CN114242355A - Automatic connecting insulator for emergency dance stopping and using method thereof - Google Patents
Automatic connecting insulator for emergency dance stopping and using method thereof Download PDFInfo
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- CN114242355A CN114242355A CN202111671587.5A CN202111671587A CN114242355A CN 114242355 A CN114242355 A CN 114242355A CN 202111671587 A CN202111671587 A CN 202111671587A CN 114242355 A CN114242355 A CN 114242355A
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B17/00—Insulators or insulating bodies characterised by their form
- H01B17/38—Fittings, e.g. caps; Fastenings therefor
- H01B17/40—Cementless fittings
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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
- H02G7/00—Overhead installations of electric lines or cables
- H02G7/14—Arrangements or devices for damping mechanical oscillations of lines, e.g. for reducing production of sound
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Abstract
The invention provides an automatic connecting insulator for emergency stop dance and a using method thereof, and belongs to the technical field of electric power operation and maintenance. The automatic connecting insulator comprises an insulator body, a plate-shaped female buckle, a connecting rope, a conical male buckle and a self-locking mechanism; the plate-shaped female buckle is vertically and fixedly connected with the top of the insulator body, and is provided with a connecting hole in a hollow manner; the conical sub-buckle is in a conical structure, a sub-buckle pull ring is arranged at the tip end of the conical sub-buckle, and the diameter of the conical bottom is slightly smaller than the inner diameter of the connecting hole; one end of the connecting rope is fixedly connected with the plate-shaped female buckle, and the other end of the connecting rope is fixedly connected with the conical bottom of the conical male buckle; the self-locking mechanism is arranged beside the connecting hole and is used for enabling the conical sub-buckle to only pass through the connecting hole in one direction. The using method can be used for quickly installing the automatic connecting insulator under the condition that no person climbs the tower and goes on the line. The invention pulls and anchors the conductor of the power transmission line after galloping to the ground, can realize the emergency galloping inhibition of the power transmission line, and the conductor after being pulled and anchored still has short-term live-line operation conditions.
Description
Technical Field
The invention belongs to the technical field of electric power operation and maintenance, and particularly relates to an automatic connecting insulator for emergency dance stopping and a using method thereof.
Background
In winter, the transmission line can form an irregular conductor section due to ice coating, self-excitation waving can occur under the action of wind, the vibration frequency is usually 0.1-3 Hz, and the amplitude is about 5-300 times of the diameter of the conductor. The conductor galloping can cause damage to pole tower conductor hardware and parts, and further causes frequent tripping and power failure of a circuit, and brings great hidden danger to safe operation of a power transmission line. Meanwhile, the occurrence of the galloping accident can cause accidents of line breakage, cross arm damage, tower collapse and the like which are difficult to recover directly besides tripping caused by electric insulation breakdown of the line, thereby causing great threat to the safe operation of the power transmission line and the power grid.
After the transmission line has a galloping disaster, no effective emergency treatment measure for inhibiting the line galloping exists at present. Aiming at the phenomenon of galloping of the power transmission line, the existing research provides an emergency galloping stopping method based on the guy cable, and during the temporary power failure of the galloping of the power transmission line, the guy cable is adopted to draw and anchor the galloped power transmission line conductor to the ground, so that the emergency galloping inhibition of the power transmission line can be effectively realized.
For example, patent document CN110137889A proposes a novel damping type anti-galloping device, which comprises a steel wire rope stay cable, a hanger spring damper and a gravity type concrete foundation, wherein one end of the hanger spring damper is installed on the gravity type concrete foundation, and the other end of the hanger spring damper is installed at the lowest sag point of the sag of the wire or on the frame of a spacer fixed on the wire through the steel wire rope stay cable. The invention can effectively prevent the conductor from waving, and particularly inhibit the conductor from waving up and down.
Also, for example, patent document CN111478261A proposes a device for suppressing galloping of an overhead transmission line, which includes a wire, a support rod, a pulley assembly, a weight block, a composite insulator, a main insulating rope and a bearing insulating rope, wherein the main insulating rope is wound around the wire, one end of the main insulating rope is connected to the bearing insulating rope through the composite insulator, the other end of the main insulating rope is connected to a steel wire rope through the composite insulator, and the lower end of the steel wire rope is fixed to the ground through a ground anchor; the bearing insulating rope is connected with the mating block after bypassing the pulley assembly. The invention can restrain the line from waving by using a pulling mode.
However, the above invention needs to be installed before the conductor galloping occurs, and the conductor cannot be on-line operated after galloping, so the above invention cannot perform emergency treatment for galloping situations.
Disclosure of Invention
The invention aims to solve the technical problem of providing an automatic connecting insulator for emergency dance stopping and a using method thereof aiming at the defects of the prior art.
In order to solve the technical problems, the technical scheme adopted by the invention is as follows:
an automatic connecting insulator for emergency dance stopping comprises an insulator body, wherein a bottom hanging ring is fixedly arranged at the bottom of the insulator body; the self-locking device also comprises a plate-shaped female buckle, a connecting rope, a conical male buckle and a self-locking mechanism;
the plate-shaped female buckle is vertically and fixedly connected with the top of the insulator body, and is provided with a connecting hole in a hollow manner;
the conical sub-buckle is in a conical structure, a sub-buckle pull ring is arranged at the tip end of the conical sub-buckle, and the diameter of the conical bottom is slightly smaller than the inner diameter of the connecting hole;
one end of the connecting rope is fixedly connected with the plate-shaped female buckle, and the other end of the connecting rope is fixedly connected with the conical bottom of the conical male buckle;
the self-locking mechanism is arranged beside the connecting hole and is used for enabling the conical sub-buckle to only pass through the connecting hole in one direction.
Further, the self-locking mechanism comprises two baffles;
the baffle plates are arranged at the bottom of the plate-shaped female buckle and symmetrically arranged at two sides of the connecting hole, and the distance between the two baffle plates is smaller than the diameter of the conical bottom of the conical male buckle;
the baffle passes through the pivot with the slabby box is articulated, the cover is equipped with the torsional spring on the pivot, the torsional spring is used for making the baffle with the slabby box laminating.
Furthermore, the distance between the two baffles is slightly larger than the outer diameter of the connecting rope.
Furthermore, a top end hanging ring is fixedly arranged at the top end of the plate-shaped female buckle.
Furthermore, a sub-buckle pull ring is arranged at the tip end of the conical sub-buckle.
A use method of an automatic connecting insulator for emergency stop dance comprises the following steps:
preparing an insulating inhaul cable, an insulator traction rope, a sub-buckle traction rope and a steel wire rope;
the two ends of the insulator traction rope are combined into one after penetrating through the top end hanging ring, the two ends of the insulator traction rope are combined into one after penetrating through the sub buckle pull ring, and the steel wire rope is connected with the bottom hanging ring;
hanging the insulated inhaul cable on a conducting wire of a power transmission line, and connecting a pulley at the tail end of the insulated inhaul cable;
the sub-buckle traction rope is pulled to cross a lead by using the insulating inhaul cable, and then the sub-buckle traction rope penetrates through the connecting hole from top to bottom;
after the insulator traction rope passes through the pulley, the insulating inhaul cable is gradually tightened, so that the pulley rises to a proper height; tightening the insulator traction rope to enable the insulator body to rise to a proper height; tightening the sub-buckle traction rope to enable the conical sub-buckle to penetrate through the connecting hole;
and sequentially recovering the insulator haulage rope, the insulating inhaul cable and the sub-buckle haulage rope.
Further, the steel wire rope is used for anchoring on the ground to achieve galloping inhibition of the wire.
In the prior art, the suppression of the galloping of the power transmission line is mostly precautionary measures, such as installing anti-galloping devices such as wire clamp rotary spacers, interphase spacers, double-pendulum anti-galloping devices and detuning pendulums on the power transmission line conductor in advance. However, the power transmission line galloping disaster is sporadic and cannot be completely prevented, and for the power transmission line which is galloping, other emergency treatment measures need to be taken because the galloping prevention device cannot be installed immediately.
One emergency measure currently used on site is to fix the wires in the important line re-galloping section to the ground by using ropes, ground anchors or anchor wires, control the range of motion of the wires, and reduce or eliminate the influence of galloping.
In the prior art, anti-galloping methods for fixing the transmission line conductor with the ground have been proposed, such as phase-to-ground spacers proposed in patent documents CN103414135A, CN106655050A and the like, damping-type anti-galloping devices proposed in patent document CN110137889A and the like. However, these anti-galloping devices also need to be installed in advance, and cannot be installed when galloping occurs.
If the emergency power supply is still needed for the wire after the guy cable is used for traction and anchoring, the guy cable for emergency traction of the wire must be connected with an insulator in series for insulation and separation, and then the safety can be ensured. The emergency handling method for the line galloping disaster based on the inhaul cable can realize safe and quick response to the line galloping and avoid power grid damage caused by long-time galloping, but the method has the technical problem of automatic connection of the insulator at present, and because manual tower climbing on-line operation cannot be carried out according to safety regulations in the galloping state of the power transmission line, how to lift the insulator to the high altitude and realize unmanned on-line operation connection is a key problem to be solved urgently.
If the insulator cannot be lifted to the upper line by a tower, in the traditional construction, in order to lift the insulator to the high altitude, a constructor can think or adopt a method that the insulator is lifted to the corresponding height by directly adopting a guy cable and using a wire as a fulcrum. But because the insulator is heavier, cause the cable and wire frictional force great, there is the wire wearing and tearing risk. However, even if the insulator is lifted by this method, the insulator and the wire cannot be firmly connected with each other easily.
Under the condition, the inventor designs an automatic connecting device at the top end of the insulator, can realize the automatic connection of the insulator and a wire under the condition that no person climbs a tower and gets on the line, and simultaneously provides a corresponding construction method.
Compared with the prior art, the invention has the following beneficial effects:
when the insulator body is installed, the connecting rope is pulled by the rope to cross the wire and then passes through the connecting hole, the arranged self-locking mechanism locks the conical sub-buckle at the tail end of the connecting rope, so that the connecting rope cannot fall off, and the insulator body is quickly connected with the wire.
Under the condition that no person climbs a tower and goes on the line, the insulator body is lifted by the aid of the insulating inhaul cable crossing the lead, the insulator body is lifted by the aid of the insulator traction rope crossing the pulley at the tail end of the insulating inhaul cable, and the insulator is hung on the lead by the aid of the conical sub-buckle traction rope crossing the lead and penetrating through the connecting hole. After the insulator body is hung, the anchoring steel wire rope can realize emergency dance stopping of the wire. The insulating inhaul cable, the insulator traction rope and the sub-buckle traction rope can be drawn out and then recovered after the insulator is hung, and the safety of the wire in emergency power supply is not affected. The insulator body is lifted through the pulley, and does not rub with a wire in the lifting process, so that the wire can be prevented from being damaged due to severe friction of a rope.
According to the invention, the wire of the power transmission line after galloping is drawn by the steel wire rope and anchored to the ground, so that the emergency galloping inhibition of the power transmission line can be realized, and the power grid damage caused by conductor galloping is avoided; the insulator is connected in series in the steel wire rope, so that the drawn and anchored wire still has short-term live-line operation conditions, and the power supply requirement under special conditions is met; the insulator can be quickly installed under the condition that no person climbs the tower and goes on the line, can realize safe and quick response to line galloping, can perform quick emergency treatment when a conductor galloping disaster happens, and avoids larger harm caused by long-time galloping of the conductor.
Drawings
The present invention will be described in further detail with reference to the accompanying drawings.
FIG. 1: the structure of embodiment 1 of the invention is schematically shown;
FIG. 2: embodiment 1 of the invention is a structural schematic diagram of a plate-shaped female buckle;
FIG. 3: the embodiment 1 of the invention is a schematic structural diagram of a self-locking mechanism;
FIG. 4: one of the schematic diagrams of embodiment 2 of the present invention;
FIG. 5: a second schematic diagram of embodiment 2 of the present invention;
FIG. 6: a third schematic diagram of embodiment 2 of the present invention;
FIG. 7: the fourth schematic diagram of embodiment 2 of the present invention;
FIG. 8: fifth schematic diagram of embodiment 2 of the present invention;
FIG. 9: sixth of the schematic view of embodiment 2 of the present invention;
wherein: 1-insulator body, 11-bottom suspension loop, 2-plate-shaped female buckle, 21-top suspension loop, 22-connecting hole, 3-connecting rope, 4-conical male buckle, 41-male buckle pull ring, 5-self-locking mechanism, 51-baffle, 52-shaft pin, 53-torsion spring, 61-insulating inhaul cable, 62-insulator hauling rope, 63-male buckle hauling rope, 64-steel wire rope, 65-pulley and 7-wire.
Detailed Description
For a better understanding of the invention, the following description is given in conjunction with the examples and the accompanying drawings, but the invention is not limited to the examples. In the following description, numerous specific details are set forth in order to provide a more thorough understanding of the present invention. It will be apparent, however, to one skilled in the art, that the present invention may be practiced without one or more of these specific details.
It is noted that in the description of the present invention, the terms "top and bottom", "up and down", etc., indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience in describing the present invention and simplifying the description, but do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific manner, and thus should not be construed as limiting the present invention.
Referring to fig. 2 to 5, the automatic connecting insulator includes an insulator body 1, a plate-shaped female buckle 2, a connecting cord 3, a conical male buckle 4, and a self-locking mechanism 5.
The insulator body 1 is a suspension insulator and is installed in a suspension manner; the fixed bottom link 11 that is provided with in bottom of insulator body 1 is carrying out the emergent dance of tractive to the transmission line wire, and the wire rope that carries out the tractive is connected with bottom link 11.
The plate-shaped female buckle 2 is of a plate-shaped structure and is vertically and fixedly connected with the top of the insulator body 1. The top of the plate-shaped female buckle 2 is fixedly provided with a top end hanging ring 21. When the insulator body 1 is mounted, it can be lifted by the top end hanging ring 21.
The connecting rope 3 is used for crossing a transmission line wire to be pulled and hanging the insulator body 1 on the wire; one end of the connecting rope 3 is fixedly connected with the plate-shaped female buckle 2, and the other end is fixedly connected with the conical male buckle 4.
The conical sub-buckle 4 is of a conical structure, a sub-buckle pull ring 41 is fixedly arranged at the tip end of the conical sub-buckle, the connecting rope 3 is connected with the central position of the conical bottom of the conical sub-buckle 4, and the diameter of the conical bottom of the conical sub-buckle 4 is larger than the outer diameter of the connecting rope 3. Meanwhile, the plate-shaped female buckle 2 is provided with a circular connecting hole 22 for the conical male buckle 4 to pass through, and the inner diameter of the connecting hole 22 is slightly larger than the outer diameter of the conical bottom of the conical male buckle 4.
In the working process of the embodiment, the cone-shaped sub-buckle 4 pulls the connecting rope 3 to cross the lead and then to pass through the connecting hole 22, in order to prevent the insulator body 1 from falling off, the cone-shaped sub-buckle 4 needs to pass through the connecting hole 22 only in one direction, measures need to be taken to prevent the cone-shaped sub-buckle 4 from reversely falling out of the connecting hole 22, and therefore the self-locking mechanism 5 is further arranged beside the connecting hole 22.
The self-locking mechanism 5 of the embodiment is arranged at the bottom of the plate-shaped female buckle 2 and comprises two baffle plates 51, the baffle plates 51 are symmetrically arranged at two sides of the connecting hole 22, the length of each baffle plate 51 is greater than the diameter of the connecting hole 22, and the distance between the two baffle plates 51 is slightly greater than the outer diameter of the connecting rope 3. One side of the baffle plate 51, which is far away from the connecting hole 22, is hinged with the plate-shaped female buckle 2 through the shaft pin 52, and the baffle plate 51 can rotate along the shaft pin 52, so that the connecting hole 22 can be completely opened or semi-closed, the connecting hole 22 in a completely opened state can enable the conical male buckle 4 to pass through, and the connecting hole 22 in a semi-closed state can not enable the conical male buckle 4 to pass through reversely, but does not influence the movement of the connecting rope 3. Meanwhile, the shaft pin 52 is further sleeved with a torsion spring 53, and the torsion spring 53 is used for applying a torsion force to the baffle 51, so that the baffle is automatically attached to the plate-shaped female buckle 2 in a natural state, and the connecting hole 22 is semi-closed.
When the cone-shaped sub-button 4 of the embodiment passes through the connecting hole 22 from top to bottom, the cone-shaped sub-button 4 will automatically make the baffle 51 spring open, and the passing of the cone-shaped sub-button 4 is not affected. After the cone-shaped sub-buckle 4 passes through the connecting hole 22, the baffle plate 51 automatically bounces to enable the connecting hole 22 to be in a semi-closed state, and the cone-shaped sub-buckle 4 is prevented from reversely falling out of the connecting hole 22.
The space that can supply to connect the activity of rope 3 is reserved between two baffles 51, therefore baffle 51 can laminate with platelike box 2 completely, can improve the reliability that embodiment and wire are connected on the one hand, and on the other hand can avoid connecting under the galloping condition rope 3 and baffle 51's edge friction and impaired.
Example 2: the embodiment is used for providing a using method of an automatic connecting insulator for emergency dance stopping.
Referring to fig. 4-7, the method of use includes the steps of:
in step S1, three cables, i.e., the insulated cable 61, the insulator pulling cable 62, and the sub-buckle pulling cable 63, and one wire rope 64 are prepared.
The insulated inhaul cable 61 is used for crossing the transmission line conducting wire 7 to carry out traction construction; the insulator traction rope 62 is connected with the top end hanging ring 21 and used for lifting the insulator body 1; the sub-buckle pulling rope 63 is connected with the sub-buckle pulling ring 41 and is used for pulling the conical sub-buckle 4. The wire rope 64 is used for realizing the anti-galloping traction of the lead 7.
Step S2, as shown in fig. 4, the insulator pulling rope 62 is threaded through the top end hanging ring 21 and then the two ends are combined into one, the sub buckle pulling rope 63 is threaded through the sub buckle pulling ring 41 and then the two ends are combined into one, and the steel wire rope 64 is connected with the bottom hanging ring 11.
In step S3, as shown in fig. 5, the insulation cable 61 is hung on the power transmission line conductor 7, and the pulley 65 is connected to the tail end of the insulation cable 61.
This step can be made to span the wire 7 by a cast or unmanned aerial vehicle.
The transmission line adopts the split conductors with different split numbers along with the improvement of the voltage grade, the split conductors are more easy to wave, the conductor illustrated in the figure is a six-split conductor, and the invention is also applicable to other types of transmission line conductors.
In step S4, as shown in fig. 6, the sub-buckle pulling string 63 is pulled across the lead wire 7 by the insulating pulling string 61, and then the sub-buckle pulling string 63 is passed through the connecting hole 22 from the top down.
Step S5, as shown in fig. 7 and 8, after the insulator pulling rope 62 passes through the pulley 65, the insulation pulling rope 61 is gradually tightened to raise the pulley 65 to a proper height; tightening the insulator traction rope 62 to lift the insulator body 1 to a proper height; the pulling rope 63 of the sub-button is tightened to lead the conical sub-button 4 to pass through the connecting hole 22.
In step S6, as shown in fig. 9, the insulator pulling rope 62, the insulating pulling rope 61, and the sub buckle pulling rope 63 are sequentially recovered.
The upper end of the insulator body 1 is connected with the wire 7 through the connecting rope 3, and finally the steel wire rope 64 is tightened and anchored on the ground, so that the emergency dance stopping of the wire 7 can be realized.
Finally, the above embodiments are only used for illustrating the technical solutions of the present invention and not for limiting, and other modifications or equivalent substitutions made by the technical solutions of the present invention by those of ordinary skill in the art should be covered within the scope of the claims of the present invention as long as they do not depart from the spirit and scope of the technical solutions of the present invention.
Claims (7)
1. The utility model provides an automatic connection insulator for emergent ending dance, includes the insulator body, the fixed bottom link that is provided with in bottom of insulator body, its characterized in that: the self-locking device also comprises a plate-shaped female buckle, a connecting rope, a conical male buckle and a self-locking mechanism;
the plate-shaped female buckle is vertically and fixedly connected with the top of the insulator body, and is provided with a connecting hole in a hollow manner;
the conical sub-buckle is in a conical structure, a sub-buckle pull ring is arranged at the tip end of the conical sub-buckle, and the diameter of the conical bottom is slightly smaller than the inner diameter of the connecting hole;
one end of the connecting rope is fixedly connected with the plate-shaped female buckle, and the other end of the connecting rope is fixedly connected with the conical bottom of the conical male buckle;
the self-locking mechanism is arranged beside the connecting hole and is used for enabling the conical sub-buckle to only pass through the connecting hole in one direction.
2. The automatic connecting insulator for emergency stop dancing according to claim 1, wherein: the self-locking mechanism comprises two baffles;
the baffle plates are arranged at the bottom of the plate-shaped female buckle and symmetrically arranged at two sides of the connecting hole, and the distance between the two baffle plates is smaller than the diameter of the conical bottom of the conical male buckle;
the baffle passes through the pivot with the slabby box is articulated, the cover is equipped with the torsional spring on the pivot, the torsional spring is used for making the baffle with the slabby box laminating.
3. The automatic connecting insulator for emergency stop dancing according to claim 2, wherein: the distance between the two baffles is slightly larger than the outer diameter of the connecting rope.
4. The automatic connecting insulator for emergency stop dancing according to claim 3, wherein: and a top end hanging ring is fixedly arranged at the top end of the plate-shaped female buckle.
5. The automatic connecting insulator for emergency stop dancing according to claim 4, wherein: the tip of the conical sub button is provided with a sub button pull ring.
6. Use of an automatic connection insulator for emergency stop dancing according to any of claims 1 to 5, characterised in that: the method comprises the following steps:
preparing an insulating inhaul cable, an insulator traction rope, a sub-buckle traction rope and a steel wire rope;
the two ends of the insulator traction rope are combined into one after penetrating through the top end hanging ring, the two ends of the insulator traction rope are combined into one after penetrating through the sub buckle pull ring, and the steel wire rope is connected with the bottom hanging ring;
hanging the insulated inhaul cable on a conducting wire of a power transmission line, and connecting a pulley at the tail end of the insulated inhaul cable;
the sub-buckle traction rope is pulled to cross a lead by using the insulating inhaul cable, and then the sub-buckle traction rope penetrates through the connecting hole from top to bottom;
after the insulator traction rope passes through the pulley, the insulating inhaul cable is gradually tightened, so that the pulley rises to a proper height; tightening the insulator traction rope to enable the insulator body to rise to a proper height; tightening the sub-buckle traction rope to enable the conical sub-buckle to penetrate through the connecting hole;
and sequentially recovering the insulator haulage rope, the insulating inhaul cable and the sub-buckle haulage rope.
7. The use method of the automatic connecting insulator for emergency stop dancing according to claim 6, is characterized in that: the steel wire rope is used for anchoring on the ground to restrain galloping of the lead.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111671587.5A CN114242355B (en) | 2021-12-31 | 2021-12-31 | Automatic connection insulator for emergency anti-galloping and use method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111671587.5A CN114242355B (en) | 2021-12-31 | 2021-12-31 | Automatic connection insulator for emergency anti-galloping and use method thereof |
Publications (2)
| Publication Number | Publication Date |
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| CN114242355A true CN114242355A (en) | 2022-03-25 |
| CN114242355B CN114242355B (en) | 2024-01-26 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202111671587.5A Active CN114242355B (en) | 2021-12-31 | 2021-12-31 | Automatic connection insulator for emergency anti-galloping and use method thereof |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114825232A (en) * | 2022-04-29 | 2022-07-29 | 国网山东省电力公司招远市供电公司 | Emergent controlling means that ends dance of transmission line |
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|---|---|---|---|---|
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| RU2109185C1 (en) * | 1997-12-03 | 1998-04-20 | Закрытое акционерное общество "Энергет и Ко" | Flexible locking sealing device |
| AU2011202801A1 (en) * | 2010-06-13 | 2012-01-12 | Bioc Industries Limited | Support Fitting |
| CN202855205U (en) * | 2012-11-06 | 2013-04-03 | 上海答案包装制品有限公司 | Self-locking hang tag |
| CN103414135A (en) * | 2013-07-23 | 2013-11-27 | 国家电网公司 | Rigid phase-ground conductor spacer preventing gallop |
| CN209265847U (en) * | 2019-02-12 | 2019-08-16 | 福建文扬纺织科技有限公司 | It is a kind of protect drop hang grain |
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2021
- 2021-12-31 CN CN202111671587.5A patent/CN114242355B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1411820A (en) * | 1972-10-12 | 1975-10-29 | Vg Trest Organizatsii I Ratsio | Transmission line systems |
| RU2109185C1 (en) * | 1997-12-03 | 1998-04-20 | Закрытое акционерное общество "Энергет и Ко" | Flexible locking sealing device |
| AU2011202801A1 (en) * | 2010-06-13 | 2012-01-12 | Bioc Industries Limited | Support Fitting |
| CN202855205U (en) * | 2012-11-06 | 2013-04-03 | 上海答案包装制品有限公司 | Self-locking hang tag |
| CN103414135A (en) * | 2013-07-23 | 2013-11-27 | 国家电网公司 | Rigid phase-ground conductor spacer preventing gallop |
| CN209265847U (en) * | 2019-02-12 | 2019-08-16 | 福建文扬纺织科技有限公司 | It is a kind of protect drop hang grain |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114825232A (en) * | 2022-04-29 | 2022-07-29 | 国网山东省电力公司招远市供电公司 | Emergent controlling means that ends dance of transmission line |
| CN114825232B (en) * | 2022-04-29 | 2024-02-09 | 国网山东省电力公司招远市供电公司 | Emergency anti-galloping control device for power transmission line |
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