CN207664576U - Transmission line of electricity down conductor dismounts laborsaving protective device - Google Patents
Transmission line of electricity down conductor dismounts laborsaving protective device Download PDFInfo
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- CN207664576U CN207664576U CN201721867158.4U CN201721867158U CN207664576U CN 207664576 U CN207664576 U CN 207664576U CN 201721867158 U CN201721867158 U CN 201721867158U CN 207664576 U CN207664576 U CN 207664576U
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- mandril
- pilot hole
- cylindrical body
- mounting groove
- laborsaving
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Abstract
Transmission line of electricity down conductor dismounts laborsaving protective device, including support base, guiding mandril, compression spring, fixed mandril；The support base includes cylindrical body, interconnecting piece, mounting portion；The shaft core position of the cylindrical body is equipped with pilot hole, it is connect with mounting portion by interconnecting piece on the outside of one end of cylindrical body, mounting groove is equipped on the mounting portion, the notch direction of the mounting groove is vertical with the axis direction of pilot hole and does not intersect with cylindrical body；The position that the notch direction of the mounting groove is intersected with the axis direction of pilot hole forms working space；Advantage is, simple in structure, securely and reliably, can effectively avoid the danger that downlead rapidly rebounds in dismounting.
Description
Technical field
The utility model is related to extra-high tension unit service technique field, specially transmission line of electricity down conductor dismounting is laborsaving
Protective device.
Background technology
There is connecing for aerial earth wire shaft tower into line segment (shaft tower in two kilometer ranges that enter the station) in transmission line of electricity technological supervision work
Ground resistance detection cycle is 2 years primary, and non-into line segment is 5 years primary, therefore annual has about 600-700 base shaft towers to need with shaking
Table shakes survey ground resistance.As shown in Figure 1, the premise for shaking survey ground resistance must be down conductor a1 to be disconnected and tower material angle
After the connection of steel a2, can just it measure.So dismounting down conductor a1 is the necessary link of insulating resistance measuring.Due to by
The influence of Different field operating mode, down conductor installation has no unified standard criterion, so down conductor has installation not
Criterion problem is fixed as shown in Fig. 2, when so as to cause the bolt a3 for dismantling down conductor because being detached from bolt, itself bending is answered
Power moment is released, and generates outer tension, and operating personnel is injured in rebound outward, flies while also result in nut, bolt bullet, loses
The problems such as (have and occurred to flick down conductor wounding event).After resistance detection, down conductor original appearance need to be restored,
Equally exist installation difficult problem in place.After down conductor flicks deformation, at least need two people's work compounds that can just make
Down conductor is restored to initial installation condition.Therefore propose that the province of this project one fast assembling-disassembling down conductor of development tries hard to keep
Protection unit.
Utility model content
The shortcomings that the purpose of the utility model is to overcome the above-mentioned prior arts provides a kind of transmission line of electricity down conductor and tears open
It fills laborsaving protective device and plays and protect operating personnel to preserve from when dismounting downlead, while easily can efficiently dismount and draw again
It is offline.
The utility model is achieved through the following technical solutions：
Transmission line of electricity down conductor dismounts laborsaving protective device, including support base, guiding mandril, compression spring, fixed mandril；
The support base includes cylindrical body, interconnecting piece, mounting portion；The shaft core position of the cylindrical body is equipped with pilot hole,
It is connect with mounting portion by interconnecting piece on the outside of one end of cylindrical body, mounting groove, the peace is equipped on the mounting portion
The notch direction of tankage is vertical with the axis direction of pilot hole and does not intersect with cylindrical body；The notch direction of the mounting groove
The position intersected with the axis direction of pilot hole forms working space；Threaded hole connection installation is equipped on the mounting portion
Slot；Handle portion, external thread part are followed successively by the fixed mandril；The guiding mandril stretches into work across the pilot hole
Make space, the compression spring is arranged in pilot hole, and one end connects the side that pilot hole deviates from working space, other end connection
On being oriented to mandril；The external thread part of the fixed mandril and the threaded hole of mounting portion coordinate mounting groove of entering.
As the improvement of said program, the pilot hole is internally provided with the inner cavity that internal diameter is more than both ends aperture；Described
It is oriented to mandril and is followed successively by handle portion, the first polished rod portion, blocking part, the second polished rod portion；The outer diameter in the second polished rod portion is less than
The outer diameter of downlead connecting plate fixing bolt, the first polished rod of blocking part radially protruding portion；The guiding mandril supports
Stopper is arranged in the inner cavity of pilot hole, and pilot hole stretches out towards working space in the second polished rod portion, and described compression spring one end is kept out
Deviate from the side of working space in the inner cavity of pilot hole, the other end is kept out on the blocking part for being oriented to mandril.
As the improvement of said program, the support base is oriented to mandril, fixed mandril as isolation material.
Using shaft tower main material angle steel as support fixed pedestal, downlead connecting plate fixing bolt is found, being threaded
The opening protection support base of mandril is fixed at downlead connecting plate fixing bolt, under pulling screw rod guiding mandril that its alignment is made to draw
Behind the center of line connecting plate fixing bolt end, angle steel fixed mandril is threadedly tightened, keeps whole device firm
It is fixed on shaft tower main material angle steel side, that is, the installation for completing whole device works in place.Fork spanner is taken out, fixed spiral shell is unscrewed
Mother makes it gradually exit, while downlead connecting plate is gradually exited by the tension of itself also nut, and screw rod is oriented to mandril and also exists
Under the active force of its compression spring, puller bolt end always, with the gradually retrogressing of nut, screw rod is oriented to mandril, and to head on bolt continuous
It moves outward, until nut retreats to screw rod and is oriented on mandril, downlead connecting plate also retreats to screw rod with nut and leads at this time
To on mandril, screw rod is manually taken out, that is, realizes the separation of downlead and shaft tower main material angle steel.
The utility model has the advantages that：
1. it is simple in structure, securely and reliably, it can effectively avoid the danger that downlead rapidly rebounds in dismounting.
2. it can reuse, it is easy to operate, it is suitable for large-scale promotion and application.
Description of the drawings
Fig. 1 is the structural schematic diagram of the down conductor of the prior art.
Fig. 2 is that the down conductor of the prior art disassembles status diagram.
Fig. 3 is the structural schematic diagram of the laborsaving protective device of dismounting of the utility model.
Fig. 4 is the structural schematic diagram of the Section A-A of Fig. 3.
Fig. 5 is that the laborsaving protective device of dismounting of the utility model disassembles 1 schematic diagram of process status.
Fig. 6 is that the laborsaving protective device of dismounting of the utility model disassembles 2 schematic diagram of process status.
Fig. 7 is that the laborsaving protective device of dismounting of the utility model disassembles 3 schematic diagram of process status.
Fig. 8 is that the laborsaving protective device of dismounting of the utility model disassembles 4 schematic diagram of process status.
Specific implementation mode
Embodiment 1
As shown in Figure 3, Figure 4, transmission line of electricity down conductor dismounts laborsaving protective device, including support base 1, guiding mandril
2, compression spring 3, fixed mandril 4；The support base 1 includes cylindrical body 5, interconnecting piece 6, mounting portion 7；The cylindrical body 5
Shaft core position be equipped with pilot hole 8, connect with mounting portion 7 by interconnecting piece 6 on the outside of one end of cylindrical body 5, described
Mounting portion 7 be equipped with mounting groove 9, the notch direction of the mounting groove 9 it is vertical with the axis direction of pilot hole 8 and not with column
Ontology 5 intersects；The position that the notch direction of the mounting groove 9 is intersected with the axis direction of pilot hole 8 forms working space 10；
It is equipped with threaded hole 11 on the mounting portion 7 and is connected to mounting groove 9；Handle portion 12, outer spiral shell are followed successively by the fixed mandril 4
Line portion 13；The guiding mandril 2 stretches into working space 10 across the pilot hole 8, and the compression spring 3 is arranged in pilot hole
In 8, one end connects the side that pilot hole 8 deviates from working space 10, and the other end, which is connected to, to be oriented on mandril 2；The fixation
The external thread part 13 of mandril 4 coordinates mounting groove 9 of entering with the threaded hole 11 of mounting portion 7.The pilot hole 8 is internally provided with internal diameter
More than the inner cavity 14 in both ends aperture；The guiding mandril 2 is followed successively by handle portion 15, the first polished rod portion 16, blocking part 17,
Two polished rod portions 18；The outer diameter in the second polished rod portion 18 is less than the outer diameter of downlead connecting plate fixing bolt a3, and described supports
17 the first polished rod of radially protruding portion 16 of stopper；The blocking part 17 of the guiding mandril 2 is arranged in the inner cavity of pilot hole 8 14,
Pilot hole 8 stretches out towards working space 10 in second polished rod portion 18, and described 3 one end of compression spring is kept out carries on the back in the inner cavity of pilot hole 8 14
Side from working space 10, the other end are kept out on the blocking part 17 for being oriented to mandril 2.The support base 1, be oriented to mandril 2,
Fixed mandril 4 is isolation material.
Operation principle：As shown in Fig. 5 to Fig. 8, using shaft tower main material angle steel as support fixed pedestal, downlead company is found
Fishplate bar fixing bolt a3 is arranged the mounting groove 9 of support base 1 and is located at downlead connecting plate fixing bolt a3 in shaft tower main material angle steel
It is threadedly twisted after pulling guiding mandril 2 that it is made to be directed at the downlead connecting plate ends fixing bolt a3 center at place
Mandril 4 is fastened, whole device is made to be firmly fixed to shaft tower main material angle steel side, that is, the installation for completing whole device is in place
Work.Fork spanner is taken out, unscrews fixing nut, it is made gradually to exit, while downlead connecting plate is made fixation by the tension of itself
Nut gradually exits, and is oriented to mandril 2 also under the active force of its compression spring 3, always puller bolt end, gradually with nut
It retreats, guiding mandril 2 heads on bolt and constantly moves outward, is oriented on mandril 2 until nut retreats to, and downlead connects at this time
Plate is also retreated to nut and is oriented on mandril 2, is manually taken out screw rod, that is, is realized the separation of downlead and shaft tower main material angle steel.
Downlead connecting plate is also retreated to nut and is oriented on mandril 2, is manually taken out screw rod, that is, is realized downlead and bar
The separation of tower main material angle steel.Entire protection support base 1 and guiding mandril 2 all use insulating materials, in downlead and shaft tower master
After material angle steel completely disengages out, that is, realize disconnection.When insulating resistance measuring finishes, it is only necessary to which right handgrip screw rod is pushed into shaft tower
Main material Bolted angle connection hole, left hand, which is gently drawn, is oriented to mandril 2, and screw rod is gradually pushed into, up through downlead connecting plate, is then turned
Screw rod is connect with nut, until tightening completely, i.e., has been restored to initial installation condition again, has been completed entire operation process.
Above-listed detailed description is illustrating for the utility model possible embodiments, which is not to limit
The scope of the claims of the utility model, all equivalence enforcements or change without departing from carried out by the utility model are intended to be limited solely by this case
In the scope of the claims.
Claims (3)
1. transmission line of electricity down conductor dismounts laborsaving protective device, which is characterized in that including support base, be oriented to mandril, compression spring,
Fixed mandril；The support base includes cylindrical body, interconnecting piece, mounting portion；The shaft core position of the cylindrical body is equipped with
Pilot hole is connect by interconnecting piece with mounting portion on the outside of one end of cylindrical body, and mounting groove is equipped on the mounting portion,
The notch direction of the mounting groove is vertical with the axis direction of pilot hole and does not intersect with cylindrical body；The mounting groove
The position that notch direction is intersected with the axis direction of pilot hole forms working space；Threaded hole is equipped on the mounting portion to connect
Logical mounting groove；Handle portion, external thread part are followed successively by the fixed mandril；The guiding mandril passes through the pilot hole
Working space is stretched into, the compression spring is arranged in pilot hole, and one end connects the side that pilot hole deviates from working space, another
End, which is connected to, to be oriented on mandril；The external thread part of the fixed mandril and the threaded hole of mounting portion coordinate mounting groove of entering.
2. transmission line of electricity down conductor according to claim 1 dismounts laborsaving protective device, which is characterized in that described
Pilot hole is internally provided with the inner cavity that internal diameter is more than both ends aperture；The guiding mandril is followed successively by handle portion, the first polished rod portion, supports
Stopper, the second polished rod portion；The outer diameter in the second polished rod portion is less than the outer diameter of downlead connecting plate fixing bolt, and described supports
The first polished rod of stopper radially protruding portion；The blocking part of the guiding mandril is arranged in the inner cavity of pilot hole, the second polished rod portion
Pilot hole is stretched out towards working space, and described compression spring one end is kept out deviates from the side of working space in the inner cavity of pilot hole, separately
It keeps out on the blocking part for being oriented to mandril one end.
3. transmission line of electricity down conductor according to claim 1 or 2 dismounts laborsaving protective device, which is characterized in that institute
Support base, guiding mandril, the fixed mandril stated are isolation material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721867158.4U CN207664576U (en) | 2017-12-27 | 2017-12-27 | Transmission line of electricity down conductor dismounts laborsaving protective device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721867158.4U CN207664576U (en) | 2017-12-27 | 2017-12-27 | Transmission line of electricity down conductor dismounts laborsaving protective device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207664576U true CN207664576U (en) | 2018-07-27 |
Family
ID=62944073
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721867158.4U Active CN207664576U (en) | 2017-12-27 | 2017-12-27 | Transmission line of electricity down conductor dismounts laborsaving protective device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207664576U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109980392A (en) * | 2019-04-24 | 2019-07-05 | 广州供电局有限公司 | Shaft tower and attachment device for connecting tower body and down conductor |
| CN114012650A (en) * | 2021-12-06 | 2022-02-08 | 中国南方电网有限责任公司超高压输电公司百色局 | Disassembling tool |
-
2017
- 2017-12-27 CN CN201721867158.4U patent/CN207664576U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109980392A (en) * | 2019-04-24 | 2019-07-05 | 广州供电局有限公司 | Shaft tower and attachment device for connecting tower body and down conductor |
| CN114012650A (en) * | 2021-12-06 | 2022-02-08 | 中国南方电网有限责任公司超高压输电公司百色局 | Disassembling tool |
| CN114012650B (en) * | 2021-12-06 | 2023-08-08 | 中国南方电网有限责任公司超高压输电公司百色局 | Dismounting tool |
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