CN112038795B - Bypass cable end for distribution line ground potential live working - Google Patents
Bypass cable end for distribution line ground potential live working Download PDFInfo
- Publication number
- CN112038795B CN112038795B CN202011018562.0A CN202011018562A CN112038795B CN 112038795 B CN112038795 B CN 112038795B CN 202011018562 A CN202011018562 A CN 202011018562A CN 112038795 B CN112038795 B CN 112038795B
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- Prior art keywords
- groove
- guide
- ground potential
- wall
- distribution line
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- Expired - Fee Related
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- 238000007789 sealing Methods 0.000 claims description 10
- 235000017166 Bambusa arundinacea Nutrition 0.000 claims description 9
- 235000017491 Bambusa tulda Nutrition 0.000 claims description 9
- 241001330002 Bambuseae Species 0.000 claims description 9
- 235000015334 Phyllostachys viridis Nutrition 0.000 claims description 9
- 239000011425 bamboo Substances 0.000 claims description 9
- 238000001125 extrusion Methods 0.000 claims description 6
- 239000002184 metal Substances 0.000 claims description 6
- 238000003780 insertion Methods 0.000 description 6
- 230000037431 insertion Effects 0.000 description 6
- 238000010586 diagram Methods 0.000 description 3
- 238000013459 approach Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000012423 maintenance Methods 0.000 description 2
- 238000012360 testing method Methods 0.000 description 2
- 230000007547 defect Effects 0.000 description 1
- 238000007689 inspection Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
Images
Classifications
-
- 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
- H01R11/11—End pieces or tapping pieces for wires, supported by the wire and for facilitating electrical connection to some other wire, terminal or conductive member
- H01R11/12—End pieces terminating in an eye, hook, or fork
-
- 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
- H01R4/48—Clamped connections, spring connections utilising a spring, clip, or other resilient member
- H01R4/4809—Clamped connections, spring connections utilising a spring, clip, or other resilient member using a leaf spring to bias the conductor toward the busbar
- H01R4/48185—Clamped connections, spring connections utilising a spring, clip, or other resilient member using a leaf spring to bias the conductor toward the busbar adapted for axial insertion of a wire end
-
- 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
- H01R4/48—Clamped connections, spring connections utilising a spring, clip, or other resilient member
- H01R4/4854—Clamped connections, spring connections utilising a spring, clip, or other resilient member using a wire spring
- H01R4/4863—Coil spring
Landscapes
- Cable Accessories (AREA)
Abstract
The invention belongs to the technical field of cable ends, and particularly relates to a bypass cable end for distribution line ground potential live working, which aims at solving the problems that the existing cable end is inconvenient to use and connect, the connecting part of a cable and the end does not have a protection function, and the service life is shortened. The invention has simple structure and convenient operation, is convenient for using and connecting the cable, can protect the connecting part of the cable and the electric connecting piece and prolongs the service life.
Description
Technical Field
The invention relates to the technical field of cable terminals, in particular to a bypass cable terminal for distribution line ground potential live working.
Background
Live working refers to a working method for overhauling and testing high-voltage electrical equipment without power cut. Electrical equipment requires frequent testing, inspection and maintenance over long periods of operation. Live working is an effective measure for avoiding maintenance and power failure and ensuring normal power supply, and a cable end is used as an end for switching a cable.
The existing cable end is inconvenient to use and connect, does not have a protection function on the connecting part of the cable and the end, and reduces the service life.
Disclosure of Invention
The invention aims to solve the defects that the existing cable end is inconvenient to use and connect, does not have a protection function on the connecting part of a cable and the end, and reduces the service life, and provides a bypass cable end for ground potential live working of a distribution line.
In order to achieve the purpose, the invention adopts the following technical scheme:
a bypass cable end for distribution line ground potential live working comprises a joint barrel, wherein one side of the joint barrel is fixedly connected with a power connection piece, an elliptical connecting hole is formed in the power connection piece, two elastic structures are fixedly arranged on the inner wall of the joint barrel, the same conductive head is fixedly connected onto the two elastic structures, one end of a conducting wire is connected onto the conductive head, the other end of the conducting wire is connected with the power connection piece, two sliding grooves are symmetrically formed in the inner wall of the joint barrel, two sliding blocks are respectively and slidably arranged in the two sliding grooves, a connecting rod is fixedly arranged on one side, close to each other, of the two sliding blocks, the same wire connecting barrel is fixedly connected between the two connecting rods, two metal elastic pieces are symmetrically arranged on the inner wall of the wire connecting barrel, two guide structures are symmetrically arranged on the inner wall of the joint barrel, arc-shaped extrusion plates are fixedly arranged on the two guide structures, and one end of an inclined rod is rotatably connected onto the two guide structures, the other end of two down tube rotates with two connecting rods respectively to be connected, the helicla flute has been seted up to the rim of a joint section of thick bamboo position, helicla flute female connection has the screw ring, the right side fixed mounting of screw ring has the turning ring, the central point of turning ring puts and has seted up the through-hole, it is connected with the sealing washer to rotate on the inner wall of through-hole, two slide openings have been seted up to the symmetry on the inner wall of a joint section of thick bamboo, equal slidable mounting has the slide opening piece in two slide openings, the bottom of two slide opening pieces all rotates the one end that is connected with the distance rod, the other end of distance rod rotates with the guide structure who corresponds to be connected, the equal fixed mounting in top of two slide opening pieces has to support the contact, two are supported the contact and all are located the helicla flute.
Preferably, the elastic structure comprises a supporting block, a spring and a buffer rod, the supporting block is fixedly installed on the inner wall of the joint barrel, the buffer groove is formed in the right side of the supporting block, the buffer rod is connected with the buffer groove in a sliding mode, and the spring is fixedly installed between the buffer rod and the buffer groove.
Preferably, the guide structure comprises a guide rod, a guide block and a tension spring, the guide rod is fixedly installed on the inner wall of the joint cylinder, a guide groove is formed in one end of the guide block, the guide rod is connected with the guide groove in a sliding mode, and the tension spring is fixedly installed between the guide rod and the guide groove.
Preferably, the inclined rod is rotatably connected with the guide block, and the thrust rod is rotatably connected with the guide block.
Preferably, the outer side of the joint barrel is fixedly provided with two locking sheets, and the two locking sheets and the connecting sheet are connected with two locking bolts.
Preferably, the right side of the power connection piece is provided with an insertion groove, the wire is movably connected with the insertion groove, the outer side of the power connection piece is in threaded connection with an insulating bolt, and one end of the insulating bolt extends into the insertion groove and is in contact with the wire.
Preferably, the right side of the conductive head is provided with a conductive groove, one end of the wiring cylinder is arranged in an arc shape, and the wiring cylinder is matched with the conductive groove.
Preferably, an annular groove is formed in the inner wall of the through hole, an annular strip is rotatably connected in the annular groove, and the annular strip and the outer side of the sealing ring are fixedly installed.
Preferably, the spiral groove is of an annular structure, a first thread is formed in the inner wall of the spiral groove, a second thread is formed in the outer side of the threaded ring, and the first thread is in threaded connection with the second thread.
Preferably, the inner wall of the arc-shaped extrusion plate is fixedly provided with an anti-skid pad.
Compared with the prior art, the invention has the advantages that:
(1) according to the scheme, a cable penetrates through the through hole and the sealing ring to enter the joint cylinder, so that the joint of the cable enters the wiring cylinder and is contacted with the cable through the metal elastic sheet, the sealing ring is sleeved on the outer side of the cable to fix the cable, the threaded ring is driven to enter the spiral groove by rotating and twisting, the threaded ring extrudes the two abutting contacts to move, meanwhile, the guide block pushes the connecting rod and the wiring cylinder to move through the inclined rod, the wiring cylinder is close to the conductive head and enters the conductive groove, the cable can be conducted with the electric connecting piece, the spring provides elasticity for the conductive head, the conductive head can be tightly attached to the wiring cylinder, and the conductive effect can be improved;
(2) the two abutting contacts respectively push the two thrust rods to move through the two sliding hole blocks, the thrust rods push the guide blocks to move, the guide blocks slide on the guide rods and are close to the cable, and the guide blocks push the corresponding arc-shaped extrusion plates to extrude and fix the outer skins of the cable.
The invention has simple structure and convenient operation, is convenient for using and connecting the cable, can protect the connecting part of the cable and the electric connecting piece and prolongs the service life.
Drawings
Fig. 1 is a schematic structural diagram of a bypass cable terminal for distribution line ground potential live working according to the present invention;
fig. 2 is a schematic cross-sectional view of a bypass cable terminal for distribution line ground potential live working according to the present invention;
fig. 3 is a schematic structural diagram of a part a of a bypass cable terminal for distribution line ground potential live working according to the present invention;
fig. 4 is a schematic structural diagram of part B of a bypass cable termination for distribution line ground potential live working according to the present invention;
fig. 5 is a schematic side view of the guide rod, the guide block, the arc-shaped pressing plate and the non-slip mat of the bypass cable end for distribution line ground potential live working according to the present invention.
In the figure: 1. a joint barrel; 2. a locking piece; 3. locking the bolt; 4. inserting grooves; 5. a wire; 6. an insulating bolt; 7. connecting a power strip; 8. an elliptical connection hole; 9. a support block; 10. a spring; 11. a buffer rod; 12. a conductive head; 13. a conductive slot; 14. a chute; 15. a slider; 16. a connecting rod; 17. a diagonal bar; 18. a wire connecting cylinder; 19. a metal spring sheet; 20. an arc-shaped extrusion plate; 21. a helical groove; 22. a threaded ring; 23. abutting against the contact; 24. a slide hole; 25. a slide hole block; 26. a thrust rod; 27. a guide bar; 28. a guide block; 29. a tension spring; 30. a guide groove; 31. twisting the ring; 32. a through hole; 33. a seal ring; 34. an annular groove; 35. an annular strip; 36. a non-slip mat.
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.
Referring to fig. 1-5, a bypass cable end for distribution line ground potential live working comprises a joint barrel 1, one side of the joint barrel 1 is fixedly connected with an electric connecting piece 7, the electric connecting piece 7 is provided with an elliptical connecting hole 8, the inner wall of the joint barrel 1 is fixedly provided with two elastic structures, the two elastic structures are fixedly connected with a same conductive head 12, the conductive head 12 is connected with one end of a lead 5, the other end of the lead 5 is connected with the electric connecting piece 7, the inner wall of the joint barrel 1 is symmetrically provided with two sliding grooves 14, two sliding blocks 15 are respectively and slidably arranged in the two sliding grooves 14, one sides of the two sliding blocks 15 close to each other are fixedly provided with connecting rods 16, a same joint barrel 18 is fixedly connected between the two connecting rods 16, the inner wall of the joint barrel 18 is symmetrically provided with two metal elastic sheets 19, and the inner wall of the joint barrel 1 is symmetrically provided with two guide structures, equal fixed mounting has arc stripper plate 20 on two guide structure, all rotate the one end that is connected with down tube 17 on two guide structure, the other end of two down tube 17 rotates with two connecting rods 16 respectively and is connected, spiral groove 21 has been seted up to the limit mouth position of a joint section of thick bamboo 1, spiral groove 21 female connection has screw ring 22, screw ring 22's right side fixed mounting has wrench ring 31, wrench ring 31's central point puts and has seted up through-hole 32, it is connected with sealing washer 33 to rotate on the inner wall of through-hole 32, two slide openings 24 have been seted up to the symmetry on the inner wall of a joint section of thick bamboo 1, equal slidable mounting has slide opening piece 25 in two slide openings 24, the one end that is connected with thrust rod 26 is all rotated to the bottom of two slide opening pieces 25, the other end of thrust rod 26 rotates with the guide structure who corresponds to be connected, the equal fixed mounting in top of two slide opening pieces 25 has support contact 23, two support contact 23 all are located spiral groove 21.
In this embodiment, the elastic structure includes a supporting block 9, a spring 10 and a buffer rod 11, the supporting block 9 is fixedly mounted on the inner wall of the joint barrel 1, the buffer slot is opened on the right side of the supporting block 9, the buffer rod 11 is slidably connected with the buffer slot, and the spring 10 is fixedly mounted between the buffer rod 11 and the buffer slot.
In this embodiment, the guide structure includes a guide bar 27, a guide block 28 and a tension spring 29, the guide bar 27 is fixedly installed on the inner wall of the joint barrel 1, a guide groove 30 is opened at one end of the guide block 28, the guide bar 27 is slidably connected with the guide groove 30, and the tension spring 29 is fixedly installed between the guide bar 27 and the guide groove 30.
In this embodiment, the diagonal bar 17 is rotatably connected to the guide block 28, and the thrust bar 26 is rotatably connected to the guide block 28.
In this embodiment, the outer side of the joint barrel 1 is fixedly provided with two locking pieces 2, the two locking pieces 2 and the electric connecting piece 7 are connected with two locking bolts 3, and the electric connecting piece 7 can be detached.
In the embodiment, the right side of the electric connecting piece 7 is provided with the insertion groove 4, the lead 5 is movably connected with the insertion groove 4, the outer side of the electric connecting piece 7 is in threaded connection with the insulating bolt 6, and one end of the insulating bolt 6 extends into the insertion groove 4 and is in contact with the lead 5.
In this embodiment, the right side of the conductive head 12 is provided with a conductive groove 13, one end of the wire connecting cylinder 18 is arranged in an arc shape, and the wire connecting cylinder 18 is matched with the conductive groove 13.
In this embodiment, an annular groove 34 is formed in the inner wall of the through hole 32, an annular strip 35 is rotatably connected to the annular groove 34, and the annular strip 35 is fixedly mounted on the outer side of the sealing ring 33.
In this embodiment, the spiral groove 21 is an annular structure, the inner wall of the spiral groove 21 is provided with a first thread, the outer side of the threaded ring 22 is provided with a second thread, and the first thread is in threaded connection with the second thread.
In this embodiment, the inner wall of the arc-shaped pressing plate 20 is fixedly provided with a non-slip mat 36, and the non-slip mat 36 can play a non-slip role.
In this embodiment, when in use, a cable penetrates through the through hole 32 and the sealing ring 33 and enters the joint barrel 1, so that the joint of the cable enters the connecting barrel 18 and contacts with the cable through the metal elastic sheet 19, the sealing ring 33 is sleeved outside the cable to fix the cable, the twisting ring 31 is rotated, the twisting ring 31 drives the threaded ring 22 to enter the spiral groove 21, the threaded ring 22 extrudes the two abutting contacts 23 to move, the two abutting contacts 23 respectively push the two thrust rods 26 to move through the two sliding hole blocks 25, the thrust rods 26 push the guide block 28 to move, the guide block 28 slides on the guide rod 27 and approaches the cable, the guide block 28 pushes the corresponding arc-shaped extrusion plate 20 to extrude and fix the outer skin of the cable, meanwhile, the guide block 28 pushes the connecting rod 16 and the connecting barrel 18 to move through the inclined rod 17, the connecting barrel 18 approaches the conductive head 12 and enters the conductive groove 13, so as to conduct the cable and the connecting piece 7, the spring 10 provides elastic force for the conductive head 12, so that the conductive head 12 can be tightly attached to the wire connecting cylinder 18, and the conductive effect can be improved.
The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be considered to be within the technical scope of the present invention, and the technical solutions and the inventive concepts thereof according to the present invention should be equivalent or changed within the scope of the present invention.
Claims (10)
1. The utility model provides a bypass cable end for distribution lines ground potential live working usefulness, includes a joint section of thick bamboo (1), and one side fixedly connected with of a joint section of thick bamboo (1) connects electric piece (7), has seted up oval connecting hole (8) on connecting electric piece (7), its characterized in that, fixedly mounted has two elasticity structures on the inner wall of a joint section of thick bamboo (1), and two elasticity structural fixedly connected with are same conductive head (12), are connected with the one end of wire (5) on conductive head (12), and the other end of wire (5) is connected with connects electric piece (7), and two spouts (14) have been seted up to the symmetry on the inner wall of a joint section of thick bamboo (1), and slidable mounting has a slider (15) respectively in two spouts (14), and equal fixed mounting in the one side that two sliders (15) are close to each other has connecting rod (16), and fixedly connected with is a same wiring section of thick bamboo (18) between two connecting rods (16), two metal elastic sheets (19) are symmetrically arranged on the inner wall of the connecting cylinder (18), two guide structures are symmetrically arranged on the inner wall of the joint cylinder (1), arc-shaped extrusion plates (20) are fixedly arranged on the two guide structures, one ends of oblique rods (17) are rotatably connected on the two guide structures, the other ends of the two oblique rods (17) are respectively rotatably connected with two connecting rods (16), a spiral groove (21) is formed in the edge opening position of the joint cylinder (1), a threaded ring (22) is in threaded connection with the spiral groove (21), a twisting ring (31) is fixedly arranged on the right side of the threaded ring (22), a through hole (32) is formed in the center position of the twisting ring (31), a sealing ring (33) is rotatably connected on the inner wall of the through hole (32), two sliding holes (24) are symmetrically formed in the inner wall of the joint cylinder (1), and sliding hole blocks (25) are respectively and slidably arranged in the two sliding holes (24), the bottom of two slide hole blocks (25) all rotates the one end that is connected with thrust rod (26), and the other end of thrust rod (26) rotates with the guide structure who corresponds and is connected, and the equal fixed mounting in top of two slide hole blocks (25) has to support contact (23), and two are supported contact (23) and all are located helicla flute (21).
2. The end of the bypass cable for distribution line ground potential hot-line work according to claim 1, wherein the elastic structure comprises a supporting block (9), a spring (10) and a buffer rod (11), the supporting block (9) is fixedly installed on the inner wall of the joint barrel (1), the right side of the supporting block (9) is provided with a buffer groove, the buffer rod (11) is slidably connected with the buffer groove, and the spring (10) is fixedly installed between the buffer rod (11) and the buffer groove.
3. The bypass cable termination for distribution line ground potential hot-line work according to claim 1, wherein the guide structure comprises a guide rod (27), a guide block (28) and a tension spring (29), the guide rod (27) is fixedly installed on the inner wall of the joint barrel (1), one end of the guide block (28) is provided with a guide groove (30), the guide rod (27) is slidably connected with the guide groove (30), and the tension spring (29) is fixedly installed between the guide rod (27) and the guide groove (30).
4. The bypass cable termination for distribution line ground potential hot-line work according to claim 1, characterized in that the diagonal lever (17) is pivotally connected to the guide block (28) and the thrust lever (26) is pivotally connected to the guide block (28).
5. The bypass cable end for distribution line ground potential live working according to claim 1, characterized in that two locking pieces (2) are fixedly installed on the outer side of the joint barrel (1), and two locking bolts (3) are connected to the two locking pieces (2) and the electric connecting piece (7).
6. The end of the bypass cable for distribution line ground potential live working according to claim 1, wherein a plug-in groove (4) is formed in the right side of the electric connecting piece (7), the lead (5) is movably connected with the plug-in groove (4), an insulating bolt (6) is in threaded connection with the outer side of the electric connecting piece (7), and one end of the insulating bolt (6) extends into the plug-in groove (4) and is in contact with the lead (5).
7. The end of the bypass cable for the distribution line ground potential hot-line work according to claim 1, characterized in that a conductive groove (13) is formed in the right side of the conductive head (12), one end of the connecting cylinder (18) is arranged in an arc shape, and the connecting cylinder (18) is matched with the conductive groove (13).
8. The bypass cable termination for distribution line ground potential hot-line work according to claim 1, wherein an annular groove (34) is formed in the inner wall of the through hole (32), an annular strip (35) is rotatably connected to the annular groove (34), and the annular strip (35) is fixedly mounted on the outer side of the sealing ring (33).
9. The bypass cable termination for distribution line ground potential live working according to claim 1, wherein the spiral groove (21) is of an annular structure, a first thread is formed on an inner wall of the spiral groove (21), a second thread is formed on an outer side of the threaded ring (22), and the first thread is in threaded connection with the second thread.
10. The bypass cable termination for distribution line ground potential hot-line work according to claim 1, characterized in that the inner wall of the arc-shaped pressing plate (20) is fixedly provided with a non-slip mat (36).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011018562.0A CN112038795B (en) | 2020-09-24 | 2020-09-24 | Bypass cable end for distribution line ground potential live working |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011018562.0A CN112038795B (en) | 2020-09-24 | 2020-09-24 | Bypass cable end for distribution line ground potential live working |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN112038795A CN112038795A (en) | 2020-12-04 |
| CN112038795B true CN112038795B (en) | 2022-04-08 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202011018562.0A Expired - Fee Related CN112038795B (en) | 2020-09-24 | 2020-09-24 | Bypass cable end for distribution line ground potential live working |
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| CN (1) | CN112038795B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114421235B (en) * | 2022-03-28 | 2022-07-05 | 武汉中科海讯电子科技有限公司 | Automatic butt joint and release device for towing cables |
| CN117394052B (en) * | 2023-12-11 | 2024-03-15 | 广东环威电线电缆股份有限公司 | Cable binding post who facilitates connection |
Citations (5)
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| CN206685662U (en) * | 2017-04-03 | 2017-11-28 | 河南省森电电力设备股份有限公司 | A kind of energy-economic transformer portable Wiring port |
| CN108206394A (en) * | 2017-12-07 | 2018-06-26 | 广州市迪越网络科技有限公司 | A kind of modified big data equipment |
| CN110932205A (en) * | 2019-12-30 | 2020-03-27 | 国网山东省电力公司烟台供电公司 | Butt-joint type wire fixing frame for eliminating heating defect of cable head in electrified mode |
| CN210326991U (en) * | 2019-07-22 | 2020-04-14 | 广东电网有限责任公司 | Power cable intermediate head sealing device |
| CN210685961U (en) * | 2019-09-23 | 2020-06-05 | 山东省煤田地质规划勘察研究院 | Underground power supply device for underground charging method |
-
2020
- 2020-09-24 CN CN202011018562.0A patent/CN112038795B/en not_active Expired - Fee Related
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN206685662U (en) * | 2017-04-03 | 2017-11-28 | 河南省森电电力设备股份有限公司 | A kind of energy-economic transformer portable Wiring port |
| CN108206394A (en) * | 2017-12-07 | 2018-06-26 | 广州市迪越网络科技有限公司 | A kind of modified big data equipment |
| CN210326991U (en) * | 2019-07-22 | 2020-04-14 | 广东电网有限责任公司 | Power cable intermediate head sealing device |
| CN210685961U (en) * | 2019-09-23 | 2020-06-05 | 山东省煤田地质规划勘察研究院 | Underground power supply device for underground charging method |
| CN110932205A (en) * | 2019-12-30 | 2020-03-27 | 国网山东省电力公司烟台供电公司 | Butt-joint type wire fixing frame for eliminating heating defect of cable head in electrified mode |
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| CN112038795A (en) | 2020-12-04 |
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Effective date of registration: 20210604 Address after: 264000 Jiefang Road 158, Zhifu District, Yantai, Shandong Applicant after: State Grid Shandong Electric Power Company Yantai Power Supply Co. Address before: 264000 Jiefang Road 158, Zhifu District, Yantai, Shandong Applicant before: State Grid Shandong Electric Power Company Yantai Power Supply Co. Applicant before: STATE GRID CORPORATION OF CHINA |
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