CN208043937U - Loop resistance test wire jointing clamp and loop resistance tester - Google Patents
Loop resistance test wire jointing clamp and loop resistance tester Download PDFInfo
- Publication number
- CN208043937U CN208043937U CN201820639589.3U CN201820639589U CN208043937U CN 208043937 U CN208043937 U CN 208043937U CN 201820639589 U CN201820639589 U CN 201820639589U CN 208043937 U CN208043937 U CN 208043937U
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- inlay
- loop resistance
- contact
- test wire
- resistance test
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- 238000012360 testing method Methods 0.000 title claims abstract description 53
- 229920001971 elastomer Polymers 0.000 claims abstract description 17
- 239000000806 elastomer Substances 0.000 claims abstract description 14
- 239000004593 Epoxy Substances 0.000 claims description 3
- 210000000080 chela (arthropods) Anatomy 0.000 description 9
- 230000009286 beneficial effect Effects 0.000 description 4
- 230000000694 effects Effects 0.000 description 4
- 241000722921 Tulipa gesneriana Species 0.000 description 3
- 239000011810 insulating material Substances 0.000 description 3
- 210000001503 joint Anatomy 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 230000001771 impaired effect Effects 0.000 description 2
- 238000010030 laminating Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 238000010998 test method Methods 0.000 description 2
- 241000270728 Alligator Species 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
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- Switch Cases, Indication, And Locking (AREA)
Abstract
The utility model relates to a loop resistance test wire jointing clamp and a loop resistance tester, wherein the loop resistance test wire jointing clamp comprises a first inlay, a second inlay and an elastic body which are hinged with each other; wherein the first inlay includes first and second oppositely disposed ends; the second inlay includes first and second oppositely disposed ends; the first end of the first inlay and the first end of the second inlay are used for being abutted against the inner wall of a contact of a handcart switch; the second end of the first inlay and the second end of the second inlay are both used for connecting a test wire; the elastomer is connected the first end of first inlay with between the first end of second inlay, the both ends of elastomer are used for respectively to the first end of first inlay with the first end of second inlay provides the elastic force, so that the first end of first inlay with the second end of second inlay keeps the butt respectively with the inner wall of handcart switch's contact.
Description
Technical Field
The utility model belongs to the technical field of the electric power tool technique and specifically relates to a return circuit resistance test line wiring pincers and return circuit resistance tester are related to.
Background
At present, in the test work of the loop resistance of the switch equipment of the transformer substation, two types of test line chucks are mainly used, namely an alligator mouth type chuck and a scissor head type chuck. Wherein, to GIS equipment, perhaps to open circuit breaker etc. above-mentioned chuck all can normal use, generally can not cause the damage to equipment.
However, for a 10kv hand truck switch, this switch configuration has a tulip contact. The spring on the plum blossom contact is easy to generate heat under the action of large current, and the spring of the plum blossom contact is easy to lose elasticity and become brittle at high temperature, even has the condition of direct fracture, and finally causes the damage of equipment, and the condition is not allowed in the working process.
At present, the wiring clamps manufactured by manufacturers of various loop resistance testers do not consider the situation, so that the wire clamps through which large current flows are inconvenient to apply to handcart switches. Staff usually adopt with the current clamp at the contact edge in order to avoid the spring, perhaps, adopt insulating materials such as insulating rubber mat to place between clip and spring, avoid both direct contact, block that the electric current flows through the spring.
In summary, the existing loop resistance test wire clamp needs a user to consider avoiding the spring, which causes inconvenience for the user to use the wire clamp, in other words, the wire clamp is low in convenience.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a return circuit resistance test wire binding clip to solve the technical problem that the use convenience of the return circuit resistance test wire clamp that exists is low among the prior art.
The utility model provides a loop resistance test wire jointing clamp, which comprises a first inlay, a second inlay and an elastic body, wherein the first inlay and the second inlay are hinged with each other; wherein,
the first inlay includes first and second oppositely disposed ends;
the second inlay includes first and second oppositely disposed ends;
the first end of the first inlay and the first end of the second inlay are used for being abutted against the inner wall of a contact of a handcart switch;
the second end of the first inlay and the second end of the second inlay are both used for connecting a test wire;
the elastomer is connected the first end of first inlay with between the first end of second inlay, the both ends of elastomer are used for respectively to the first end of first inlay with the first end of second inlay provides the elastic force, so that the first end of first inlay with the second end of second inlay keeps the butt respectively with the inner wall of handcart switch's contact.
As a further improvement of the above technical solution, the elastic body is a coil spring.
As a further improvement of the above technical solution, a first clamping groove is provided on a first end of the first inlay;
a second clamping groove is formed in the first end of the second inlay;
and the two ends of the spiral spring are clamped with the first clamping groove and the second clamping groove in a one-to-one corresponding manner.
As a further improvement of the above technical solution, two ends of the coil spring are welded to the first end of the first inlay and the second end of the second inlay in one-to-one correspondence.
As a further improvement of the above technical solution, a first end of the first inlay is provided with a contact part, and the first end of the first inlay is in contact with an inner wall of a contact of the handcart switch through the contact part;
and the abutting surface of the abutting part is matched with the inner wall of the contact of the handcart switch.
As a further improvement of the above technical solution, a first end of the second inlay is provided with a contact part, and the first end of the second inlay is in contact with an inner wall of a contact of the handcart switch through the contact part;
and the abutting surface of the abutting part is matched with the inner wall of the contact of the handcart switch.
As a further improvement of the above technical solution, an insulating handle is sleeved on the second end of the first inlay.
As a further improvement of the above technical solution, an insulating handle is sleeved on the second end of the second inlay.
As a further improvement of the technical scheme, the insulating handle is an epoxy sleeve.
The utility model provides a loop resistance test wire jointing clamp, which comprises a first inlay, a second inlay and an elastic body, wherein the first inlay and the second inlay are hinged with each other; wherein the first inlay includes a first end and a second end disposed opposite one another; the second inlay includes first and second ends disposed in opposition; the first end of the first inlay and the first end of the second inlay are used for being abutted against the inner wall of the contact of the handcart switch; the second end of the first inlay and the second end of the second inlay are both used for connecting a test wire; the elastomer is connected between the first end of first inlay and the first end of second inlay, and the both ends of elastomer are used for providing the elastic force to the first end of first inlay and the first end of second inlay respectively to the inner wall that makes the first end of first inlay and the second end of second inlay and handcart switch's contact keeps the butt respectively.
During specific application, make the second end of first inlay and the second end of second inlay keep away from each other through external force, because first inlay and second inlay are articulated each other, then the first end of first inlay and the first end of second inlay are close to, at this moment, stretch into in the contact of handcart switch with the first end of first inlay and the first end of second inlay in step, make two first ends correspond with the inner wall of contact, remove external force, under the elastic force effect of elastic component, the first end of first inlay and the first end of second inlay respectively with the inner wall butt of contact, so, accomplish the test promptly and lay.
In the prior art, a spring on a tulip contact of a tester is easy to generate heat under the action of large current, or easily loses elasticity and becomes brittle at high temperature, even the situation of direct fracture occurs, and finally equipment is damaged. Staff usually adopt with the current clamp at the contact edge in order to avoid the spring, perhaps, adopt insulating materials such as insulating rubber mat to place between clip and spring, avoid both direct contact, block that the electric current flows through the spring.
Compared with the prior art, the utility model provides a loop resistance test line wire connection pincers, second through the first end at first inlay and second inlay sets up the elastomer between holding, make whole wire connection pincers can independently with the inner wall butt of contact, accomplish whole test procedure, it in the application not with the contact on the contact spring contact, the situation that the spring becomes fragile because of generating heat under the effect of heavy current or losing elasticity under high temperature can not appear, the spring on the contact has been protected well, and, the staff needn't consider the impaired problem of contact spring when using this wire connection pincers, but direct operation, its convenience of use improves by a wide margin.
Another object of the present invention is to provide a loop resistance tester, which comprises two testing wires and the loop resistance testing wire jointing clamp; wherein,
and the second end of the first inlay and the second end of the second inlay of the loop resistance test wire jointing clamp are respectively connected with the two test wires.
The utility model provides a circuit resistance tester compares in prior art's beneficial effect, is identical to the utility model provides a circuit resistance test line wiring pincers compares in prior art's beneficial effect, and it is no longer repeated here.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the embodiments or the technical solutions in the prior art will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.
Fig. 1 is a first schematic view of a loop resistance test wire jointing clamp according to an embodiment of the present invention;
fig. 2 is a second schematic view of a loop resistance test wire jointing clamp according to an embodiment of the present invention;
fig. 3 is a third schematic view of a loop resistance test wire jointing clamp according to an embodiment of the present invention;
fig. 4 is an application schematic diagram of the loop resistance tester provided by the embodiment of the present invention.
Reference numerals:
10-a first inlay; 20-a second inlay; 30-an elastomer;
40-an insulated handle; 101-an abutment; 100-wire pliers;
200-a contact; 300-test line.
Detailed Description
The technical solution of the present invention will be described clearly and completely with reference to the accompanying drawings, and obviously, the described embodiments are some, but not all embodiments of the present invention. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.
Fig. 1 is a first schematic view of a loop resistance test wire jointing clamp according to an embodiment of the present invention; fig. 2 is a second schematic view of a loop resistance test wire jointing clamp according to an embodiment of the present invention; fig. 3 is a third schematic view of a loop resistance test wire jointing clamp according to an embodiment of the present invention; fig. 4 is an application schematic diagram of the loop resistance tester provided by the embodiment of the present invention.
Referring to fig. 1 to 4, a loop resistance test wire pliers according to an embodiment of the present invention includes a first inlay 10 and a second inlay 20 hinged to each other, and an elastic body 30; wherein the first inlay 10 includes first and second oppositely disposed ends; the second inlay 20 includes oppositely disposed first and second ends; the first end of the first inlay 10 and the first end of the second inlay 20 are used for abutting against the inner wall of the contact 200 of the handcart switch; the second end of the first inlay 10 and the second end of the second inlay 20 are both used for connecting a test wire 300; the elastomer 30 is connected the first end of first inlay 10 with between the first end of second inlay 20, the both ends of elastomer 30 are used for respectively to the first end of first inlay 10 with the first end of second inlay 20 provides the elastic force, so that the first end of first inlay 10 with the second end of second inlay 20 keeps the butt respectively with the inner wall of handcart switch's contact 200.
During specific application, make the second end of first inlay and the second end of second inlay keep away from each other through external force, because first inlay and second inlay are articulated each other, then the first end of first inlay and the first end of second inlay are close to, at this moment, stretch into in the contact of handcart switch with the first end of first inlay and the first end of second inlay in step, make two first ends correspond with the inner wall of contact, remove external force, under the elastic force effect of elastic component, the first end of first inlay and the first end of second inlay respectively with the inner wall butt of contact, so, accomplish the test promptly and lay.
In the prior art, a spring on a tulip contact of a tester is easy to generate heat under the action of large current, or easily loses elasticity and becomes brittle at high temperature, even the situation of direct fracture occurs, and finally equipment is damaged. Staff usually adopt with the current clamp at the contact edge in order to avoid the spring, perhaps, adopt insulating materials such as insulating rubber mat to place between clip and spring, avoid both direct contact, block that the electric current flows through the spring.
Compared with the prior art, the utility model provides a loop resistance test line wire connection pincers, first end through at first inlay and the first end of second inlay set up the elastomer between, make whole wire connection pincers can independently with the inner wall butt of contact, accomplish whole test procedure, it in the application not with the contact on the contact spring contact, the situation that the spring becomes fragile because of generating heat under the effect of heavy current or losing elasticity under high temperature can not appear, the spring on the contact has been protected well, and, the staff needn't consider the impaired problem of contact spring when using this wire connection pincers, but direct operation, its convenience of use improves by a wide margin.
Among them, the elastic body 30 is preferably a coil spring.
In the first embodiment, a first clamping groove is arranged on the first end of the first inlay 10; a second clamping groove is formed in the first end of the second inlay 20; and the two ends of the spiral spring are clamped with the first clamping groove and the second clamping groove in a one-to-one corresponding manner.
In a second embodiment, both ends of the coil spring are welded in one-to-one correspondence with the first end of the first inlay and the second end of the second inlay.
A first end of the first inlay 10 is provided with a contact part 101, and the first end of the first inlay 10 is contacted with the inner wall of the contact 200 of the handcart switch through the contact part 101; the butt joint face of butt joint portion 101 matches with the inner wall of handcart switch's contact 200 to make the better laminating butt of first inlay 10 and contact 200's inner wall, prevent wearing and tearing the inner wall of first inlay 10 or contact 200, prevent simultaneously that first inlay 10 butt is bad to cause whole wire holder 100 to drop.
A contact part 101 is arranged at a first end of the second inlay 20, and the first end of the second inlay 20 is contacted with the inner wall of the contact 200 of the handcart switch through the contact part 101; the butt joint face of butt portion 101 matches with the inner wall of handcart switch's contact 200 to make the better laminating butt of second inlay 20 with the inner wall of contact, prevent wearing and tearing second inlay 20 or contact 200's inner wall, prevent simultaneously that second inlay 20 butt is bad to cause whole wire holder to drop.
Wherein, the second end of first inlay 10 has cup jointed insulating handle 40, the second end of second inlay 20 has cup jointed insulating handle 40, insulating handle 40 is the epoxy sleeve pipe to the staff's operation is convenient for.
It is another object of the embodiments of the present invention to provide a loop resistance tester, which includes two testing wires 300 and the loop resistance testing wire jointing clamp 100 as described above; wherein, the first end of the first inlay 10 and the first end of the second inlay of the loop resistance test wire connector clamp 100 are respectively abutted with the inner wall of the contact 200; the second end of the first inlay 10 and the second end of the second inlay 20 of the loop resistance test wire connector clamp 100 are connected to the two test wires 300, respectively.
The embodiment of the utility model provides a circuit resistance tester compares in prior art's beneficial effect, is identical to the embodiment of the utility model provides a circuit resistance test line wiring pincers compares in prior art's beneficial effect, and it is no longer repeated here.
Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit the same; although the present invention has been described in detail with reference to the foregoing embodiments, it should be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; such modifications and substitutions do not depart from the spirit and scope of the present invention.
Claims (10)
1. A loop resistance test wire jointing clamp is characterized by comprising a first inlay body, a second inlay body and an elastic body, wherein the first inlay body and the second inlay body are hinged with each other; wherein,
the first inlay includes first and second oppositely disposed ends;
the second inlay includes first and second oppositely disposed ends;
the first end of the first inlay and the first end of the second inlay are used for being abutted against the inner wall of a contact of a handcart switch;
the second end of the first inlay and the second end of the second inlay are both used for connecting a test wire;
the elastomer is connected the first end of first inlay with between the first end of second inlay, the both ends of elastomer are used for respectively to the first end of first inlay with the first end of second inlay provides the elastic force, so that the first end of first inlay with the second end of second inlay keeps the butt respectively with the inner wall of handcart switch's contact.
2. The loop resistance test wire pliers of claim 1, wherein the elastomer is a coil spring.
3. The loop resistance test wire pliers of claim 2, wherein a first snap groove is provided on the first end of the first inlay;
a second clamping groove is formed in the first end of the second inlay;
and the two ends of the spiral spring are clamped with the first clamping groove and the second clamping groove in a one-to-one corresponding manner.
4. The loop resistance test wire vice of claim 2, wherein both ends of the coil spring are welded in one-to-one correspondence with the first end of the first inlay and the second end of the second inlay.
5. The loop resistance test wire jointing clamp according to claim 1, wherein a butting part is arranged on the first end of the first inlay, and the first end of the first inlay is butted with the inner wall of a contact of a handcart switch through the butting part;
and the abutting surface of the abutting part is matched with the inner wall of the contact of the handcart switch.
6. The loop resistance test wire jointing clamp according to claim 1, wherein a butting part is arranged on the first end of the second inlay, and the first end of the second inlay is butted with the inner wall of the contact of the handcart switch through the butting part;
and the abutting surface of the abutting part is matched with the inner wall of the contact of the handcart switch.
7. The loop resistance test wire pliers of claim 1, wherein an insulated handle is sleeved over the second end of the first inlay.
8. The loop resistance test wire pliers of claim 1, wherein an insulated handle is sleeved over the second end of the second inlay.
9. The loop resistance test wire pliers according to any one of claims 7 or 8, wherein the insulated handle is an epoxy sleeve.
10. A loop resistance tester comprising two test wires and a loop resistance test wire pliers according to any one of claims 1 to 9; wherein,
and the second end of the first inlay and the second end of the second inlay of the loop resistance test wire jointing clamp are respectively connected with the two test wires.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820639589.3U CN208043937U (en) | 2018-04-28 | 2018-04-28 | Loop resistance test wire jointing clamp and loop resistance tester |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820639589.3U CN208043937U (en) | 2018-04-28 | 2018-04-28 | Loop resistance test wire jointing clamp and loop resistance tester |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208043937U true CN208043937U (en) | 2018-11-02 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820639589.3U Active CN208043937U (en) | 2018-04-28 | 2018-04-28 | Loop resistance test wire jointing clamp and loop resistance tester |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208043937U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109444486A (en) * | 2019-01-08 | 2019-03-08 | 国网山东省电力公司泰安供电公司 | Testing clamp and central cabinet circuit breaker loop resistance test device |
-
2018
- 2018-04-28 CN CN201820639589.3U patent/CN208043937U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109444486A (en) * | 2019-01-08 | 2019-03-08 | 国网山东省电力公司泰安供电公司 | Testing clamp and central cabinet circuit breaker loop resistance test device |
| CN109444486B (en) * | 2019-01-08 | 2024-05-24 | 国网山东省电力公司泰安供电公司 | Test clamp and circuit breaker loop resistance test device of centrally installed switchgear |
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