holder 400 positioned at 200 top of supporting rod are erected, supporting rod 200 includes at least two layers by composite material
Manufactured splicing tubes, and outermost layer pipe 230 is integrated pipe, inner tube 210 is head and the tail splicing tubes, and the internal diameter of outer tube 230 is big
In the outer diameter of inner tube 210；The end position that 210 head and the tail stitching portion of inner tube is located at outer tube 230 is staggered, adjacent two layers
The head and the tail stitching portion of inner tube 210 is staggered.In other embodiments, outer tube 230 can also be splicing tubes, inner tube
The head and the tail stitching portion position that 210 head and the tail stitching portions are located at outer tube 230 is staggered
Specifically, as shown in Figure 1, state of the present apparatus after upright installation, wherein supporting rod 200 are vertical state, branch
200 top of strut has the coil holder 400 for support cable, and the coil holder 400 of Fig. 1 displayings is triangular structure, support cable
Part is made of insulating materials.
As shown in figure 3, the supporting rod 200 in the present embodiment is by taking three-decker as an example, outer tube 230, middle tube 220 and interior
Layer pipe 210 is straight tube, wherein 210 mutual sheathing of outer tube 230, middle tube 220 and inner tube, inner tube 210 and multiple length
The shorter multiple tube head and the tail of degree splice, and spliced inner tube 210 is in line state, middle tube 220 and outer tube 230 and internal layer
Pipe 210 is similar, repeats no more.
When outer tube 230, middle tube 220 and inner tube 210 splicing after be set in together after, 230 stitching portion of outer tube and
220 stitching portion of middle tube is interlaced to open, 220 stitching portion of middle tube and 210 stitching portion of inner tube is interlaced opens.It is for example, interior
During layer 210 stress of pipe, stitching portion is easiest to fracture, and 220 tube wall of middle tube provides support force to inner tube 210 at this time, similarly
Outer tube 230 provides support force to middle tube 220.
In the present embodiment, the length highest of inner tube 210,220 length of middle tube is placed in the middle, and the length of outer tube 230 is most
It is short so that the present apparatus is into tower-like.
The docking facilities 240 for 210 axis of adjacent inner layer pipe to be aligned are equipped at 210 docking of inner tube.Alignment device
Effect be so that tube wall is opposite, i.e., so that be spliced into inner tube 210 to meet pipe coaxial.Such as the not coaxial state of inner tube 210,
Its enabling capabilities is had a greatly reduced quality, and to ensure coaxially to each other, and inner tube 210 is in the junction non-deformability of assembled multiple tube
Increase, the setting of docking facilities 240 has and must have.
As shown in figure 4, docking facilities 240 provided in this embodiment are arranged on 210 head and the tail stitching portion of inner tube, docking facilities
240 main body is cylindric, and the outer circumference surface of docking facilities 240 has prominent cricoid docking protrusion, docks the outer of protrusion
The cross section stepped of anchor ring and the outer ring surface of docking facilities 240；Adjacent inner tube 210 is inserted into docking facilities respectively
240 main body outer ring surfaces, and end abutment is in docking protrusion.
Specifically, 240 theme of docking facilities is cylindrical, can be tubulose or the housing of inner hollow
Structure, 240 outer circle wall of docking facilities are equipped with docking protrusion, and docking protrusion is solid circle convex platform, docks protrusion very
Section is preferably rectangle so that inner tube 210 can be with docking convex side face with larger contact area.Inner tube 210 with
After docking facilities 240 dock, a part for the end of inner tube 210 is sleeved on 240 outer annular face of docking facilities, to tipping
It puts 240 and increases back up strong 210 junction of inner tube rigidity to a certain extent.Generally speaking, the main function of docking facilities 240 is to make
It is coaxial to obtain inner tube 210 so that inner tube 210 plays best mechanical property under coaxial state.
In other embodiments, the end surface shape of inner tube 210 can also be used to match with docking raised side view
Form, such as waveform or the zigzag for composition of discounting, advantage is can prevent inner tube 210 from rotating.
Assembled composite electrical accident maintenance device further includes pole socket 100, and pole socket 100 includes being fixedly mounted on ground
Pedestal 110 and tail portion and the hinged mounting base 120 of pedestal 110, mounting base 120 there is tubular cylinder shape far from hinged place
Cylinder base 122, supporting rod 200 are inserted into cylinder base 122.
As shown in Fig. 2, in pole socket 100,110 lower section of pedestal has buried part, and 110 top of pedestal is filled for hinge
It puts, 120 lower part of mounting base and the upper articulation of pedestal 110 so that the top hinged place that mounting base 120 can surround pedestal 110 turns
Dynamic, the top of mounting base 120 is cylinder base 122, and the bottom end of supporting rod 200 can be mounted in cylinder base 122.The lower part of pedestal 110 is
Platy structure so that top is with certain thickness cylinder base 122, i.e., sets muscle in the junction of cylinder base 122 and platy structure
Plate 121 is to strengthen the intensity of the junction.
In the present embodiment, prime minister splices outer tube 230, and the middle tube of small diameter 220 is then inserted into outer layer again
In pipe 230, it is inserted into middle tube 220 by the inner tube 210 of diameter minimum.It, can be in the splicing of inner tube 210
It is put by splicing tubes and the interval of docking facilities 240 so that docking facilities 240 play the role of its docking, supporting rod 200
It completes.Supporting rod 200 is inserted into cylinder base 122, by equipment, by 200 pull-up of supporting rod, mounting base 120 is along hinged place
It is rotated relative to pedestal 110, such as outdoors under state, the ground that pedestal 110 is set, the bottom of pedestal 110 is multiple otic placodes
Structure may be such that being inserted into soil for the stabilization of pedestal 110.
As shown in Figure 5-Figure 7, mounting base 120 is equipped with bar 600 of wrestling, and bar 600 of wrestling is straight-bar, and bar 600 of wrestling prolongs
It stretches and pulley is installed into 80 ° of -100 ° of angles, the free end for bar 600 of wrestling between 200 axis of main body and supporting rod；Assembled
Composite electrical accident maintenance device includes bracing wire 700, and 700 first end of bracing wire is connected to the middle part of supporting rod 200, second end around
Cross pulley.
As shown in figure 5, setting another pulley on the ground for wrestling 600 corresponding position of bar, bracing wire 700 from
When being pulled to the left by end, the pulling force that bracing wire 700 provides is transmitted to supporting rod 200 by the free end of pulley, bar 600 of wrestling
Medium position so that supporting rod 200 is gradually upright (as shown in Figure 6), until supporting rod 200 is completely erected (as shown in Figure 7).
In the process, wrestle it is dry play the role of lever, because in the present embodiment supporting rod 200 use composite material system
Into the lighter in weight of supporting rod 200 does not need to large scale equipment and pull-up work can be completed.Supporting rod 200 is detachable simultaneously,
His construction weight is also relatively light, is readily transported so that and the present apparatus is particularly suitable for the arduouser outdoor environment of environment and uses, while
It is suitble to repairing use of speedily carrying out rescue work.
Supporting rod 200 is equipped at least 4 anchors 300, and 300 first end of anchor is connect with 200 middle part of supporting rod, second end
It is anchored with ground；Anchor 300 is tight during 200 upright state of supporting rod, and angle is equal between multiple anchors 300.Such as Fig. 8 institutes
Show, after the supporting rod 200 in the present apparatus is completely erected, will not topple over for firm supporting rod 200, the section in supporting rod 200
Anchor 300 is installed, supporting rod 200 is anchored on bottom surface.Anchor 300 can have multilayer.
As shown in Figure 1, supporting rod 200 is equipped with hooping structure 500, hooping structure 500 is sleeved on outer tube 230, anchor ear
Structure 500 has symmetrically arranged two mounting holes, and 300 first end of anchor is fixed in mounting hole.In the present embodiment, it is propping up
The middle section position setting hooping structure 500 of strut 200, hooping structure 500 holds supporting rod 200 tightly so that hooping structure 500 will not
It is moved up and down along 200 body of supporting rod, by way of the through-hole that anchor 300 passes through 500 side of hooping structure so that anchor
300 have stable anchor point on supporting rod 200.The other end of anchor 300 is anchored on bottom surface.
Coil holder 400 has at least up and down two layers.Those skilled in the art can be according to the quantity of coil holder 400, support cable
Weight, the number of plies of splicing tubes and the wall thickness of splicing tubes in appropriate adjustment supporting rod 200.Such as in other embodiments,
Supporting rod 200 can be made of 2-5 layers of splicing tubes suit, theoretically for, the height of supporting rod 200 is higher, splicing tubes suit
The number of plies is more.200 material of main part of supporting rod in the present embodiment is meets material, such as carbon fiber, polyurethane etc., with power
Have excellent performance, antiacid corrosion-resistant, it is light-weight the advantages that.
Bar/tower body of supporting rod 200 is formed using pultrusion or Wrapping formed polyurethane section bar piecewise combination, poly- ammonia
Ester type material be with a certain proportion of fiber and polyurethane infiltration after according to setting mold pultrusion or be wound in definite shape and length
The tubing of degree, tubing are docked, using same layer by the way of outer layer socket, and each fault in joint of socket is opened.It is electrical in bar/tower head portion
Gap arrangement is related with voltage class feeder numbers at different levels, and corresponding column support type insulator and link insulator is respectively adopted, passes through
Hooping structure 500 is fixed on bar/tower body.Pedestal 110 be one can bear setting load special designing nonstandard product, bottom
Seat 110 has connecting rod of the bulb other end with parallel interface to connect with a headband, and connecting rod is connected by bar/tower seat.Cylinder base is
The bar of loads different from bearing/tower outer diameter is mating.Bracing wire 700 passes through anchor ear according to bar/tower height degree layered arrangement, each layer of upper end
Structure 500 is fixed on tower body, and by cord holder, 110 anchor of pedestal in underground, bracing wire 700 is that have answering for some strength for lower end
Condensation material bar is segmented or merogenesis can be simultaneously connected with each other by gold utensil.Pedestal 110 is made of composite material, intensity, size ruler
It is very little related with voltage class, the depth of burying, 700 number of plies of bracing wire.Hooping structure 500 is affixed to beat 700 institute of bracing wire at the top of rod segment
It needs.Intermediate hooping structure 500 is that the anti-skidding connector of outermost layer rod segment is required.Terminal hooping structure 500 is whole stands for a long while
Upright bar/tower is required.Wrestle bar 600, pulley, bracing wire 700 is to aid in mechanically or manually whole standing still for a long while the laborsaving needs of bar/tower
's.Technical method is to choose ground first, be assembled as above integral basis bar/tower include each connector, then, machinery or
It is manually stood up after integral basis bar/tower stands still for a long while in place by bracing wire 700, pulley, each layer bracing wire 700 passes through cord holder tightening and fix.
Repairing device be in accident maintenance can replace said function shaft tower run temporarily it is a kind of with the light of bracing wire 700
Type bar/tower.Light-duty bar/tower include bar/tower body portion, bar/tower head portion, pedestal 110, bracing wire 700, pedestal 110, hooping structure 500,
The hooping structure 500 of centre, the hooping structure 500 of end, wrestle bar 600, pulley, bracing wire 700.Bar/tower body portion is composite wood
Material section combination forms, and bar/tower head portion is that composite material support insulator and pull rod suspension insulator are composed, pedestal 110
It is steel construction product, bracing wire 700 and pedestal 110 are composite products.
As shown in figure 9, present apparatus outer tube 230 is equipped with outer layer reinforcing sleeve 231 in its seam crossing, to strengthen outer tube
Intensity at 230 docking.
As shown in Figure 10, the utility model utilizes high intensity, light-weight, good insulation preformance, the designability of composite material
Can be good, non-maintaining, environmentally protective the features such as, a kind of assembled composite electrical accident maintenance device is provided, repairing device is
A kind of light-duty bar/tower with bracing wire 700 that the shaft tower of said function can be replaced to run temporarily in accident maintenance.Supporting rod 200
Bar/tower body portion is that composite material section bar is composed, and tower head portion coil holder 400 is that composite material support insulator and pull rod suspension type are exhausted
Edge sub-portfolio forms, and the pedestal 110 is steel construction product, and the bracing wire 700 and pulling plate 710 are composite products.
Bar/its electric clearance of tower head portion arrangement is related with voltage class feeder numbers at different levels, and corresponding column support type is respectively adopted
Insulator and link insulator are fixed on by hooping structure 500 on bar/tower body.The pedestal 110, which is one, can bear to set
The special designing nonstandard product of constant load, pedestal 110 have connecting rod of the bulb other end with parallel interface to connect with a headband, even
Bar is connected by bar/tower seat.Pedestal 110 is that bar/tower outer diameter of loads different from bearing is mating.Bracing wire 700 is according to bar/tower height
Layered arrangement is spent, 200 tower body of supporting rod is fixed in each layer of upper end by hooping structure 500, and lower end passes through cord holder, pulling plate
For 710 anchors in underground, bracing wire 700 is that the composite bar with some strength is segmented or merogenesis simultaneously can mutually be interconnected by gold utensil
It connects.Pulling plate 710 is made of composite material, and intensity, size dimension are related with voltage class, the depth of burying, the bracing wire number of plies.Anchor ear
Structure 500 is affixed to play bracing wire at the top of rod segment required.Intermediate hooping structure 500 is that outermost layer supporting rod 200 is anti-skidding
Connector is required.Terminal hooping structure 500 is that whole to stand still for a long while bar/tower required.
Wrestle bar 600, pulley, bracing wire 700 is to aid in mechanically or manually whole standing still for a long while the laborsaving needs of bar/tower.This technology
Method is to choose ground first, has been assembled as above integral basis bar/tower and has included each connector, then, has mechanically or manually led to
Cross bracing wire 700, pulley stands up after integral basis bar/tower stands still for a long while in place, each layer bracing wire 700 passes through cord holder tightening and fixes.
More than content is only the preferred embodiment of the utility model, for those of ordinary skill in the art, according to this reality
It, in specific embodiments and applications can be with many changes may be made, as long as these variations are without departing from this with novel thought
The design of utility model, belongs to the scope of protection of the utility model.
Claims (10)
1. a kind of assembled composite electrical accident maintenance device, it is characterised in that：Including the supporting rod uprightly set and position
In the coil holder of support bar top, the supporting rod includes at least two layers splicing tubes made of the composite material being set with, and outer layer
The internal diameter of pipe is more than the outer diameter of inner tube；The head and the tail stitching portion position that the inner tube head and the tail stitching portion is located at outer tube is staggeredly set
It puts, the head and the tail stitching portion of adjacent two layers inner tube is staggered.
2. assembled composite electrical accident maintenance device according to claim 1, it is characterised in that：The inner tube
The docking facilities for adjacent inner layer pipe axis to be aligned are equipped at docking.
3. assembled composite electrical accident maintenance device according to claim 2, it is characterised in that：Described pair of tipping
It installs in inner tube head and the tail stitching portion, the main body of the docking facilities is cylindric, and the outer circumference surface of docking facilities, which has, dashes forward
The cross section stepped of the cricoid docking protrusion gone out, the outer ring surface of the docking protrusion and the outer ring surface of docking facilities；Institute
It states adjacent inner tube and is inserted into docking facilities main body outer ring surface respectively, and end abutment is in docking protrusion.
4. assembled composite electrical accident maintenance device according to claim 3, it is characterised in that：Described pair of tipping
The main body put is tubulose.
5. assembled composite electrical accident maintenance device according to claim 1, it is characterised in that：The assembled
Composite electrical accident maintenance device further includes pole socket, the pole socket include the pedestal for being fixedly mounted on ground and tail portion with
The hinged mounting base of pedestal, the mounting base have the cylinder base of tubular cylinder shape far from hinged place, and the supporting rod is inserted into cylinder
In seat.
6. assembled composite electrical accident maintenance device according to claim 5, it is characterised in that：The mounting base
Bar of wrestling is equipped with, the bar of wrestling is straight-bar, into 80 ° -100 ° between the extension main body of the bar of wrestling and support rod axis
Angle, the free end of the bar of wrestling are equipped with pulley；The assembled composite electrical accident maintenance device includes drawing
Line, the bracing wire first end are connected in the middle part of supporting rod, and second end bypasses pulley.
7. assembled composite electrical accident maintenance device according to claim 1, it is characterised in that：The supporting rod
At least 4 anchors are equipped with, are connect in the middle part of anchor first end and supporting rod, second end is anchored with ground；The supporting rod is upright
Anchor is tight during state, and angle is equal between multiple anchors.
8. assembled composite electrical accident maintenance device according to claim 7, it is characterised in that：The supporting rod
Hooping structure is equipped with, the hooping structure is sleeved on outer tube, and hooping structure has symmetrically arranged multiple mounting holes, described
Anchor first end is fixed in mounting hole.
9. assembled composite electrical accident maintenance device according to claim 1, it is characterised in that：The coil holder tool
Have at least up and down two layers.
10. assembled composite electrical accident maintenance device according to claim 7, it is characterised in that：The anchor
There is multilayer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721219554.6U CN207583059U (en) | 2017-09-20 | 2017-09-20 | A kind of assembled composite electrical accident maintenance device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721219554.6U CN207583059U (en) | 2017-09-20 | 2017-09-20 | A kind of assembled composite electrical accident maintenance device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207583059U true CN207583059U (en) | 2018-07-06 |
Family
ID=62728444
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721219554.6U Active CN207583059U (en) | 2017-09-20 | 2017-09-20 | A kind of assembled composite electrical accident maintenance device |
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| Country | Link |
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| CN (1) | CN207583059U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109519028A (en) * | 2017-09-20 | 2019-03-26 | 胡广生 | A kind of assembled composite electrical accident maintenance device |
| CN114753702A (en) * | 2022-05-07 | 2022-07-15 | 国网山东省电力公司利津县供电公司 | Combined steel pipe pole frame for electric power emergency repair |
-
2017
- 2017-09-20 CN CN201721219554.6U patent/CN207583059U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109519028A (en) * | 2017-09-20 | 2019-03-26 | 胡广生 | A kind of assembled composite electrical accident maintenance device |
| CN114753702A (en) * | 2022-05-07 | 2022-07-15 | 国网山东省电力公司利津县供电公司 | Combined steel pipe pole frame for electric power emergency repair |
| CN114753702B (en) * | 2022-05-07 | 2023-12-15 | 国网山东省电力公司利津县供电公司 | Combined steel pipe rod frame for electric power emergency repair |
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