CN209929849U - Tool for live replacement of insulator of ultrahigh-voltage large-span tangent tower - Google Patents
Tool for live replacement of insulator of ultrahigh-voltage large-span tangent tower Download PDFInfo
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- CN209929849U CN209929849U CN201920758503.3U CN201920758503U CN209929849U CN 209929849 U CN209929849 U CN 209929849U CN 201920758503 U CN201920758503 U CN 201920758503U CN 209929849 U CN209929849 U CN 209929849U
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- lifting rod
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- 239000012212 insulator Substances 0.000 title claims abstract description 31
- 238000003780 insertion Methods 0.000 claims description 17
- 230000037431 insertion Effects 0.000 claims description 17
- XBWAZCLHZCFCGK-UHFFFAOYSA-N 7-chloro-1-methyl-5-phenyl-3,4-dihydro-2h-1,4-benzodiazepin-1-ium;chloride Chemical compound [Cl-].C12=CC(Cl)=CC=C2[NH+](C)CCN=C1C1=CC=CC=C1 XBWAZCLHZCFCGK-UHFFFAOYSA-N 0.000 claims description 7
- 230000005611 electricity Effects 0.000 claims description 7
- 238000000034 method Methods 0.000 abstract description 17
- 230000001737 promoting effect Effects 0.000 abstract 1
- 230000005540 biological transmission Effects 0.000 description 3
- 230000000903 blocking effect Effects 0.000 description 3
- 238000007789 sealing Methods 0.000 description 3
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- 230000007774 longterm Effects 0.000 description 2
- 230000035882 stress Effects 0.000 description 2
- 229910000746 Structural steel Inorganic materials 0.000 description 1
- 230000032683 aging Effects 0.000 description 1
- 239000004020 conductor Substances 0.000 description 1
- 230000006866 deterioration Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
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Abstract
The utility model provides an insulator's multiplexer utensil is changed in big span of superhigh pressure tangent tower electrification, including cross arm card and wire lifting mechanism, the cross arm card includes first wedge and second wedge, the upper end of first wedge is equipped with the recess, the upper end of second wedge is equipped with the lug that matches with the recess, be equipped with the through-hole that runs through in recess and the lug, be equipped with the bolt in the through-hole, the nut is installed to the one end cooperation that the bolt stretches out the through-hole, be equipped with the spill draw-in groove in the hookup location department of first wedge and second wedge bottom, the width distance of spill draw-in groove can be adjusted to the cooperation degree of adjusting bolt and nut, compare with current instrument, can utilize the characteristics of cross arm head along the line direction back to back angle bar more rationally, wherein the cross arm card is fixed on the cross arm, make the whole in-process of promoting the wire, the lead screw can be atress perpendicularly, has avoided the slant to lift by crane, and the wire lifters on the two sides can be mutually used for protecting the backs, so that the safety in the operation process is greatly improved.
Description
Technical Field
The utility model belongs to the technical field of the utensil technique is changed to the insulator and specifically relates to a big span tangent tower of superhigh pressure changes multiplexer utensil of insulator with electricity.
Background
The ultra/extra-high voltage transmission line is a backbone network frame of a power grid in China, but in long-term operation, the insulators and hardware are prone to aging and deterioration under the action of long-term high-voltage load and comprehensive mechanical stress, and if the insulators and the hardware are not replaced in time, the safe and stable operation of the transmission line is directly influenced, and even serious accidents of the power grid are caused. The ultra-high voltage line power transmission corridor is complicated in terrain, when the insulator is replaced by lifting a wire in a large span live manner in a mountainous area, only a hydraulic lead screw double-lifting-point lifting mode can be adopted, but the cross arm head of an iron tower often does not have a proper lifting point, the traditional double-lifting-point lifting mode easily causes the stress deformation of an angle iron at the cross arm lifting point in the lifting process, the working safety is seriously influenced, in addition, tools and appliances of the method are generally heavy, the mounting and dismounting are complicated, the physical strength of operators is greatly consumed, and the trouble is brought to the replacement operation of the insulator.
Disclosure of Invention
In order to solve the problem, an object of the utility model is to provide an electrified multiplexer utensil of changing the insulator of big span tangent tower of superhigh pressure when improving work efficiency, can also reach the purpose that reduces operation in-process risk.
The utility model provides a technical scheme that its technical problem adopted is: the utility model relates to an ultra-high voltage large-span tangent tower electrified insulator replacing tool, which comprises a cross arm clamp and a wire lifter, wherein the cross arm clamp comprises a first wedge block and a second wedge block, the upper end of the first wedge block is provided with a groove, the upper end of the second wedge block is provided with a lug matched with the groove, through holes are arranged in the groove and the lug, a bolt is arranged in the through hole, one end of the bolt extending out of the through hole is provided with a nut in a matching way, the connecting position of the bottom ends of the first wedge block and the second wedge block is provided with a concave clamping groove, the width distance of the concave clamping groove can be adjusted by adjusting the matching degree of the bolt and the nut, mounting holes are vertically arranged on both sides of the concave clamping groove, one mounting hole is arranged on the first wedge block, the other mounting hole is arranged on the second wedge block, each mounting hole is internally provided with the wire lifter, each wire lifter comprises a mechanical lead screw, the mechanical lead screw is located in the mounting hole, the bottom of the mechanical lead screw is hinged with an insulating rod, the bottom of the insulating rod is hinged with a hydraulic lead screw, the bottom of the hydraulic lead screw is hinged with a wire lifting rod, and a hook is arranged on the wire lifting rod. Further, the wire lifting rod comprises a first wire lifting rod, the bottom end of the first wire lifting rod is fixedly connected with a second wire lifting rod through a screw, a first hook is arranged on the first wire lifting rod, and a second hook is arranged on the second wire lifting rod. Furthermore, the surface of the concave clamping groove is provided with an anti-skid thread surface. Furthermore, the mechanical screw rod is connected with the insulating rod, the insulating rod is connected with the hydraulic screw rod, and the hydraulic screw rod is connected with the wire lifting rod through detachable bolt fasteners. Further, the couple includes the arc die-pin, and the one end fixed connection of arc die-pin has a dwang through first pivot is articulated on the other end of arc die-pin on the wire lifting rod, corresponding to the top position of dwang, still is equipped with the pin that can contact rather than on the wire lifting rod, coaxial arrangement has first torsion spring in the first pivot, and first torsion spring has the trend that makes the dwang press to the pin rather than contacting all the time. Furthermore, the wire lifting rod comprises two groups of wire lifting clamping devices which are arranged up and down, the wire lifting clamping devices all comprise a sliding sleeve, the sliding sleeve is positioned on the wire lifting rod and can slide up and down along the wire lifting rod, a hook is fixedly installed on the wire lifting rod at the bottom of the sliding sleeve, a poking block is arranged on the wire lifting rod between the hook and the sliding sleeve, a positioning avoiding groove is formed in the sliding sleeve corresponding to the position of the poking block, mounting plates are horizontally arranged on two sides of the positioning avoiding groove, an L-shaped plugging plate is installed between the mounting plates through a second rotating shaft, a positioning block is fixedly installed on the upper sides of the two mounting plates, a second torsional spring is coaxially installed on the second rotating shaft, the second torsional spring always has the tendency of pressing the L-shaped plugging plate to the positioning block, when the sliding sleeve descends and the poking block is positioned in the positioning avoiding groove, the L-shaped plugging plate can be pushed to rotate to be matched with the hook for sealing, and a locking device matched, locking device is equipped with on the wire lifting rod including the location inserted block with location inserted block matched with location jack, corresponding to the location inserted block, has seted up the horizontally sliding hole in the sliding sleeve, is equipped with in the sliding hole rather than matched with sliding block, and the one end of sliding block passes through the connecting rod and connects the location inserted block, and the pulling handle is installed to the other end of sliding block the fixed mounting annular plate in the sliding hole of connecting rod and sliding block hookup location department installs the spring between annular plate and location inserted block, the spring is located the periphery of connecting rod, and has the trend that makes the location inserted block get into the location jack all the time, and above-mentioned two wires promote the pulling handle fixed connection between the clamping device to in order to realize two wires and promote clamping device's linkage.
The utility model has the advantages of: a big span of superhigh pressure tangent tower electrified multiplexer utensil of changing insulator, compare with current instrument, can utilize the characteristics of cross arm head along the line direction angle bar back to back more rationally, wherein the cross arm card is fixed on the cross arm for the in-process of whole promotion wire, the lead screw can perpendicular atress, has avoided the slant to lift by crane, has improved the efficiency of work, and the wire lifting mechanism of both sides can each other be back protection, has greatly improved the security of operation in-process. The distance between first wedge and the second wedge can be adjusted so that the spill draw-in groove can adapt to the cross arm of different models, and the suitability is more extensive. All parts of the tool for replacing the insulator of the ultrahigh-voltage large-span tangent tower in an electrified way are connected by detachable bolt fasteners, so that the tool is convenient to detach, install, carry and transport. The couple on the wire lifting rod can take different structures to come the stable promotion of wire, when improving work efficiency, can also reach the purpose that reduces operation in-process risk.
Drawings
Fig. 1 is a schematic structural diagram of the present invention;
fig. 2 is a schematic structural view of the cross arm clip of the present invention;
FIG. 3 is a top view of FIG. 2;
FIG. 4 is a schematic structural view of an embodiment of the wire lifting rod of the present invention;
FIG. 5 is an enlarged partial view of I of FIG. 4;
FIG. 6 is a view taken in the direction A of FIG. 5;
FIG. 7 is a schematic structural view of another embodiment of the wire lifting rod of the present invention;
FIG. 8 is an enlarged partial view of II of FIG. 7;
FIG. 9 is an enlarged view of the top view of FIG. 7;
fig. 10 is a schematic view of the working state of the thread take-up lever shown in fig. 7.
In the figure, 1, a first wedge-shaped block, 2, a second wedge-shaped block, 3, a groove, 4, a through hole, 6, an adjusting bolt, 7, a nut, 8, a concave clamping groove, 9, a mounting hole, 10, a mechanical screw rod, 11, an insulating rod, 12, a hydraulic screw rod, 13, a first wire lifting rod, 14, a second wire lifting rod, 15, a first hook, 16, a second hook, 17, a bolt fastener, 18, an arc-shaped supporting rod, 19, a rotating shaft, 20, a blocking rod, 22, a sliding sleeve, 24, a moving block, 25, a positioning avoiding groove, 26, a mounting plate, 27, a second rotating shaft, 28L-shaped blocking plate, 29, a positioning block, 30, a second.
Detailed Description
A big span tangent tower of superhigh pressure changes multiplexer utensil of insulator with electricity, as shown in fig. 1, including cross arm card and wire lifting mechanism, as shown in fig. 2 and fig. 3, the cross arm card includes first wedge 1 and second wedge 2, and the upper end of first wedge 1 is equipped with recess 3, and the upper end of second wedge 2 is equipped with and recess 3 matched with lug 4, is equipped with the through-hole 5 that runs through in recess 3 and the lug 4, is equipped with bolt 6 in the through-hole 5, and nut 7 is installed in the cooperation of the one end that bolt 6 stretches out through-hole 5. A concave clamping groove 8 is formed in the connecting position of the bottom ends of the first wedge-shaped block 1 and the second wedge-shaped block 2, the width distance of the concave clamping groove 8 can be adjusted by adjusting the matching degree of the bolt 6 and the nut 7, and therefore the cross arms can be clamped and fixed on cross arms of different types. Mounting hole 9 has been seted up to the equal vertical mounting hole that has seted up in spill draw-in groove 8's both sides, and one of them mounting hole 9 is located first wedge 1, and another mounting hole 9 is located second wedge 2, all is equipped with the wire lifting mechanism in every mounting hole 9, every wire lifting mechanism all includes mechanical lead screw 10, and mechanical lead screw 10 is located mounting hole 9 the bottom of mechanical lead screw 10 articulates there is insulator spindle 11, and the bottom of insulator spindle 11 articulates there is hydraulic lead screw 12, and hydraulic lead screw 12's bottom articulates the lifter, is equipped with the couple on the lifter.
When using a big span of superhigh pressure tangent tower electrified tool who changes insulator when carrying out insulator dismouting operation, at first adjustment spill draw-in groove 8's width distance, make its cross arm with insulator upper portion cooperate, then fix whole device on the cross arm, adjust mechanical lead screw 10 and hydraulic lead screw 12 in proper order, make the couple on its bottom both ends lifting wire pole mention the wire to shift the load of wire to the insulator on the cross arm, so that operating personnel changes the dismantlement of insulator.
Preferably, in order to facilitate the four-split conductor at the bottom of the insulator to be sequentially lifted, the wire lifting rod comprises a first wire lifting rod 13, the bottom end of the first wire lifting rod 13 is fixedly connected with a second wire lifting rod 14 through a screw, a first hook 15 is arranged on the first wire lifting rod 13, and a second hook 16 is arranged on the second wire lifting rod 14.
Preferably, in order to increase the friction force between the cross arm clamp and the cross arm during installation, the surface of the concave clamping groove 8 is provided with an anti-skid surface so as to ensure the connection firmness during the disassembly and assembly process.
Preferably, in order to facilitate the assembly, disassembly, storage and transportation of the whole device at a use site, the mechanical screw 10 and the insulating rod 11, the insulating rod 11 and the hydraulic screw 12, and the hydraulic screw 12 and the wire lifting rod are connected by detachable bolt fasteners 17.
Preferably, in order to enable the wire to be always located in the hook in the lifting process, as shown in fig. 6, the hook comprises an arc-shaped supporting rod 18, one end of the arc-shaped supporting rod 18 is fixedly connected to the wire lifting rod, the other end of the arc-shaped supporting rod 18 is hinged to a rotating rod 20 through a first rotating shaft 19, a stop lever 21 capable of contacting with the wire lifting rod is further arranged on the wire lifting rod corresponding to the top end position of the rotating rod 20, a first torsion spring 22 is coaxially arranged on the first rotating shaft 19, and the first torsion spring 22 always has a tendency that the rotating rod 20 presses the stop lever 21 to contact with the stop lever. When the hook with the structure is used for lifting a wire, the wire firstly falls onto the rotating rod 20, in the process that the hook gradually moves upwards, the rotating rod 20 overcomes the pressure of the first torsion spring 22 and rotates along the first rotating shaft 19 due to the dead weight of the wire, the rotating rod 20 is separated from the stop lever 21, the wire falls into the arc-shaped support rod 18, the rotating rod 20 losing the pressure of the wire returns to the original position under the action of the first torsion spring 22, the wire is fixed in the closed ring formed by the arc-shaped support rod 18, the rotating rod 20 and the stop lever 21, and therefore the wire cannot be separated from the hook in the process of lifting the wire.
Preferably, to further facilitate the manual adjustment of the closed and open states of the wires by the operator, as shown in figure 7, the wire lifting rod comprises two groups of wire lifting and clamping devices which are arranged up and down, the wire lifting and clamping devices all comprise a sliding sleeve 23, the sliding sleeve 23 is positioned on the wire lifting rod and can slide up and down along the wire lifting rod, a hook is fixedly arranged on the wire lifting rod at the bottom of the sliding sleeve 23, a shifting block 24 is arranged on the wire lifting rod between the hook and the sliding sleeve 23, corresponding to the position of the toggle block 24, a positioning avoiding groove 25 is arranged in the sliding sleeve 23, mounting plates 26 are horizontally arranged on both sides of the positioning avoiding groove 25, an L-shaped plugging plate 28 is mounted between the mounting plates 26 through a second rotating shaft 27, as shown in fig. 9, a positioning block 29 is fixedly arranged on the upper sides of the two mounting plates 26, a second torsion spring 30 is coaxially arranged on the second rotating shaft 27, the second torsion spring 30 always tends to press the L-shaped blocking plate 28 against the positioning block 29. When the sliding sleeve 23 descends and the shifting block 24 is positioned in the positioning avoidance groove 25, the L-shaped plugging plate 28 can be pushed to rotate to be matched and sealed with the hook.
As shown in fig. 8, a locking device matched with the wire-lifting rod is further arranged in the sliding sleeve 23, the locking device comprises a positioning insertion block 31, a positioning insertion hole 32 matched with the positioning insertion block 31 is arranged on the wire-lifting rod, a horizontal sliding hole 33 is arranged in the sliding sleeve 23 corresponding to the positioning insertion block 31, a sliding block 34 matched with the sliding hole 33 is arranged in the sliding hole 33, one end of the sliding block 34 is connected with the positioning insertion block 31 through a connecting rod 35, the other end of the sliding block 34 is provided with a pulling handle 38, an annular plate 36 is fixedly arranged on the inner circumference of the sliding hole 33 at the connecting position of the connecting rod 35 and the sliding block 34, a spring 37 is arranged between the annular plate 36 and the positioning insertion block 31, the spring 37 is arranged on the outer circumference of the connecting rod 35 and always has a tendency of leading the positioning insertion block 31 to enter the positioning insertion hole 32, and the pulling handle 38 between the, so as to realize the linkage of the two wire lifting and clamping devices.
When the wire lifting rod with the structure carries out wire lifting operation, as shown in fig. 7, a wire enters the hook at the bottom of the L-shaped plugging plate 28, then an operator holds the pulling handle 38 to pull away from the sliding sleeve 23, so that the positioning insertion block 31 compresses the spring 37 to withdraw from the positioning insertion hole 32, then the pulling handle 38 and the sliding sleeve 23 move downwards, the L-shaped plugging plate 28 contacts with the shifting block 24 in the downward moving process until the L-shaped plugging plate 28 is turned to the horizontal position to be matched and sealed with the hook, as shown in fig. 10, the shifting block 24 and the L-shaped plugging plate 28 are located at the top position of the positioning avoiding groove 25, the sliding sleeve 23 does not move downwards any more, and the whole structure is in a state of sealing the wire. When the closed state needs to be relieved, the pulling handle 38 is only required to be moved upwards to the position insertion block 31 to be matched with the position insertion hole 32, the whole process is simple and convenient to operate, the sealing effect on the wire is good, and the wire can be guaranteed to be always positioned in the hook in the lifting process so as to ensure the normal operation of insulator replacement operation.
Technical scheme of the utility model not be restricted to the utility model the within range of embodiment. The technical contents not described in detail in the present invention are all known techniques.
Claims (6)
1. The utility model provides an electrified multiplexer utensil of changing insulator of big span tangent tower of superhigh pressure, includes cross arm card and wire lifting mechanism, its characterized in that: the cross arm clamp comprises a first wedge-shaped block (1) and a second wedge-shaped block (2), a groove (3) is arranged at the upper end of the first wedge-shaped block (1), a convex block (4) matched with the groove (3) is arranged at the upper end of the second wedge-shaped block (2), a through hole (5) is arranged in the groove (3) and the convex block (4), a bolt (6) is arranged in the through hole (5), a nut (7) is installed at one end, extending out of the through hole (5), of the bolt (6) in a matched mode, a concave clamping groove (8) is arranged at the position of the connecting position of the bottom ends of the first wedge-shaped block (1) and the second wedge-shaped block (2), the width distance of the concave clamping groove (8) can be adjusted by adjusting the matching degree of the bolt (6) and the nut (7), mounting holes (9) are vertically formed in two sides of the concave clamping groove (8), one mounting hole (9) is located on the first wedge-shaped block (1), and, all be equipped with the wire lifting mechanism in every mounting hole (9), every wire lifting mechanism all includes mechanical lead screw (10), and mechanical lead screw (10) are located mounting hole (9) the bottom of mechanical lead screw (10) articulates there is insulator spindle (11), and the bottom of insulator spindle (11) articulates there is hydraulic lead screw (12), and the articulated pole of carrying wire in bottom of hydraulic lead screw (12) is equipped with the couple on the pole of carrying wire.
2. The tool for replacing the insulator of the ultrahigh-voltage large-span tangent tower with electricity as claimed in claim 1, wherein: the wire lifting rod comprises a first wire lifting rod (13), the bottom end of the first wire lifting rod (13) is fixedly connected with a second wire lifting rod (14) through a screw, a first hook (15) is arranged on the first wire lifting rod (13), and a second hook (16) is arranged on the second wire lifting rod (14).
3. The tool for replacing the insulator of the ultrahigh-voltage large-span tangent tower with electricity as claimed in claim 1, wherein: the surface of the concave clamping groove (8) is provided with an anti-skid pattern surface.
4. The tool for replacing the insulator of the ultrahigh-voltage large-span tangent tower with electricity as claimed in claim 1, wherein: the mechanical lead screw (10) is connected with the insulating rod (11), the insulating rod (11) is connected with the hydraulic lead screw (12), and the hydraulic lead screw (12) is connected with the wire lifting rod through detachable bolt fasteners (17).
5. The tool for replacing the insulator of the ultrahigh-voltage large-span tangent tower with electricity as claimed in claim 1, wherein: the couple includes arc die-pin (18), and the one end fixed connection of arc die-pin (18) has dwang (20) through first pivot (19) articulated on the other end of arc die-pin (18), corresponding to the top position of dwang (20), still is equipped with pin (21) that can contact rather than on the wire-pin, coaxial arrangement has first torsional spring (22) on first pivot (19), and first torsional spring (22) have all the time and make dwang (20) press down pin (21) rather than the trend that contacts.
6. The tool for replacing the insulator of the ultrahigh-voltage large-span tangent tower with electricity as claimed in claim 1, wherein: the wire lifting rod comprises two groups of wire lifting clamping devices which are arranged up and down, each wire lifting clamping device comprises a sliding sleeve (23), the sliding sleeve (23) is positioned on the wire lifting rod and can slide up and down along the sliding sleeve, a hook is fixedly installed on the wire lifting rod at the bottom of the sliding sleeve (23), a shifting block (24) is arranged on the wire lifting rod between the hook and the sliding sleeve (23), a positioning avoiding groove (25) is formed in the sliding sleeve (23) corresponding to the position of the shifting block (24), mounting plates (26) are horizontally arranged on two sides of the positioning avoiding groove (25), an L-shaped plugging plate (28) is installed between the mounting plates (26) through a second rotating shaft (27), a positioning block (29) is fixedly installed on the upper sides of the two mounting plates (26), a second torsion spring (30) is coaxially installed on the second rotating shaft (27), and the second torsion spring (30) always has the tendency of pressing the L-shaped plugging plate (28) to the positioning block (29), when the sliding sleeve (23) descends, the poking block (24) is positioned in the positioning avoiding groove (25), the L-shaped plugging plate (28) can be pushed to rotate and is matched and closed with the hook, a locking device matched with the wire lifting rod is further arranged in the sliding sleeve (23), the locking device comprises a positioning insertion block (31), a positioning insertion hole (32) matched with the positioning insertion block (31) is arranged on the wire lifting rod, a horizontal sliding hole (33) is formed in the sliding sleeve (23) corresponding to the positioning insertion block (31), a sliding block (34) matched with the sliding block is arranged in the sliding hole (33), one end of the sliding block (34) is connected with the positioning insertion block (31) through a connecting rod (35), a pulling handle (38) is installed at the other end of the sliding block (34), and an annular plate (36) is fixedly installed in the inner periphery of the sliding hole (33) at the connecting position of the connecting rod (35) and the sliding block (34), install spring (37) between annular plate (36) and location inserted block (31), spring (37) are located the periphery of connecting rod (35), and have the trend that makes location inserted block (31) get into location jack (32) all the time, and pulling handle (38) fixed connection between above-mentioned two wire promotion clamping device to in the linkage that realizes two wire promotion clamping device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920758503.3U CN209929849U (en) | 2019-05-24 | 2019-05-24 | Tool for live replacement of insulator of ultrahigh-voltage large-span tangent tower |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920758503.3U CN209929849U (en) | 2019-05-24 | 2019-05-24 | Tool for live replacement of insulator of ultrahigh-voltage large-span tangent tower |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209929849U true CN209929849U (en) | 2020-01-10 |
Family
ID=69091953
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920758503.3U Expired - Fee Related CN209929849U (en) | 2019-05-24 | 2019-05-24 | Tool for live replacement of insulator of ultrahigh-voltage large-span tangent tower |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209929849U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110086118A (en) * | 2019-05-24 | 2019-08-02 | 国家电网有限公司 | A kind of Work tool of super-pressure large pitch tangent tower replacing insulator under electrified |
| CN113991524A (en) * | 2021-11-18 | 2022-01-28 | 国网四川省电力公司广安供电公司 | Lifting device for live replacement of insulator wire |
-
2019
- 2019-05-24 CN CN201920758503.3U patent/CN209929849U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110086118A (en) * | 2019-05-24 | 2019-08-02 | 国家电网有限公司 | A kind of Work tool of super-pressure large pitch tangent tower replacing insulator under electrified |
| CN113991524A (en) * | 2021-11-18 | 2022-01-28 | 国网四川省电力公司广安供电公司 | Lifting device for live replacement of insulator wire |
| CN113991524B (en) * | 2021-11-18 | 2024-05-28 | 国网四川省电力公司广安供电公司 | Lifting device for live replacement of insulator wires |
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| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20200110 Termination date: 20200524 |