CN113488941A - Power grid support frame for power transmission - Google Patents
Power grid support frame for power transmission Download PDFInfo
- Publication number
- CN113488941A CN113488941A CN202110836525.9A CN202110836525A CN113488941A CN 113488941 A CN113488941 A CN 113488941A CN 202110836525 A CN202110836525 A CN 202110836525A CN 113488941 A CN113488941 A CN 113488941A
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- wall
- power grid
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- electric power
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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
-
- 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
- H02G7/05—Suspension arrangements or devices for electric cables or lines
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/50—Photovoltaic [PV] energy
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- Current-Collector Devices For Electrically Propelled Vehicles (AREA)
Abstract
The invention discloses an electric power grid support frame for power transmission, which relates to the technical field of electric power grid support frames and comprises an electric power grid support auxiliary support, an electric power grid support main framework, an electric power grid connection angle plate and an insulating porcelain sleeve, wherein the top of the insulating porcelain sleeve is fixedly connected with the bottom of the electric power grid connection angle plate, a pre-tightening plate is fixedly installed on the left side of the electric power grid support auxiliary support, and one side of the pre-tightening plate is in threaded connection with the outer wall of the electric power grid support main framework. According to the invention, by adopting the matching of the butt strap and the anti-falling framework, the grid connection angle plate can move in a small distance in the grid support auxiliary bracket, and when the anti-falling framework can avoid the falling distance of the grid from being too large, each grid connection angle plate connected with the grid can keep the consistent falling displacement amount, and the pre-tightening plate is arranged to facilitate the installation of the grid support auxiliary bracket on the grid support main framework, so that the installation convenience is improved.
Description
Technical Field
The invention relates to the technical field of power grid support frames, in particular to a power grid support frame for power transmission.
Background
Electric energy is the ability of using electricity to do work (i.e. generate energy) in various forms, the electric energy is an economic, practical, clean and easy-to-control and-convert energy form, and is a special product for the power department to provide power users with quality guaranteed by three parties, such as sending, supplying and using, and the electric energy also has a plurality of characteristics of the product, such as being measurable, estimated, guaranteed or improved, the electric energy is widely applied in various fields of power, lighting, chemistry, textile, communication, broadcasting and the like, and is the main power of scientific and technical development and economic leap of people, the transmission of the electric energy at present needs to be completed by electric wires, so a support frame needs to be erected to support the electric wires. The following problems exist in the prior art:
1. at present, in the process of building a power grid, the power grid moves downwards for a certain distance under the influence of gravity factors and external factors, so that the dropping distances of the power grid on each section of support are inconsistent, and the dropping distances of the power grid in partial distance sections are easy to be overlarge, so that potential safety hazards exist;
2. and if the power line can not be effectively prevented in the falling process, the falling distance of the power line is easy to be larger.
Disclosure of Invention
The invention provides a power grid support frame for power transmission, which aims to reduce the descending displacement of a power line and solve the problem that the power line falls down due to the influence of other factors; the other purpose is to solve the problem that the control is not changed when the power line falls down, so that the falling effect of the power line can be effectively prevented.
In order to solve the technical problems, the technical scheme adopted by the invention is as follows:
the utility model provides an electric power grid support frame for power transmission, supports main framework, electric wire netting connection scute and insulating porcelain bushing including the electric wire netting, the bottom fixed connection of scute is connected with the electric wire netting to the top of insulating porcelain bushing, the left side fixed mounting that the electric wire netting supported the auxiliary framework has the pretension board, the outer wall threaded connection of main framework is supported with the electric wire netting to one side of pretension board, the electric wire netting supports auxiliary framework through the pretension board that sets up and electric wire netting support main framework fixed connection, the inner wall that the electric wire netting supported the auxiliary framework is provided with the attachment strap, the outer wall of attachment strap and the inner wall sliding connection that the electric wire netting supported the auxiliary framework, just the top fixed connection of scute is connected with the electric wire netting to the bottom of attachment strap.
The outer wall of the power grid connecting angle plate penetrates through the inner wall of the power grid supporting auxiliary support, the power grid connecting angle plate is connected with the power grid supporting auxiliary support in a sliding mode through the arranged butt strap, and a falling prevention framework is fixedly mounted at the bottom of the inner wall of the power grid supporting auxiliary support.
The technical scheme of the invention is further improved as follows: the outer wall fixed mounting who prevents the framework of falling has angular form slide, one side fixed mounting of angular form slide has the laminating device, the below of laminating device is provided with the limited movement and keeps off the pipe, the limited movement keeps off the outer wall of pipe and the inner wall joint of angular form slide.
By adopting the technical scheme, the movement limiting baffle pipe in the scheme aims at preventing the power grid connection angle plate from moving downwards for a large distance in the anti-falling framework.
The technical scheme of the invention is further improved as follows: the right side that the limit moved and kept off the pipe is provided with the contact stand, the outer wall and the limit of contact stand move the inner wall sliding connection who keeps off the pipe, the limit moves the sealed trachea of fixedly connected with who keeps off the pipe.
By adopting the technical scheme, when the air pressure in the sealed air pipe changes, the contact stand column can be controlled to move the telescopic distance in the blocking pipe, so that the electric network connection angle plate is subjected to air pressure extrusion contact according to the air pressure flowing direction in the sealed air pipe.
The technical scheme of the invention is further improved as follows: the outer wall of the sealed air pipe is fixedly connected with the inner wall of the anti-falling framework, the air flow pushing pipe is connected to the inside of the left side of the sealed air pipe in a sliding mode, the air flow pushing pipe is located at the top of the left side of the anti-falling framework and is arranged, and the outer wall of the air flow pushing pipe is connected with the inner wall of the anti-falling framework in a sliding mode.
By adopting the technical scheme, when the air flow pushing pipe in the scheme moves towards the sealed air pipe, the flowing direction of the air in the sealed air pipe can be changed.
The technical scheme of the invention is further improved as follows: laminating device holds the chamber by arc contact plate and concave type and constitutes, just the outer wall of arc contact plate and the inner wall sliding connection that the chamber was held to the concave type, the inside wall welding of arc contact plate has the elastic component, the bottom welding of elastic component has the arc stripper plate, the arc stripper plate is through the elastic component and the arc contact plate elastic connection who sets up.
Adopt above-mentioned technical scheme, the arc contact plate in this scheme just can move to concave type holding chamber when receiving the extrusion of external force, just can be to compression elastic component at its in-process that removes for the arc contact plate has possessed the reaction force of certain dynamics, so that exert reaction force to the grid connection scute, reduces the grid connection scute and prevents the distance that moves down in the framework of falling.
The technical scheme of the invention is further improved as follows: the utility model discloses a flexible air bag of holding, including concave type holding chamber, baffle, arc stripper plate, baffle top and arc contact plate, the concave type holds the inner wall bottom fixed mounting in chamber has elasticity pressurized air bag, the top of elasticity pressurized air bag and the bottom overlap joint of arc stripper plate, the top of elasticity pressurized air bag is provided with the baffle, baffle fixed mounting holds the inside wall in chamber at the concave type, just the baffle top and the bottom overlap joint of arc contact plate.
By adopting the technical scheme, the elastic compressed air bag in the scheme also has elastic acting force, and when the arc-shaped contact plate moves for a certain distance in the concave accommodating cavity, the elastic compressed air bag is also extruded.
The technical scheme of the invention is further improved as follows: the right-hand member fixedly connected with of contact stand inlays the piece, the outer wall fixed mounting of embedding piece has the friction pad, one side of friction pad is provided with the ball, the axle center end of ball is connected with the outer wall rotation of embedding piece.
By adopting the technical scheme, the friction pad in the scheme can improve the friction force of the contact stand column in contact with the surface of the grid connection corner plate.
The technical scheme of the invention is further improved as follows: the bottom fixed mounting of strap has the contact pad, the outer wall both sides of electric wire netting support main framework all are provided with supplementary smooth chamber, just the outer wall in supplementary smooth chamber is connected with the inner wall embedment of electric wire netting support main framework.
By adopting the technical scheme, the auxiliary sliding cavity in the scheme is convenient for the contact of the upright post to slide on the surface of the grid connection corner plate.
Due to the adoption of the technical scheme, compared with the prior art, the invention has the technical progress that:
1. the invention provides a power grid support frame for power transmission, which is characterized in that a butt strap and a falling prevention framework are matched, so that a grid connection angle plate can move in a small distance in a grid support auxiliary support, when the falling framework can avoid the falling distance of a power grid from being too large, each grid connection angle plate connected with the power grid can keep the consistent falling displacement amount, and the arranged pre-tightening plate is convenient for installing the grid support auxiliary support on a grid support main framework, so that the convenience in installation is improved.
2. The invention provides a power grid support frame for power transmission, wherein when a grid connection angle plate moves downwards, an access plate is driven to descend, so that the access plate is in contact with an anti-falling framework, an airflow pushing pipe is extruded under the action of the gravity of the access plate, the pushing pipe is pushed into a sealed air pipe, the flowing direction of air pressure in the sealed air pipe is changed, a contact upright post is pushed outwards through the matching of a movement limiting blocking pipe, so that two sides of the grid connection angle plate are clamped by the air pressure, and the descending displacement of the grid connection angle plate is reduced.
3. The invention provides an electric power grid support frame for power transmission, which can further clamp the surface of a grid connection angle plate through an arranged laminating device, and when the laminating device consisting of an arc-shaped contact plate and a concave containing cavity is extruded by the grid connection angle plate, the arc-shaped contact plate can enter the concave containing cavity, and meanwhile, a compression elastic piece and an elastic compressed air bag can be extruded to trigger the reaction force of the compression elastic piece and the elastic compressed air bag, so that the clamping force of the grid connection angle plate can be further improved, and the descending distance of the grid connection angle plate is avoided.
4. The invention provides an electric power grid support frame for power transmission, which is characterized in that an embedded block is arranged on a contact upright post so as to clamp a grid connection angle plate in an extrusion mode, a friction pad is arranged on the surface of the embedded block so as to improve the friction force of the embedded block in contact with the grid connection angle plate, and an auxiliary sliding cavity is arranged on the grid connection angle plate so as to facilitate the embedded block to slide on the surface of the embedded block.
Drawings
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is a cross-sectional view of a structural grid support subframe of the present invention;
FIG. 3 is a structural diagram of a fall protection structure of the present invention;
FIG. 4 is a schematic view of the hermetic tube structural connection of the present invention;
FIG. 5 is a schematic structural view of a bonding apparatus according to the present invention;
FIG. 6 is an enlarged view of the structure at A in FIG. 4 according to the present invention;
fig. 7 is a schematic view of the connection between the grid connection angle plate and the butt strap structure of the invention.
In the figure: 1. the power grid supports the auxiliary bracket; 2. a grid support main framework; 3. the power grid is connected with the angle plate; 4. an insulating porcelain bushing; 5. pre-tightening the plate; 6. a butt strap; 7. a fall arrest architecture; 8. an angular slide plate; 9. a bonding device; 10. a movement limiting baffle pipe; 11. a gas flow pushing tube; 12. sealing the air pipe; 13. contacting the upright post; 14. an arc-shaped contact plate; 15. a concave receiving cavity; 16. an elastic member; 17. an arc-shaped extrusion plate; 18. a baffle plate; 19. an elastic pressurized air bag; 20. embedding a block; 21. a friction pad; 22. a ball bearing; 23. a contact pad; 24. an auxiliary slide chamber.
Detailed Description
The present invention will be described in further detail with reference to the following examples:
example 1
As shown in figures 1-7, the invention provides an electric power grid support frame for power transmission, which comprises a grid support secondary support 1, a grid support main framework 2, a grid connection angle plate 3 and an insulating porcelain bushing 4, wherein the top of the insulating porcelain bushing 4 is fixedly connected with the bottom of the grid connection angle plate 3, a pretightening plate 5 is fixedly installed on the left side of the grid support secondary support 1, one side of the pretightening plate 5 is in threaded connection with the outer wall of the grid support main framework 2, the grid support secondary support 1 is fixedly connected with the grid support main framework 2 through the arranged pretightening plate 5, the arranged pretightening plate 5 is convenient for installing the grid support secondary support 1 on the grid support main framework 2, the installation convenience is improved, a butt strap 6 is arranged on the inner wall of the grid support secondary support 1, the outer wall of the butt 6 is in sliding connection with the inner wall of the grid support secondary support 1, and the bottom of the butt 6 is fixedly connected with the top of the grid connection angle plate 3, the outer wall of the power grid connection angle plate 3 penetrates through the inner wall of the power grid supporting auxiliary support 1, the power grid connection angle plate 3 is connected with the power grid supporting auxiliary support 1 in a sliding mode through the arranged butt strap 6, and the anti-falling framework 7 is fixedly installed at the bottom of the inner wall of the power grid supporting auxiliary support 1.
As shown in fig. 1 to 7, in the present embodiment, preferably, the contact pad 23 is fixedly installed at the bottom of the access board 6, the auxiliary sliding cavities 24 are provided at both sides of the outer wall of the grid-supporting main framework 2, and the outer wall of the auxiliary sliding cavity 24 is fixedly connected with the inner wall of the grid-supporting main framework 2, and the auxiliary sliding cavity 24 slides on the surface of the grid connection angle board 3 in order to facilitate the contact of the upright column 13.
Example 2
As shown in fig. 1 to 7, on the basis of embodiment 1, the present invention provides a technical solution: preferably, an angular sliding plate 8 is fixedly installed on the outer wall of the anti-falling framework 7, an attaching device 9 is fixedly installed on one side of the angular sliding plate 8, a limited moving blocking pipe 10 is arranged below the attaching device 9, the outer wall of the limited moving blocking pipe 10 is clamped with the inner wall of the angular sliding plate 8, the limited moving blocking pipe 10 can play a certain role in blocking the power grid connection angle plate 3 in order to prevent the power grid connection angle plate 3 from moving downwards for a too long distance in the anti-falling framework 7, a contact upright column 13 is arranged on the right side of the limited moving blocking pipe 10, the outer wall of the contact upright column 13 is in sliding connection with the inner wall of the limited moving blocking pipe 10, a sealing air pipe 12 is fixedly connected with the limited moving blocking pipe 10, and when the air pressure in the sealing air pipe 12 changes, the telescopic distance of the contact upright column 13 in the limited moving blocking pipe 10 can be controlled, thereby realizing the air pressure extrusion contact of the grid connection angle plate 3 according to the air pressure flowing direction in the sealed air pipe 12.
Example 3
As shown in fig. 1 to 7, on the basis of embodiment 1, the present invention provides a technical solution: preferably, the outer wall of the sealed air pipe 12 is fixedly connected with the inner wall of the anti-falling framework 7, the air flow pushing pipe 11 is slidably connected inside the left side of the sealed air pipe 12, the air flow pushing pipe 11 is located at the top of the left side of the anti-falling framework 7, the outer wall of the air flow pushing pipe 11 is slidably connected with the inner wall of the anti-falling framework 7, when the air flow pushing pipe 11 moves towards the sealed air pipe 12, the flowing direction of air in the sealed air pipe 12 can be changed, so that the air flows towards the direction of the contact column 13, the right end of the contact column 13 is fixedly connected with the embedded block 20, the outer wall of the embedded block 20 is fixedly provided with the friction pad 21, one side of the friction pad 21 is provided with the ball 22, the axial center end of the ball 22 is rotatably connected with the outer wall of the embedded block 20, and the friction pad 21 can improve the friction force of the surface contact between the contact column 13 and the grid connection angle plate 3.
Example 4
As shown in fig. 1 to 7, on the basis of embodiment 1, the present invention provides a technical solution: preferably, the attaching device 9 is composed of an arc contact plate 14 and a concave accommodating cavity 15, the outer wall of the arc contact plate 14 is slidably connected with the inner wall of the concave accommodating cavity 15, an elastic member 16 is welded on the inner side wall of the arc contact plate 14, an arc extrusion plate 17 is welded at the bottom of the elastic member 16, the arc extrusion plate 17 is elastically connected with the arc contact plate 14 through the arranged elastic member 16, the arc contact plate 14 can move towards the concave accommodating cavity 15 when being extruded by an external force, and the elastic member 16 is compressed in the moving process of the arc contact plate, so that the arc contact plate 14 has a certain force reaction force to apply a reaction force to the grid connection angle plate 3, the distance that the grid connection angle plate 3 moves downwards in the anti-falling framework 7 is reduced, an elastic compressed air bag 19 is fixedly installed at the bottom of the inner wall of the concave accommodating cavity 15, and the top of the elastic compressed air bag 19 is overlapped with the bottom of the arc extrusion plate 17, the baffle 18 is arranged above the elastic compressed air bag 19, the baffle 18 is fixedly installed on the inner side wall of the concave accommodating cavity 15, the top of the baffle 18 is in lap joint with the bottom of the arc-shaped contact plate 14, the elastic compressed air bag 19 also has elastic acting force, and when the arc-shaped contact plate 14 moves a certain distance in the concave accommodating cavity 15, the elastic compressed air bag 19 is also extruded.
The working principle of the power grid support frame for power transmission is described in detail below.
As shown in fig. 1-7, in the invention, a power line firstly passes through an insulating porcelain bushing 4, at this time, a power grid connection angle plate 3 bears the weight of the power line, when the borne weight is large, the power grid connection angle plate 3 moves downwards and simultaneously drives an attachment plate 6 to move downwards, when the power grid connection angle plate 3 descends to a certain distance, at this time, part of the surface of the upper end of the power grid connection angle plate 3 enters into a falling prevention framework 7 and simultaneously extrudes a bonding device 9, and when the attachment plate 6 contacts with the falling prevention framework 7, an air flow pushing pipe 11 is extruded and a contact upright post 13 is pushed outwards through a sealing air pipe 12, so that an embedded block 20 on the contact upright post 13 clamps the power grid connection angle plate 3 by air pressure, thereby reducing the descending distance of the power grid connection angle plate 3.
The present invention has been described in general terms in the foregoing, but it will be apparent to those skilled in the art that modifications and improvements can be made thereto based on the present invention. Therefore, modifications or improvements are within the scope of the invention without departing from the spirit of the inventive concept.
Claims (8)
1. The utility model provides an electric power electric wire netting support frame for power transmission, supports main framework (2), grid connection scute (3) and insulating insulator (4) including the electric wire netting, the top of insulating insulator (4) and the bottom fixed connection of grid connection scute (3), the left side fixed mounting that the electric wire netting supported auxiliary framework (1) has pretension board (5), the outer wall threaded connection of main framework (2) is supported with the electric wire netting to one side of pretension board (5), the electric wire netting supports auxiliary framework (1) and grid support main framework (2) fixed connection through pretension board (5) that set up, its characterized in that: an access board (6) is arranged on the inner wall of the power grid supporting auxiliary support (1), the outer wall of the access board (6) is in sliding connection with the inner wall of the power grid supporting auxiliary support (1), and the bottom of the access board (6) is fixedly connected with the top of the power grid connecting angle plate (3);
the outer wall of the power grid connection angle plate (3) penetrates through the inner wall of the power grid support auxiliary support (1), the power grid connection angle plate (3) is connected with the power grid support auxiliary support (1) in a sliding mode through the arranged butt strap (6), and a falling prevention framework (7) is fixedly mounted at the bottom of the inner wall of the power grid support auxiliary support (1).
2. An electric power grid support frame for power transmission according to claim 1, characterized in that: the outer wall fixed mounting who prevents framework (7) of falling has angular form slide (8), one side fixed mounting of angular form slide (8) has laminating device (9), the below of laminating device (9) is provided with and limitedly moves fender pipe (10), the outer wall that the limitedly moved fender pipe (10) and the inner wall joint of angular form slide (8).
3. An electric power grid support frame for power transmission according to claim 2, characterized in that: the right side of the limited movement blocking pipe (10) is provided with a contact upright post (13), the outer wall of the contact upright post (13) is in sliding connection with the inner wall of the limited movement blocking pipe (10), and the limited movement blocking pipe (10) is fixedly connected with a sealed air pipe (12).
4. An electric power grid support frame for power transmission according to claim 3, characterized in that: the outer wall of sealed trachea (12) and the inner wall fixed connection who prevents framework (7) of falling, the inside sliding connection in left side of sealed trachea (12) has air current propulsion pipe (11), air current propulsion pipe (11) are located the left side top setting of preventing framework (7) of falling, just the outer wall of air current propulsion pipe (11) and the inner wall sliding connection who prevents framework (7) of falling.
5. An electric power grid support frame for power transmission according to claim 2, characterized in that: laminating device (9) hold chamber (15) by arc contact plate (14) and concave type and constitute, just the inner wall sliding connection that chamber (15) was held to the outer wall of arc contact plate (14) and concave type, the inside wall welding of arc contact plate (14) has elastic component (16), the bottom welding of elastic component (16) has arc stripper plate (17), elastic component (16) and arc contact plate (14) elastic connection that arc stripper plate (17) set up through.
6. An electric power grid support frame for power transmission according to claim 5, characterized in that: the utility model discloses a convenient air bag of air compressor, including concave type holding chamber (15), the inner wall bottom fixed mounting of concave type holding chamber (15) has elasticity pressurized air bag (19), the top of elasticity pressurized air bag (19) and the bottom overlap joint of arc stripper plate (17), the top of elasticity pressurized air bag (19) is provided with baffle (18), baffle (18) fixed mounting holds the inside wall of chamber (15) at the concave type, just baffle (18) top and the bottom overlap joint of arc contact plate (14).
7. An electric power grid support frame for power transmission according to claim 3, characterized in that: the right-hand member fixedly connected with of contact stand (13) inlays piece (20), the outer wall fixed mounting of embedding piece (20) has friction pad (21), one side of friction pad (21) is provided with ball (22), the axle center end of ball (22) is connected with the outer wall rotation of embedding piece (20).
8. An electric power grid support frame for power transmission according to claim 1, characterized in that: the bottom of the butt strap (6) is fixedly provided with a contact pad (23), two sides of the outer wall of the power grid supporting main framework (2) are respectively provided with an auxiliary sliding cavity (24), and the outer wall of the auxiliary sliding cavity (24) is fixedly connected with the inner wall of the power grid connecting angle plate (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110836525.9A CN113488941B (en) | 2021-07-23 | 2021-07-23 | Electric power grid support frame for electric power transmission |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110836525.9A CN113488941B (en) | 2021-07-23 | 2021-07-23 | Electric power grid support frame for electric power transmission |
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| Publication Number | Publication Date |
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| CN113488941A true CN113488941A (en) | 2021-10-08 |
| CN113488941B CN113488941B (en) | 2023-08-22 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202110836525.9A Active CN113488941B (en) | 2021-07-23 | 2021-07-23 | Electric power grid support frame for electric power transmission |
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| CN (1) | CN113488941B (en) |
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| CN112211470A (en) * | 2020-10-21 | 2021-01-12 | 牛桂平 | Intelligent telegraph pole with 5G signal transmission protection structure |
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| EP1475871A1 (en) * | 2003-05-09 | 2004-11-10 | Legrand S.p.A. | Bracket unit for supporting cable-carrier systems in industrial ductings |
| JP2008095456A (en) * | 2006-10-13 | 2008-04-24 | Chugoku Electric Power Co Inc:The | Pole |
| CN203056511U (en) * | 2013-01-31 | 2013-07-10 | 重庆自勇科技有限公司 | Overhead suspension wire clamp |
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| Publication number | Publication date |
|---|---|
| CN113488941B (en) | 2023-08-22 |
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