CN103091519B - Handcart switch return circuit resistance test rivet type cable clamp - Google Patents
Handcart switch return circuit resistance test rivet type cable clamp Download PDFInfo
- Publication number
- CN103091519B CN103091519B CN201310033708.2A CN201310033708A CN103091519B CN 103091519 B CN103091519 B CN 103091519B CN 201310033708 A CN201310033708 A CN 201310033708A CN 103091519 B CN103091519 B CN 103091519B
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- China
- Prior art keywords
- screw rod
- components
- handle
- circuit resistance
- return circuit
- Prior art date
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- 239000004020 conductor Substances 0.000 claims abstract description 4
- 238000009413 insulation Methods 0.000 claims abstract description 4
- 239000007937 lozenge Substances 0.000 claims description 11
- 125000006850 spacer group Chemical group 0.000 claims description 11
- 230000002093 peripheral effect Effects 0.000 claims description 3
- 238000005259 measurement Methods 0.000 abstract description 4
- 230000000149 penetrating effect Effects 0.000 abstract 1
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 6
- 229910052802 copper Inorganic materials 0.000 description 6
- 239000010949 copper Substances 0.000 description 6
- 229910000831 Steel Inorganic materials 0.000 description 2
- 239000011810 insulating material Substances 0.000 description 2
- 239000010959 steel Substances 0.000 description 2
- 230000007812 deficiency Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 230000003252 repetitive effect Effects 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
Abstract
The invention discloses a handcart switch return circuit resistance test rivet type cable clamp which comprises a hollow conductive circular tube. A conductive test arm is arranged on one end portion of the hollow conductive circular tube. A hollow grip is arranged on the other end portion of the hollow conductive circular tube. The conductive rest arm is composed of components which are symmetrically arranged in a vertically interval mode. The outer surfaces of the components are in a circular arc shape. Wedge-shaped faces which are symmetrically arranged are arranged on opposite faces of the two components. Inner threads are arranged in an inner cavity of the grip. The grip is made of conductive materials. An insulation layer is covered on the outer periphery face of the grip. The handcart switch return circuit resistance test rivet type cable clamp further comprises a threaded rod. A locating piece is arranged at one end of the threaded rod. The threaded rod does reciprocating motion between the hollow conductive circular tube and the two components. A connection terminal is further arranged on the grip. The handcart switch return circuit resistance test rivet type cable clamp is provided with a plum blossom contact finger which is capable of penetrating through a handcart switch, and directly contacted with a handcart switch conductive tube. Accuracy of measurement of return circuit resistance is improved. Test times and test errors are reduced. Test efficiency is improved.
Description
Technical field
The present invention relates to a kind of wire clamp, particularly a kind of handcart switch return circuit resistance test rivet type cable clamp.
Background technology
The handcart switch return circuit resistance test clamp of current use, can only clamp at wheelbarrow switch plum blossom fingertip position, and elasticity causes each measured value and actual resistance all to there is comparatively big error between wheelbarrow switch plum blossom fingertip and wheelbarrow switch contact tube, repetitive measurement mean value also has obvious errors with actual resistance.
Summary of the invention
The object of the invention is to overcome the deficiencies in the prior art part, and provide one can pass wheelbarrow switch plum blossom fingertip, fast, accurately handcart switch return circuit resistance test job is carried out, reduce handcart switch return circuit resistance test error, improve the handcart switch return circuit resistance test rivet type cable clamp of loop resistance measurement efficiency.
A kind of handcart switch return circuit resistance test rivet type cable clamp, include the hollow conduction pipe of a section, the conductive test arm of one section is provided with in an end of hollow conduction pipe, described conductive test arm is that the component being circular arc by the outside surface between the upper and lower every symmetric offset spread forms, the forward surface of two components is provided with the lozenges of symmetric offset spread, this lozenges extends along the length direction of two components, dehiscing of the other end is greater than in dehiscing between two lozenges of hollow conduction pipe, a hollow handle is provided with in the other end of hollow conduction pipe, the inner chamber of handle is provided with internal thread, handle is made up of conductive material, an insulation course is enclosed with at the outer peripheral face of handle, also include the screw rod of a section, one end of screw rod is provided with spacer, screw rod extend into hollow conduction pipe by the internal thread of handle and leads between two components, the spacer of screw rod is followed screw rod and is moved reciprocatingly between hollow conduction pipe and two components, and the external diameter of screw rod spacer should be larger than the distance of two components of most of length between the place of same transversal section, handle is also provided with the more than one connection terminal of straight-through handle conductive layer.
The handcart switch return circuit resistance test rivet type cable clamp of this structure, during use, is connected the current line of circuit resistance tester and current potential sample line with the connection terminal on handle.Test arm is put in wheelbarrow switch plum blossom fingertip, directly contact with wheelbarrow switch contact tube copper pipe inwall through wheelbarrow switch plum blossom fingertip, rotary screw makes the spacer of screw tip promotion test arm make it to open, thus make test arm and tested copper pipe inwall close contact, utilize circuit resistance tester accurately can carry out loop resistance test.
Friction line is distributed with at the outside surface of two components of circular arc.
Friction line is set at two external surface of structural member of conductive test wall, can improves and be tested the contact compactedness of copper pipe inwall.
The transversal section of the lozenges on two described component forward surfaces or be plane, or be arcwall face.
Dismountable handle is also provided with at the other end of screw rod.
Screw rod arranges detachable handle, the operation of screw rod can be facilitated.
Described keeper is pad.
Described connection terminal is made up of screw rod and nut, and be fixed on handle bottom screw rod, nut is detachable.
In sum, the present invention's following advantage compared to existing technology:
Handcart switch return circuit resistance test rivet type cable clamp of the present invention has can pass wheelbarrow switch plum blossom fingertip, and direct and wheelbarrow switch contact tube close contact, improves loop resistance measurement accuracy, reduces test number (TN) and test error, improves test efficiency.
Accompanying drawing explanation
Fig. 1 is handcart switch return circuit resistance test rivet type cable clamp structural representation.
Fig. 2 is handcart switch return circuit resistance test rivet type cable clamp operation chart.
Label declaration 1 conductive test arm 2 hollow conduction pipe 3 screw rod 4 handle 5 connection terminal 6 wheelbarrow switch contact tube 7 wheelbarrow switch plum blossom fingertip 8 rubs line.
Embodiment
Below in conjunction with embodiment, the present invention is described in more detail.
Embodiment 1
A kind of handcart switch return circuit resistance test rivet type cable clamp as shown in Figure 1-2, include the hollow conduction pipe of a section, the conductive test arm of one section is provided with in an end of hollow conduction pipe, described conductive test arm is that the component being circular arc by the outside surface between the upper and lower every symmetric offset spread forms, the forward surface of two components is provided with the lozenges of symmetric offset spread, this lozenges extends along the length direction of two components, dehiscing of the other end is greater than in dehiscing between two lozenges of hollow conduction pipe, a hollow handle is provided with in the other end of hollow conduction pipe, the inner chamber of handle is provided with internal thread, handle is made up of conductive material, an insulation course is enclosed with at the outer peripheral face of handle, also include the screw rod of a section, one end of screw rod is provided with spacer, screw rod extend into hollow conduction pipe by the internal thread of handle and leads between two components, the spacer of screw rod is followed screw rod and is moved reciprocatingly between hollow conduction pipe and two components, and the external diameter of screw rod spacer should be larger than the distance of two components of most of length between the place of same transversal section, handle is also provided with the more than one connection terminal of straight-through handle conductive layer.Friction line 8 is distributed with at the outside surface of two components of circular arc.The transversal section of the lozenges on two described component forward surfaces is arcwall face.Dismountable handle is also provided with at the other end of screw rod.Described keeper is circular gasket.
A kind of handcart switch return circuit resistance test rivet type cable clamp of the present invention is specially and comprises conductive test arm 1, hollow conduction pipe 2, screw rod 3 and handle 4 four parts.Described test arm 1 is copper material, and point upper and lower two parts, surface is the two annular flank of tooth, and diameter is 20mm, and inner side is wedge shape, and length is 45mm.Described hollow conduction pipe 2 is hollow steel pipe, internal diameter 15mm, external diameter 20, about length 45mm.Described screw rod 3 about length 150mm, screw rod bottom welding circular gasket, top is provided with rotatable grip.Described handle 4 adopts steel to make, and its surperficial outer insulating material is light-duty insulating material, and handle 4 lower end is provided with the connection terminal 5 that can be flexibly connected with the current line of circuit resistance tester, current potential sample line.Described connection terminal is made up of screw rod and nut, and be fixed on bottom screw rod on handle 4, nut is detachable.
During use, the current line of circuit resistance tester and current potential sample line are connected with the connection terminal on handle 4.Test arm 1 is put in wheelbarrow switch plum blossom fingertip 7, directly contact with wheelbarrow switch contact tube 6 copper pipe inwall through wheelbarrow switch plum blossom fingertip, adjustment adds long bolt 3 makes screw rod bottom gasket promotion test arm 1 make it to open, thus make the test arm flank of tooth and tested copper pipe inwall close contact, utilize circuit resistance tester accurately can carry out loop resistance test
It is same as the prior art that the present embodiment does not state part.
Claims (5)
1. a handcart switch return circuit resistance test rivet type cable clamp, it is characterized in that: the hollow conduction pipe including a section, the conductive test arm of one section is provided with in an end of hollow conduction pipe, described conductive test arm is that two components being circular arc by the outside surface between the upper and lower every symmetric offset spread form, the forward surface of two components is provided with the lozenges of symmetric offset spread, this lozenges extends along the length direction of two components, dehiscing of the other end is greater than in dehiscing between two lozenges of hollow conduction pipe, a hollow handle is provided with in the other end of hollow conduction pipe, the inner chamber of handle is provided with internal thread, handle is made up of conductive material, an insulation course is enclosed with at the outer peripheral face of handle, also include the screw rod of a section, one end of screw rod is provided with spacer, screw rod extend into hollow conduction pipe by the internal thread of handle and leads between two components, the spacer of screw rod is followed screw rod and is moved reciprocatingly between hollow conduction pipe and two components, and the external diameter of screw rod spacer should be larger than the distance of two components of most of length between the place of same transversal section, handle is also provided with the more than one connection terminal of straight-through handle conductive layer.
2. handcart switch return circuit resistance test rivet type cable clamp according to claim 1, is characterized in that: be distributed with friction line at the outside surface of two components of circular arc.
3. handcart switch return circuit resistance test rivet type cable clamp according to claim 2, is characterized in that: be also provided with dismountable handle at the other end of screw rod.
4. handcart switch return circuit resistance test rivet type cable clamp according to claim 3, is characterized in that: the spacer of described screw rod is pad.
5. handcart switch return circuit resistance test rivet type cable clamp according to claim 4, is characterized in that: described connection terminal is made up of screw rod and nut, and be fixed on handle bottom screw rod, nut is detachable.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310033708.2A CN103091519B (en) | 2013-01-29 | 2013-01-29 | Handcart switch return circuit resistance test rivet type cable clamp |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310033708.2A CN103091519B (en) | 2013-01-29 | 2013-01-29 | Handcart switch return circuit resistance test rivet type cable clamp |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103091519A CN103091519A (en) | 2013-05-08 |
| CN103091519B true CN103091519B (en) | 2015-04-08 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310033708.2A Active CN103091519B (en) | 2013-01-29 | 2013-01-29 | Handcart switch return circuit resistance test rivet type cable clamp |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103091519B (en) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105424986B (en) * | 2015-11-24 | 2019-02-15 | 国网福建省电力有限公司 | A kind of auxiliary device for 10kv vacuum circuit breaker high-potting |
| CN105388362B (en) * | 2015-11-25 | 2018-03-16 | 国家电网公司 | Killer switch direct current resistance m easurem ent device |
| CN109406881A (en) * | 2018-12-11 | 2019-03-01 | 国家电网有限公司 | Handcart-type switch loop resistance tests special vice |
| CN114137312B (en) * | 2020-11-02 | 2023-12-22 | 国网冀北电力有限公司检修分公司 | Loop resistance test assembly |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201852920U (en) * | 2010-11-30 | 2011-06-01 | 山东电力集团公司威海供电公司 | Loop resistance test pliers head of handcart switch |
| CN202094509U (en) * | 2011-06-15 | 2011-12-28 | 沧州供电公司 | Finger touching electrification fastening device for disconnecting switch |
| CN102590742A (en) * | 2012-03-07 | 2012-07-18 | 山东电力集团公司枣庄供电公司 | Loop resistance measuring pliers for trolley type switch |
| CN202351274U (en) * | 2011-12-12 | 2012-07-25 | 山东电力集团公司东营供电公司 | Switch contact resistance measuring pliers |
| CN202383159U (en) * | 2011-11-04 | 2012-08-15 | 嘉兴市恒欣电力建设有限公司 | Loop resistance testing and measuring apparatus |
| CN203164214U (en) * | 2013-01-29 | 2013-08-28 | 福建省电力有限公司 | Handcart switch loop resistance test rivet type cable clamp |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP4678034B2 (en) * | 2008-03-25 | 2011-04-27 | Ｎｅｃインフロンティア株式会社 | Inspection jig |
-
2013
- 2013-01-29 CN CN201310033708.2A patent/CN103091519B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201852920U (en) * | 2010-11-30 | 2011-06-01 | 山东电力集团公司威海供电公司 | Loop resistance test pliers head of handcart switch |
| CN202094509U (en) * | 2011-06-15 | 2011-12-28 | 沧州供电公司 | Finger touching electrification fastening device for disconnecting switch |
| CN202383159U (en) * | 2011-11-04 | 2012-08-15 | 嘉兴市恒欣电力建设有限公司 | Loop resistance testing and measuring apparatus |
| CN202351274U (en) * | 2011-12-12 | 2012-07-25 | 山东电力集团公司东营供电公司 | Switch contact resistance measuring pliers |
| CN102590742A (en) * | 2012-03-07 | 2012-07-18 | 山东电力集团公司枣庄供电公司 | Loop resistance measuring pliers for trolley type switch |
| CN203164214U (en) * | 2013-01-29 | 2013-08-28 | 福建省电力有限公司 | Handcart switch loop resistance test rivet type cable clamp |
Also Published As
| Publication number | Publication date |
|---|---|
| CN103091519A (en) | 2013-05-08 |
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