CN111413579A - Cable identification device - Google Patents
Cable identification device Download PDFInfo
- Publication number
- CN111413579A CN111413579A CN201911195765.4A CN201911195765A CN111413579A CN 111413579 A CN111413579 A CN 111413579A CN 201911195765 A CN201911195765 A CN 201911195765A CN 111413579 A CN111413579 A CN 111413579A
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- China
- Prior art keywords
- iron core
- mounting block
- iron
- electrode mounting
- rotating shaft
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
- G01R31/08—Locating faults in cables, transmission lines, or networks
- G01R31/081—Locating faults in cables, transmission lines, or networks according to type of conductors
- G01R31/086—Locating faults in cables, transmission lines, or networks according to type of conductors in power transmission or distribution networks, i.e. with interconnected conductors
-
- 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
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Measurement Of Length, Angles, Or The Like Using Electric Or Magnetic Means (AREA)
Abstract
The invention provides a cable identification device, which comprises a sensing mechanism, a transmitter and a receiver, wherein the transmitter and the receiver are electrically connected with the sensing mechanism, the sensing mechanism comprises a rotating shaft and at least two circular iron cores, the central axes of the circular iron cores are in the same straight line, the inner diameter of a circular ring formed by the iron cores is sequentially reduced, the iron cores are formed by butting semi-circular first iron cores and semi-circular second iron cores, the rotating shaft is provided with an opening and closing support which is in one-to-one correspondence with the iron cores, the opening and closing support comprises a fixed arm fixedly connected with the rotating shaft and a movable arm rotatably connected with the rotating shaft, the fixed arm is fixedly connected with the first iron core, the movable arm is fixedly connected with the second iron core, the first iron core and the second iron core are respectively wound with a coil, the second iron core is butted with the first iron core along with the approach of the fixed arm and the movable arm to form a closed magnetic circuit, the method is used for solving the technical problem of improving the detection accuracy.
Description
Technical Field
The invention relates to a cable identification device.
Background
From the formula B = K × I/R, a relationship between the magnetic induction intensity and the current can be obtained, where K is a constant, that is, the farther the distance between the iron core and the cable to be measured is, the smaller the magnetic induction intensity at the iron core is, and the smaller the induced current generated on the iron core is. At present, a large number of cables with different purposes are placed in a cable groove on the same path, and when a cable with a fault is identified, due to the difference of the diameters of the cables, the gap between the cable to be tested and a sensing mechanism is too large, so that induced current generated on an iron core is small, and the test result is inaccurate.
The invention discloses an invention patent with the name of 'a cable recognizing device', an authorization notice number of CN 205353271U and an authorization notice date of 2016.06.29 in the prior art, which comprises a transmitter, a sensing mechanism and a receiver, wherein a signal transmitting end of the transmitter is electrically connected with one end of a cable to be tested through a lead, and the other end of the cable to be tested is grounded through the lead; sensing mechanism is including being cyclic annular and inside hollow dustcoat, just be equipped with in the dustcoat and be annular iron core, it has the coil to wind on the iron core, the both ends of coil are followed the annular border of dustcoat stretch out and with two inputs of receiver pass through the wire one-to-one and are connected, the cable that awaits measuring is followed pass in the annular border of dustcoat sensing mechanism. The diameter of the inner ring of the iron core of the sensing mechanism is fixed, so when the sensing mechanism is used for measuring a cable to be measured with a smaller diameter, the distance between the iron core and the cable to be measured is too large, and the measuring result is inaccurate.
Disclosure of Invention
The invention provides a cable identification device, which aims to solve the technical problem of improving the detection accuracy.
The technical scheme of the invention is realized as follows: a cable identification device comprises a sensing mechanism, a transmitter and a receiver which are electrically connected with the sensing mechanism, wherein the sensing mechanism comprises a rotating shaft and at least two circular ring-shaped iron cores with central axes in the same straight line, the inner diameter of a circular ring formed by the iron cores is reduced in sequence, the iron core is formed by butting a first iron core and a second iron core in a semicircular ring shape, the rotating shaft is provided with an opening and closing support which corresponds to the iron cores one by one, the opening and closing support comprises a fixed arm fixedly connected with the rotating shaft and a movable arm rotatably connected with the rotating shaft, the fixed arm is fixedly connected with the first iron core, the movable arm is fixedly connected with the second iron core, the first iron core and the second iron core are respectively and independently wound with a coil, the second iron core is butted with the first iron core along with the approach of the fixed arm and the movable arm to form a closed magnetic circuit, and one of the iron cores and the coil closest to the diameter of the cable to be measured are electrically connected with the receiver.
Furthermore, the sensing mechanism is provided with a sliding rail parallel to the rotating shaft, the sliding rail is provided with a sliding block in a sliding manner, the sliding block is provided with a U-shaped groove, the fixed arm is provided with a first electrode mounting block, the movable arm is provided with a second electrode mounting block, the first electrode mounting block is provided with a first electrode, the second electrode mounting block is provided with a second electrode, two opposite vertical inner side surfaces of the U-shaped groove are respectively provided with a first contact piece and a second contact piece corresponding to the first electrode and the second electrode, and the first contact piece and the second contact piece are electrically connected with the receiver; when the first iron core and the second iron core are closed to form the annular iron core, the first electrode mounting block and the second electrode mounting block are mutually overlapped so that the U-shaped groove slides on the first electrode mounting block and the second electrode mounting block; when the first iron core and the second iron core are far away from each other, the first electrode mounting block and the second electrode mounting block are staggered with each other to prevent the U-shaped groove from sliding on the U-shaped groove.
Furthermore, the rotating shaft is provided with a handle, the handle comprises a first handle fixedly arranged with the rotating shaft and a second handle rotationally connected with the rotating shaft, and the second handle is provided with a shifting lever used for shifting the movable arm to rotate when the second handle rotates.
Furthermore, a fixing block is arranged between the rotating shaft and the sliding rail to fixedly connect the rotating shaft and the sliding rail.
Furthermore, the iron core is made of electrician pure iron.
Furthermore, the deflector rod is cylindrical.
By adopting the technical scheme, the invention has the beneficial effects that: the cable identification device is provided with the plurality of annular iron cores with different inner ring diameters, so that the cable identification device is suitable for cables to be tested with different diameters, the iron core with the diameter closest to that of the cable to be tested can be selected for testing, and the accuracy of a test result is improved.
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 description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are only 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 schematic structural diagram of a sensing mechanism according to the present invention;
FIG. 2 is a front view of the sensing mechanism of the present invention;
fig. 3 is an enlarged view of fig. 1 at I.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within 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", etc., indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, but do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular 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 should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; 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 meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.
An embodiment 1 of a cable identification device is shown in fig. 1-3, and comprises a sensing mechanism, a transmitter and a receiver electrically connected with the sensing mechanism, wherein the sensing mechanism comprises a rotating shaft 1 and at least two circular ring-shaped iron cores 2 with central axes in the same straight line, the inner diameters of the circular rings formed by the iron cores 2 are sequentially reduced, the iron cores are formed by butting semicircular first iron cores 3 and semicircular second iron cores 4, the rotating shaft is provided with opening and closing supports 5 which are in one-to-one correspondence with the iron cores, each opening and closing support comprises a fixed arm 6 fixedly connected with the rotating shaft and a movable arm 7 rotatably connected with the rotating shaft, the fixed arm is fixedly connected with the first iron core, the movable arm is fixedly connected with the second iron core, the first iron core and the second iron core are respectively wound with coils, the second iron core is butted with the first iron core along with the approach of the fixed arm to form a closed magnetic, And the coil closest to the diameter of the cable to be measured is electrically connected with the receiver.
An embodiment 2 of a cable identification device is shown in fig. 1-3, and comprises a sensing mechanism, a transmitter and a receiver electrically connected with the sensing mechanism, wherein the sensing mechanism comprises a rotating shaft 1 and at least two circular ring-shaped iron cores 2 with central axes in the same straight line, the inner diameters of the circular rings formed by the iron cores 2 are sequentially reduced, the iron cores are formed by butting semicircular first iron cores 3 and semicircular second iron cores 4, the rotating shaft is provided with opening and closing supports 5 which are in one-to-one correspondence with the iron cores, each opening and closing support comprises a fixed arm 6 fixedly connected with the rotating shaft and a movable arm 7 rotatably connected with the rotating shaft, the fixed arm is fixedly connected with the first iron core, the movable arm is fixedly connected with the second iron core, the first iron core and the second iron core are respectively wound with coils, the second iron core is butted with the first iron core along with the approach of the fixed arm to form a closed magnetic, The coil closest to the diameter of the cable to be detected is electrically connected with the receiver, the sensing mechanism is provided with a sliding rail 8 parallel to the rotating shaft, the sliding rail is provided with a sliding block 9 in a sliding manner, the sliding block is provided with a U-shaped groove 10, the fixed arm is provided with a first electrode mounting block, the movable arm is provided with a second electrode mounting block, the first electrode mounting block is provided with a first electrode, the second electrode mounting block is provided with a second electrode, two opposite vertical inner side surfaces of the U-shaped groove are respectively provided with a first contact piece and a second contact piece corresponding to the first electrode and the second electrode, and the first contact piece and the second contact piece are electrically connected with the; when the first iron core and the second iron core are closed to form the annular iron core, the first electrode mounting block and the second electrode mounting block are mutually overlapped so that the U-shaped groove slides on the first electrode mounting block and the second electrode mounting block; when the first iron core and the second iron core are far away from each other, the first electrode mounting block and the second electrode mounting block are staggered with each other to prevent the U-shaped groove from sliding on the U-shaped groove.
An embodiment 3 of a cable identification device is shown in fig. 1-3, and comprises a sensing mechanism, a transmitter and a receiver electrically connected with the sensing mechanism, wherein the sensing mechanism comprises a rotating shaft 1 and at least two circular ring-shaped iron cores 2 with central axes in the same straight line, the inner diameters of the circular rings formed by the iron cores 2 are sequentially reduced, the iron cores are formed by butting semicircular first iron cores 3 and semicircular second iron cores 4, the rotating shaft is provided with opening and closing supports 5 which are in one-to-one correspondence with the iron cores, each opening and closing support comprises a fixed arm 6 fixedly connected with the rotating shaft and a movable arm 7 rotatably connected with the rotating shaft, the fixed arm is fixedly connected with the first iron core, the movable arm is fixedly connected with the second iron core, the first iron core and the second iron core are respectively wound with coils, the second iron core is butted with the first iron core along with the approach of the fixed arm to form a closed magnetic, The coil closest to the diameter of the cable to be detected is electrically connected with the receiver, the sensing mechanism is provided with a sliding rail 8 parallel to the rotating shaft, the sliding rail is provided with a sliding block 9 in a sliding manner, the sliding block is provided with a U-shaped groove 10, the fixed arm is provided with a first electrode mounting block 14, the movable arm is provided with a second electrode mounting block 15, the first electrode mounting block is provided with a first electrode, the second electrode mounting block is provided with a second electrode, two opposite vertical inner side surfaces of the U-shaped groove are respectively provided with a first contact piece and a second contact piece corresponding to the first electrode and the second electrode, and the first contact piece and the second contact piece are electrically connected with the; when the first iron core and the second iron core are closed to form the annular iron core, the first electrode mounting block and the second electrode mounting block are mutually overlapped so that the U-shaped groove slides on the first electrode mounting block and the second electrode mounting block; when the first iron core and the second iron core are far away from each other, the first electrode mounting block and the second electrode mounting block are staggered to prevent the U-shaped groove from sliding on the first electrode mounting block and the second electrode mounting block, the rotating shaft is provided with a handle, the handle comprises a first handle 11 fixedly arranged with the rotating shaft and a second handle 12 rotatably connected with the rotating shaft, and the second handle is provided with a shifting lever 13 used for shifting the movable arm to rotate when the second handle rotates.
In other embodiments, a fixing block is disposed between the rotating shaft and the sliding rail to fixedly connect the rotating shaft and the sliding rail.
In other embodiments, the iron core is made of electrician pure iron, and the deflector rod is cylindrical.
When the cable sliding device is used, the first handle and the second handle are firstly held tightly, the second handle rotates relative to the first handle and drives the shifting lever to rotate, the shifting lever drives the movable arm to be far away from the fixed arm, so that the upper ends of the first iron core and the second iron core are opened, a cable can be placed between the first iron core and the second iron core and the first handle and the second handle are loosened, the circular iron core with the larger diameter at the left side in the drawing 1 is sequentially closed until the circular iron core at the right side cannot be closed due to the fact that the inner diameter of the circular iron core at the right side is smaller than the diameter of the cable, the first electrode mounting block and the second electrode mounting block which are linked by the circular iron core which cannot be closed are staggered mutually, the sliding block stops moving when sliding to the left side of the circular iron core which cannot be closed due to the fact that the inner diameter of the circular iron, The second contact piece is electrically connected with the first electrode and the second electrode of the coil on the iron core respectively.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents, improvements and the like that fall within the spirit and principle of the present invention are intended to be included therein.
Claims (6)
1. A cable identification device comprises a sensing mechanism, a transmitter and a receiver electrically connected with the sensing mechanism, it is characterized in that the sensing mechanism comprises a rotating shaft and at least two circular ring-shaped iron cores with central axes in the same straight line, the inner diameter of a circular ring formed by the iron cores is reduced in sequence, the iron core is formed by butting a first iron core and a second iron core in a semicircular ring shape, the rotating shaft is provided with an opening and closing support which corresponds to the iron cores one by one, the opening and closing support comprises a fixed arm fixedly connected with the rotating shaft and a movable arm rotatably connected with the rotating shaft, the fixed arm is fixedly connected with the first iron core, the movable arm is fixedly connected with the second iron core, the first iron core and the second iron core are respectively and independently wound with a coil, the second iron core is butted with the first iron core along with the approach of the fixed arm and the movable arm to form a closed magnetic circuit, and the coil of the iron core, which is closest to the diameter of the cable to be measured, of one of the iron cores is electrically connected with the receiver.
2. The cable identification device of claim 1, wherein the sensing mechanism is provided with a slide rail parallel to the rotation shaft, the slide rail is slidably provided with a slide block, the slide block is provided with a U-shaped groove, the fixed arm is provided with a first electrode mounting block, the movable arm is provided with a second electrode mounting block, the first electrode mounting block is provided with a first electrode, the second electrode mounting block is provided with a second electrode, two opposite vertical inner side surfaces of the U-shaped groove are respectively provided with a first contact piece and a second contact piece corresponding to the first electrode and the second electrode, and the first contact piece and the second contact piece are electrically connected with the receiver; when the first iron core and the second iron core are closed to form the annular iron core, the first electrode mounting block and the second electrode mounting block are mutually overlapped so that the U-shaped groove slides on the first electrode mounting block and the second electrode mounting block; when the first iron core and the second iron core are far away from each other, the first electrode mounting block and the second electrode mounting block are staggered with each other to prevent the U-shaped groove from sliding on the U-shaped groove.
3. The cable identification device as claimed in claim 2, wherein the shaft is provided with a handle, the handle comprises a first handle fixedly arranged with the shaft and a second handle rotatably connected with the shaft, and the second handle is provided with a lever for rotating the movable arm when the second handle rotates.
4. The cable identification device of claim 3, wherein a fixing block is disposed between the shaft and the rail to fixedly connect the shaft to the rail.
5. The cable identification device of claim 4, wherein the core is made of electrically pure iron.
6. The cable identification device of claim 5 wherein said shifter lever is cylindrical.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911195765.4A CN111413579B (en) | 2019-11-29 | 2019-11-29 | Cable identification device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911195765.4A CN111413579B (en) | 2019-11-29 | 2019-11-29 | Cable identification device |
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| Publication Number | Publication Date |
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| CN111413579A true CN111413579A (en) | 2020-07-14 |
| CN111413579B CN111413579B (en) | 2022-07-26 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201911195765.4A Active CN111413579B (en) | 2019-11-29 | 2019-11-29 | Cable identification device |
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Citations (9)
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| US4754218A (en) * | 1985-02-21 | 1988-06-28 | Soft Wire Ltd. | Current sensing apparatus |
| CN102498407A (en) * | 2009-09-14 | 2012-06-13 | 大电株式会社 | Electromagnetic field sensor, and receiver |
| CN203929862U (en) * | 2014-04-29 | 2014-11-05 | 国家电网公司 | Power cable electriferous state and power down mode recognition device |
| CN203950003U (en) * | 2014-07-11 | 2014-11-19 | 沈阳工程学院 | Cable recognition device in raceway well |
| CN204389573U (en) * | 2015-01-12 | 2015-06-10 | 国家电网公司 | The charged recognition device of a kind of cable |
| CN205353271U (en) * | 2016-02-01 | 2016-06-29 | 武汉讯康电子技术有限公司 | Cable identification device |
| CN205665293U (en) * | 2016-05-31 | 2016-10-26 | 中国神华能源股份有限公司 | Clip -on ammeter |
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2019
- 2019-11-29 CN CN201911195765.4A patent/CN111413579B/en active Active
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| US4754218A (en) * | 1985-02-21 | 1988-06-28 | Soft Wire Ltd. | Current sensing apparatus |
| CN102498407A (en) * | 2009-09-14 | 2012-06-13 | 大电株式会社 | Electromagnetic field sensor, and receiver |
| CN203929862U (en) * | 2014-04-29 | 2014-11-05 | 国家电网公司 | Power cable electriferous state and power down mode recognition device |
| CN203950003U (en) * | 2014-07-11 | 2014-11-19 | 沈阳工程学院 | Cable recognition device in raceway well |
| CN204389573U (en) * | 2015-01-12 | 2015-06-10 | 国家电网公司 | The charged recognition device of a kind of cable |
| CN205353271U (en) * | 2016-02-01 | 2016-06-29 | 武汉讯康电子技术有限公司 | Cable identification device |
| CN205665293U (en) * | 2016-05-31 | 2016-10-26 | 中国神华能源股份有限公司 | Clip -on ammeter |
| CN107879182A (en) * | 2017-11-11 | 2018-04-06 | 邹城市邹旺食用菌有限公司 | A kind of electric power actinobacillus wheel suitable for multiple diameter cable |
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| CN111413579B (en) | 2022-07-26 |
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