CN107576825B - Reducing direct current, return circuit resistance test clamp - Google Patents
Reducing direct current, return circuit resistance test clamp Download PDFInfo
- Publication number
- CN107576825B CN107576825B CN201710718668.3A CN201710718668A CN107576825B CN 107576825 B CN107576825 B CN 107576825B CN 201710718668 A CN201710718668 A CN 201710718668A CN 107576825 B CN107576825 B CN 107576825B
- Authority
- CN
- China
- Prior art keywords
- handle
- main
- auxiliary
- jaw seat
- extension
- 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.)
- Active
Links
- 238000012360 testing method Methods 0.000 title claims abstract description 34
- 230000006835 compression Effects 0.000 claims abstract description 5
- 238000007906 compression Methods 0.000 claims abstract description 5
- 239000011148 porous material Substances 0.000 description 5
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 239000011810 insulating material Substances 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000003449 preventive effect Effects 0.000 description 1
Landscapes
- Clamps And Clips (AREA)
Abstract
The invention discloses a variable-diameter direct current and loop resistance test clamp, which comprises a main handle and an auxiliary handle, wherein the middle front parts of the main handle and the auxiliary handle are inwards concave to form bulges to one side, the bulges of the main handle and the auxiliary handle are connected through a fixing nut, the front end of the main handle is fixedly connected with a main jaw seat, the front end of the auxiliary handle is fixedly connected with an auxiliary jaw seat, a compression spring is arranged between the rear ends of the bulges of the main handle and the auxiliary handle, a jaw is formed between the main jaw seat and the auxiliary jaw seat, the front end of the main jaw seat is rotatably connected with a main extension jaw seat, an extension jaw is formed between the main extension jaw seat and the auxiliary extension jaw seat, a test wire connecting hole is formed on the main jaw seat and/or the main extension jaw seat, and a test wire connecting hole is formed on the auxiliary jaw seat and/or the auxiliary extension jaw seat; the test clamp opening is of a folding structure, and the diameter of the opening of the clamp opening is multiplied after the test clamp opening is unfolded.
Description
Technical Field
The invention relates to the field of resistance testing, in particular to a reducing direct current and loop resistance testing clamp.
Background
In the power industry, loop resistance (circuit breaker and isolating switch) and direct current resistance test (transformer, etc.) of equipment are very important preventive test items, and the wiring mode is that a test clamp is directly clamped to a drainage end of a vacuum bulb or a drainage end of a transformer, but if the diameter of the drainage end of the equipment is too large to exceed the maximum opening of the test clamp, the test clamp cannot be directly clamped to the drainage end of the equipment, and only a transitional mode can be adopted for clamping, such as a mode of clamping connecting bolts around the drainage end by using the test clamp and a mode of fixing a transitional plate for measurement, and the two modes can bring great errors due to the fact that the measured direct resistance is milliohm level and the loop resistance is microohm level.
Disclosure of Invention
Therefore, the invention aims to provide a reducing direct current and loop resistance test clamp, wherein the clamp opening is of a folding structure, and the diameter of the opening of the clamp opening is multiplied after the clamp opening is unfolded.
The invention aims at realizing the following technical scheme:
the utility model provides a reducing direct current, return circuit resistance test clamp, includes main handle and auxiliary handle, the middle front portion of main handle and auxiliary handle is to one side indent formation arch, the arch of main handle and auxiliary handle passes through fixation nut and connects, main handle front end fixedly connected with main jaw seat, auxiliary handle front end fixedly connected with auxiliary jaw seat, be provided with compression spring between main handle and auxiliary handle protruding rear end, form the jaw between main jaw seat and the auxiliary jaw seat, the front end rotation of main jaw seat is connected with main extension jaw seat, the front end rotation of auxiliary jaw seat is connected with auxiliary extension jaw seat, form extension jaw between main extension jaw seat and the auxiliary extension jaw seat, be provided with the test line connecting hole on main jaw seat and/or the main extension jaw seat, be provided with the test line connecting hole on auxiliary jaw seat and the auxiliary extension jaw seat.
Further, the rear end of the main handle is hinged with a main extension handle, and the rear end of the auxiliary handle is hinged with an auxiliary extension handle.
Further, the main extension handle is connected with the main handle through a hinge, and the auxiliary extension handle is connected with the auxiliary handle through a hinge.
Further, be provided with the recess on main handle, the auxiliary handle respectively, be provided with slidable locking slider in the recess, be provided with the intercommunicating pore that is linked together on main handle and the main extension handle, the intercommunicating pore is connected to the recess, be provided with the intercommunicating pore that is linked together on auxiliary handle and the auxiliary extension handle, the intercommunicating pore is connected to the recess, be provided with the slip lock needle that can insert the intercommunicating pore on the locking slider.
Further, the connection position of the main handle and the main extension handle is staggered with the connection position of the auxiliary handle and the auxiliary extension handle in the length direction, spring seats are respectively arranged on the main extension handle and the auxiliary extension handle, a slidable guide rod is arranged in the spring seats, the guide rod is perpendicular to the main extension handle and the auxiliary extension handle, a spring is sleeved on the guide rod, and one end of the spring is fixed at the top end of the guide rod, and the other end of the spring is fixed on the spring seat.
Further, magnets are respectively arranged at the rear ends of the main handle and the auxiliary handle close to the bulges, and magnets are respectively arranged at the rearmost ends of the main extension handle and the auxiliary extension handle.
Furthermore, the two sides of the top surfaces of the forefront ends of the main jaw seat and the auxiliary jaw seat are provided with lugs, and the rear end parts of the main extension jaw seat and the auxiliary extension jaw seat are provided with rotating shafts which can be inserted between the two lugs.
Still further, both sides equidistance are provided with the pinhole around the junction of main seat of keeping silent with main extension seat of keeping silent, the equidistance is provided with corresponding pinhole on the main extension seat of keeping silent, and a main fixed pin of keeping silent inserts the pinhole of main extension seat of keeping silent and one of them pinhole connection of keeping silent of seat, vice seat of keeping silent is provided with the pinhole with the junction of vice extension seat of keeping silent around both sides equidistance, the equidistance is provided with corresponding pinhole on the vice extension seat of keeping silent, and a vice fixed pin of keeping silent inserts the pinhole of vice extension seat of keeping silent and one of them pinhole connection of vice seat of keeping silent.
The beneficial effects of the invention are as follows:
the invention relates to a variable-diameter direct current and loop resistance test clamp, which has a folding structure, wherein the diameter of an opening of a clamp jaw is multiplied after the clamp jaw is unfolded, the clamp jaw can adapt to the condition that the diameter difference of a drainage end is larger, a handle adopts a folding structure, when the drainage end of clamped equipment is overlarge, a clamp operator can easily complete clamping operation by unfolding the handle, springs and guide rods arranged on an auxiliary extension handle and a main extension handle are not in the same length due to the fact that folding joints are not in the same length when the handle is in a folding state, the two springs are not in contact with each other, and after the auxiliary extension handle and the main extension handle are unfolded, the two springs are in the same straight line to increase the clamping force for clamping a terminal with a large diameter.
Additional advantages, objects, and features of the invention will be set forth in part in the description which follows and in part will become apparent to those having ordinary skill in the art upon examination of the following or may be learned from practice of the invention. The objects and other advantages of the invention may be realized and obtained by means of the instrumentalities and combinations particularly pointed out in the specification.
Drawings
For the purpose of making the objects, technical solutions and advantages of the present invention more apparent, the present invention will be described in further detail with reference to the accompanying drawings, in which:
FIG. 1 is a front perspective view of the present invention;
FIG. 2 is a rear perspective view of the present invention;
FIG. 3 is a schematic view of a folded structure according to the present invention;
fig. 4 is a schematic view of another folding structure of the present invention.
1. An auxiliary extension handle; 2. a spring seat; 3. a spring; 4. a spring guide rod; 5. a hinge; 6. locking the slider; 7. an auxiliary handle; 9. a compression spring; 10. an auxiliary jaw seat; 11. a jaw fixing pin; 12. a main extension jaw; 14. a main handle; 15. sliding lock pin; 16. a main extension handle; 18. a fixing nut; 19. a magnet; 20. a main jaw seat; 21. the auxiliary extension jaw seat.
Detailed Description
Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings. It should be understood that the preferred embodiments are presented by way of illustration only and not by way of limitation.
As shown in fig. 1-4, a variable-diameter direct current and loop resistance test clamp comprises a main handle 14 and an auxiliary handle 7, wherein the middle front parts of the main handle 14 and the auxiliary handle 7 are inwards concave to form bulges, the bulges of the main handle and the auxiliary handle are connected through a fixed nut 18, the main handle and the auxiliary handle can rotate around the bulges, the front end of the main handle 14 is fixedly connected with a main jaw seat 20, the front end of the auxiliary handle 7 is fixedly connected with an auxiliary jaw seat 10, a compression spring 9 is arranged between the rear ends of the bulges of the main handle and the auxiliary handle, so that a jaw is always kept in a clamping state, a jaw is formed between the main jaw seat 20 and the auxiliary jaw seat 10, the front end of the main jaw seat 20 is rotationally connected with an auxiliary extension jaw seat 21, an extension jaw is formed between the main extension jaw seat 12 and the auxiliary extension jaw seat 21, a test wire connecting hole is formed in the main jaw seat 20 and/or the main extension jaw seat 12, the auxiliary jaw seat 10 and/or the auxiliary extension jaw seat 21 is/are electrically connected with a test wire connecting hole, and the clamp is made of insulating materials; the clamp mouth is of a folding structure, and the diameter of the opening of the clamp mouth is multiplied after the clamp mouth is unfolded, so that the clamp mouth can adapt to the condition that the diameter of the drainage end is larger in difference.
The rear end of the main handle 14 is hinged with a main extension handle 16, the rear end of the auxiliary handle 7 is hinged with an auxiliary extension handle 1, and when the drainage end of the clamped equipment is oversized, the handle is unfolded, so that a worker can easily complete the clamping operation.
The main extension handle 16 is connected with the main handle 14 through the hinge 5, the auxiliary extension handle 1 is connected with the auxiliary handle 7 through the hinge 5, the structure is simple, the folding is convenient, and other modes of connection such as connection by using a hinge shaft can be adopted.
The main handle 14 and the auxiliary handle 7 are respectively provided with a groove, a slidable locking slider 6 is arranged in the grooves, communicating holes which are communicated are arranged on the main handle 14 and the main extension handle 16, the communicating holes are connected to the grooves, communicating holes which are communicated are arranged on the auxiliary handle 7 and the auxiliary extension handle 1, the communicating holes are connected to the grooves, a sliding locking needle 15 which can be inserted into the communicating holes is arranged on the locking slider 6, after the handle is unfolded, the locking slider 6 is moved backwards, the sliding locking needle 15 slides into the main extension handle 16 from a hole of the main handle 14, and the sliding locking needle 15 slides into the auxiliary extension handle 1 from a hole of the auxiliary handle 7, so that the main extension handle 16 and the main handle 14 as well as the auxiliary extension handle 1 and the auxiliary handle 7 keep the same horizontal height.
The connection position of the main handle 14 and the main extension handle 16 and the connection position of the auxiliary handle 7 and the auxiliary extension handle 1 are staggered in the length direction, the main extension handle 16 and the auxiliary extension handle 1 are respectively provided with a spring seat 2, a slidable guide rod 4 is arranged in the spring seat 2, the guide rod 4 is perpendicular to the main extension handle 16 and the auxiliary extension handle 1, a spring 3 is sleeved on the guide rod 4, one end of the spring 3 is fixed at the top end of the guide rod 4, the other end of the spring is fixed on the spring seat 2, the spring 3 and the guide rod 4 arranged on the auxiliary extension handle 1 and the main extension handle 16 are not in the same length due to the fact that folding joints are not in the same length when the handles are in a folded state, the two springs are not in contact in dislocation, and after the auxiliary extension handle and the main extension handle are unfolded, the two springs are in the same straight line to increase clamping force for clamping a terminal with large diameter
The rear ends of the main handle 14 and the auxiliary handle 7 are close to the bulges and are respectively provided with a magnet 19, the rearmost ends of the main extension handle and the auxiliary extension handle are respectively provided with magnets, and after the handles are folded, the handles are adsorbed by means of the embedded magnets, so that the structure of the test clamp is stable and compact.
The two sides of the top surfaces of the forefront ends of the main jaw seat 20 and the auxiliary jaw seat 10 are provided with lugs, the rear end parts of the main extension jaw seat 12 and the auxiliary extension jaw seat 21 are provided with rotating shafts which can be inserted between the two lugs, and the auxiliary jaws are convenient to fold and unfold.
The front side and the rear side of the joint of the main jaw seat 20 and the main extension jaw 12 seat are provided with pin holes at equal intervals, the main extension jaw seat 12 is provided with corresponding pin holes at equal intervals, a main jaw fixing pin 11 is inserted into the pin hole of the main extension jaw seat 12 and one of the pin holes of the main jaw seat 20 to be connected, the front side and the rear side of the joint of the auxiliary jaw seat 10 and the auxiliary extension jaw seat 21 are provided with pin holes at equal intervals, the auxiliary extension jaw seat 21 is provided with corresponding pin holes at equal intervals, and the auxiliary jaw fixing pin 11 is inserted into the pin hole of the auxiliary extension jaw seat 21 and one of the pin holes of the auxiliary jaw seat 10 to be connected, so that the auxiliary extension jaw seat and the main extension jaw seat can be fixed on the auxiliary jaw seat and the main jaw seat.
Finally, it is noted that the above embodiments are only for illustrating the technical solution of the present invention and not for limiting the same, and although the present invention has been described in detail with reference to the preferred embodiments, it should be understood by those skilled in the art that modifications and equivalents may be made thereto without departing from the spirit and scope of the present invention, which is intended to be covered by the claims of the present invention.
Claims (7)
1. A reducing direct current, return circuit resistance test clamp, its characterized in that: the test line testing device comprises a main handle and an auxiliary handle, wherein the middle front parts of the main handle and the auxiliary handle are concaved inwards to form bulges, the bulges of the main handle and the auxiliary handle are connected through fixing nuts, the front end of the main handle is fixedly connected with a main jaw seat, the front end of the auxiliary handle is fixedly connected with an auxiliary jaw seat, a compression spring is arranged between the rear ends of the bulges of the main handle and the auxiliary handle, a jaw is formed between the main jaw seat and the auxiliary jaw seat, the front end of the main jaw seat is rotationally connected with a main extension jaw seat, the front end of the auxiliary jaw seat is rotationally connected with an auxiliary extension jaw seat, an extension jaw is formed between the main extension jaw seat and the auxiliary extension jaw seat, and a test line connecting hole is formed on the main jaw seat and/or the main extension jaw seat; the main jaw seat is provided with pin holes with equal distance from front to back at the joint of the main jaw seat and the main extension jaw seat, the main extension jaw seat is provided with corresponding pin holes with equal distance, a main jaw fixing pin is inserted into the pin hole of the main extension jaw seat and one of the pin holes of the main jaw seat to be connected, the auxiliary jaw seat is provided with pin holes with equal distance from front to back at the joint of the auxiliary jaw seat and the auxiliary extension jaw seat, the auxiliary extension jaw seat is provided with corresponding pin holes with equal distance, and an auxiliary jaw fixing pin is inserted into the pin hole of the auxiliary extension jaw seat and one of the pin holes of the auxiliary jaw seat to be connected.
2. The variable diameter direct current, loop resistance test clip of claim 1, wherein: the rear end of the main handle is hinged with a main extension handle, and the rear end of the auxiliary handle is hinged with an auxiliary extension handle.
3. The variable diameter direct current, loop resistance test clip of claim 2, wherein: the main extension handle is connected with the main handle through a hinge, and the auxiliary extension handle is connected with the auxiliary handle through a hinge.
4. The variable diameter direct current, loop resistance test clip of claim 2, wherein: the novel multifunctional lock comprises a main handle and an auxiliary handle, wherein grooves are formed in the main handle and the auxiliary handle respectively, a locking slider capable of sliding is arranged in the grooves, communicating holes which are communicated are formed in the main handle and the main extension handle, the communicating holes are connected to the grooves, communicating holes which are communicated are formed in the auxiliary handle and the auxiliary extension handle, the communicating holes are connected to the grooves, and a sliding lock needle capable of being inserted into the communicating holes is arranged on the locking slider.
5. The variable diameter direct current, loop resistance test clip of claim 2, wherein: the connecting position of the main handle and the main extension handle is staggered with the connecting position of the auxiliary handle and the auxiliary extension handle in the length direction, spring seats are respectively arranged on the main extension handle and the auxiliary extension handle, a slidable guide rod is arranged in the spring seats, the guide rod is perpendicular to the main extension handle and the auxiliary extension handle, a spring is sleeved on the guide rod, and one end of the spring is fixed at the top end of the guide rod and the other end of the spring is fixed on the spring seat.
6. The variable diameter direct current, loop resistance test clip of claim 2, wherein: magnets are respectively arranged at the rear ends of the main handle and the auxiliary handle close to the bulges, and magnets are respectively arranged at the rearmost ends of the main extension handle and the auxiliary extension handle.
7. The variable diameter direct current, loop resistance test clip of claim 1, wherein: the two sides of the top surfaces of the forefront ends of the main jaw seat and the auxiliary jaw seat are provided with lugs, and the rear end parts of the main extension jaw seat and the auxiliary extension jaw seat are provided with rotating shafts which can be inserted between the two lugs.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710718668.3A CN107576825B (en) | 2017-08-21 | 2017-08-21 | Reducing direct current, return circuit resistance test clamp |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710718668.3A CN107576825B (en) | 2017-08-21 | 2017-08-21 | Reducing direct current, return circuit resistance test clamp |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107576825A CN107576825A (en) | 2018-01-12 |
| CN107576825B true CN107576825B (en) | 2024-01-30 |
Family
ID=61034584
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710718668.3A Active CN107576825B (en) | 2017-08-21 | 2017-08-21 | Reducing direct current, return circuit resistance test clamp |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107576825B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110967532B (en) * | 2019-12-02 | 2022-09-02 | 深圳供电局有限公司 | Electric power test clip |
| CN113884768B (en) * | 2021-10-22 | 2022-09-20 | 中国铁道科学研究院集团有限公司标准计量研究所 | Contact wire resistance measuring device |
Citations (27)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2415520A1 (en) * | 1978-01-27 | 1979-08-24 | Auzou Paul | MANUAL FORCEPS WITH REMOVABLE JAWS |
| CN2155571Y (en) * | 1992-07-13 | 1994-02-09 | 张力 | Universal testing clamp for low-resistance testers |
| US5327802A (en) * | 1993-05-21 | 1994-07-12 | Yu Chin Yung | Combination pliers |
| CN1266767A (en) * | 1999-01-29 | 2000-09-20 | 莱特曼工具集团有限公司 | Multifunctional locking pliers |
| CN2443387Y (en) * | 2000-09-29 | 2001-08-15 | 温红旗 | Switch circuit resistance tester |
| US6408725B1 (en) * | 2001-04-20 | 2002-06-25 | Paul M. Janson | Pliers |
| CN201035041Y (en) * | 2007-05-21 | 2008-03-12 | 张旦芬 | High altitude test plier |
| CN201804026U (en) * | 2010-10-12 | 2011-04-20 | 邢台供电公司 | Retractable pincer-like galvanometer |
| CN201872094U (en) * | 2010-12-06 | 2011-06-22 | 河南省电力公司濮阳供电公司 | Pliers with adjustable handle length |
| CN202318300U (en) * | 2011-09-05 | 2012-07-11 | 马景德 | Multifunctional clamping pincers |
| CN202383202U (en) * | 2011-12-23 | 2012-08-15 | 重庆市电力公司綦南供电局 | Jaw-adjustable direct-current resistance test plier |
| CN202421226U (en) * | 2011-12-23 | 2012-09-05 | 重庆市电力公司綦南供电局 | Small contact resistance circuit resistance testing pliers |
| CN103105512A (en) * | 2013-01-23 | 2013-05-15 | 安徽省电力公司芜湖供电公司 | High-altitude test clamp |
| CN203069630U (en) * | 2013-01-23 | 2013-07-17 | 安徽省电力公司芜湖供电公司 | High-altitude test clamp |
| CN103552007A (en) * | 2013-11-13 | 2014-02-05 | 上海齐迈五金有限公司 | Dual-head pliers |
| CN204086400U (en) * | 2014-10-24 | 2015-01-07 | 国家电网公司 | Circuit resistance tester |
| CN204314385U (en) * | 2014-12-17 | 2015-05-06 | 重庆市合川区环宇配件厂 | Gear type circuit resistance tester |
| CN204397649U (en) * | 2014-12-09 | 2015-06-17 | 国家电网公司 | Pincers special for sleeve conductive screw |
| CN204633229U (en) * | 2015-06-10 | 2015-09-09 | 成都市斯达鑫辉视讯科技有限公司 | A kind of wire stripping pliers of adjustable wire stripping length |
| CN205043690U (en) * | 2015-09-28 | 2016-02-24 | 重庆戈林物流有限责任公司 | Spanner of portion of can electronic change keeping silent |
| CN205210117U (en) * | 2015-10-28 | 2016-05-04 | 湖南维思动电力科技有限公司 | Resistance test presss from both sides |
| CN105759120A (en) * | 2014-12-17 | 2016-07-13 | 重庆市合川区环宇配件厂 | Gear-type adaptive loop resistance testing clamp |
| CN105866477A (en) * | 2016-03-30 | 2016-08-17 | 国网福建省电力有限公司 | Circuit resistance test wire connection clamp |
| CN205630365U (en) * | 2016-05-27 | 2016-10-12 | 国网山东省电力公司冠县供电公司 | Portable laborsaving pliers |
| CN205852096U (en) * | 2016-05-09 | 2017-01-04 | 金华市跨耀工具制造有限公司 | A kind of ground connection pincers |
| CN107064568A (en) * | 2016-11-29 | 2017-08-18 | 贵州电网有限责任公司兴义供电局 | Multi-functional high current overhead jointing clamp |
| CN207051333U (en) * | 2017-08-21 | 2018-02-27 | 贵州电网有限责任公司 | A kind of reducing direct current, loop resistance test clip |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5564318A (en) * | 1995-03-31 | 1996-10-15 | Pail; Opher | Folding tool |
| US6578221B2 (en) * | 2001-03-28 | 2003-06-17 | Great Neck Saw Manufacturers, Inc. | Foldable multi-tool |
| US7439726B2 (en) * | 2006-04-27 | 2008-10-21 | Fluke Corporation | Electrical measuring instrument having detachable current clamp probe |
| US9016102B2 (en) * | 2013-02-19 | 2015-04-28 | Milwaukee Electric Tool Corporation | Forming hand tool |
-
2017
- 2017-08-21 CN CN201710718668.3A patent/CN107576825B/en active Active
Patent Citations (27)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2415520A1 (en) * | 1978-01-27 | 1979-08-24 | Auzou Paul | MANUAL FORCEPS WITH REMOVABLE JAWS |
| CN2155571Y (en) * | 1992-07-13 | 1994-02-09 | 张力 | Universal testing clamp for low-resistance testers |
| US5327802A (en) * | 1993-05-21 | 1994-07-12 | Yu Chin Yung | Combination pliers |
| CN1266767A (en) * | 1999-01-29 | 2000-09-20 | 莱特曼工具集团有限公司 | Multifunctional locking pliers |
| CN2443387Y (en) * | 2000-09-29 | 2001-08-15 | 温红旗 | Switch circuit resistance tester |
| US6408725B1 (en) * | 2001-04-20 | 2002-06-25 | Paul M. Janson | Pliers |
| CN201035041Y (en) * | 2007-05-21 | 2008-03-12 | 张旦芬 | High altitude test plier |
| CN201804026U (en) * | 2010-10-12 | 2011-04-20 | 邢台供电公司 | Retractable pincer-like galvanometer |
| CN201872094U (en) * | 2010-12-06 | 2011-06-22 | 河南省电力公司濮阳供电公司 | Pliers with adjustable handle length |
| CN202318300U (en) * | 2011-09-05 | 2012-07-11 | 马景德 | Multifunctional clamping pincers |
| CN202383202U (en) * | 2011-12-23 | 2012-08-15 | 重庆市电力公司綦南供电局 | Jaw-adjustable direct-current resistance test plier |
| CN202421226U (en) * | 2011-12-23 | 2012-09-05 | 重庆市电力公司綦南供电局 | Small contact resistance circuit resistance testing pliers |
| CN103105512A (en) * | 2013-01-23 | 2013-05-15 | 安徽省电力公司芜湖供电公司 | High-altitude test clamp |
| CN203069630U (en) * | 2013-01-23 | 2013-07-17 | 安徽省电力公司芜湖供电公司 | High-altitude test clamp |
| CN103552007A (en) * | 2013-11-13 | 2014-02-05 | 上海齐迈五金有限公司 | Dual-head pliers |
| CN204086400U (en) * | 2014-10-24 | 2015-01-07 | 国家电网公司 | Circuit resistance tester |
| CN204397649U (en) * | 2014-12-09 | 2015-06-17 | 国家电网公司 | Pincers special for sleeve conductive screw |
| CN105759120A (en) * | 2014-12-17 | 2016-07-13 | 重庆市合川区环宇配件厂 | Gear-type adaptive loop resistance testing clamp |
| CN204314385U (en) * | 2014-12-17 | 2015-05-06 | 重庆市合川区环宇配件厂 | Gear type circuit resistance tester |
| CN204633229U (en) * | 2015-06-10 | 2015-09-09 | 成都市斯达鑫辉视讯科技有限公司 | A kind of wire stripping pliers of adjustable wire stripping length |
| CN205043690U (en) * | 2015-09-28 | 2016-02-24 | 重庆戈林物流有限责任公司 | Spanner of portion of can electronic change keeping silent |
| CN205210117U (en) * | 2015-10-28 | 2016-05-04 | 湖南维思动电力科技有限公司 | Resistance test presss from both sides |
| CN105866477A (en) * | 2016-03-30 | 2016-08-17 | 国网福建省电力有限公司 | Circuit resistance test wire connection clamp |
| CN205852096U (en) * | 2016-05-09 | 2017-01-04 | 金华市跨耀工具制造有限公司 | A kind of ground connection pincers |
| CN205630365U (en) * | 2016-05-27 | 2016-10-12 | 国网山东省电力公司冠县供电公司 | Portable laborsaving pliers |
| CN107064568A (en) * | 2016-11-29 | 2017-08-18 | 贵州电网有限责任公司兴义供电局 | Multi-functional high current overhead jointing clamp |
| CN207051333U (en) * | 2017-08-21 | 2018-02-27 | 贵州电网有限责任公司 | A kind of reducing direct current, loop resistance test clip |
Non-Patent Citations (2)
| Title |
|---|
| 一种新型回路电阻测试线接线钳的研制;谢育鹏等;电气时代;全文 * |
| 变压器试验接线钳的研制及应用;黄霖等;低碳技术;全文 * |
Also Published As
| Publication number | Publication date |
|---|---|
| CN107576825A (en) | 2018-01-12 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN107576825B (en) | Reducing direct current, return circuit resistance test clamp | |
| CN204651519U (en) | For the auxiliary connection folder of binding post wiring test | |
| CN208738572U (en) | A kind of sectional terminal block connection plug component | |
| CN2155571Y (en) | Universal testing clamp for low-resistance testers | |
| CN108508254B (en) | Current measuring device with additional extension operation handle | |
| CN110824348A (en) | Adjustable butt joint device for plum blossom-shaped round contact of handcart type vacuum circuit breaker | |
| CN107703335B (en) | Voltage signal access clamp for lightning arrester resistive current test and use method thereof | |
| CN201429674Y (en) | Non-ascending contact resistance testing tool of breaker | |
| CN114039252B (en) | Combined overhauling power wiring adapting device | |
| CN216718512U (en) | Wiring device for electrical detection | |
| CN113889809A (en) | Crocodile clip and test wire clip with same | |
| CN108286956B (en) | Automatic diameter measuring device for copper wire for photovoltaic transformer | |
| CN219777730U (en) | Fuse resistor detection device | |
| CN206618787U (en) | A kind of multifunctional safe electric power shunting device | |
| CN220454755U (en) | New forms of energy rifle plug power testing arrangement that charges | |
| CN219226650U (en) | Tool for assembling connecting wires | |
| CN218995511U (en) | Loop resistance test joint | |
| CN109702676A (en) | A kind of universality universal pipe tongs | |
| CN219891304U (en) | Electric power test clamp | |
| CN204440777U (en) | Electric circuit teaching brassboard | |
| CN111273062A (en) | Circuit breaker detection auxiliary tool | |
| CN217215439U (en) | Rechargeable hydraulic tong | |
| CN219268150U (en) | Copper bar connection structure for power distribution cabinet | |
| CN218546872U (en) | Installation device of direct current low resistance tester | |
| CN209764910U (en) | Detection adapter |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |