CN111952885A - Duplex insulator string assembling and disassembling device - Google Patents
Duplex insulator string assembling and disassembling device Download PDFInfo
- Publication number
- CN111952885A CN111952885A CN202011005203.1A CN202011005203A CN111952885A CN 111952885 A CN111952885 A CN 111952885A CN 202011005203 A CN202011005203 A CN 202011005203A CN 111952885 A CN111952885 A CN 111952885A
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- Prior art keywords
- tower head
- insulator string
- force
- screw mechanism
- fitting
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02G—INSTALLATION OF ELECTRIC CABLES OR LINES, OR OF COMBINED OPTICAL AND ELECTRIC CABLES OR LINES
- H02G1/00—Methods or apparatus specially adapted for installing, maintaining, repairing or dismantling electric cables or lines
- H02G1/02—Methods or apparatus specially adapted for installing, maintaining, repairing or dismantling electric cables or lines for overhead lines or cables
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
- B25B—TOOLS OR BENCH DEVICES NOT OTHERWISE PROVIDED FOR, FOR FASTENING, CONNECTING, DISENGAGING OR HOLDING
- B25B27/00—Hand tools, specially adapted for fitting together or separating parts or objects whether or not involving some deformation, not otherwise provided for
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Electric Cable Installation (AREA)
Abstract
The invention relates to the field of power transmission line construction, and discloses a duplex insulator string assembling and disassembling device which comprises a tower head hardware fitting for fixing an insulator string and a clamping seat, wherein the clamping seat is provided with a clamping cavity for fixing the insulator string, the clamping seat is connected with a first lead screw mechanism, the first lead screw mechanism is hinged with a force application beam, the force application beam is hinged with the tower head hardware fitting, and the force application beam is in lever fit with the side wall of the tower head hardware fitting. The mounting end of the insulator string to be newly replaced can be effectively close to the mounting point of the tower head hardware fitting, and the insulator string to be newly replaced can be conveniently mounted.
Description
Technical Field
The invention relates to the field of power transmission line construction, in particular to a duplex insulator string assembling and disassembling device.
Background
At present, insulators used by a power transmission line are mostly composite insulators, and the composite insulators are exposed in the field for a long time and can be damaged under the influence of temperature, environment and the like. Therefore, the composite insulator needs to be replaced, and the replacement of the composite insulator currently adopts a calabash and a chain to perform force conversion so as to achieve the purpose of replacement. When the composite insulators in the power transmission line are double strings, when one string of the composite insulators is removed and replaced, the tower head hardware fitting is inclined and difficult to reset, so that a newly replaced load insulator string cannot be close to a mounting point of the tower head hardware fitting and cannot be smoothly installed.
The present application is made in view of this feature.
Content of application
The invention aims to provide a duplex insulator string assembling and disassembling device which can effectively enable the installation end of a newly replaced insulator string to be close to the installation point of a tower head hardware fitting and is convenient for installation of the newly replaced insulator string.
The embodiment of the application is realized by the following technical scheme:
the utility model provides a duplex insulator cluster loading and unloading device, is including the tower head gold utensil that is used for fixed insulator chain, still includes the grip slipper, and the grip slipper opens the centre gripping chamber that has fixed insulator chain, and the grip slipper even has first screw mechanism, and first screw mechanism articulates there is the application of force roof beam, and the application of force roof beam is articulated with the tower head gold utensil, and application of force roof beam and tower head gold utensil lateral wall lever fit.
Furthermore, the clamping seat is connected with a second screw rod mechanism, the second screw rod mechanism and the first screw rod mechanism are arranged on two sides of the clamping cavity relatively, one side, away from the tower head, of the tower head hardware fitting is provided with a plurality of hinge holes, the second screw rod mechanism is hinged with the hinge holes, and the hinge points are located on one side, close to the force application beam, of the center line of the tower head hardware fitting.
Furthermore, the first screw rod mechanism and the second screw rod mechanism are respectively sleeved with a first force applying arm and a second force applying arm which are used for enabling the screw rods to rotate.
Furthermore, a plurality of hinge holes are symmetrically arranged on two sides of the center line of the tower head hardware fitting.
Further, the clamping base side wall is hinged to the clamping cavity and provided with a clamping cover for opening the clamping cavity, and one end, far away from the hinged end, of the clamping cover is detachably connected with the clamping base.
Furthermore, the tower head hardware fitting is an isosceles triangle plate with uniform thickness, the vertex of the tower head hardware fitting is hinged with the tower head, and two angles of the bottom edge of the tower head hardware fitting are respectively used for installing two insulator strings.
Furthermore, one end of the force application beam, which is close to the tower head hardware fitting, is provided with an insertion groove matched with the thickness of the tower head hardware fitting.
Further, the force application beam is hinged with the vertex of the tower head hardware fitting.
Furthermore, the vertex of the tower head hardware fitting is hinged to the tower head through a hinge shaft, one end, close to the tower head hardware fitting, of the force application beam is provided with a hook portion, and the hook portion is hung on the bottom of the hinge shaft.
Furthermore, locking mechanisms are respectively arranged at the hinged position of the first screw rod mechanism and the force application beam and the hinged position of the second screw rod mechanism and the tower head hardware fitting.
The duplex insulator string loading and unloading device provided by the invention has the beneficial effects that:
(1) through setting up the grip slipper, the tip centre gripping of the insulator chain that will newly change is fixed, through setting up first screw mechanism and application of force roof beam, utilize first screw mechanism to draw close the grip slipper (the tip of newly changing insulator chain promptly) and be close to application of force roof beam (be close to the tower head gold utensil promptly), in-process application of force roof beam passes through lever principle, lateral wall at the tower head gold utensil is exerted pressure to the tower head gold utensil, prevent the tower head gold utensil from further rotating, and the reverse pulling tower head gold utensil of gravity with the help of insulator chain rotates to a certain extent, pull back balanced state with the tower head gold utensil, finally make the tip of newly changing insulator chain and the installation department contact of tower head gold utensil, make things convenient for the user to be connected the insulator chain that newly changes with the tower head gold utensil.
(2) Through setting up second screw mechanism, and make second screw mechanism and first screw mechanism establish the both sides in centre gripping chamber respectively to distribute the atress of grip slipper to first screw mechanism and second screw mechanism on, avoid radial too big lead to the lead screw bending and rupture, thereby make whole device be convenient for more the operation, mechanical properties is more stable. The hinge point through setting up second screw mechanism and hinge hole is located the one side that the tower head gold utensil central line is close to the application of force roof beam, makes the atress condition more reasonable, utilizes the pressure of application of force roof beam and second screw mechanism's pulling force to stimulate the gyration of tower head gold utensil simultaneously, prevents to provide antiport's component.
(3) The first force applying arm and the second force applying arm are arranged, so that the force arms are prolonged, and the rotation control of the screw rod is facilitated.
(4) Through setting up the clamping cover, open the clamping cover and can make the centre gripping chamber open, conveniently put into insulator chain, will press from both sides the clamping cover lid and close the back, the inner wall that presss from both sides the clamping cover compresses tightly insulator chain to make insulator chain fixed, press from both sides clamping cover one end through setting up and articulate, compress tightly the clamping cover with forming the lever, utilize lever principle to make things convenient for the application of force, can dismantle the connection through setting up the clamping cover other end, conveniently open and close with the lid.
(5) Through setting up the inserting groove, make the application of force roof beam peg graft with the lateral wall of tower head gold utensil to it is more convenient to make application of force roof beam and tower head gold utensil lateral wall contact department application of force, and can not produce the planar separation in perpendicular to tower head gold utensil place, effectively prevents that application of force roof beam from buckling or splitting.
(6) Through setting up articulated shaft and couple portion, utilize the mode of closure to realize articulated, easy to assemble and dismantlement.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings that are required to be used in the embodiments will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present application and therefore should not be considered as limiting the scope, and for those skilled in the art, other related drawings can be obtained from the drawings without inventive effort.
Fig. 1 is a schematic view of a duplex insulator string handling apparatus according to an embodiment of the present invention;
fig. 2 is a schematic top view of a force application beam and a tower head fitting of the duplex insulator string handling apparatus according to the embodiment of the present invention;
fig. 3 is a cross-sectional view of a clamping seat of a duplex insulator string handling apparatus according to an embodiment of the present invention.
Icon: 10-tower head hardware; 101-hinge hole; 20-a clamping seat; 21-a clamping cavity; 22-a clamping cover; 30-a force application beam; 31-a plug groove; 32-a hook portion; 33-a locking mechanism; 40-a first force application arm; 41-second force application arm.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present application clearer, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are some embodiments of the present application, but not all embodiments. The components of the embodiments of the present application, generally described and illustrated in the figures herein, can be arranged and designed in a wide variety of different configurations.
Thus, the following detailed description of the embodiments of the present application, presented in the accompanying drawings, is not intended to limit the scope of the claimed application, but is merely representative of selected embodiments of the application. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.
It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, it need not be further defined and explained in subsequent figures.
In the description of the present application, it should be noted that if the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. are used for indicating the orientation or positional relationship based on the orientation or positional relationship shown in the drawings or the orientation or positional relationship which is usually placed when the product of the application is used, the description is only for convenience and simplicity, and the indication or suggestion that the referred device or element must have a specific orientation, be constructed in a specific orientation and be operated, and thus, should not be construed as limiting the present application.
In the description of the present application, it should also be noted that, unless otherwise explicitly stated or limited, the terms "disposed," "mounted," "connected," and "connected" should be interpreted broadly, e.g., as being fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present application can be understood in a specific case by those of ordinary skill in the art.
Examples
Referring to fig. 1 to 3, the present embodiment provides a duplex insulator string handling device, which includes a tower head hardware 10 for fixing insulator strings, wherein one end of the tower head hardware 10 is hinged to a tower head, and the other end is hinged to two symmetrically arranged insulator strings, and the two insulator strings are symmetrically arranged, so that the tower head hardware 10 is always kept in a stress balance. The clamping device further comprises a clamping seat 20, the clamping seat 20 is provided with a clamping cavity 21 for fixing the insulator string so as to clamp and fix the end part of the newly replaced insulator string, the clamping seat 20 is connected with a first lead screw mechanism, the first lead screw mechanism is hinged with a force application beam 30, the force application beam 30 is hinged with the tower head hardware fitting 10, and the force application beam 30 is in lever fit with the side wall of the tower head hardware fitting 10. Because the two insulator strings are symmetrically arranged on the tower head hardware fitting 10, after one insulator string is detached, the tower head hardware fitting 10 is inclined and rotated due to unbalanced stress, and at the moment, when a new insulator string is to be installed, the distance between the end part of the insulator string and the installation part of the tower head hardware fitting 10 is enlarged due to the inclination and the rotation of the tower head hardware fitting 10, so that the end part of the new insulator string is difficult to be close to the installation part of the tower head hardware fitting 10. Through setting up grip slipper 20, the tip centre gripping of the insulator string that will newly change is fixed, through setting up first screw mechanism and application of force roof beam 30, utilize first screw mechanism to draw grip slipper 20 (the tip of the insulator string that will newly change promptly) to be close to application of force roof beam 30 (being close to tower head gold utensil 10 promptly), in-process application of force roof beam 30 passes through lever principle, exert pressure to tower head gold utensil 10 at the lateral wall of tower head gold utensil 10, prevent that tower head gold utensil 10 from further rotating, and pull tower head gold utensil 10 to a certain extent with the help of the gravity reverse pulling of insulator string and rotate, pull back balanced state with tower head gold utensil 10, finally make the tip of the insulator string that newly changes contact with the installation department of tower head gold utensil 10, make things convenient for the user to be connected the insulator string that newly changes with tower head gold utensil 10.
In order to prevent that the radial force that first screw mechanism received from leading to first screw mechanism to buckle, make the mechanical properties of whole device more stable, grip slipper 20 even has second screw mechanism, and second screw mechanism and first screw mechanism set up in centre gripping chamber 21 both sides relatively, one side that tower head gold utensil 10 kept away from the tower head is opened has a plurality of hinge holes 101, second screw mechanism is articulated with hinge hole 101, and the hinge point is located one side that the central line of tower head gold utensil 10 is close to application of force roof beam 30. Through setting up second screw mechanism, and make second screw mechanism and first screw mechanism establish the both sides of centre gripping chamber 21 respectively to distribute the atress of grip slipper 20 to first screw mechanism and second screw mechanism on, avoid radial force too big lead to the lead screw bending and rupture, thereby make whole device be convenient for more the operation, mechanical properties is more stable. The hinge point of the second screw rod mechanism and the hinge hole 101 is located on one side, close to the force application beam 30, of the center line of the tower head hardware fitting 10, so that the stress condition is more reasonable, the pressure of the force application beam 30 and the pulling force of the second screw rod mechanism are utilized to pull the tower head hardware fitting 10 to rotate at the same time, and the component force of the reverse rotation is prevented from being provided.
It should be noted that the first screw mechanism and the second screw mechanism are common screw mechanisms in the prior art, that is, the first screw mechanism and the second screw mechanism include a screw, the screw is in threaded connection with a screw hole on the clamping seat 20, and an end of the screw is provided with a hinged seat connected with an external environment through the hinged seat.
In order to facilitate the rotation of the screw rods of the first screw rod mechanism and the second screw rod mechanism, the first screw rod mechanism and the second screw rod mechanism are respectively sleeved with a first force applying arm 40 and a second force applying arm 41 for enabling the screw rods to rotate. The first force applying arm 40 and the second force applying arm 41 are arranged, so that the force arms are prolonged, and the rotation control of the screw rod is facilitated.
In order to conveniently use the same set of device to disassemble two symmetrically arranged insulator strings, a plurality of hinge holes 101 are symmetrically arranged on two sides of the center line of the tower head hardware fitting 10. When the insulator string on one side needs to be disassembled, the clamping seat 20 of the device is only required to be fixed on the corresponding insulator string, and the first screw rod mechanism and the second screw rod mechanism are respectively arranged on the corresponding sides of the tower head hardware fitting 10. The hinge holes 101 can be adapted to different sizes of holders 20 to accommodate insulator strings of different diameters.
In order to facilitate clamping the end part of the insulator string into the clamping cavity 21 of the clamping seat 20, a clamping cover 22 for opening the clamping cavity 21 is hinged to the side wall of the clamping seat 20 at the position of the clamping cavity 21, and one end, away from the hinged end, of the clamping cover 22 is detachably connected with the clamping seat 20. Through setting up the clamping cover 22, open the clamping cover 22 and can make the centre gripping chamber 21 open, conveniently put into insulator chain, will press from both sides the clamping cover 22 lid and close the back, the inner wall that presss from both sides the clamping cover 22 compresses tightly insulator chain to make insulator chain fixed, it is articulated to cover 22 one end through setting up the clamping, in order to form the lever, utilize lever principle to make things convenient for the application of force to compress tightly the clamping cover 22, can dismantle the connection through setting up the clamping cover 22 other end, conveniently open and cover and close.
In this embodiment, the clamping cover 22 is fastened to the clamping seat 20, and a bolt is fixed to the fastening portion. In other embodiments, any detachable connection known in the art may be used to secure the clamping cap 22, as long as clamping is achieved and not loosened.
In order to improve the tensile property of the tower head hardware fitting 10, the tower head hardware fitting 10 is an isosceles triangular plate with uniform thickness, the vertex of the tower head hardware fitting 10 is hinged with the tower head, and two angles on the bottom edge of the tower head hardware fitting 10 are respectively used for installing two insulator strings.
In order to improve the structural performance of the matching part of the force application beam 30 and the tower head fitting 10, one end of the force application beam 30, which is close to the tower head fitting 10, is provided with an insertion groove 31 matched with the thickness of the tower head fitting 10. Through setting up inserting groove 31, make application of force roof beam 30 peg graft with the lateral wall of tower head gold utensil 10 to it is more convenient to make application of force roof beam 30 and the contact department application of force of tower head gold utensil 10 lateral wall, and can not produce the planar separation in perpendicular to tower head gold utensil 10 place, effectively prevents application of force roof beam 30 and buckles or splits.
In order to disassemble two symmetrically arranged insulator strings, the force application beam 30 can be effectively hinged, and the force application beam 30 is hinged with the top point of the tower head hardware fitting 10. With this arrangement, the hinge connection can be effectively achieved regardless of whether the force application beam 30 is inserted from any of the two sides of the tower head fitting 10.
In order to facilitate the hinging of the force application beam 30, the vertex of the tower head hardware fitting 10 is hinged to the tower head through a hinging shaft, one end of the force application beam 30, which is close to the tower head hardware fitting 10, is provided with a hook part 32, and the hook part 32 is hung on the bottom of the hinging shaft. Through setting up articulated shaft and couple portion 32, utilize the mode of closure to realize articulated, easy to assemble and dismantlement.
In order to fix the distance to a certain extent after the adjustment is completed and prevent the distance from shaking, the hinge joint of the first lead screw mechanism and the force application beam 30 and the hinge joint of the second lead screw mechanism and the tower head hardware fitting 10 are respectively provided with a locking mechanism 33. In this embodiment, the locking mechanism 33 is a locking screw, the locking screw is screwed into the hinge to fix the two hinged parts, and a rotating rod for facilitating screwing is mounted at the end of the locking screw.
In summary, the invention provides a duplex insulator string handling device, which clamps and fixes the end of a newly replaced insulator string by arranging a clamping seat, and by arranging a first lead screw mechanism and a force application beam, the clamping seat (namely, the end of the newly replaced insulator string) is drawn close to the force application beam (namely, close to a tower head fitting) by the first lead screw mechanism, and in the process, the force application beam presses the tower head fitting on the side wall of the tower head fitting by a lever principle to prevent the tower head fitting from further rotating, and reversely pulls the tower head fitting to rotate by the gravity of the insulator string to a certain extent, so that the tower head fitting is pulled back to a balanced state, and finally, the end of the newly replaced insulator string is in contact with the installation position of the tower head fitting, thereby facilitating a user to connect the newly replaced insulator string with the tower head fitting. Through setting up second screw mechanism, and make second screw mechanism and first screw mechanism establish the both sides in centre gripping chamber respectively to distribute the atress of grip slipper to first screw mechanism and second screw mechanism on, avoid radial too big lead to the lead screw bending and rupture, thereby make whole device be convenient for more the operation, mechanical properties is more stable. The hinge point through setting up second screw mechanism and hinge hole is located the one side that the tower head gold utensil central line is close to the application of force roof beam, makes the atress condition more reasonable, utilizes the pressure of application of force roof beam and second screw mechanism's pulling force to stimulate the gyration of tower head gold utensil simultaneously, prevents to provide antiport's component. The first force applying arm and the second force applying arm are arranged, so that the force arms are prolonged, and the rotation control of the screw rod is facilitated. Through setting up the clamping cover, open the clamping cover and can make the centre gripping chamber open, conveniently put into insulator chain, will press from both sides the clamping cover lid and close the back, the inner wall that presss from both sides the clamping cover compresses tightly insulator chain to make insulator chain fixed, press from both sides clamping cover one end through setting up and articulate, compress tightly the clamping cover with forming the lever, utilize lever principle to make things convenient for the application of force, can dismantle the connection through setting up the clamping cover other end, conveniently open and close with the lid. Through setting up the inserting groove, make the application of force roof beam peg graft with the lateral wall of tower head gold utensil to it is more convenient to make application of force roof beam and tower head gold utensil lateral wall contact department application of force, and can not produce the planar separation in perpendicular to tower head gold utensil place, effectively prevents that application of force roof beam from buckling or splitting. Through setting up articulated shaft and couple portion, utilize the mode of closure to realize articulated, easy to assemble and dismantlement.
The above description is only a preferred embodiment of the present application and is not intended to limit the present application, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, improvement and the like made within the spirit and principle of the present application shall be included in the protection scope of the present application.
Claims (10)
1. The utility model provides a pair insulator cluster loading and unloading device, includes tower head gold utensil (10) that is used for fixed insulator string, its characterized in that still includes grip slipper (20), grip slipper (20) are opened has centre gripping chamber (21) of fixed insulator string, and grip slipper (20) even have first screw mechanism, and first screw mechanism articulates there is application of force roof beam (30), and application of force roof beam (30) are articulated with tower head gold utensil (10), and application of force roof beam (30) and tower head gold utensil (10) lateral wall lever fit.
2. The tandem insulator string handling device according to claim 1, wherein the clamping base (20) is connected with a second screw mechanism, the second screw mechanism and the first screw mechanism are oppositely arranged at two sides of the clamping cavity (21),
a plurality of hinge holes (101) are formed in one side, away from the tower head, of the tower head fitting (10), the second screw rod mechanism is hinged to the hinge holes (101), and the hinge points are located on one side, close to the force application beam (30), of the center line of the tower head fitting (10).
3. The tandem insulator string handling device according to claim 2, wherein the first screw mechanism and the second screw mechanism are respectively sleeved with a first force applying arm (40) and a second force applying arm (41) for rotating the screw.
4. The tandem insulator string handling device according to claim 2, wherein the plurality of hinge holes (101) are symmetrically arranged on two sides of the center line of the tower head hardware fitting (10).
5. The tandem insulator string handling device according to claim 1, wherein the clamping cover (22) for opening the clamping cavity (21) is hinged to the side wall of the clamping seat (20) at the position of the clamping cavity (21), and one end, far away from the hinged end, of the clamping cover (22) is detachably connected with the clamping seat (20).
6. The duplex insulator string handling device according to claim 1, wherein the tower head fitting (10) is an isosceles triangle plate with uniform thickness, the top point of the tower head fitting (10) is hinged with the tower head, and two angles of the bottom edge of the tower head fitting (10) are respectively used for mounting two insulator strings.
7. The tandem insulator string handling device according to claim 6, wherein the end of the force application beam (30) close to the tower head fitting (10) is provided with an insertion groove (31) matched with the thickness of the tower head fitting (10).
8. The tandem insulator string handling device according to claim 6, wherein the force application beam (30) is hinged to the top of the tower head fitting (10).
9. The duplex insulator string handling device according to claim 8, wherein the vertex of the tower head fitting (10) is hinged to the tower head through a hinge shaft, one end of the force application beam (30) close to the tower head fitting (10) is provided with a hook part (32), and the hook part (32) is hung on the bottom of the hinge shaft.
10. The tandem insulator string handling device according to claim 1, wherein a locking mechanism (33) is respectively arranged at a hinge joint of the first screw mechanism and the force application beam (30) and a hinge joint of the second screw mechanism and the tower head hardware fitting (10).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011005203.1A CN111952885A (en) | 2020-09-22 | 2020-09-22 | Duplex insulator string assembling and disassembling device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011005203.1A CN111952885A (en) | 2020-09-22 | 2020-09-22 | Duplex insulator string assembling and disassembling device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN111952885A true CN111952885A (en) | 2020-11-17 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202011005203.1A Pending CN111952885A (en) | 2020-09-22 | 2020-09-22 | Duplex insulator string assembling and disassembling device |
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| CN (1) | CN111952885A (en) |
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| CN208522354U (en) * | 2018-05-25 | 2019-02-19 | 国网河南省电力公司检修公司 | 840kN grades of tension resistant four cross-arm side insulator replacement tools |
| CN209434748U (en) * | 2019-02-11 | 2019-09-24 | 国家电网有限公司 | Side of wire yoke plate clamp for vertical rotary replacement direct current grounding pole line tension string |
| CN210744601U (en) * | 2019-10-28 | 2020-06-12 | 中国南方电网有限责任公司超高压输电公司南宁局 | Support piece structure of universal card for single-sheet insulator of jumper wire of tension tower and universal card |
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2020
- 2020-09-22 CN CN202011005203.1A patent/CN111952885A/en active Pending
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5377402A (en) * | 1993-10-27 | 1995-01-03 | Semple, Jr.; Alan R. | Electrical insulator change-out tool |
| CN201178266Y (en) * | 2008-04-02 | 2009-01-07 | 云南电网公司大理供电局 | Clamp apparatus live replacing dual insulator of 500kV terminal |
| CN206506228U (en) * | 2016-09-23 | 2017-09-19 | 国家电网公司 | Extra-high voltage levels tetrad strain insulator side of wire isolator hot-line replacing instrument |
| JP2018085811A (en) * | 2016-11-22 | 2018-05-31 | 中国電力株式会社 | Insulator support net |
| CN107342553A (en) * | 2017-04-14 | 2017-11-10 | 国家电网公司 | A kind of the replacing fixture and replacing options of straight line duplex V insulator strings |
| CN208522354U (en) * | 2018-05-25 | 2019-02-19 | 国网河南省电力公司检修公司 | 840kN grades of tension resistant four cross-arm side insulator replacement tools |
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| CN209434748U (en) * | 2019-02-11 | 2019-09-24 | 国家电网有限公司 | Side of wire yoke plate clamp for vertical rotary replacement direct current grounding pole line tension string |
| CN210744601U (en) * | 2019-10-28 | 2020-06-12 | 中国南方电网有限责任公司超高压输电公司南宁局 | Support piece structure of universal card for single-sheet insulator of jumper wire of tension tower and universal card |
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Application publication date: 20201117 |
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