CN111496725A - Adjustment wrench for overhauling - Google Patents
Adjustment wrench for overhauling Download PDFInfo
- Publication number
- CN111496725A CN111496725A CN202010489381.XA CN202010489381A CN111496725A CN 111496725 A CN111496725 A CN 111496725A CN 202010489381 A CN202010489381 A CN 202010489381A CN 111496725 A CN111496725 A CN 111496725A
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- gear
- transmission
- assembly
- insulating
- wrench
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- 230000007246 mechanism Effects 0.000 claims abstract description 84
- 230000005540 biological transmission Effects 0.000 claims abstract description 76
- 238000012423 maintenance Methods 0.000 claims description 10
- 239000007787 solid Substances 0.000 claims description 8
- 239000011810 insulating material Substances 0.000 claims description 4
- 238000009413 insulation Methods 0.000 claims description 2
- 238000000034 method Methods 0.000 claims description 2
- 210000004907 gland Anatomy 0.000 abstract description 8
- 239000004020 conductor Substances 0.000 description 8
- 230000006835 compression Effects 0.000 description 7
- 238000007906 compression Methods 0.000 description 7
- 230000005611 electricity Effects 0.000 description 6
- 230000008859 change Effects 0.000 description 3
- 230000002159 abnormal effect Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 239000004593 Epoxy Substances 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000005520 electrodynamics Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000011152 fibreglass Substances 0.000 description 1
- 230000008569 process Effects 0.000 description 1
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
- B25B—TOOLS OR BENCH DEVICES NOT OTHERWISE PROVIDED FOR, FOR FASTENING, CONNECTING, DISENGAGING OR HOLDING
- B25B17/00—Hand-driven gear-operated wrenches or screwdrivers
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Electric Cable Installation (AREA)
Abstract
The application discloses overhaul is with adjustment spanner, include: the driving mechanism, the transmission mechanism connected with the driving mechanism, the positioning mechanism and the insulating mechanism; the transmission mechanism includes: the transmission shaft is axially connected with the driving mechanism, and the transmission assembly is connected with the transmission shaft; the positioning mechanism includes: a sleeve and a gear assembly for changing the sleeve angle; the gear assembly is connected with the transmission assembly, and the sleeve is detachably connected with the gear assembly and used for fastening a nut; the insulating mechanism includes: the insulating tube surrounds the outer side of the transmission shaft, and the insulating cover is arranged outside the transmission assembly; the driving mechanism drives the transmission mechanism to move, and the transmission mechanism drives the positioning mechanism to rotate. The device enables an operator to quickly loosen or tighten the gland nut of the element on the wire, and the gland nut is separated from a field operation power supply, so that the size of the tool is reduced, the safety performance is high, the quality of the device is small, and the working efficiency is improved.
Description
Technical Field
The present disclosure generally relates to the technical field of power equipment overhaul tools, and particularly relates to an adjusting wrench for overhaul.
Background
When the 10kV insulated overhead conductor runs, the conductor can generate a self-twisting phenomenon due to abnormal electrodynamic action, construction process and the like and is difficult to restore, a lightning protection electricity testing ring, an arc protection hardware fitting, an electricity testing ring, an arc leading ball clamp, an arc preventing clamp, a special wire clamp connected with an L Ti-10 intelligent lightning protection device and the like on the conductor are difficult to restore along with the twisting of the conductor, the lightning protection effect is influenced after the conductor is twisted to a certain angle, the electricity testing ring and the lightning protection electricity testing ring are hung on a ground wire, the service life of the conductor is shortened due to abnormal torque, elements such as the lightning protection electricity testing ring, the arc preventing ring, the electricity testing ring, the arc leading ball clamp, the arc preventing clamp and the special wire clamp connected with the L Ti-10 intelligent lightning protection device and the conductor need to restore through adjustment, an operator needs to climb a rod to use a wrench to operate during adjustment, but the wrench is heavy, the operation time is long, the power failure operation mode needs to spend a lot of power failure time, the safety risk is increased, and the labor intensity of the operator is high, and the labor intensity of the operator needs to be reduced without stopping.
Disclosure of Invention
In view of the above-mentioned deficiencies or inadequacies of the prior art, it would be desirable to provide an adjustment wrench for service.
An adjustment wrench for maintenance comprising: the driving mechanism, the transmission mechanism connected with the driving mechanism, the positioning mechanism and the insulating mechanism; the transmission mechanism includes: the transmission shaft is axially connected with the driving mechanism, and the transmission assembly is connected with the transmission shaft; the positioning mechanism includes: a sleeve and a gear assembly for changing the sleeve angle; the gear assembly is connected with the transmission assembly, and the sleeve is detachably connected with the gear assembly and used for fastening a nut; the insulating mechanism includes: the insulating tube surrounds the outer side of the transmission shaft, and the insulating cover is arranged outside the transmission assembly; the driving mechanism drives the transmission mechanism to move, and the transmission mechanism drives the positioning mechanism to rotate.
According to the technical scheme provided by the embodiment of the application, the gear assembly comprises: a first gear set connected with the sleeve and a second gear set connected with the transmission assembly; the first gear set includes: the gear transmission mechanism comprises a first gear bracket, a first gear arranged on the first gear bracket and a solid shaft connected with the first gear; the second gear set includes: the second gear bracket and a second gear arranged on the second gear bracket; the first gear bracket is connected with the second gear bracket and has an included angle, and the first gear is meshed with the second gear; the solid shaft is connected with the sleeve, and the first gear set drives the sleeve to rotate.
According to the technical scheme provided by the embodiment of the application, the transmission assembly comprises: the fixed bracket is connected with the insulating tube and the driving mechanism, the third gear and the fourth gear are connected with the transmission shaft;
the third gear and the fourth gear are both arranged on a fixed support, a bearing assembly is arranged on the fixed support, and the second gear support is connected with the fixed support; the third gear is vertically arranged on the fourth gear and meshed with the fourth gear; the transmission shaft drives the fourth gear to rotate, and the third gear drives the second gear to rotate through the bearing assembly.
According to the technical scheme provided by the embodiment of the application, the driving mechanism comprises: the driving wrench comprises a driving wrench, an angle turning device connected with the driving wrench and a driving connecting piece used for connecting the driving wrench and the angle turning device; the corner device is connected with the transmission shaft and used for changing the transmission direction.
According to the technical scheme provided by the embodiment of the application, the bearing assembly comprises: the second bearing is arranged on the second gear, the third bearing is arranged on the third gear, the fourth bearing is arranged on the fourth gear, and the connecting shaft is arranged between the second bearing and the third bearing in a spanning mode; one end of the connecting shaft is connected with the third gear, the other end of the connecting shaft is connected with the second gear, and the second gear and the third gear synchronously rotate through the connecting shaft.
According to the technical scheme provided by the embodiment of the application, the insulation mechanism further comprises: the first insulating shell is arranged on the driving spanner, and the second insulating shell is arranged on the corner device; and an insulating plate is also arranged on the insulating cover.
According to the technical scheme provided by the embodiment of the application, the transmission shaft is further provided with a first bearing.
According to the technical scheme provided by the embodiment of the application, the driving wrench is a rechargeable ratchet wrench, and the corner device is a large-torque corner device.
According to the technical scheme provided by the embodiment of the application, the first gear bracket and the second gear bracket are connected through screws.
According to the technical scheme provided by the embodiment of the application, the transmission shaft and the connecting shaft are made of insulating materials.
In summary, according to the technical scheme of the application, the driving mechanism, the positioning mechanism and the transmission mechanism are arranged, so that the driving mechanism drives the transmission mechanism to enable the sleeve on the positioning mechanism to adjust the compression nut, and the working efficiency is improved; when the device is used, firstly, an on-site lead needs to be observed and measured through the existing measuring device, the size, the specific position and the corresponding angle of the gland nut needing to be operated are obtained, then the angle of the gear assembly is adjusted and fixed, and then the sleeve is fixed on the gear assembly. An operator climbs a pole and then selects a station, lifts the device, enables the sleeve to be buckled on a needed compression nut, holds the insulating tube with two hands, turns on a switch of the driving mechanism, drives the positioning mechanism to rotate, and drives the sleeve to rotate so as to tighten the compression nut; the insulating mechanism can keep the safe distance between the live line phase and the phase, and the safety of operators is ensured. This device makes operating personnel can be through the operation mode that does not have a power failure, and the gland nut of component on the quick not hard up or screw up the wire breaks away from the field operation power, has reduced the volume of instrument, has shortened operating time, and the security performance is higher, the device quality is less, improves work efficiency.
Drawings
Other features, objects and advantages of the present application will become more apparent upon reading of the following detailed description of non-limiting embodiments thereof, made with reference to the accompanying drawings in which:
FIGS. 1-2 are schematic structural diagrams of the present application;
fig. 3 is a partially enlarged schematic structural diagram of the present application.
Reference numbers in the figures: 10. a drive mechanism; 11. driving the wrench; 12. an angle turning device; 13. a drive connection; 20. a transmission mechanism; 21. a drive shaft; 22. fixing a bracket; 23. a third gear; 24. a fourth gear; 25. a first bearing; 26. a second bearing; 27. a third bearing; 28. a fourth bearing; 29. a connecting shaft; 30. a positioning mechanism; 31. a sleeve; 32. a first gear support; 33. a first gear; 34. a solid shaft; 35. a second gear support; 36. a second gear; 40. an insulating mechanism; 41. an insulating tube; 42. an insulating cover; 43. a first insulating case; 44. a second insulating case; 45. an insulating plate.
Detailed Description
The present application will be described in further detail with reference to the following drawings and examples. It is to be understood that the specific embodiments described herein are merely illustrative of the relevant invention and not restrictive of the invention. It should be noted that, for convenience of description, only the portions related to the present invention are shown in the drawings.
It should be noted that the embodiments and features of the embodiments in the present application may be combined with each other without conflict. The present application will be described in detail below with reference to the embodiments with reference to the attached drawings.
Example one
An adjustment wrench for maintenance comprising: the device comprises a driving mechanism 10, a transmission mechanism 20 connected with the driving mechanism 10, a positioning mechanism 30 and an insulating mechanism 40;
the transmission mechanism 20 includes: a transmission shaft 21 axially connected with the driving mechanism 10, and a transmission assembly connected with the transmission shaft 21;
the positioning mechanism 30 includes: a sleeve 31 and a gear assembly for changing the angle of the sleeve 31; the gear assembly is connected with the transmission assembly, and the sleeve 31 is detachably connected with the gear assembly and used for fastening a nut;
the insulating mechanism 40 includes: an insulating tube 41 surrounding the outside of the transmission shaft 21 and an insulating cover 42 disposed outside the transmission assembly;
the driving mechanism 10 drives the transmission mechanism 20 to move, and the transmission mechanism 20 drives the positioning mechanism 30 to rotate.
When the device is used, firstly, an operator needs to observe and measure a field lead through a device for observing the state of an element on the overhead lead in an electrified way and a self-torsion angle measuring instrument of the element on the overhead lead to obtain the size, the specific position and the corresponding angle of a compression nut needing to be loosened or screwed; and the sleeve 31 has a plurality of sizes corresponding to a plurality of nuts, the sleeve 31 having a corresponding diameter is selected, then the angle of the gear assembly is adjusted and fixed, and then the sleeve 31 is fixed to the gear assembly.
After each component is fixed, an operator climbs a pole and then selects a standing position, and lifts the device to enable the sleeve 31 to be buckled on a compression nut of a bolt needing to be loosened or screwed. As shown in fig. 1, an operator holds the insulating tube 41 with both hands, opens the switch of the driving mechanism 10, the driving mechanism 10 drives the transmission mechanism 20 to move, the transmission mechanism 20 drives the positioning mechanism 30 to rotate, and the positioning mechanism 30 drives the sleeve 31 to rotate, so as to tighten the gland nut; the driving mechanism 10 can rotate forward and backward to loosen or tighten the gland nut, and the insulating mechanism 40 can keep the safe distance between a live line phase and a phase, so that the safety of an operator is ensured. After the operator finishes tightening and loosening the compression nut, the sleeve 31 is separated from the bolt of the element on the overhead conductor, tools are picked up, and the site is cleaned.
In order to further optimize the above technical solution, the technical solution is preferably further provided with the following improvements: the gear assembly includes: a first gear set connected to the sleeve 31 and a second gear set connected to the transmission assembly;
the first gear set includes: a first gear bracket 32, a first gear 33 provided on the first gear bracket 32, and a solid shaft 34 connected to the first gear 33; the second gear set includes: a second gear bracket 35 and a second gear 36 provided on the second gear bracket 35; the first gear bracket 32 is connected with the second gear bracket 35 and has an included angle, and the first gear 33 is meshed with the second gear 36; the solid shaft 34 is connected to the sleeve 31, and the first gear 33 set drives the sleeve 31 to rotate.
In order to further optimize the above technical solution, the technical solution is preferably further provided with the following improvements: the transmission assembly includes: a fixed bracket 22 connected with the insulating tube 41 and the driving mechanism 10, a third gear 23 and a fourth gear 24 connected with the transmission shaft 21;
the third gear 23 and the fourth gear 24 are both arranged on the fixed bracket 22, a bearing assembly is arranged on the fixed bracket 22, and the second gear 36 and the bracket 35 are connected with the fixed bracket 22; the third gear 23 is vertically arranged on the fourth gear 24 and meshed with the fourth gear; the transmission shaft 21 drives the fourth gear 24 to rotate, and the third gear 23 drives the second gear 36 to rotate through the bearing assembly.
In order to further optimize the above technical solution, the technical solution is preferably further provided with the following improvements: the drive mechanism 10 includes: a driving wrench 11, a corner tool 12 connected with the driving wrench 11, and a driving connection member 13 for connecting the driving wrench 11 and the corner tool 12; the corner device 12 is connected with the transmission shaft 21, and the corner device 12 is used for changing the transmission direction.
In order to further optimize the above technical solution, the technical solution is preferably further provided with the following improvements: the bearing assembly includes: a second bearing 26 provided on the second gear 36, a third bearing 27 provided on the third gear 23, a fourth bearing 28 provided on the fourth gear 24, and a connecting shaft 29 provided astride between the second bearing 26 and the third bearing 27; one end of the connecting shaft 29 is connected with the third gear 23, the other end of the connecting shaft is connected with the second gear 36, and the second gear 36 and the third gear 23 synchronously rotate through the connecting shaft 29.
In order to further optimize the above technical solution, the technical solution is preferably further provided with the following improvements: the insulating mechanism 40 further includes: a first insulating case 43 provided on the driving wrench 11 and a second insulating case 44 provided on the corner key 12; an insulating plate 45 is further arranged on the insulating cover 42.
As shown in fig. 2 and 3, in the present apparatus, the driving wrench 11 rotates to drive the driving connection member 13, the driving connection member 13 drives the corner device 12 to move, the corner device 12 can change the original transmission direction of the driving wrench 11, so that the included angle between the input force and the output force is 90 °, and the transmission shaft 21 is driven to rotate around its own axis; the transmission shaft 21 penetrates through the fourth bearing 28 to drive the fourth gear 24 to rotate, the fourth gear 24 drives the third gear 23 meshed with the fourth gear to rotate, the connecting shaft 29 on the third gear 23 penetrates through the third bearing 27 and the fourth bearing 28 to drive the second gear 36 to synchronously rotate, the second gear 36 drives the first gear 33 meshed with the second gear to rotate, the first gear 33 drives the sleeve 31 to rotate through the solid shaft 34, and finally the sleeve 31 rotates to enable the compression nut to be loosened or compacted, so that the purpose of rapid operation is achieved.
The first gear bracket 32 and the second gear bracket 36 are detachably connected with each other, so that the included angle between the two brackets can be changed, and when the right eye hole of the second gear bracket shown in fig. 3 is connected, the included angle can reach 150 degrees at most; when the left eye of the second gear bracket shown in fig. 3 is connected, the included angle can reach 270 degrees at most; therefore, the device can adapt to work under various conditions; the transmission shaft 21, the insulating tube 41, the connecting shaft 29, the insulating cover 42 and the like are all made of epoxy glass fiber reinforced plastic or other insulating materials, and the safety of operators can be guaranteed.
The device enables an operator to quickly loosen or tighten the gland nut of the element on the wire, and the gland nut is separated from a field operation power supply, so that the size of a tool is reduced, the operation time is shortened, the safety performance is higher, the quality of the device is smaller, and the working efficiency is improved.
In order to further optimize the above technical solution, the technical solution is preferably further provided with the following improvements: the transmission shaft 21 is further provided with a first bearing 25. The first bearing 25 may be disposed at a middle portion of the transmission shaft 21, so that the rotation thereof can be more stably and smoothly performed.
In order to further optimize the above technical solution, the technical solution is preferably further provided with the following improvements: the driving wrench 11 is a rechargeable ratchet wrench, and the corner device 12 is a large torque corner device 12. The rechargeable ratchet wrench can be fully charged when not in use, and is not required to be connected with a power supply when in use; in other embodiments, other types of high torque power screwdrivers may be used as the source of drive force.
In order to further optimize the above technical solution, the technical solution is preferably further provided with the following improvements: the first gear holder 32 and the second gear holder 35 are connected by screws. Through not hard up screw, perhaps change the left and right sides on the first gear 33 support 32 and connect the eye, change the contained angle of first gear support 32 and second gear support 35, tighten the bolt again, can realize changing the two contained angles.
In order to further optimize the above technical solution, the technical solution is preferably further provided with the following improvements: the transmission shaft 21 and the connecting shaft 29 are made of insulating materials.
The above description is only a preferred embodiment of the application and is illustrative of the principles of the technology employed. It will be appreciated by a person skilled in the art that the scope of the invention as referred to in the present application is not limited to the embodiments with a specific combination of the above-mentioned features, but also covers other embodiments with any combination of the above-mentioned features or their equivalents without departing from the inventive concept. For example, the above features may be replaced with (but not limited to) features having similar functions disclosed in the present application.
Claims (10)
1. The utility model provides an overhaul with adjusting spanner which characterized in that: the method comprises the following steps: the device comprises a driving mechanism (10), a transmission mechanism (20) connected with the driving mechanism (10), a positioning mechanism (30) and an insulation mechanism (40);
the transmission mechanism (20) includes: a transmission shaft (21) axially connected with the driving mechanism (10) and a transmission assembly connected with the transmission shaft (21);
the positioning mechanism (30) comprises: a sleeve (31) and a gear assembly for changing the angle of the sleeve (31); the gear assembly is connected with the transmission assembly, and the sleeve (31) is detachably connected with the gear assembly and used for buckling a nut;
the insulating mechanism (40) includes: an insulating tube (41) surrounding the outside of the transmission shaft (21) and an insulating cover (42) arranged outside the transmission assembly;
the driving mechanism (10) drives the transmission mechanism (20) to move, and the transmission mechanism (20) drives the positioning mechanism (30) to rotate.
2. An adjustment wrench for maintenance purposes as claimed in claim 1, wherein: the gear assembly includes: a first gear set connected with the sleeve (31) and a second gear set connected with the transmission assembly;
the first gear set includes: the gear transmission mechanism comprises a first gear bracket (32), a first gear (33) arranged on the first gear bracket (32) and a solid shaft (34) connected with the first gear (33); the second gear set includes: a second gear bracket (35) and a second gear (36) arranged on the second gear bracket (35); the first gear bracket (32) is connected with the second gear bracket (35) and has an included angle, and the first gear (33) is meshed with the second gear (36); the solid shaft (34) is connected with the sleeve (31), and the first gear set drives the sleeve (31) to rotate.
3. An adjustment wrench for maintenance purposes as claimed in claim 1, wherein: the transmission assembly includes: a fixed bracket (22) connected with the insulating tube (41) and the driving mechanism (10), a third gear (23) and a fourth gear (24) connected with the transmission shaft (21);
the third gear (23) and the fourth gear (24) are both arranged on the fixed support (22), a bearing assembly is arranged on the fixed support (22), and the second gear (36) support (35) is connected with the fixed support (22); the third gear (23) is vertically arranged on the fourth gear (24) and meshed with the fourth gear; the transmission shaft (21) drives the fourth gear (24) to rotate, and the third gear (23) drives the second gear (36) to rotate through a bearing assembly.
4. An adjustment wrench for maintenance purposes as claimed in claim 1, wherein: the drive mechanism (10) comprises: the corner device comprises a driving wrench (11), a corner device (12) connected with the driving wrench (11) and a driving connecting piece (13) used for connecting the driving wrench (11) and the corner device (12); the corner device (12) is connected with the transmission shaft (21), and the corner device (12) is used for changing the transmission direction.
5. An adjustment wrench for maintenance purposes as claimed in claim 3, wherein: the bearing assembly includes: a second bearing (26) arranged on the second gear (36), a third bearing (27) arranged on the third gear (23), a fourth bearing (28) arranged on the fourth gear (24) and a connecting shaft (29) spanned between the second bearing (26) and the third bearing (27); one end of the connecting shaft (29) is connected with the third gear (23), the other end of the connecting shaft is connected with the second gear (36), and the second gear (36) and the third gear (23) synchronously rotate through the connecting shaft (29).
6. An adjustment wrench for maintenance purposes as claimed in claim 4, wherein: the insulating mechanism (40) further includes: a first insulating shell (43) arranged on the driving spanner (11) and a second insulating shell (44) arranged on the corner device (12); an insulating plate (45) is further arranged on the insulating cover (42).
7. An adjustment wrench for maintenance purposes as claimed in claim 1, wherein: the transmission shaft (21) is also provided with a first bearing (25).
8. An adjustment wrench for maintenance purposes as claimed in claim 4, wherein: the driving wrench (11) is a rechargeable ratchet wrench, and the corner device (12) is a large-torque corner device (12).
9. An adjustment wrench for maintenance purposes as claimed in claim 2, wherein: the first gear bracket (32) and the second gear bracket (35) are connected through screws.
10. An adjustment wrench for overhaul according to any one of claims 1 to 5, wherein: the transmission shaft (21) and the connecting shaft (29) are made of insulating materials.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010489381.XA CN111496725A (en) | 2020-06-02 | 2020-06-02 | Adjustment wrench for overhauling |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010489381.XA CN111496725A (en) | 2020-06-02 | 2020-06-02 | Adjustment wrench for overhauling |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN111496725A true CN111496725A (en) | 2020-08-07 |
Family
ID=71849115
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010489381.XA Pending CN111496725A (en) | 2020-06-02 | 2020-06-02 | Adjustment wrench for overhauling |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN111496725A (en) |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201537891U (en) * | 2009-12-14 | 2010-08-04 | 冉来明 | Normal axis wrench suitable for a small operation space |
| CN101959638A (en) * | 2008-03-13 | 2011-01-26 | 本田技研工业株式会社 | Bolt tightening method, bolt tightening device, bolt supplying method, and bolt supplying device |
| CN103192336A (en) * | 2013-04-28 | 2013-07-10 | 国家电网公司 | Method for bolt fastening of suspension clamp of power transmission line and special tool |
| CN204658288U (en) * | 2015-06-02 | 2015-09-23 | 国家电网公司 | A kind of bolt clamp device |
| CN108274420A (en) * | 2018-04-04 | 2018-07-13 | 国网冀北电力有限公司廊坊供电公司 | A kind of overhead transmission line hotline maintenance universal wrench |
| CN209175645U (en) * | 2018-11-08 | 2019-07-30 | 国网河南省电力公司巩义市供电公司 | It can livewire work electric wrench |
| CN110682241A (en) * | 2019-11-25 | 2020-01-14 | 河南送变电建设有限公司 | Novel mechanical torque wrench |
| CN212887362U (en) * | 2020-06-02 | 2021-04-06 | 国网冀北电力有限公司廊坊供电公司 | Adjustment wrench for overhauling |
-
2020
- 2020-06-02 CN CN202010489381.XA patent/CN111496725A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101959638A (en) * | 2008-03-13 | 2011-01-26 | 本田技研工业株式会社 | Bolt tightening method, bolt tightening device, bolt supplying method, and bolt supplying device |
| CN201537891U (en) * | 2009-12-14 | 2010-08-04 | 冉来明 | Normal axis wrench suitable for a small operation space |
| CN103192336A (en) * | 2013-04-28 | 2013-07-10 | 国家电网公司 | Method for bolt fastening of suspension clamp of power transmission line and special tool |
| CN204658288U (en) * | 2015-06-02 | 2015-09-23 | 国家电网公司 | A kind of bolt clamp device |
| CN108274420A (en) * | 2018-04-04 | 2018-07-13 | 国网冀北电力有限公司廊坊供电公司 | A kind of overhead transmission line hotline maintenance universal wrench |
| CN209175645U (en) * | 2018-11-08 | 2019-07-30 | 国网河南省电力公司巩义市供电公司 | It can livewire work electric wrench |
| CN110682241A (en) * | 2019-11-25 | 2020-01-14 | 河南送变电建设有限公司 | Novel mechanical torque wrench |
| CN212887362U (en) * | 2020-06-02 | 2021-04-06 | 国网冀北电力有限公司廊坊供电公司 | Adjustment wrench for overhauling |
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