CN204086318U - loop resistance test fixture - Google Patents
loop resistance test fixture Download PDFInfo
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- CN204086318U CN204086318U CN201420467540.6U CN201420467540U CN204086318U CN 204086318 U CN204086318 U CN 204086318U CN 201420467540 U CN201420467540 U CN 201420467540U CN 204086318 U CN204086318 U CN 204086318U
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- resistance test
- test fixture
- clamping
- loop resistance
- conductor
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Abstract
The utility model provides a kind of loop resistance test fixture, comprises support and two wire clamps be arranged on support.Two wire clamps are oppositely arranged, and are provided with multiple projection on the clamping face of wire clamp.By regulating the distance between two wire clamps, clamping can be realized to the conductor of different-diameter.And, clamping face is provided with projection, clamping face can be increased and by the friction force clamped between conductor, to prevent conductor landing, thus be convenient to clamping.And the surface due to projection is plane or curved surface.Therefore, when conductor clamp is in clamping part, the contact between clamping face and conductive surface is linear contact lay, thus local pressure can be prevented excessive and cause damage to conductive surface.Therefore, above-mentioned loop resistance test fixture can effectively prevent from damaging conductor while being convenient to clamping.
Description
Technical field
The utility model relates to circuit measuring technology, particularly relates to a kind of loop resistance test fixture.
Background technology
After GIS (sulfur hexafluoride sealed combination electrical equipment) handing-over or overhaul, for ensureing GIS security of operation, need the test it being carried out to loop resistance.But the connection of GIS outlet high-voltgae pothead and GIS conductor is positioned at GIS cable bin.Generally need through the hand-held wire clamp touching cable end metal position of cable bin hand hole and interval outlet ground cutter.But the locus provided due to cable bin hand hole is narrow and small, artificial hand-held Blind Test has personal electric shock risk, and measuring accuracy also cannot ensure.
Therefore, fixture need be used to carry out clamping measure.But existing binding clip bore is smaller, cannot be clipped in the both sides of cable end.And in order to prevent coming off, the clamping face of general binding clip is all provided with groove.Therefore, when the binding clip with groove is when touching conductor, the metal fines landing of conductive surface may be caused, thus produce shelf depreciation after causing putting into operation, cause GIS device to there is potential safety hazard.
Utility model content
Based on this, be necessary to provide one to be convenient to clamping, and effectively can prevent the loop resistance test fixture damaging conductor.
A kind of loop resistance test fixture, for the clamping conductor when measuring, described loop resistance test fixture comprises:
Support; And
Wire clamp in tabular, described wire clamp is two, and two described wire clamps are arranged at the two ends of described support respectively, and are oppositely arranged, and to form the clamping part for clamping described conductor, the distance between two described wire clamps can change;
Wherein, the one side that described two wire clamps are oppositely arranged is clamping face, and described clamping face is arranged at intervals with multiple projection, and the end face of described projection is curved surface or plane.
Wherein in an embodiment, described support is U-shaped, and described support comprises Liang Ge branch, and two described wire clamps are arranged in described Liang Ge branch respectively.
Wherein in an embodiment, described support also comprises screw mandrel, and one end of described support offers screw, described screw mandrel and described screwhole spiro bonding, and one end and wire clamp described in one of them are in transmission connection.
Wherein in an embodiment, described wire clamp curves inwardly, to make the curved concave surface of described clamping face.
Wherein in an embodiment, described projection is trapezoidal and/or circular protrusions.
Wherein in an embodiment, described clamping face offers the groove of multiple del, to form described projection.
Wherein in an embodiment, the radius-of-curvature of described clamping face is 128 centimetres, 7 centimetres, interval between two described grooves.
Wherein in an embodiment, described wire clamp is provided with connecting ring.
Above-mentioned loop resistance test fixture, by regulating the distance between two wire clamps, can realize clamping to the conductor of different-diameter.And, clamping face is provided with projection, clamping face can be increased and by the friction force clamped between conductor, to prevent conductor landing, thus be convenient to clamping.And the end face due to projection is plane or curved surface.Therefore, when conductor clamp is in clamping part, the contact between clamping face and conductive surface is linear contact lay, thus local pressure can be prevented excessive and cause damage to conductive surface.Therefore, above-mentioned loop resistance test fixture can effectively prevent from damaging conductor while being convenient to clamping.
Accompanying drawing explanation
Fig. 1 is the structural representation of loop resistance test fixture in the utility model preferred embodiment;
Fig. 2 is the structural representation of wire clamp in the test fixture of loop resistance shown in Fig. 1.
Embodiment
For the ease of understanding the utility model, below with reference to relevant drawings, the utility model is described more fully.Preferred embodiment of the present utility model is given in accompanying drawing.But the utility model can realize in many different forms, is not limited to embodiment described herein.On the contrary, provide the object of these embodiments be make the understanding of disclosure of the present utility model more comprehensively thorough.
It should be noted that, when element is called as " being fixed on " another element, directly can there is element placed in the middle in it on another element or also.When an element is considered to " connection " another element, it can be directly connected to another element or may there is centering elements simultaneously.
Unless otherwise defined, all technology used herein and scientific terminology are identical with belonging to the implication that those skilled in the art of the present utility model understand usually.The object of the term used in instructions of the present utility model herein just in order to describe specific embodiment, is not intended to be restriction the utility model.Term as used herein " and/or " comprise arbitrary and all combinations of one or more relevant Listed Items.
Refer to Fig. 1, the loop resistance test fixture 100 in the utility model preferred embodiment comprises support 110 and wire clamp 120.Loop resistance test fixture 100 is for the clamping conductor when measuring.
110, support supports and connection function.Support 110 is generally made up of aluminium alloy, also can be made up of the material that the hardness such as stainless steel are higher.Concrete support 110 is U-shaped in the present embodiment, and support 110 comprises Liang Ge branch (figure does not mark).
Wire clamp 120 is made up of conductive material.Wire clamp 120 is in tabular, therefore holding area is larger.Wire clamp 120 is two, and two wire clamps 120 are arranged at the two ends of support 110 respectively, and are oppositely arranged, to form the clamping part (figure does not mark) for clamping conductor.Concrete, two wire clamps 120 are arranged in the Liang Ge branch of support 110 respectively.Distance between two wire clamps 120 can change.Therefore, by adjustment distance between the two, can clamp conductor or decontrol, and the conductor of different-diameter is clamped.
In the present embodiment, support 110 also comprises screw mandrel 112, and one end of support 110 offers screw (not shown).Screw mandrel 112 and screwhole spiro bonding, and one end and one of them wire clamp 120 are in transmission connection.By rotary screw rod 112, thus drive one of them wire clamp 120 to move relative to another wire clamp 120, and then change the distance between two wire clamps 120.
Be appreciated that in other are implemented, also realize the adjustment of the spacing of two wire clamps 120 by structures such as hydraulically extensible bar, slide rails.
Wherein, the one side that two wire clamps 120 are oppositely arranged is clamping face 121, clamping face 121 is arranged at intervals with multiple protruding 123, and the end face of protruding 123 is curved surface or plane.Therefore, when conductor clamp is in clamping part, the contact between clamping face 121 and conductive surface is linear contact lay, thus local pressure can be prevented excessive and cause damage to conductive surface.
In the present embodiment, wire clamp 120 curves inwardly, to make the curved concave surface of clamping face 121.Conductor is generally cylindrical, and the structure of arc-shaped concave can be conducive to contacting with conductive surface.For columniform conductor, the clamping face 121 of curved concave surface can effectively clamp, thus prevents its landing.
In the present embodiment, clamping face 121 offers the groove 125 of multiple del, to form protruding 123.By offering the groove 125 of del, the surface of clamping face 121 is formed multiple spaced in trapezoidal projection.
Further, the radius-of-curvature of clamping face 121 is 128 centimetres, 7 centimetres, interval between two grooves 125.
Be appreciated that in other embodiments, protruding 123 also can be trapezoidal and/or circular protrusions, and other structures that clamping face 121 and conductor can be made to realize face contact.And interval is also not limited to as mentioned above between the radius-of-curvature of clamping face 121 and groove 125.
In the present embodiment, wire clamp 120 is provided with connecting ring 127.When connecting ring 127 is convenient to carry out resistance test to loop, pressure-wire or current line realize being electrically connected with wire clamp 120.
Loop resistance test fixture 100, by regulating the distance between two wire clamps 120, can realize clamping to the conductor of different-diameter.And, clamping face 121 is provided with protruding 123, clamping face 121 can be increased and by the friction force clamped between conductor, to prevent conductor landing, thus be convenient to clamping.And, because the end face of protruding 123 is plane or curved surface.Therefore, when conductor clamp is in clamping part, the contact between clamping face 121 and conductive surface is linear contact lay, thus local pressure can be prevented excessive and cause damage to conductive surface.Therefore, loop resistance test fixture 100 can effectively prevent from damaging conductor while being convenient to clamping.
The above embodiment only have expressed several embodiment of the present utility model, and it describes comparatively concrete and detailed, but therefore can not be interpreted as the restriction to the utility model the scope of the claims.It should be pointed out that for the person of ordinary skill of the art, without departing from the concept of the premise utility, can also make some distortion and improvement, these all belong to protection domain of the present utility model.Therefore, the protection domain of the utility model patent should be as the criterion with claims.
Claims (8)
1. a loop resistance test fixture, for the clamping conductor when measuring, it is characterized in that, described loop resistance test fixture comprises:
Support; And
Wire clamp in tabular, described wire clamp is two, and two described wire clamps are arranged at the two ends of described support respectively, and are oppositely arranged, and to form the clamping part for clamping described conductor, the distance between two described wire clamps can change;
Wherein, the one side that described two wire clamps are oppositely arranged is clamping face, and described clamping face is arranged at intervals with multiple projection, and the end face of described projection is curved surface or plane.
2. loop resistance test fixture according to claim 1, is characterized in that, described support is U-shaped, and described support comprises Liang Ge branch, and two described wire clamps are arranged in described Liang Ge branch respectively.
3. loop resistance test fixture according to claim 1, is characterized in that, described support also comprises screw mandrel, and one end of described support offers screw, described screw mandrel and described screwhole spiro bonding, and one end and wire clamp described in one of them are in transmission connection.
4. loop resistance test fixture according to claim 1, is characterized in that, described wire clamp curves inwardly, to make the curved concave surface of described clamping face.
5. loop resistance test fixture according to claim 4, is characterized in that, described projection is trapezoidal and/or circular protrusions.
6. loop resistance test fixture according to claim 4, is characterized in that, described clamping face offers the groove of multiple del, to form described projection.
7. loop resistance test fixture according to claim 6, is characterized in that, the radius-of-curvature of described clamping face is 128 centimetres, 7 centimetres, interval between two described grooves.
8. loop resistance test fixture according to claim 1, is characterized in that, described wire clamp is provided with connecting ring.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420467540.6U CN204086318U (en) | 2014-08-18 | 2014-08-18 | loop resistance test fixture |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420467540.6U CN204086318U (en) | 2014-08-18 | 2014-08-18 | loop resistance test fixture |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204086318U true CN204086318U (en) | 2015-01-07 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420467540.6U Active CN204086318U (en) | 2014-08-18 | 2014-08-18 | loop resistance test fixture |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204086318U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105866479A (en) * | 2016-05-25 | 2016-08-17 | 黑龙江省电力有限公司牡丹江水力发电总厂 | Special clamp for test on low pressure side of main transformer |
| CN110441556A (en) * | 2019-07-24 | 2019-11-12 | 安徽科技学院 | A kind of fixed device of curved surface electric instrument |
-
2014
- 2014-08-18 CN CN201420467540.6U patent/CN204086318U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105866479A (en) * | 2016-05-25 | 2016-08-17 | 黑龙江省电力有限公司牡丹江水力发电总厂 | Special clamp for test on low pressure side of main transformer |
| CN110441556A (en) * | 2019-07-24 | 2019-11-12 | 安徽科技学院 | A kind of fixed device of curved surface electric instrument |
| CN110441556B (en) * | 2019-07-24 | 2021-07-13 | 安徽科技学院 | Curved surface electric power instrument fixing device |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |