CN115189313B - Wire clamping device - Google Patents
Wire clamping device Download PDFInfo
- Publication number
- CN115189313B CN115189313B CN202210878973.XA CN202210878973A CN115189313B CN 115189313 B CN115189313 B CN 115189313B CN 202210878973 A CN202210878973 A CN 202210878973A CN 115189313 B CN115189313 B CN 115189313B
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- Prior art keywords
- wire
- fixing
- threading hole
- fixing piece
- hole
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- 238000001125 extrusion Methods 0.000 claims abstract description 17
- 238000000034 method Methods 0.000 abstract description 13
- 230000008569 process Effects 0.000 abstract description 10
- 238000010276 construction Methods 0.000 description 6
- 230000009471 action Effects 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 238000012423 maintenance Methods 0.000 description 2
- 230000007246 mechanism Effects 0.000 description 2
- 238000005452 bending Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000003754 machining Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
Classifications
-
- 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
- H02G7/02—Devices for adjusting or maintaining mechanical tension, e.g. take-up device
Abstract
The utility model relates to an electric power tight line technical field especially relates to a card line ware, card line ware has first solidus spare and second solidus spare, first mounting and second solidus spare can extrude fixedly to the wire respectively, before the wire is taut, make card line ware and wire realize fixed connection, the extrusion fixed direction of first solidus spare and second solidus spare is parallel or crossing, make the different positions of wire be fixed respectively, increase the fixed strength of wire, first solidus spare and second solidus spare swing joint main part, for the card line ware of current many connecting rod clamp structure, the framework is simple, it is more convenient to process.
Description
Technical Field
The application relates to the technical field of electric power wire tightening, in particular to a wire clamping device.
Background
The electric wire is an important device for guaranteeing power transportation, the electric wire needs to be tensioned and wired in the construction process, and tension is applied to the electric wire through the tightener. The wire tightener is connected with the electric wire through the wire clamping device, and the wire clamping device is a common wire holding tool used in construction and maintenance of electric power, telecommunication and railway electrified overhead lines and is suitable for overhead power line construction.
The wire clamping device commonly used in the market at present adopts a multi-link mechanism to clamp the wire, has complex structure and complex processing, can convert partial tension into extrusion force to the wire in the use process of the wire clamping device, and is easy to cause the phenomenon that the wire is loosened and separated due to insufficient clamping force at the wire clamping part of the wire clamping device under the condition of small tensioning force at the initial stage of tensioning.
Disclosure of Invention
A series of concepts in simplified form are introduced in the application content section, which will be described in further detail in the detailed description section. This summary is not intended to identify key features or essential features of the claimed subject matter, nor is it intended to be used as an aid in determining the scope of the claimed subject matter.
In order to solve the technical problems that the existing wire clamping device adopts a multi-connecting rod clamping structure, which leads to complex structure, complex processing and insufficient clamping force, the main aim of the application is to provide a wire clamping device.
In order to achieve the purposes of the application, the application adopts the following technical scheme:
a wire clamping device comprises a main body part, a first wire fixing piece and a second wire fixing piece;
the main body part is provided with a threading hole, the first wire fixing piece is movably mounted on the main body part in a first direction, and the second wire fixing piece is movably mounted on the main body part in a second direction;
the first wire fixing piece is used for extruding and fixing the wire with the inner wall of the threading hole in a first direction, the second wire fixing piece is used for extruding and fixing the wire with the inner wall of the threading hole in a second direction, and the first direction is parallel to or intersects with the second direction.
Further, in some embodiments of the present application, the first wire fixing member includes a first fixing post and a first adjusting nut;
the first fixing column is in threaded connection with the first adjusting nut, the first adjusting nut is rotatably mounted on the main body portion, and the first adjusting nut enables the first fixing column to extend into and extend out of the threading hole through rotation.
Further, in some embodiments of the present application, the main body portion is provided with a first mounting hole communicated with the threading hole, the first adjusting nut is rotatably mounted on an outer end side of the first mounting hole, and the first fixing column penetrates through the first mounting hole.
Further, in some embodiments of the present application, the second wire fixing member includes a second fixing post and a second adjusting nut;
the second fixing column is in threaded connection with the second adjusting nut, the second adjusting nut is rotatably mounted on the main body portion, and the second adjusting nut enables the second fixing column to extend into and out of the threading hole through rotation.
Further, in some embodiments of the present application, the main body portion is provided with a second mounting hole communicated with the threading hole, the second adjusting nut is rotatably mounted on an outer end side of the second mounting hole, and the second fixing column penetrates through the second mounting hole.
Further, in some embodiments of the present application, the first wire fixing member and the second wire fixing member are respectively provided with a bump, the bump is used for extruding and fixing the wire, and the inner wall of the threading hole is provided with a groove matched with the bump.
Further, in some embodiments of the present application, the threading hole is arranged in a stepped extending manner;
the first thread fixing piece is used for being in extrusion fit with a first stepped plane in the threading hole, and the second thread fixing piece is used for being in extrusion fit with a second stepped plane in the threading hole.
Further, in some embodiments of the present application, a third wire fixing member is disposed in the main body, and the third wire fixing member is movably connected to the first wire fixing member;
the third wire fixing piece is used for extruding and fixing the wires in a third direction with the stepped vertical face of the threading hole.
Further, in some embodiments of the present application, the third wire fixing member includes a fixing plate and a fixing rod rotatably connected to the fixing plate;
the first wire fixing piece is radially penetrated and provided with a connecting hole, and the fixing rod is in threaded connection with the connecting hole;
the connecting hole is parallel to the threading hole, the distance from the connecting hole to the extrusion end of the first wire fixing piece is L1, the length of the threading hole in the first direction is L2, and L1 is less than 0.5L2, so that after the first wire fixing piece extrudes and fixes a wire, the connecting hole moves into the threading hole.
Further, in some embodiments of the present application, the first stepped plane extends to an outlet end of the threading aperture.
According to the technical scheme, the wire clamping device has the advantages that:
the utility model provides a card line ware, card line ware has first solidus spare and second solidus spare, first mounting and second solidus spare can extrude the wire respectively fixedly, before the wire is taut, make card line ware and wire realize fixed connection, the extrusion fixed direction of first solidus spare and second solidus spare is parallel or crossing, make the different positions of wire be fixed respectively, increase the fixed strength of wire, first solidus spare and second solidus spare swing joint main part, for the card line ware of current many connecting rod clamp structure, the framework is simple, it is more convenient to process.
Drawings
The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the application and together with the description, serve to explain the principles of the application.
In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings that are required to be used in the description of the embodiments or the prior art will be briefly described below, and it will be obvious to those skilled in the art that other drawings can be obtained from these drawings without inventive effort.
Fig. 1 is a schematic diagram showing a structure of a wire clamp according to an exemplary embodiment.
Fig. 2 is another perspective schematic diagram of a wire clamp according to an exemplary embodiment.
Fig. 3 is a cross-sectional view taken along the direction A-A in fig. 2.
Wherein reference numerals are as follows:
100. a main body portion; 200. a first wire fixing member; 300. a second wire fixing member; 400. a third wire fixing member; 500. a pull ring; 600. a wire; 110. a threading hole; 120. a first step plane; 130. a second stepped plane; 140. a third step elevation; 150. a first groove; 160. a second groove; 210. a first fixing column; 211. a first bump; 220. a first adjustment nut; 230. a connection hole; 310. a second fixing column; 311. a second bump; 320. a second adjustment nut; 410. a fixed rod; 420. and a fixing plate.
Detailed Description
For the purposes of making the objects, technical solutions and advantages of the embodiments of the present application more clear, the technical solutions of 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 apparent that the described embodiments are some embodiments of the present application, but not all embodiments. All other embodiments, which can be made by one of ordinary skill in the art without undue burden from the present disclosure, are within the scope of the present application based on the embodiments herein.
The electric wire is an important device for guaranteeing power transportation, the electric wire needs to be tensioned and wired in the construction process, and tension is applied to the electric wire through the tightener. The wire tightener is connected with the electric wire through the wire clamping device, and the wire clamping device is a common wire holding tool used in construction and maintenance of electric power, telecommunication and railway electrified overhead lines and is suitable for overhead power line construction.
The wire clamping device commonly used in the market at present adopts a multi-link mechanism to clamp the wire, has complex structure and complex processing, can convert partial tension into extrusion force to the wire in the use process of the wire clamping device, and is easy to cause the phenomenon that the wire is loosened and separated due to insufficient clamping force at the wire clamping part of the wire clamping device under the condition of small tensioning force at the initial stage of tensioning.
In order to solve the technical problems that an existing wire clamping device adopts a multi-connecting-rod clamping structure, so that the structure is complex, machining is complicated and the clamping force is insufficient, the main purpose of the application is to provide the wire clamping device, the wire clamping device is provided with a first wire fixing piece 200 and a second wire fixing piece 300, the first fixing piece and the second wire fixing piece 300 can respectively extrude and fix a wire 600, before the wire 600 is tensioned, the wire clamping device and the wire 600 are fixedly connected, the extrusion and fixing directions of the first wire fixing piece 200 and the second wire fixing piece 300 are parallel or intersected, different parts of the wire 600 are respectively fixed in a threading hole 110, the fixing strength of the wire 600 is increased, the first wire fixing piece 200 and the second wire fixing piece 300 are movably connected with a main body part 100, and compared with the wire clamping device of the existing multi-connecting-rod clamping structure, the structure is simple in structure and more convenient to machine.
Fig. 1 is a schematic structural view of a wire clip according to an exemplary embodiment, fig. 2 is another schematic view of a wire clip according to an exemplary embodiment, and fig. 3 is a sectional view in A-A direction of fig. 2.
Referring to fig. 1-3, the present application provides a wire clamping device, which includes a main body 100, a first wire fixing member 200, a second wire fixing member 300, and a pull ring 500.
The main body 100 is in a columnar structure, the main body 100 is provided with a threading hole 110, the threading hole 110 is penetrated along the length direction of the main body 100, the first wire fixing piece 200 and the second wire fixing piece 300 are respectively movably mounted on the main body 100, specifically, the first wire fixing piece 200 is movably mounted on the main body 100 in the first direction, the second wire fixing piece 300 is movably mounted on the main body 100 in the second direction, the first wire fixing piece 200 can extend into the threading hole 110 in the first direction and extrude the fixed wire 600 with the inner wall of the threading hole 110, and the second wire fixing piece 300 can extend into the threading hole 110 in the second direction and extrude the fixed wire 600 with the inner wall of the threading hole 110.
The first direction and the second direction may be parallel or intersect, and the first direction and the second direction are perpendicular to the extending direction of the threading hole 110, respectively.
In this embodiment, the cross-sectional shape of the threading hole 110 is rectangular.
The main body part 100 is provided with a first mounting hole and a second mounting hole, the first mounting hole and the second mounting hole are respectively communicated with the threading hole 110, the first wire fixing piece 200 comprises a first fixing column 210 and a first adjusting nut 220, and the second wire fixing piece 300 comprises a second adjusting nut 320 of a second fixing column 310.
The first adjusting nut 220 is rotatably mounted at the outer end of the first mounting hole, the second adjusting nut 320 is rotatably mounted at the outer end of the second mounting hole, specifically, the outer end of the first mounting hole and the outer end of the second mounting hole of the main body part 100 can be provided with sliding grooves, the sliding grooves are dovetail grooves or T-shaped grooves, the dovetail grooves or T-shaped grooves are annularly arranged around the mounting hole, the first adjusting nut 220 and the second adjusting nut 320 can be respectively provided with sliding blocks, and the sliding blocks are in sliding fit with the sliding grooves to realize the rotation of the adjusting nuts and limit the separation of the adjusting nuts and the main body part 100.
The first fixing post 210 is screwed to the first adjusting nut 220, the diameter of the first fixing post 210 is smaller than or equal to the diameter of the first installation hole, and the first fixing post 210 can be inserted into or removed from the threading hole 110 by rotating the first adjusting nut 220.
The second fixing post 310 is screwed to the second adjusting nut 320, the diameter of the first fixing post 210 is smaller than or equal to the diameter of the second installation hole, and the second fixing post 310 can be inserted into or removed from the threading hole 110 by rotating the second adjusting nut 320.
As shown in fig. 3, the first fixing post 210 and the second fixing post 310 are disposed in parallel, the first fixing post 210 may press the wire 600 in a first direction, and the second fixing post 310 may press the wire 600 in a second direction, and the first direction and the second direction are parallel.
In this application scheme, the inner wall of through wires hole 110 corresponds first fixed column 210 and is provided with first recess 150, the extrusion end of first fixed column 210 is provided with first lug 211 with first recess 150 complex, the inner wall of through wires hole 110 corresponds second fixed column 310 and is provided with second recess 160, the extrusion end of second fixed column 310 is provided with the lug with second recess 160 complex, when wire 600 is fixed, buckle in to first recess 150 and second recess 160 through first lug 211 and second lug 311, make wire 600 form multistage bending state in through wires hole 110, the area of contact when first solidus piece 200 and second solidus piece 300 are fixed to wire 600 extrusion respectively has been increased simultaneously, improve wire 600 fixed stability.
The threading hole 110 is in a step-shaped extending arrangement, a first step plane 120, a second step plane 130 and a step elevation are arranged in the threading hole 110, wherein the step elevation is positioned between the first step plane 120 and the second step plane 130, and the step elevation is respectively connected with the first step plane 120 and the second step plane 130.
The first fixing post 210 is used for being in press fit with the first stepped plane 120 in the threading hole 110, the second fixing post 310 is used for being in press fit with the second stepped plane 130 in the threading hole 110, the notch of the first groove 150 is located on the first stepped plane 120, and the notch of the second groove 160 is located on the second stepped plane 130.
In this embodiment, the first step plane 120 extends to the outlet end of the threading hole 110, the second step plane 130 extends to the inlet end of the threading hole 110, and the step elevation faces the outlet end of the threading hole 110. The wire 600 extends in a stepped shape in the threading hole 110, and when the wire 600 is pulled at the inlet side of the threading hole 110, the stepped elevation can also have a certain resistance to the wire 600, so that the fixing stability of the wire 600 is improved.
In this application scheme, in order to improve the effect of ladder facade, further fix wire 600, be equipped with third solidus spare 400 in the main part 100, third solidus spare 400 swing joint first fixed column 210, third solidus spare 400 are used for with the ladder facade of through wires hole 110 to wire 600 extrusion fixed in the third direction. The third direction is perpendicular to the first direction and the second direction, respectively.
The third wire fixing member 400 includes a fixing plate 420 and a fixing rod 410 rotatably connected to the fixing plate 420, wherein an inner hexagonal groove is formed at one end of the fixing rod 410 away from the fixing plate 420, the first fixing column 210 radially penetrates through the connecting hole 230, the length direction of the connecting hole 230 is parallel to the length direction of the threading hole 110, and the fixing rod 410 is in threaded connection with the connecting hole 230.
After the first fixing post 210 extrudes the wire 600, the connection hole 230 moves into the threading hole 110, one end of the fixing rod 410 provided with the inner hexagonal groove faces the outlet side of the threading hole 110, when the wire 600 is used, a hexagonal wrench can be adopted to extend into the threading hole 110 from the outlet side of the threading hole 110, the hexagonal wrench is matched with the inner hexagonal groove of the fixing rod 410, and the hexagonal wrench is rotated to enable the fixing rod 410 to move in the connection hole 230 towards the stepped elevation, so that the fixing plate 420 is driven to move towards the stepped elevation, and the fixing plate 420 extrudes and fixes the wire 600.
According to the size of the threading hole 110 and the size of the conventional wire 600, in this application, the distance from the extrusion end of the connecting hole 230 to the first fixing post 200 is L1, and the length of the threading hole 110 in the first direction is L2, it can be understood that the first direction is the axial direction of the first fixing post 210, L1<0.5L2, and when the thickness of the wire 600 is <0.5L2, after the first fixing post 200 extrudes the fixing wire 600, the connecting hole 230 of the first fixing post 210 can be moved into the threading hole 110, so that the third fixing piece can be adjusted through the outlet side of the threading hole 110.
In summary, this application scheme provides a fastener, the fastener has first solid line piece 200 and second solid line piece 300, first mounting and second solid line piece 300 can extrude fixedly to wire 600 respectively, before wire 600 is taut, make fastener and wire 600 realize fixed connection, the extrusion fixed direction of first solid line piece 200 and second solid line piece 300 is parallel or crossing, make the different positions of wire 600 be fixed respectively, increase the fixed strength of wire 600, first solid line piece 200 and second solid line piece 300 swing joint main part 100, for the fastener of current many connecting rod clamp structure, the framework is simple, it is more convenient to process, set up the through wires hole 110 into echelonment extension, set up third solid line piece 400 on first solid line piece 200 simultaneously, make first solid line piece 200, second solid line piece 300 and third solid line piece 400 extrude fixedly to wire 600 from three direction respectively, improve the fixed stability of wire 600, avoid wire 600 to deviate from the fastener from.
It should be noted that in this document, relational terms such as "first" and "second" and the like are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Moreover, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising one … …" does not exclude the presence of other like elements in a process, method, article, or apparatus that comprises the element.
The foregoing is merely a specific embodiment of the application to enable one skilled in the art to understand or practice the application. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the application. Thus, the present application is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.
Claims (7)
1. The wire clamping device is characterized by comprising a main body part (100), a first wire fixing piece (200) and a second wire fixing piece (300);
the main body part (100) is provided with a threading hole (110), the first wire fixing piece (200) is movably mounted on the main body part (100) in a first direction, and the second wire fixing piece (300) is movably mounted on the main body part (100) in a second direction;
the first wire fixing piece (200) is used for extruding a fixed wire (600) with the inner wall of the threading hole (110) in a first direction, the second wire fixing piece (300) is used for extruding the fixed wire (600) with the inner wall of the threading hole (110) in a second direction, and the first direction is parallel to or intersected with the second direction;
the threading hole (110) is arranged in a stepped extending way;
the first thread fixing piece (200) is used for being in extrusion fit with a first stepped plane (120) in the threading hole (110), and the second thread fixing piece (300) is used for being in extrusion fit with a second stepped plane (130) in the threading hole (110);
a third wire fixing piece (400) is arranged in the main body part (100), and the third wire fixing piece (400) is movably connected with the first wire fixing piece (200);
the third wire fixing piece (400) is used for extruding and fixing the wire (600) in a third direction with the stepped elevation of the threading hole (110);
the third wire fixing piece (400) comprises a fixing plate (420) and a fixing rod (410) rotatably connected with the fixing plate (420);
the first wire fixing piece (200) is radially penetrated with a connecting hole (230), and the fixing rod (410) is in threaded connection with the connecting hole (230); the connecting hole (230) is parallel to the threading hole (110), the distance from the connecting hole (230) to the extrusion end of the first wire fixing piece (200) is L1, the length of the threading hole (110) in the first direction is L2, and L1 is less than 0.5L2, so that after the first wire fixing piece (200) extrudes the fixed wire (600), the connecting hole (230) moves into the threading hole (110).
2. The wire clamp according to claim 1, characterized in that the first wire fixing member (200) comprises a first fixing post (210) and a first adjusting nut (220);
the first fixing column (210) is in threaded connection with the first adjusting nut (220), the first adjusting nut (220) is rotatably installed on the main body portion (100), and the first adjusting nut (220) enables the first fixing column (210) to extend into and extend out of the threading hole (110) through rotation.
3. The wire clip according to claim 2, wherein the main body portion (100) is provided with a first mounting hole communicating with the threading hole (110), the first adjusting nut (220) is rotatably mounted on an outer end side of the first mounting hole, and the first fixing post (210) is penetrated through the first mounting hole.
4. The wire clamp according to claim 1, wherein the second wire fixing member (300) comprises a second fixing post (310) and a second adjusting nut (320);
the second fixing column (310) is in threaded connection with the second adjusting nut (320), the second adjusting nut (320) is rotatably installed on the main body portion (100), and the second adjusting nut (320) enables the second fixing column (310) to extend into and extend out of the threading hole (110) through rotation.
5. The wire clip according to claim 4, wherein the main body portion (100) is provided with a second mounting hole communicating with the threading hole (110), the second adjusting nut (320) is rotatably mounted on an outer end side of the second mounting hole, and the second fixing post (310) is penetrated through the second mounting hole.
6. The wire clamp according to any one of claims 1-5, wherein the first wire fixing member (200) and the second wire fixing member (300) are respectively provided with a bump, the bump is used for pressing a fixed wire (600), and the inner wall of the threading hole (110) is provided with a groove matched with the bump.
7. The thread clamp according to claim 1, wherein the first stepped plane (120) extends to an outlet end of the threading aperture (110).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210878973.XA CN115189313B (en) | 2022-07-25 | 2022-07-25 | Wire clamping device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210878973.XA CN115189313B (en) | 2022-07-25 | 2022-07-25 | Wire clamping device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN115189313A CN115189313A (en) | 2022-10-14 |
| CN115189313B true CN115189313B (en) | 2024-02-02 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210878973.XA Active CN115189313B (en) | 2022-07-25 | 2022-07-25 | Wire clamping device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN115189313B (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20050071863A (en) * | 2004-01-05 | 2005-07-08 | 양희성 | A |
| KR100660624B1 (en) * | 2006-10-17 | 2006-12-22 | 주식회사 시상엔지니어링건축사사무소 | Connection clamp of an electric power distribution line |
| CN203398354U (en) * | 2013-08-08 | 2014-01-15 | 马鞍山市华能电力线路器材有限责任公司 | Parallel groove clamp structure with snake-shaped through groove |
| CN211507943U (en) * | 2020-03-04 | 2020-09-15 | 中山市顺誉电力科技有限公司 | Connecting device for equipment line transition |
| CN212257144U (en) * | 2020-07-17 | 2020-12-29 | 广东贝斯特电气有限公司 | High-voltage transformer lead-out wire structure |
-
2022
- 2022-07-25 CN CN202210878973.XA patent/CN115189313B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20050071863A (en) * | 2004-01-05 | 2005-07-08 | 양희성 | A |
| KR100660624B1 (en) * | 2006-10-17 | 2006-12-22 | 주식회사 시상엔지니어링건축사사무소 | Connection clamp of an electric power distribution line |
| CN203398354U (en) * | 2013-08-08 | 2014-01-15 | 马鞍山市华能电力线路器材有限责任公司 | Parallel groove clamp structure with snake-shaped through groove |
| CN211507943U (en) * | 2020-03-04 | 2020-09-15 | 中山市顺誉电力科技有限公司 | Connecting device for equipment line transition |
| CN212257144U (en) * | 2020-07-17 | 2020-12-29 | 广东贝斯特电气有限公司 | High-voltage transformer lead-out wire structure |
Also Published As
| Publication number | Publication date |
|---|---|
| CN115189313A (en) | 2022-10-14 |
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