CN112542802B - Auxiliary tool and method for installing and replacing spacer of power transmission line - Google Patents
Auxiliary tool and method for installing and replacing spacer of power transmission line Download PDFInfo
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- CN112542802B CN112542802B CN202011330112.5A CN202011330112A CN112542802B CN 112542802 B CN112542802 B CN 112542802B CN 202011330112 A CN202011330112 A CN 202011330112A CN 112542802 B CN112542802 B CN 112542802B
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- pulley
- spacer
- auxiliary tool
- lead screw
- transmission line
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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
Abstract
The invention discloses an auxiliary tool and a method for installing and replacing a spacer of a power transmission line, which solve the problem of low efficiency in replacement or installation of the spacer in the prior art, and have the beneficial effects of fast folding of a lead and convenience in disassembly and assembly, and the specific scheme is as follows: the utility model provides an appurtenance is changed in installation of transmission line conductor spacer, includes the regulation pole, and the length of regulation pole is adjustable, and the both ends of adjusting the pole are connected with loose pulley assembly respectively, and loose pulley assembly includes two pulleys that the activity set up from top to bottom, and at least one pulley hoop has the recess that is used for going into the wire, and one of them pulley can rotate the angle of settlement for another pulley to go into pulley groove with the wire card.
Description
Technical Field
The invention relates to the field of spacer installation and replacement, in particular to an auxiliary tool and method for installing and replacing a spacer of a power transmission line.
Background
The statements in this section merely provide background information related to the present disclosure and may not necessarily constitute prior art.
In order to reduce the occupied area of a line, improve the power transmission capacity and inhibit corona discharge, the existing power transmission line widely adopts a double-split or multi-split conductor erecting mode. To transporting split conductor circuit, receive operational environment or product quality influence, there is the conductor spacer phenomenon of splitting, need change the fracture conductor spacer, to newly-built split conductor circuit, need install the conductor spacer according to the design requirement.
For double-bundle conductors, the operation mode of sitting on one conductor and holding the other conductor is adopted for installing and replacing the spacer by a person, for four-bundle conductors, the operation mode of stepping on one or two conductors and holding the two conductors is adopted for installing and replacing the spacer by a person, and the six-bundle and eight-bundle operation methods are the same as the four-bundle operation methods. At present, the distance between split conductors is about 400-450 mm, and the installation distance between spacers is about 50-60 m, and the inventor finds that the weight of an operator is concentrated on one or two conductors in a sitting or stepping mode, so that the distance between the load-bearing conductor and other conductors is large, the situation that the conductors are difficult to fold when the spacers are replaced or installed occurs, and great inconvenience is brought to installation; meanwhile, certain potential safety hazards exist, and the working efficiency is not high.
Disclosure of Invention
Aiming at the defects in the prior art, the invention aims to provide an auxiliary tool for installing and replacing a spacer of a power transmission line, which is used for being matched with power transmission maintenance personnel to install or replace the spacer, so that the convenience and the safety of operation are improved.
In order to realize the purpose, the invention is realized by the following technical scheme:
the utility model provides an appurtenance is changed in installation of transmission line conductor spacer, includes the regulation pole, and the length of regulation pole is adjustable, and the both ends of adjusting the pole are connected with loose pulley assembly respectively, and loose pulley assembly includes two pulleys that the activity set up from top to bottom, and at least one pulley hoop has the recess that is used for going into the wire, and one of them pulley can rotate the angle of settlement for another pulley to go into pulley groove with the wire card.
According to the auxiliary tool for installing and replacing the spacing rod of the power transmission line, two ends of the adjusting rod can be directly detachably connected with the pulley assembly, so that the auxiliary tool can be used for assisting in the replacement or installation of the spacing rod of the double split conductors;
or, the both ends of adjusting the pole can be dismantled respectively and connect U type spare, the both ends of U type spare respectively with loose pulley assembly can dismantle the connection, through the setting of U type spare, 4 loose pulley assemblies of mountable can be used to the change or the installation of supplementary quadripartion conductor spacer.
The auxiliary tool for installing and replacing the spacer of the power transmission line comprises an adjusting rod, a first guide screw and a second guide screw, wherein the adjusting rod is used for being connected with the pulley assembly; the threads of the first lead screw and the second lead screw are opposite, so that the first lead screw and the second lead screw can be simultaneously closed or separated, and the length of the adjusting rod can be adjusted.
According to the auxiliary tool for installing and replacing the power transmission line spacer, the gear ring is arranged on the lead screw sleeve in the circumferential direction, the adjusting rod further comprises a wrench structure arranged at the gear ring, and the lead screw sleeve is convenient to rotate through the wrench structure.
As above a transmission line conductor spacer installation change appurtenance, the spanner structure includes the shell, the shell overlap in the telescopic hoop of lead screw, the shell is inherent one side of ring gear sets up two supporting shoes that are eight style of calligraphy structure and arrange, the one end and the inside swing joint of shell of two supporting shoes, the other end can block into between the adjacent two latches of ring gear, the activity sets up the supporting shoe switch between two supporting shoes, and sets up the elastic component between one side of supporting shoe and the shell, through the supporting shoe switch, drive the supporting shoe and the ring gear block of one side, another supporting shoe breaks away from with the ring gear to promote the telescopic rotation of lead screw through the ring gear.
According to the auxiliary tool for installing and replacing the power transmission line spacer, in order to ensure the smooth rotation of the supporting blocks, the end, with the narrower distance, of each of the two supporting blocks is clamped into the shell, the shell is provided with the clamping groove, one end of each supporting block is clamped into the clamping groove, and the end part of each clamping groove, into which the supporting block is clamped, is matched with the shape of the clamping groove.
According to the auxiliary tool for installing and replacing the spacer of the power transmission line, the supporting block switches are trapezoidal, two adjacent sides are connected through the round corners, the supporting block switches exceed the shell, and one narrow side of each supporting block switch is arranged towards the gear ring.
According to the auxiliary tool for installing and replacing the spacer of the power transmission line, the pulley assembly comprises the first pulley and the second pulley which are arranged up and down, the first pulley and the second pulley are respectively supported through the support, the bottoms of the supports on two sides of the first pulley or the second pulley are provided with the fixing screw cylinders, and the fixing screw cylinders are used for being connected with the adjusting rods or the U-shaped pieces.
According to the auxiliary tool for installing and replacing the electric transmission line spacer, the two brackets on one side of the pulley assembly are hinged, so that the brackets drive one pulley to rotate relative to the other pulley;
one of them support activity of opposite side sets up the apron, and this side another support setting support pivoted locking switch relatively, and the apron setting can with locking switch complex preformed hole, go into the recess back like this at the wire card, two pulleys are adjusted the back well, and the cover preformed hole passes locking switch, and locking switch rotates to locking loose pulley assembly avoids the accident of wire to drop, in order to do benefit to safe operation.
In a second aspect, the invention also discloses a method for installing and replacing the spacer of the power transmission line, and the auxiliary tool for installing and replacing the spacer of the power transmission line comprises the following steps:
pulley components are arranged at two ends of the adjusting rod;
the length of the adjusting rod is extended;
before entering the wire, one pulley rotates a set angle relative to the other pulley, so that the wire enters between the two pulleys, the pulleys return and limit the wire through the groove;
an operator pushes the auxiliary tool to move along the lead and reaches the position of the spacer to be replaced or installed, the length of the adjusting rod is shortened, the lead is folded, and the spacer is installed after being replaced;
after replacement or installation is completed, the auxiliary tool is removed from the wire by rotating the other pulley relative to the pulley again.
The beneficial effects of the invention are as follows:
1) the length of the adjusting rod can be adjusted, the length of the adjusting rod can be adjusted as required, the lead can be conveniently folded, and the spacer is convenient to replace or install; through the arrangement of the pulley assembly, the auxiliary tool can move smoothly along the wire, and the operation efficiency is improved.
2) The adjusting rod is detachably connected with the pulley assembly or detachably connected with the U-shaped part, so that the auxiliary tool is convenient to disassemble and assemble, the use of the wires in different splitting modes can be realized, the replacement or installation of the double-split wire or the four-split wire spacing rod can be realized in an auxiliary mode, and the universality is high.
3) According to the adjusting piece, the first lead screw and the second lead screw can move reversely or oppositely through the arrangement of the lead screw sleeve, so that the length of the adjusting rod can be adjusted; further through the setting of spanner structure, can further the adjustment of adjusting lever length to the lead screw sleeve of fast revolution.
4) The wire limiting device can ensure that the pulley assembly limits the wire through the arrangement of the pulley assembly groove, ensures the stable support of the pulley assembly on the wire to a certain extent, further effectively ensures the stable support of the pulley assembly on the wire through the matching of the movably arranged cover plate and the locking switch, has the function of preventing the wire from falling off, has stable arrangement of the auxiliary tool, and in turn ensures the safety of operators.
5) The wire is supported by the two pulleys arranged up and down, the upper pulley and the lower pulley ensure that the wire can rotate flexibly in a tensioning state, the auxiliary tool cannot be interfered to move along the wire, and accordingly the working efficiency of operators can be guaranteed.
Drawings
The accompanying drawings, which are incorporated in and constitute a part of this specification, are included to provide a further understanding of the invention, and are incorporated in and constitute a part of this specification, illustrate exemplary embodiments of the invention and together with the description serve to explain the invention and not to limit the invention.
Fig. 1 is a schematic structural diagram of an installation and replacement auxiliary tool for a power transmission line spacer according to one or more embodiments of the invention, which is applied to a quad-bundled conductor.
Fig. 2 is a schematic structural diagram of an auxiliary tool for installing and replacing a power line spacer according to one or more embodiments of the present invention, applied to a double-bundle conductor.
FIG. 3 is a schematic illustration of an adjustment lever arrangement according to one or more embodiments of the present invention.
FIG. 4 is an enlarged view of a portion of an adjustment stem according to one or more embodiments of the present invention.
FIG. 5 is a schematic illustration of a housing of the present invention according to one or more embodiments.
Fig. 6 is an elevation view of a sheave assembly according to one or more embodiments of the present invention.
Fig. 7 is a schematic view of the opening of a first sheave relative to a second sheave of a sheave assembly according to one or more embodiments of the present invention.
Fig. 8 is a schematic view of an arrangement of a U-shaped element according to one or more embodiments of the invention.
Fig. 9 is a schematic view of a U-shaped element according to one or more embodiments of the invention provided with a threaded hole.
In the figure: the spacing or dimensions between each other are exaggerated to show the location of the various parts, and the schematic is shown only schematically.
Wherein: 1. the novel screw driver comprises a screw rod sleeve, a shell, a screw rod, a first screw rod, a second screw rod, a wrench structure, a gear ring, a clamping groove, a spring, a supporting block switch, a supporting block, a fixing screw cylinder, a second pulley, a first pulley, a penetrating bolt, a rivet, a hinge, a locking switch, a cover plate, a supporting plate, an end screw rod, a U-shaped support, a penetrating screw hole and a pulley assembly, wherein the screw rod sleeve comprises a screw rod sleeve, a shell, a screw rod, a first screw rod, a second screw rod and a wrench structure, the wrench structure comprises 7, a gear ring, 8, a clamping groove, 9, a spring, 10, a supporting block switch, 11, 12, the fixing screw cylinder, 13, the second pulley, 14, the first pulley, 15, the penetrating bolt, 16, the hinge, 18, the locking switch, 19, the supporting plate, the end screw rod, the U-shaped support, the penetrating screw hole and the pulley assembly.
Detailed Description
It is to be understood that the following detailed description is exemplary and is intended to provide further explanation of the invention as claimed. Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs.
It is noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of exemplary embodiments according to the invention. As used herein, the singular forms "a", "an", and "the" are intended to include the plural forms as well, and it should be understood that when the terms "comprises" and/or "comprising" are used in this specification, they specify the presence of stated features, steps, operations, devices, components, and/or combinations thereof;
for convenience of description, the words "up", "down", "left" and "right" in the present application, if any, merely indicate correspondence with the directions of up, down, left and right of the drawings themselves, and do not limit the structure, but merely facilitate the description of the invention and simplify the description, rather than indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, are not to be construed as limiting the invention.
Term interpretation section: the terms "mounted," "connected," "fixed," and the like in the present invention are to be understood in a broad sense, and for example, the terms "mounted," "connected," and "fixed" may be fixed, detachable, or integrated; the two components can be connected mechanically or electrically, directly or indirectly through an intermediate medium, or connected internally or in an interaction relationship, and the terms used in the present invention should be understood as having specific meanings to those skilled in the art.
As described in the background art, the problem that a conductor is difficult to fold during replacement or installation of a spacer exists in the prior art, and in order to solve the technical problem, the invention provides an auxiliary tool for installation and replacement of a spacer of a power transmission line and a use method thereof.
In a typical embodiment of the present invention, referring to fig. 1, an auxiliary tool for installing and replacing a spacer for a power transmission line includes an adjusting rod, the length of the adjusting rod is adjustable, two ends of the adjusting rod are respectively connected to a pulley assembly, the pulley assembly includes two pulleys movably disposed up and down, at least one pulley is annularly provided with a groove for clamping a wire, and one pulley can rotate relative to the other pulley by a set angle so as to clamp the wire into the groove of the pulley, and after the wire is clamped, the wire is accommodated in the groove.
Referring to fig. 3, the adjusting rod includes a first lead screw 4 and a second lead screw 5, the first lead screw and the second lead screw are connected through a lead screw sleeve 1, and the first lead screw and the second lead screw can respectively extend from the top end and the bottom end of the lead screw sleeve; and first lead screw and second lead screw thread are opposite, and two lead screws draw close or keep away from simultaneously when rotating lead screw sleeve 1, and first lead screw and second lead screw keep away from lead screw sleeve's tip and set up screw rod 3 respectively, and screw rod 3 specifically can be the M16 screw rod, and lead screw sleeve 1 sets up ring gear 7 with spanner structure 6 junction, and ring gear 7 is fixed in lead screw sleeve's hoop.
Referring to fig. 4 and 5, the wrench structure includes a housing 2, a screw sleeve penetrates through the housing, a handle 6 is disposed at one end of the housing, two support blocks 11 arranged in a splayed configuration are movably disposed at one side of a gear ring inside the housing 2, one ends of the two support blocks 11 are movably connected with the inside of the housing 2, the other ends of the two support blocks can be clamped between two adjacent latches of the gear ring, a support block switch 10 is movably disposed between the two support blocks, and an elastic member is disposed between one side of each support block and the inner side wall of the housing.
Specifically, the end, with the narrower distance, of each of the two support blocks is connected with the shell, the shell is provided with a clamping groove 8, one end of each support block is clamped into the clamping groove, the clamping groove is arc-shaped, the end part, clamped into the clamping groove, of each support block is also arc-shaped, and the shape of the end part is matched with that of the clamping groove;
and supporting shoe switch 10 is trapezoidal, adjacent both sides are through fillet transitional coupling, and the shape of supporting shoe switch and the supporting shoe shape looks adaptation of both sides, under the normality, one side of supporting shoe switch broad sets up towards ring gear 7, rotate for the shell through the supporting shoe switch, make the supporting shoe and the ring gear block of one side, another supporting shoe breaks away from with the ring gear, the supporting shoe pushes the ring gear under the effect of supporting shoe switch and rotates, drive the telescopic rotation of lead screw through the ring gear, thereby drive the motion of first lead screw and second lead screw, realize the adjustment of regulating lever length.
For example, by rotating the supporting block switch 10, the wider end of the supporting block switch presses the supporting block on one side, and the side supporting block 11 rotates around the corresponding side slot to press the elastic member on the side, so that the supporting block on the side is separated from the gear ring; meanwhile, the supporting block 11 at the other side rotates around the corresponding clamping groove 8 under the elastic force action of the elastic element at the corresponding side and is buckled and pressed on the gear ring, and then the handle 6 is pushed anticlockwise to realize clockwise or anticlockwise rotation of the screw rod sleeve 1.
Furthermore, the supporting block switch protrudes out of the shell, so that the supporting block switch is toggled towards two sides outside the shell, and the rotation of the screw rod sleeve is realized.
Referring to fig. 6 and 7, the pulley assembly 25 includes two pulleys, i.e., a first pulley 14 and a second pulley 13, which are disposed up and down, and are supported by a bracket, and a fixing screw tube for connecting with a screw or a U-shaped member is disposed at the bottom of the bracket on both sides of the second pulley, and the U-shaped member is a U-shaped screw.
The two brackets at one side of the pulley component are hinged, and a hinge 17 can be arranged specifically, so that the brackets drive one pulley to rotate relative to the other pulley; and a cover plate is movably arranged at the bottom of the upper bracket for supporting the first pulley at the other side, the cover plate can be arranged through a hinge, and a locking switch 18 which can be in locking connection with the cover plate is arranged at one side of the lower bracket for supporting the second pulley.
It is easy to understand that the fixing screw barrel 12 is matched with the M16 screw 3, and the U-shaped screw comprises a U-shaped bracket 23, both ends of the U-shaped bracket 23 are also respectively provided with an end screw 22, the end screws 22 can also be matched with the fixing screw barrel 12, as shown in fig. 8 and 9, and the middle part of the U-shaped screw is provided with a through screw hole 24 for connecting with the screw.
A support plate 20 is additionally arranged on the outer side of the bracket of the pulley assembly, a penetrating bolt 15 penetrates through the bracket and the support plate 20, and a rivet 16 is arranged between the bracket and the support plate; the first pulley 14 is rotatable around a hinge on one side, the cover plate 19 is rotatable around a hinge on the other side, and the cover plate 19 is provided with a prepared hole having the same shape as the lock switch 18, and the lock switch 18 is rotated after the two are attached to each other, thereby retracting the cover plate 19.
Specifically, the locking switch 18 is T-shaped, one end of the locking switch is fixed to the bracket on the side of the second pulley, and the locking switch is rotatably disposed with respect to the bracket.
The grooves are respectively formed in the circumferential directions of the first pulley and the second pulley, when the upper pulley and the lower pulley are arranged in an aligned mode, a space for accommodating a wire can be formed, and the other pulley is opened relative to one pulley, so that the wire can conveniently enter the grooves.
Further, in order to change the four-split conductor spacer, the U-shaped screw rod comprises a U-shaped support 23, two sides of the U-shaped support 23 are respectively provided with a pulley assembly, 4 sets of pulley assemblies 25 are arranged in the same way, the middle of the U-shaped support 23 is provided with a piercing screw hole 24 arranged along the radial direction of the U-shaped support, the size of the piercing screw hole is matched with the size of a screw rod at the end part of a first screw rod and a second screw rod of the adjusting rod, and after the screw rod penetrates through the piercing screw hole, a nut is arranged, and a split pin is arranged to prevent the adjusting rod from being separated.
Referring to fig. 2, the explanation will be given by taking the example of replacing or installing the double bundled conductor spacer:
pulley components are arranged at two ends of the adjusting rod;
the adjusting rod wrench structure 6 is rotated, the first lead screw and the second lead screw rotate in opposite directions, and the integral extension of the auxiliary tool is realized;
before entering a lead, a locking switch 18 is rotated, a cover plate 19 is opened, a first pulley (14) rotates around a hinge on one side, the lead is sleeved in grooves of the two pulleys, and the lead cannot be separated from gaps of the upper and lower grooves because the distance between the upper and lower second pulleys is small;
the hinges at two sides are rotated, the preformed hole on the cover plate 19 is embedded into the locking switch 18, and the locking switch 18 is rotated to be locked;
similarly, another wire is embedded into the pulley assembly at the other end of the adjusting rod, and two split wires are respectively sleeved into the pulley assemblies at the two ends of the adjusting rod.
When moving, an operator pushes the auxiliary tool to advance together, the auxiliary tool reaches the position of the spacer to be replaced or installed, the adjusting rod wrench 6 is rotated in the opposite direction, the first lead screw and the second lead screw rotate in the same direction, and the lead is folded, so that the replacement or installation of the spacer is completed; the locking switches 18 at both ends are opened, and the first pulley 14 is rotated to remove the auxiliary tool from the wire.
The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (5)
1. The auxiliary tool for installing and replacing the spacer of the power transmission line is characterized by comprising an adjusting rod, wherein the length of the adjusting rod is adjustable, two ends of the adjusting rod are respectively connected with a pulley assembly, the pulley assembly comprises two pulleys which are movably arranged up and down, at least one pulley is annularly provided with a groove for clamping a wire, and one pulley can rotate for a set angle relative to the other pulley so as to clamp the wire into the groove of the pulley;
the two ends of the adjusting rod are respectively detachably connected with a U-shaped part, and the two ends of the U-shaped part are respectively detachably connected with the pulley assembly; the pulley assembly comprises a first pulley and a second pulley which are arranged up and down, the first pulley and the second pulley are respectively supported by a bracket, and the two brackets on one side of the pulley assembly are hinged to each other, so that the bracket drives one pulley to rotate relative to the other pulley; a cover plate is movably arranged on one of the supports on the other side, a locking switch which can rotate relative to the supports is arranged on the other support on the other side, and a preformed hole which can be matched with the locking switch is formed in the cover plate;
the adjusting rod comprises a first lead screw and a second lead screw which are connected with the pulley assembly, and one ends of the first lead screw and the second lead screw are respectively screwed into the lead screw sleeves; the first lead screw and the second lead screw are provided with opposite threads;
the screw rod sleeve is annularly provided with a gear ring, and the adjusting rod further comprises a wrench structure arranged at the gear ring; the spanner structure includes the shell, the shell overlap in the telescopic hoop of lead screw, the shell is inherent one side of ring gear sets up two supporting shoes that are eight style of calligraphy structures and arrange, the one end and the inside swing joint of shell of two supporting shoes, and the other end can block into between the two adjacent latches of ring gear, and the activity sets up the supporting shoe switch between two supporting shoes, and sets up the elastic component between one side of supporting shoe and the shell.
2. The auxiliary tool for installing and replacing the spacing rod of the power transmission line as claimed in claim 1, wherein one end of the two support blocks, which is at a relatively narrow distance, is clamped into the shell, the shell is provided with a clamping groove, one end of each support block is clamped into the clamping groove, and the shape of the end part of the clamping groove, into which the support block is clamped, is matched with the shape of the clamping groove.
3. The auxiliary tool for installing and replacing the spacer bar of the power transmission line as claimed in claim 1, wherein the supporting block switch is trapezoidal, two adjacent sides are connected through a fillet, the supporting block switch is arranged beyond the shell, and the narrower side of the supporting block switch is arranged towards the gear ring.
4. The auxiliary tool for installing and replacing the spacer of the power transmission line according to claim 1, wherein fixing screw cylinders are arranged at the bottoms of the supports on two sides of the first pulley or the second pulley and used for being connected with U-shaped pieces.
5. A method for installing and replacing a power transmission line spacer, which is characterized in that the auxiliary tool for installing and replacing the power transmission line spacer according to any one of claims 1-4 is adopted, and comprises the following steps:
pulley components are arranged at two ends of the adjusting rod;
the length of the adjusting rod is extended;
before entering the wire, one pulley rotates a set angle relative to the other pulley, so that the wire enters between the two pulleys, the pulleys return and limit the wire through the groove;
the operator pushes the auxiliary tool to move along the lead to reach the position of the spacer to be replaced or installed, the length of the adjusting rod is shortened, the lead is folded, and the spacer is installed after being replaced;
after replacement or installation is completed, the auxiliary tool is removed from the wire by rotating the other pulley relative to the pulley again.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011330112.5A CN112542802B (en) | 2020-11-24 | 2020-11-24 | Auxiliary tool and method for installing and replacing spacer of power transmission line |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011330112.5A CN112542802B (en) | 2020-11-24 | 2020-11-24 | Auxiliary tool and method for installing and replacing spacer of power transmission line |
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| Publication Number | Publication Date |
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| CN112542802A CN112542802A (en) | 2021-03-23 |
| CN112542802B true CN112542802B (en) | 2022-09-20 |
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Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN114382296B (en) * | 2021-12-13 | 2023-09-12 | 中建八局新型建造工程有限公司 | Adjustable tooling for truss installation and construction method thereof |
| CN115249957B (en) * | 2021-12-22 | 2023-08-01 | 张旭 | Power transmission line inspection device |
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