CN211728966U - Foreign matter prevention wrench for disassembling and assembling power cable end - Google Patents
Foreign matter prevention wrench for disassembling and assembling power cable end Download PDFInfo
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- CN211728966U CN211728966U CN201922388896.6U CN201922388896U CN211728966U CN 211728966 U CN211728966 U CN 211728966U CN 201922388896 U CN201922388896 U CN 201922388896U CN 211728966 U CN211728966 U CN 211728966U
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Abstract
The utility model belongs to the technical field of nuclear power station electrical maintenance, concretely relates to prevent foreign matter spanner for power cable end dismouting, prevent that foreign matter spanner includes: the device comprises an insulating handle, an L-shaped handle, a hexagonal hole, a magnetic block and an insulating outer layer; the middle part of the foreign matter prevention wrench is an L-shaped handle, one end of the L-shaped handle is fixed with an insulating handle, the other end of the L-shaped handle is provided with a hexagonal hole, and a magnetic block is arranged on the hexagonal hole; the insulating outer layer is wrapped on the outer surface of the L-shaped handle. The utility model provides a safe protection against electric shock is effectual, and from taking the magnetic force piece, can hold the bolt, effectively prevents to dismantle the bolt of in-process and drops, produces the foreign matter.
Description
Technical Field
The utility model belongs to the technical field of the nuclear power station electrical maintenance, concretely relates to prevent foreign matter spanner for power cable end dismouting.
Background
A large amount of interim cables need to terminate during certain nuclear power plant unit overhaul, about 40 many at every turn of overhaul, and about 30 groups of wherein 400V power supply drawer switch termination, cable laying total length is nearly 3000 meters, has following problem among the current dismouting process: the upper and lower cable intervals are electrified and cannot be completely isolated, and the problem that part of the terminal protective sleeve falls off exists. The interval is narrow between the cable, and the interval between cable and the cable is very little, dismantles and all need stretch into the cable termination with the hand after, fixes the nut of terminal with a spanner earlier, then with another spanner with the nut not hard up or fasten, because the space is narrow and small, operating personnel can't apply completely and open the arm hard, and partial terminal bolt is great, can't accomplish whole work alone, touch other electrified cables or terminals if misoperation is extremely possible. The existing detachable insulated wrench has a short handle, so that an operator cannot exert force, and a hand rope for preventing foreign matters from falling cannot be installed on the handle, so that the risk that the detached nut easily falls to form foreign matters to cause short circuits of other electrified bodies exists.
Therefore, in view of the above existing problems, it is urgently needed to research and design a foreign object prevention wrench for power cable end disassembly and assembly so as to improve the operating efficiency of power cable end disassembly and assembly, shorten the termination time of temporary cables, reduce the working strength of terminated cables, and effectively avoid the risks of personnel electric shock and foreign object drop.
Disclosure of Invention
The utility model aims at the not enough of above-mentioned prior art, provide a prevent foreign matter spanner for power cable end dismouting to solve current dismouting spanner handle short excessively, do not have and prevent that the foreign matter sets up the structure and lead to that power cable end dismouting work degree of difficulty is big, the high technical problem of risk.
The technical scheme of the utility model:
the utility model provides a prevent foreign matter spanner for power cable end dismouting, prevent that foreign matter spanner 7 includes: the device comprises an insulating handle 1, an L-shaped handle 2, a hexagonal hole 3, a magnetic block 4 and an insulating outer layer 5; the middle part of the foreign matter prevention wrench 7 is provided with an L-shaped handle 2, one end of the L-shaped handle 2 is fixed with an insulating handle 1, the other end of the L-shaped handle 2 is provided with a hexagonal hole 3, and the hexagonal hole 3 is provided with a magnetic block 4; the insulating outer layer 5 is wrapped on the outer surface of the L-shaped handle 2.
The overall size of the magnetic block 4 is matched with that of the hexagonal hole 3.
The utility model has the advantages that:
1. in the prior art, the spanner is manually wrapped by an electrical insulating tape, the utility model provides a foreign matter prevention spanner for disassembling and assembling a power cable end, which is wrapped by an integral insulating layer, and has better safety and electric shock prevention effects;
2. the utility model provides a foreign matter prevention wrench for power cable end disassembly, which is provided with a magnetic block, can suck the bolt, and effectively prevents the bolt in the disassembly process from falling to generate foreign matters;
3. the utility model provides a prevent foreign matter spanner labour saving and time saving for power cable end dismouting, raise the efficiency, originally dismantle a set of 4X 120's cable need 50-60 minutes, and use the utility model discloses the instrument only needs 20-30 minutes.
4. The utility model discloses it is narrow and small more to be applicable to working space, the equipment that ordinary instrument can't be operated, for example female compact big drawer switch bolt of arranging of three-phase is installed and removed etc..
Drawings
Fig. 1 is a schematic structural view of a foreign-body-proof wrench for disassembling and assembling a power cable end according to the present invention;
fig. 2 is a schematic view illustrating the installation of a foreign object prevention wrench for disassembling and assembling a power cable end according to the present invention;
in the figure: 1-an insulated handle; 2-L-shaped handle; 3-hexagonal hole; 4-a magnetic block; 5-an insulating outer layer; 6-cable connection means; 7-foreign body prevention spanner; 8-connecting bolts; 9-cable connection device connection terminals; 10-a cable; 11-cable lug.
Detailed Description
The invention will be further described with reference to the following drawings and examples:
the utility model provides a prevent foreign matter spanner for power cable end dismouting, prevent that foreign matter spanner 7 includes: the device comprises an insulating handle 1, an L-shaped handle 2, a hexagonal hole 3, a magnetic block 4 and an insulating outer layer 5; the middle part of the foreign matter prevention wrench 7 is provided with an L-shaped handle 2, one end of the L-shaped handle 2 is fixed with an insulating handle 1, the other end of the L-shaped handle 2 is provided with a hexagonal hole 3, and the hexagonal hole 3 is provided with a magnetic block 4; the insulating outer layer 5 is wrapped on the outer surface of the L-shaped handle 2.
The overall size of the magnetic block 4 is matched with that of the hexagonal hole 3.
The following description is made with reference to the following embodiments for the operation method of the present invention for disassembling and assembling the cable:
when the cable is disassembled:
1. placing a power cable end connection foreign matter prevention wrench 7 at the head of a switch cabinet connecting bolt 8 for fixing;
2. placing the insulating spanner at the nut, and forcibly loosening the nut;
3. taking down the nut and the gasket;
4. the connecting bolt 8 is removed.
When the cable is installed:
1. the connecting bolt 8 sequentially penetrates through the output terminal 9 of the cable connecting device and the cable connection lug 11;
2. mounting the nut of the connecting bolt 8 together with the washer to the connecting bolt 8;
3. placing a power cable end foreign body prevention spanner 7 on a connecting bolt head 8 for fixing;
4. the insulating spanner is placed at the nut, and the connecting bolt 8 is fastened.
Claims (2)
1. The utility model provides a prevent foreign matter spanner for power cable end dismouting which characterized in that: the foreign-body prevention wrench (7) comprises: the device comprises an insulating handle (1), an L-shaped handle (2), a hexagonal hole (3), a magnetic block (4) and an insulating outer layer (5); the middle part of the foreign matter prevention wrench (7) is provided with an L-shaped handle (2), one end of the L-shaped handle (2) is fixed with an insulating handle (1), the other end of the L-shaped handle (2) is provided with a hexagonal hole (3), and a magnetic block (4) is arranged on the hexagonal hole (3); the insulating outer layer (5) is wrapped on the outer surface of the L-shaped handle (2).
2. The anti-foreign object wrench for disassembling and assembling the power cable end according to claim 1, wherein: the overall size of the magnetic block (4) is matched with the hexagonal hole (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922388896.6U CN211728966U (en) | 2019-12-27 | 2019-12-27 | Foreign matter prevention wrench for disassembling and assembling power cable end |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922388896.6U CN211728966U (en) | 2019-12-27 | 2019-12-27 | Foreign matter prevention wrench for disassembling and assembling power cable end |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211728966U true CN211728966U (en) | 2020-10-23 |
Family
ID=72871001
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201922388896.6U Active CN211728966U (en) | 2019-12-27 | 2019-12-27 | Foreign matter prevention wrench for disassembling and assembling power cable end |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211728966U (en) |
-
2019
- 2019-12-27 CN CN201922388896.6U patent/CN211728966U/en active Active
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