CN113985103B - Current clamp for measured current carrying wire alignment - Google Patents
Current clamp for measured current carrying wire alignment Download PDFInfo
- Publication number
- CN113985103B CN113985103B CN202111239613.7A CN202111239613A CN113985103B CN 113985103 B CN113985103 B CN 113985103B CN 202111239613 A CN202111239613 A CN 202111239613A CN 113985103 B CN113985103 B CN 113985103B
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- CN
- China
- Prior art keywords
- clamp arm
- clamp
- test
- arm
- piece
- 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.)
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- 238000012360 testing method Methods 0.000 claims abstract description 83
- 239000004020 conductor Substances 0.000 claims 2
- 239000007790 solid phase Substances 0.000 claims 1
- 238000012423 maintenance Methods 0.000 abstract description 4
- 230000009286 beneficial effect Effects 0.000 description 2
- 210000000080 chela (arthropods) Anatomy 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R19/00—Arrangements for measuring currents or voltages or for indicating presence or sign thereof
- G01R19/0092—Arrangements for measuring currents or voltages or for indicating presence or sign thereof measuring current only
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R1/00—Details of instruments or arrangements of the types included in groups G01R5/00 - G01R13/00 and G01R31/00
- G01R1/02—General constructional details
- G01R1/04—Housings; Supporting members; Arrangements of terminals
- G01R1/0408—Test fixtures or contact fields; Connectors or connecting adaptors; Test clips; Test sockets
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R1/00—Details of instruments or arrangements of the types included in groups G01R5/00 - G01R13/00 and G01R31/00
- G01R1/02—General constructional details
- G01R1/06—Measuring leads; Measuring probes
- G01R1/067—Measuring probes
Abstract
The invention discloses a current clamp for a measured current carrying wire pair, which comprises the following components: the device comprises a shell, a test clamp body, a spanner and a centering clamp assembly, wherein the spanner is in linkage with the test clamp body; the centering clamp assembly includes: the left clamp arm and the right clamp arm can synchronously move, a positioning groove which is aligned with the center of the jaw of the test clamp body is formed between the left clamp arm and the right clamp arm in a matched mode, the left clamp arm and the right clamp arm are connected with the shell in a sliding mode, the left clamp arm and the right clamp arm can be folded or unfolded in parallel, the left clamp arm and the right clamp arm are connected with a braking piece, and the braking piece is connected with the shell in a sliding mode; one end of the spanner is connected with the brake piece, so that the brake piece can be driven to move and link the left clamp arm and the right clamp arm to open, and an elastic piece for folding and resetting the left clamp arm and the right clamp arm is arranged between the brake piece and the shell. The current clamp for the measured current carrying wire centering can realize the centering of the measured current carrying wire; the structure is simple, and the maintenance are convenient.
Description
Technical Field
The invention relates to the technical field of measuring equipment, in particular to a current clamp for a measured current carrying wire pair.
Background
In the prior art, the current clamp is used as a portable instrument which can measure the current without disconnecting a circuit, and is widely applied because of convenient use.
When the traditional current clamp is used, in order to reduce errors, the tested current carrying wire is located at the center of the jaw of the test clamp body as much as possible, but the traditional current clamp lacks an effective centering means, and the centering of the tested current carrying wire is difficult to realize only by the hand feeling of an operator.
Disclosure of Invention
The invention aims to solve the technical problem of providing a pair of current pliers for a current carrying wire to be tested, which can realize the centering of the current carrying wire to be tested; the structure is simple, and the maintenance are convenient.
In order to solve the technical problem, the present invention provides a current clamp for a pair of current carrying wires to be tested, comprising: the shell is provided with a test clamp body, a spanner and a centering clamp assembly, wherein the spanner is linked with the test clamp body, and the centering clamp assembly is positioned at a jaw at the inner side of the test clamp body;
the centering clamp assembly includes: the left clamp arm and the right clamp arm can synchronously move, a positioning groove which is aligned with the center of the jaw of the test clamp body is formed between the left clamp arm and the right clamp arm in a matched mode, the left clamp arm and the right clamp arm are connected with the shell in a sliding mode, the left clamp arm and the right clamp arm can be folded or unfolded in parallel, the left clamp arm and the right clamp arm are connected with a braking piece, and the braking piece is connected with the shell in a sliding mode;
one end of the spanner is connected with the brake piece, so that the brake piece can be driven to move and link the left clamp arm and the right clamp arm to open, and an elastic piece for folding and resetting the left clamp arm and the right clamp arm is arranged between the brake piece and the shell; wherein:
the pressing spanner buckle links the test clamp body to open, and the spanner buckle synchronously links the brake piece to enable the brake piece to move close to the test clamp body, so that the left clamp arm and the right clamp arm are opened; the current carrying wire to be tested passes through the notch opened by the test clamp body and enters the positioning groove between the left clamp arm and the right clamp arm; releasing the spanner, closing the test clamp body, pressing the brake piece by the elastic piece to move away from the test clamp body, folding the left clamp arm and the right clamp arm, and clamping the tested current-carrying wire at the center position of the clamp jaw of the test clamp body; guide blocks are respectively arranged on the left clamp arm and the right clamp arm, and guide grooves matched with the guide blocks are arranged on the shell; the pulling buckle linkage brake piece is close to the test clamp body, the guide blocks of the left clamp arm and the right clamp arm carry out limit movement along the guide grooves, and the left clamp arm and the right clamp arm can be folded or unfolded in parallel; the left forceps arm is hinged with a left connecting rod, the right forceps arm is hinged with a right connecting rod, the left connecting rod and the right connecting rod are hinged with a braking piece, the braking piece comprises an end head and a center rod, the end head is respectively hinged with the left connecting rod and the right connecting rod, the center rod is tightly connected with the end head, a guide hole which is matched with the center rod and can be in sliding connection is formed in the shell, and the center rod can move along the guide hole to be close to or far away from the testing forceps body.
The brake piece moves close to the test clamp body, and drives the left clamp arm and the right clamp arm to open through the left connecting rod and the right connecting rod; the brake piece moves away from the test clamp body, and the brake piece drives the left clamp arm and the right clamp arm to fold through the left connecting rod and the right connecting rod.
The wrench is provided with an arc-shaped surface for sliding the brake piece, the wrench moves towards the inside of the shell, and the arc-shaped surface links the brake piece to move towards the direction of the test clamp body.
One end of the elastic piece is abutted against the shell, and the other end of the elastic piece is abutted against the braking piece.
Wherein, the structure of centering pincers subassembly is set to symmetry.
Wherein the elastic piece is a spring.
The current clamp for the measured current carrying wire pair has the following beneficial effects: current clamp for measured current carrying wire pair, comprising: the shell is provided with a test clamp body, a spanner and a centering clamp assembly, wherein the spanner is linked with the test clamp body, and the centering clamp assembly is positioned at a jaw at the inner side of the test clamp body; the centering clamp assembly includes: the left clamp arm and the right clamp arm can synchronously move, a positioning groove which is aligned with the center of the jaw of the test clamp body is formed between the left clamp arm and the right clamp arm in a matched mode, the left clamp arm and the right clamp arm are connected with the shell in a sliding mode, the left clamp arm and the right clamp arm can be folded or unfolded in parallel, the left clamp arm and the right clamp arm are connected with a braking piece, and the braking piece is connected with the shell in a sliding mode; one end of the spanner is connected with the brake piece, so that the brake piece can be driven to move and link the left clamp arm and the right clamp arm to open, and an elastic piece for folding and resetting the left clamp arm and the right clamp arm is arranged between the brake piece and the shell; wherein: the pressing spanner buckle links the test clamp body to open, and the spanner buckle synchronously links the brake piece to enable the brake piece to move close to the test clamp body, so that the left clamp arm and the right clamp arm are opened; the current carrying wire to be tested passes through the notch opened by the test clamp body and enters the positioning groove between the left clamp arm and the right clamp arm; the pulling buckle is loosened, the test clamp body is closed, the elastic piece abuts against the braking piece to move away from the test clamp body, the left clamp arm and the right clamp arm are folded, the tested current-carrying wire is clamped at the center of the jaw of the test clamp body, and the centering of the tested current-carrying wire can be achieved; the structure is simple, and the maintenance are convenient.
Drawings
In order to more clearly illustrate the embodiments of the invention or the technical solutions in the prior art, the drawings that are required in the embodiments or the description of the prior art will be briefly described, it being obvious that the drawings in the following description are only some embodiments of the invention, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
Fig. 1 is a schematic structural diagram of a current clamp used in a current carrying wire pair to be tested according to an embodiment of the present invention.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
Fig. 1 shows a first embodiment of a pair of current clamps for a current carrying wire under test according to the present invention.
The current clamp for the measured current carrying wire pair in the embodiment comprises: the device comprises a shell 1, a test clamp body 11, a spanner 12 and a centering clamp assembly 2, wherein the test clamp body 11, the spanner 12 and the centering clamp assembly 2 are arranged on the shell 1, the spanner 12 is in linkage with the test clamp body 11, and the centering clamp assembly 2 is positioned at a jaw at the inner side of the test clamp body;
the centering jaw assembly 2 comprises: the left clamp arm 21 and the right clamp arm 22 which can synchronously move are matched and formed with a positioning groove 2a aligned with the center of the jaw of the test clamp body, the left clamp arm 21 and the right clamp arm 22 are in sliding connection with the shell 1, the left clamp arm 21 and the right clamp arm 22 can be folded or unfolded in parallel, the left clamp arm 21 and the right clamp arm 22 are connected with a brake piece 23, and the brake piece 23 is in sliding connection with the shell 1;
one end of the spanner 12 is connected with a brake piece 23, so that the brake piece 23 can be driven to move and be linked with the left clamp arm 21 and the right clamp arm 22 to open, and an elastic piece 24 for folding and resetting the left clamp arm 21 and the right clamp arm 22 is arranged between the brake piece 23 and the shell 1; wherein:
pressing the spanner button 12 to link the test clamp body 11 to open, and synchronously linking the spanner button 12 with the brake piece 23 to enable the brake piece to move close to the test clamp body 11 to enable the left clamp arm 21 and the right clamp arm 22 to open; the current carrying wire to be tested passes through the notch opened by the test clamp body 11 and enters the positioning groove 2a between the left clamp arm 21 and the right clamp arm 22; the spanner 12 is loosened, the test clamp body 11 is closed, the elastic piece 24 pushes the braking piece 23 to move away from the test clamp body 11, the left clamp arm 21 and the right clamp arm 22 are folded, and the tested current carrying wire is clamped at the center of the jaws of the test clamp body 11.
In specific implementation, the left forceps arm 21 and the right forceps arm 22 are respectively provided with a guide block 2b, and the shell 1 is provided with a guide groove 1a matched with the guide blocks 2 b; the trigger 12 is linked with the brake piece 23 to enable the brake piece to be close to the test clamp body 11, the guide blocks 2b of the left clamp arm 21 and the right clamp arm 22 are limited to move along the guide groove 1a, and the left clamp arm 21 and the right clamp arm 22 can be folded or unfolded in parallel.
Further, the centering caliper assembly 2 is symmetrically structured, the left caliper arm 21 is hinged with a left connecting rod 25, the right caliper arm 22 is hinged with a right connecting rod 26, and the left connecting rod 25 and the right connecting rod 26 are hinged with the brake piece 23.
Further, the brake member 23 includes a head 231 and a central rod 232, the head 231 is hinged to the left link 25 and the right link 26, the central rod 232 is tightly connected to the head 231, a guide hole 1b adapted to the central rod 232 and capable of sliding connection is provided in the housing 1, and the central rod 232 can move along the guide hole 1b toward or away from the testing clamp 11.
When in use, the brake piece 23 moves to approach the test clamp 11, and the brake piece 23 drives the left clamp arm 21 and the right clamp arm 22 to open through the left connecting rod 25 and the right connecting rod 26; the brake piece 23 moves away from the test clamp 11, and the brake piece 23 drives the left clamp arm 21 and the right clamp arm 22 to be folded through the left connecting rod 25 and the right connecting rod 26.
Preferably, the trigger 12 is provided with an arc-shaped surface 121 for sliding the brake member 23, the trigger 12 moves towards the inside of the casing 1, and the arc-shaped surface 121 moves towards the direction of the test clamp 11 in a linkage manner with the brake member 23.
Further, the elastic member 24 is a spring, one end of the elastic member 24 abuts against the housing, and the other end of the elastic member 24 abuts against the braking member 23. The function of the elastic member 24 is: the stopper 23 is kept in a trend away from the test caliper body 11 in the longitudinal direction of the housing 1.
When the current clamp for the tested current carrying wire centering is implemented in a specific way, the pulling buckle 12 is pressed to link the test clamp body 11 to open, the pulling buckle 12 is synchronously linked with the brake piece 23 to enable the brake piece to move close to the test clamp body 11, so that the left clamp arm 21 and the right clamp arm 22 are opened; the current carrying wire to be tested passes through the notch opened by the test clamp body 11 and enters the positioning groove 2a between the left clamp arm 21 and the right clamp arm 22; the spanner 12 is loosened, the test clamp body 11 is closed, the elastic piece 24 pushes the braking piece 23 to move away from the test clamp body 11, the left clamp arm 21 and the right clamp arm 22 are folded, and the tested current carrying wire is clamped at the center of the jaws of the test clamp body 11.
The current clamp for the measured current carrying wire pair has the following beneficial effects: current clamp for measured current carrying wire pair, comprising: the shell is provided with a test clamp body, a spanner and a centering clamp assembly, wherein the spanner is linked with the test clamp body, and the centering clamp assembly is positioned at a jaw at the inner side of the test clamp body; the centering clamp assembly includes: the left clamp arm and the right clamp arm can synchronously move, a positioning groove which is aligned with the center of the jaw of the test clamp body is formed between the left clamp arm and the right clamp arm in a matched mode, the left clamp arm and the right clamp arm are connected with the shell in a sliding mode, the left clamp arm and the right clamp arm can be folded or unfolded in parallel, the left clamp arm and the right clamp arm are connected with a braking piece, and the braking piece is connected with the shell in a sliding mode; one end of the spanner is connected with the brake piece, so that the brake piece can be driven to move and link the left clamp arm and the right clamp arm to open, and an elastic piece for folding and resetting the left clamp arm and the right clamp arm is arranged between the brake piece and the shell; wherein: the pressing spanner buckle links the test clamp body to open, and the spanner buckle synchronously links the brake piece to enable the brake piece to move close to the test clamp body, so that the left clamp arm and the right clamp arm are opened; the current carrying wire to be tested passes through the notch opened by the test clamp body and enters the positioning groove between the left clamp arm and the right clamp arm; the pulling buckle is loosened, the test clamp body is closed, the elastic piece abuts against the braking piece to move away from the test clamp body, the left clamp arm and the right clamp arm are folded, the tested current-carrying wire is clamped at the center of the jaw of the test clamp body, and the centering of the tested current-carrying wire can be achieved; the structure is simple, and the maintenance are convenient.
Claims (6)
1. A current clamp for a pair of current carrying conductors to be tested, comprising: the device comprises a shell, a test clamp body, a spanner and a centering clamp assembly, wherein the test clamp body, the spanner and the centering clamp assembly are arranged on the shell, the spanner is in linkage with the test clamp body, and the centering clamp assembly is positioned at a jaw on the inner side of the test clamp body;
the centering clamp assembly includes: the left clamp arm and the right clamp arm which can synchronously move are matched and formed with a positioning groove aligned with the center of a jaw of the test clamp body, the left clamp arm and the right clamp arm are in sliding connection with the shell, the left clamp arm and the right clamp arm can be folded or unfolded in parallel, the left clamp arm and the right clamp arm are connected with a braking piece, and the braking piece is in sliding connection with the shell;
one end of the pulling buckle is connected with the braking piece, so that the braking piece can be driven to move and link the left clamp arm and the right clamp arm to open, and an elastic piece for folding and resetting the left clamp arm and the right clamp arm is arranged between the braking piece and the shell; wherein:
pressing the pulling buckle to link the test clamp body to open, and synchronously linking the braking piece to enable the braking piece to move close to the test clamp body to enable the left clamp arm and the right clamp arm to open; the current carrying wire to be tested passes through the notch opened by the test clamp body and enters the positioning groove between the left clamp arm and the right clamp arm; the pulling buckle is loosened, the test clamp body is closed, the elastic piece abuts against the braking piece to move away from the test clamp body, the left clamp arm and the right clamp arm are folded, and a tested current carrying wire is clamped at the center position of the clamp jaw of the test clamp body;
guide blocks are respectively arranged on the left clamp arm and the right clamp arm, and guide grooves matched with the guide blocks are arranged on the shell; the pulling buckle links the braking piece to enable the braking piece to be close to the test clamp body, the guide blocks of the left clamp arm and the right clamp arm are limited to move along the guide grooves, and the left clamp arm and the right clamp arm can be folded or unfolded in parallel;
the left clamp arm is hinged with a left connecting rod, the right clamp arm is hinged with a right connecting rod, the left connecting rod, the right connecting rod and a braking piece are hinged, the braking piece comprises a terminal and a center rod, the terminal is respectively hinged with the left connecting rod and the right connecting rod, the center rod is connected with the terminal in a solid phase, a guide hole which is matched with the center rod and can be in sliding connection is formed in the shell, and the center rod can move along the guide hole to be close to or far away from the test clamp body.
2. The pair of current clamps for current carrying wire under test according to claim 1, wherein the brake member moves close to the test clamp body, and the brake member drives the left clamp arm and the right clamp arm to open through the left connecting rod and the right connecting rod; the brake piece moves away from the test clamp body, and the brake piece drives the left clamp arm and the right clamp arm to fold through the left connecting rod and the right connecting rod.
3. The pair of current clamps for current carrying wire under test according to claim 1, wherein the trigger is provided with an arc surface for sliding the brake member, the trigger moves toward the inside of the housing, and the arc surface links the brake member to move toward the direction of the test clamp body.
4. A current clamp for aligning a current carrying wire under test as claimed in claim 1 wherein one end of said resilient member abuts said housing and the other end of said resilient member abuts said stopper.
5. A current clamp for centering a current carrying wire under test as claimed in claim 1 wherein said centering clamp assembly is symmetrically configured.
6. A current clamp for a pair of current carrying conductors to be tested according to claim 1, wherein the resilient member is a spring.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111239613.7A CN113985103B (en) | 2021-10-25 | 2021-10-25 | Current clamp for measured current carrying wire alignment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111239613.7A CN113985103B (en) | 2021-10-25 | 2021-10-25 | Current clamp for measured current carrying wire alignment |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN113985103A CN113985103A (en) | 2022-01-28 |
| CN113985103B true CN113985103B (en) | 2023-12-08 |
Family
ID=79740874
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202111239613.7A Active CN113985103B (en) | 2021-10-25 | 2021-10-25 | Current clamp for measured current carrying wire alignment |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN113985103B (en) |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
| CN205960495U (en) * | 2016-08-31 | 2017-02-15 | 国网河南西峡县供电公司 | Insulated clamp for high -tension fuse |
| CN208125819U (en) * | 2018-03-20 | 2018-11-20 | 国网天津市电力公司电力科学研究院 | Handcart type breaker circuit resistance tester electricity consumption stream loop-around test pincers |
| CN209417161U (en) * | 2018-12-19 | 2019-09-20 | 国网浙江省电力有限公司岱山县供电公司 | Portable 10kV distribution transforming gear charges capacity checking device |
| CN209640404U (en) * | 2019-03-07 | 2019-11-15 | 广东电网有限责任公司 | A kind of hand-held electric current split-core type meter of protection against electric shock |
| CN110632450A (en) * | 2019-08-16 | 2019-12-31 | 国网浙江省电力有限公司湖州供电公司 | Intelligent low-voltage distribution network patrol instrument device |
| CN111487442A (en) * | 2020-04-27 | 2020-08-04 | 浙江稳山电气科技有限公司 | Harmonic detection device for three-phase asymmetric system |
| CN211785675U (en) * | 2020-02-19 | 2020-10-27 | 上海今电实业有限公司 | Opening and closing mechanism of clamp-on ammeter probe |
-
2021
- 2021-10-25 CN CN202111239613.7A patent/CN113985103B/en active Active
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
| CN205960495U (en) * | 2016-08-31 | 2017-02-15 | 国网河南西峡县供电公司 | Insulated clamp for high -tension fuse |
| CN208125819U (en) * | 2018-03-20 | 2018-11-20 | 国网天津市电力公司电力科学研究院 | Handcart type breaker circuit resistance tester electricity consumption stream loop-around test pincers |
| CN209417161U (en) * | 2018-12-19 | 2019-09-20 | 国网浙江省电力有限公司岱山县供电公司 | Portable 10kV distribution transforming gear charges capacity checking device |
| CN209640404U (en) * | 2019-03-07 | 2019-11-15 | 广东电网有限责任公司 | A kind of hand-held electric current split-core type meter of protection against electric shock |
| CN110632450A (en) * | 2019-08-16 | 2019-12-31 | 国网浙江省电力有限公司湖州供电公司 | Intelligent low-voltage distribution network patrol instrument device |
| CN211785675U (en) * | 2020-02-19 | 2020-10-27 | 上海今电实业有限公司 | Opening and closing mechanism of clamp-on ammeter probe |
| CN111487442A (en) * | 2020-04-27 | 2020-08-04 | 浙江稳山电气科技有限公司 | Harmonic detection device for three-phase asymmetric system |
Also Published As
| Publication number | Publication date |
|---|---|
| CN113985103A (en) | 2022-01-28 |
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