CN111509424A - Equipment wire clamp - Google Patents
Equipment wire clamp Download PDFInfo
- Publication number
- CN111509424A CN111509424A CN202010287899.5A CN202010287899A CN111509424A CN 111509424 A CN111509424 A CN 111509424A CN 202010287899 A CN202010287899 A CN 202010287899A CN 111509424 A CN111509424 A CN 111509424A
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- China
- Prior art keywords
- connecting sleeve
- adjusting frame
- screw
- sliding
- outer part
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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- 230000002146 bilateral effect Effects 0.000 claims 2
- 238000009413 insulation Methods 0.000 abstract description 4
- 230000003245 working effect Effects 0.000 abstract description 3
- 230000002349 favourable effect Effects 0.000 abstract description 2
- 230000001737 promoting effect Effects 0.000 abstract description 2
- 230000000694 effects Effects 0.000 description 2
- 210000001503 joint Anatomy 0.000 description 2
- 230000000149 penetrating effect Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000005457 optimization Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Images
Classifications
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
- H01R11/00—Individual connecting elements providing two or more spaced connecting locations for conductive members which are, or may be, thereby interconnected, e.g. end pieces for wires or cables supported by the wire or cable and having means for facilitating electrical connection to some other wire, terminal, or conductive member, blocks of binding posts
- H01R11/01—Individual connecting elements providing two or more spaced connecting locations for conductive members which are, or may be, thereby interconnected, e.g. end pieces for wires or cables supported by the wire or cable and having means for facilitating electrical connection to some other wire, terminal, or conductive member, blocks of binding posts characterised by the form or arrangement of the conductive interconnection between the connecting locations
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
- H01R11/00—Individual connecting elements providing two or more spaced connecting locations for conductive members which are, or may be, thereby interconnected, e.g. end pieces for wires or cables supported by the wire or cable and having means for facilitating electrical connection to some other wire, terminal, or conductive member, blocks of binding posts
- H01R11/03—Individual connecting elements providing two or more spaced connecting locations for conductive members which are, or may be, thereby interconnected, e.g. end pieces for wires or cables supported by the wire or cable and having means for facilitating electrical connection to some other wire, terminal, or conductive member, blocks of binding posts characterised by the relationship between the connecting locations
- H01R11/05—Individual connecting elements providing two or more spaced connecting locations for conductive members which are, or may be, thereby interconnected, e.g. end pieces for wires or cables supported by the wire or cable and having means for facilitating electrical connection to some other wire, terminal, or conductive member, blocks of binding posts characterised by the relationship between the connecting locations the connecting locations having different types of direct connections
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
- H01R4/00—Electrically-conductive connections between two or more conductive members in direct contact, i.e. touching one another; Means for effecting or maintaining such contact; Electrically-conductive connections having two or more spaced connecting locations for conductors and using contact members penetrating insulation
- H01R4/28—Clamped connections, spring connections
- H01R4/30—Clamped connections, spring connections utilising a screw or nut clamping member
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- Clamps And Clips (AREA)
Abstract
The invention discloses an equipment cable clamp which comprises a bottom supporting plate, wherein a connecting sleeve is fixedly arranged at the upper end of the outer part of the bottom supporting plate, an extension plate is fixedly connected with the inner side of the outer part of the bottom supporting plate, a telescopic adjusting frame is movably arranged on the outer part of the extension plate, a butt gasket is fixedly arranged at the upper end position of the outer part of a fastening bolt, a sliding groove is transversely formed in the side position of the outer part of the telescopic adjusting frame, a fastening screw sleeve is movably arranged on the sliding groove through a sliding screw, an assembling clamping groove is formed in the inner side position of the outer part of the telescopic adjusting frame, and a positioning assembling screw hole is formed in the side position of the upper end of. This equipment fastener has add the insulating lasso that can the idol promote certain safety in utilization through the unchangeable overall structure of original user mode, effectively carries out comprehensive stable insulation protection to holistic use, is favorable to promoting holistic result of use and working property, reduces holistic use risk.
Description
Technical Field
The invention relates to the technical field of equipment wire clamps, in particular to an equipment wire clamp.
Background
The equipment fastener is generally used for the bus to draw down the line and be connected with the terminal that goes out of the line of electrical equipment such as transformer, circuit breaker, mutual-inductor, isolator, wall bushing, is a comparatively common electrical equipment appurtenance.
However, existing equipment wire clamps on the existing market mostly have the single and simple overall structure, insulation protection is general, safety in utilization in practical application use work has certain restriction, so that holistic result of use and working property receive the influence of certain degree, and because the influence of whole self structure, concrete user demand in can not using the work according to practical application carries out appropriate regulation to holistic use length, make whole use functional correspondence in normal use work receive the restriction of great degree, lead to whole suitability general, the narrower shortcoming of application scope.
Disclosure of Invention
The invention aims to provide an equipment wire clamp, which solves the problems that the overall structure is simple, the insulation protection is general, the use safety in practical application and use work is limited to a certain extent, the overall use effect and the working performance are influenced to a certain extent, and the overall use length cannot be properly adjusted according to the specific use requirements in practical application and use work due to the influence of the overall structure, so that the overall use functionality in normal use and work is correspondingly limited to a greater extent, the overall applicability is general, and the application range is narrow.
In order to achieve the purpose, the invention provides the following technical scheme: an equipment wire clamp comprises a bottom supporting plate, wherein a connecting sleeve is fixedly installed at the upper outer end of the bottom supporting plate, an extending plate is fixedly connected to the inner outer side of the bottom supporting plate, an insulating ferrule is fixedly installed at the bottom position outside the connecting sleeve, a connecting ring is fixedly installed at the upper end position outside the connecting sleeve, connecting threads are carved in the connecting sleeve, a fastening bolt is movably installed at the upper inner end of the connecting sleeve, a sliding screw rod is fixedly installed at the inner side position of the outer side of the extending plate, a telescopic adjusting frame is movably installed outside the extending plate, a butt joint gasket is fixedly installed at the upper end position outside the fastening bolt, a sliding groove is transversely formed in the side position outside the telescopic adjusting frame, the sliding screw rod penetrates through the sliding groove and is movably installed with a fastening screw sleeve, and an assembling clamping groove is formed in the inner side position outside the telescopic adjusting frame, and a positioning and assembling screw hole is formed in the side position of the upper end of the inner side of the outer part of the telescopic adjusting frame.
Preferably, the connecting sleeve is integrally in a hollow cylindrical structure with connecting threads engraved inside the outer upper end of the support bottom support plate, the connecting sleeve is symmetrically and fixedly installed at equal intervals at the upper end of the support bottom support plate and has the same specification, the extension plate and the support bottom support plate are connected in a seamless mode, and meanwhile the outer specification of the extension plate and the inner specification of the telescopic adjusting frame are matched correspondingly.
Preferably, the bottom of the outer portion of the connecting sleeve of the insulating ferrule is of an annular structure which is in seamless connection with the bottom of the outer portion of the connecting sleeve, the insulating ferrule is made of rubber, the inner diameter size of the insulating ferrule is matched with the outer diameter size of the connecting sleeve correspondingly, the inner diameter size of the connecting ring is matched with the outer diameter size of the connecting sleeve correspondingly, and the connecting ring is in seamless connection with the connecting sleeve at the upper end of the outer portion of the connecting ring.
Preferably, the external diameter of the fastening bolt corresponds to the external thread specification and the internal diameter of the connecting sleeve corresponds to the specification of the connecting thread engraved in the interior, the sliding screw is symmetrically and fixedly mounted with two sliding screws with the same specification on two sides of the extending plate, the external diameter of the sliding screw corresponds to the width of the sliding groove, and the sliding groove is symmetrically and transversely provided with two sliding grooves with the same specification on two sides of the telescopic adjusting frame.
Preferably, the inner diameter of the fastening screw sleeve corresponds to the inner thread specification, the outer diameter of the sliding screw rod corresponds to the outer thread specification, the assembling clamping groove is of a groove structure with an outer portion not sealed by a side edge on the inner side of the outer portion of the telescopic adjusting frame, and four same specifications are symmetrically arranged on two side positions of the positioning assembling screw hole on the inner side of the outer portion of the telescopic adjusting frame and two side positions of the lower end of the inner portion of the assembling clamping groove.
Preferably, the butt gasket is connected with the fastening bolts in a seamless mode at the upper ends of the outer portions of the fastening bolts, the butt gasket is identical in specification, and the inner diameter size of the butt gasket is matched with the outer diameter size of the fastening bolts correspondingly.
Compared with the prior art, the invention has the beneficial effects that: this equipment fastener, the problem that combines prior art to exist carries out great degree optimization improvement to overall structure, the insulating lasso that can the idol promote certain safety in utilization has been add on the overall structure that is unchangeable through original user mode, effectively carry out comprehensive stable insulation protection to holistic use, be favorable to promoting holistic result of use and working property, reduce holistic use risk, and through set up the slide mechanism that can carry out suitable regulation according to the in-service use concrete use demand in the link, whole service function in normal use work has effectively been richened, whole application scope has effectively been enlarged on the basis that has promoted whole comprehensive service performance.
Drawings
FIG. 1 is a schematic view of the overall structure of the present invention;
FIG. 2 is a schematic view of the split structure of the present invention;
FIG. 3 is a schematic view of the telescopic connection structure of the present invention;
fig. 4 is a schematic view of the threaded connection of the present invention.
In the figure: 1. a bottom support plate; 2. connecting a sleeve; 3. an extension plate; 4. an insulating ferrule; 5. a connecting ring; 6. connecting threads; 7. fastening a bolt; 8. a sliding screw; 9. a telescoping adjustment frame; 10. butting the gaskets; 11. a sliding groove; 12. fastening a threaded sleeve; 13. assembling a clamp groove; 14. and positioning and assembling the screw hole.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to fig. 1-4, the present invention provides a technical solution: an equipment wire clamp comprises a bottom supporting plate 1, a connecting sleeve 2, an extension plate 3, an insulating sleeve ring 4, a connecting ring 5, a connecting thread 6, a fastening bolt 7, a sliding screw 8, a telescopic adjusting frame 9, a butt joint gasket 10, a sliding groove 11, a fastening screw sleeve 12, an assembling clamp groove 13 and a positioning assembling screw hole 14, wherein the connecting sleeve 2 is fixedly arranged at the upper end of the outer part of the bottom supporting plate 1, the extension plate 3 is fixedly connected to the inner side of the outer part of the bottom supporting plate 1, the insulating sleeve ring 4 is fixedly arranged at the bottom position of the outer part of the connecting sleeve 2, the connecting ring 5 is fixedly arranged at the upper end position of the outer part of the connecting sleeve 2, the connecting thread 6 is carved in the inner part of the connecting sleeve 2, the fastening bolt 7 is movably arranged at the upper end of the inner part of the connecting sleeve 2, the sliding screw 8 is fixedly arranged at the, a butt gasket 10 is fixedly installed at the upper end position outside the fastening bolt 7, a sliding groove 11 is transversely formed in the side position outside the telescopic adjusting frame 9, a fastening threaded sleeve 12 is movably installed by the sliding screw 8 penetrating through the sliding groove 11, an assembling clamping groove 13 is formed in the inner side position outside the telescopic adjusting frame 9, and a positioning assembling screw hole 14 is formed in the side position of the upper end of the inner side outside the telescopic adjusting frame 9;
further, the whole hollow cylinder structure that is equipped with connecting thread 6 for inside carving in the outside upper end of support bottom support plate 1 of connecting sleeve 2, connecting sleeve 2 is in the equidistant fixed mounting of the upper end symmetry of support bottom support plate 1 to the specification is the same, extends mutual seamless connection between board 3 and the support bottom support plate 1, and the outside specification of extension board 3 corresponds each other between the inside specification of the flexible frame 9 of adjusting simultaneously and coincide.
Furthermore, the bottom of the insulating ferrule 4 outside the connecting sleeve 2 is of an annular structure which is in seamless connection with the insulating ferrule 4, the insulating ferrule 4 is made of rubber, the inner diameter of the insulating ferrule 4 is matched with the outer diameter of the connecting sleeve 2 correspondingly, the inner diameter of the connecting ring 5 is matched with the outer diameter of the connecting sleeve 2 correspondingly, and the connecting ring is in seamless connection with the connecting sleeve at the upper end of the outside of the insulating ferrule, so that the reasonable stability of the whole structure in practical application and use is ensured to a greater extent, and the use stability of the whole structure is correspondingly improved;
furthermore, the external diameter of the fastening bolt 7 and the external thread specification and the internal diameter of the connecting sleeve 2 and the specification of the connecting thread 6 engraved inside are matched with each other correspondingly, two sliding screws 8 with the same specification are symmetrically and fixedly arranged on two sides of the outside of the extension plate 3, the external diameter of the sliding screw 8 and the width of the sliding groove 11 are matched with each other correspondingly, two sliding grooves 11 with the same specification are symmetrically and transversely arranged on two sides of the outside of the telescopic adjusting frame 9, the length of the whole wire clamp can be conveniently and properly adjusted according to specific use requirements in the actual application and use process, and the use effect and the working performance of the whole wire clamp are effectively improved;
furthermore, the inner diameter of the fastening screw sleeve 12 is correspondingly matched with the inner thread specification, the outer diameter of the sliding screw 8 and the outer thread specification, the assembling clamping groove 13 is of a groove structure with an outer edge being not sealed at the outer inner side of the telescopic adjusting frame 9, four positioning assembling screw holes 14 are symmetrically formed in the positions of two sides of the outer inner side of the telescopic adjusting frame 9 and the positions of two sides of the inner lower end of the assembling clamping groove 13, and the using functionality of the whole body in normal use work is effectively enriched;
furthermore, the butt gasket 10 is in seamless connection with the fastening bolts 7 at the upper outer end of each fastening bolt, and has the same specification, and the inner diameter of the butt gasket 10 is matched with the outer diameter of the fastening bolts 7, so that the overall structural stability is improved on the basis of realizing stable assembly, and the overall application range is effectively expanded on the basis of improving the overall comprehensive use performance.
The working principle is as follows: the wire clamp has no great difference with the use mode of the traditional wire clamp, and is characterized in that a designated wire is clamped by using a fastening bolt 7 through the corresponding coincidence between the external specification of the fastening bolt and the internal specification of a connecting thread 6 carved in a connecting sleeve 2, an insulating ferrule 4 can protect the designated wire to a certain degree at the external bottom position of the connecting sleeve 2, stable assembly and connection work is carried out by using an assembly clamping groove 13 formed in the external part of a telescopic adjusting frame 9 and a designated connecting end and penetrating through a positioning assembly screw hole 14 through an external adaption bolt, the use length of the whole wire clamp can be properly adjusted by using the sliding connection relation between a sliding screw 8 and a sliding groove 11 according to the specific use requirement in the practical use work, and the adjusted whole wire clamp can be stably fixed by using the corresponding coincidence relation between the external specification of the sliding screw 8 and the internal specification of a fastening screw sleeve 12, effectively expands the whole application range on the basis of improving the whole comprehensive use performance.
Finally, it should be noted that the above-mentioned contents are only used for illustrating the technical solutions of the present invention, and not for limiting the protection scope of the present invention, and that the simple modifications or equivalent substitutions of the technical solutions of the present invention by those of ordinary skill in the art can be made without departing from the spirit and scope of the technical solutions of the present invention.
Claims (6)
1. The utility model provides an equipment fastener, includes holds in the palm end support plate (1), its characterized in that: the outer upper end of the supporting bottom support plate (1) is fixedly provided with a connecting sleeve (2), the outer inner side of the supporting bottom support plate (1) is fixedly connected with an extension plate (3), the outer bottom of the connecting sleeve (2) is fixedly provided with an insulating ferrule (4), the outer upper end of the connecting sleeve (2) is fixedly provided with a connecting ring (5), the inner part of the connecting sleeve (2) is carved with a connecting thread (6), the inner upper end of the connecting sleeve (2) is movably provided with a fastening bolt (7), the inner side of the outer side of the extension plate (3) is fixedly provided with a sliding screw (8), the outer part of the extension plate (3) is movably provided with a telescopic adjusting frame (9), the outer upper end of the fastening bolt (7) is fixedly provided with a butt gasket (10), and the outer side of the telescopic adjusting frame (9) is transversely provided with a sliding groove (11), sliding screw (8) pass sliding tray (11) movable mounting and have fastening swivel nut (12), assembly clamping groove (13) have been seted up to the outside inboard position of flexible adjusting frame (9), positioning assembly screw (14) have been seted up to the avris position of the outside inboard upper end of flexible adjusting frame (9).
2. An equipment clamp according to claim 1, wherein: the connecting sleeve (2) is integrally in a hollow cylindrical structure with connecting threads (6) engraved in the upper end outside the support bottom support plate (1), the connecting sleeve (2) is symmetrically and fixedly installed at equal intervals at the upper end of the support bottom support plate (1) and has the same specification, the extension plate (3) is in seamless connection with the support bottom support plate (1), and the external specification of the extension plate (3) is matched with the internal specification of the telescopic adjusting frame (9) in a corresponding mode.
3. An equipment clamp according to claim 1, wherein: the bottom of the outer part of the connecting sleeve (2) of the insulating ferrule (4) is of an annular structure which is in seamless connection with the connecting sleeve, the insulating ferrule (4) is made of rubber, the inner diameter of the insulating ferrule (4) is matched with the outer diameter of the connecting sleeve (2) correspondingly, the inner diameter of the connecting ring (5) is matched with the outer diameter of the connecting sleeve (2) correspondingly, and the insulating ferrule and the connecting sleeve are in seamless connection with each other at the upper end of the outer part of the connecting ring.
4. An equipment clamp according to claim 1, wherein: the external diameter size of fastening bolt (7) and the internal diameter size of outside screw thread specification and connecting sleeve (2) are carved with the inside specification of establishing connecting thread (6) and are corresponded anastomosing each other, sliding screw (8) have two that the specification is the same at the outside bilateral symmetry fixed mounting of extension board (3), and sliding screw (8)'s external diameter size and the inslot width size of sliding tray (11) correspond anastomosing each other, sliding tray (11) are transversely seted up two that the specification is the same at the outside bilateral symmetry of flexible adjusting frame (9).
5. An equipment clamp according to claim 1, wherein: the inner diameter of the fastening screw sleeve (12) corresponds to the inner thread specification, the outer diameter of the sliding screw rod (8) corresponds to the outer thread specification, the assembling clamping groove (13) is of a groove structure with an outer portion not sealed by a side edge at the inner side of the outer portion of the telescopic adjusting frame (9), and four positioning assembling screw holes (14) are symmetrically formed in the positions of the two sides of the inner side of the outer portion of the telescopic adjusting frame (9) and the positions of the two sides of the inner lower end of the assembling clamping groove (13) and have the same specification.
6. An equipment clamp according to claim 1, wherein: the butt gasket (10) is in seamless connection with the fastening bolts (7) at the upper ends of the outer parts of the fastening bolts, the specifications of the butt gasket are the same, and the inner diameter size of the butt gasket (10) is matched with the outer diameter size of the fastening bolts (7) correspondingly.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010287899.5A CN111509424B (en) | 2020-04-14 | 2020-04-14 | Equipment wire clamp |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010287899.5A CN111509424B (en) | 2020-04-14 | 2020-04-14 | Equipment wire clamp |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN111509424A true CN111509424A (en) | 2020-08-07 |
| CN111509424B CN111509424B (en) | 2021-10-08 |
Family
ID=71872626
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010287899.5A Active CN111509424B (en) | 2020-04-14 | 2020-04-14 | Equipment wire clamp |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN111509424B (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112636297A (en) * | 2020-12-10 | 2021-04-09 | 江西俊朗电力装备有限公司 | Rapid connecting device and connecting method of cable branch box |
| CN114171943A (en) * | 2021-11-17 | 2022-03-11 | 广西电网有限责任公司南宁供电局 | Multiform wire termination |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3423724A (en) * | 1966-07-25 | 1969-01-21 | Ite Circuit Breaker Ltd | Terminal means |
| KR101333839B1 (en) * | 2013-01-18 | 2013-11-27 | 윌로펌프 주식회사 | Terminal block, motor using the same and pump with the motor |
| CH709660A2 (en) * | 2014-05-15 | 2015-11-30 | Zurecon Ag | Busbar. |
| CN207704889U (en) * | 2018-01-25 | 2018-08-07 | 贤阳汇聚金属科技（苏州）有限公司 | A kind of safe confluence piece |
| CN108429024A (en) * | 2018-03-23 | 2018-08-21 | 江苏巴斯威节能科技有限公司 | A kind of novel bus interface arrangement |
-
2020
- 2020-04-14 CN CN202010287899.5A patent/CN111509424B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3423724A (en) * | 1966-07-25 | 1969-01-21 | Ite Circuit Breaker Ltd | Terminal means |
| KR101333839B1 (en) * | 2013-01-18 | 2013-11-27 | 윌로펌프 주식회사 | Terminal block, motor using the same and pump with the motor |
| CH709660A2 (en) * | 2014-05-15 | 2015-11-30 | Zurecon Ag | Busbar. |
| CN207704889U (en) * | 2018-01-25 | 2018-08-07 | 贤阳汇聚金属科技（苏州）有限公司 | A kind of safe confluence piece |
| CN108429024A (en) * | 2018-03-23 | 2018-08-21 | 江苏巴斯威节能科技有限公司 | A kind of novel bus interface arrangement |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112636297A (en) * | 2020-12-10 | 2021-04-09 | 江西俊朗电力装备有限公司 | Rapid connecting device and connecting method of cable branch box |
| CN112636297B (en) * | 2020-12-10 | 2022-04-29 | 江西俊朗电力装备有限公司 | A kind of quick connection device of cable branch box and connection method thereof |
| CN114171943A (en) * | 2021-11-17 | 2022-03-11 | 广西电网有限责任公司南宁供电局 | Multiform wire termination |
| CN114171943B (en) * | 2021-11-17 | 2023-08-11 | 广西电网有限责任公司南宁供电局 | Multi-form wire connection device |
Also Published As
| Publication number | Publication date |
|---|---|
| CN111509424B (en) | 2021-10-08 |
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