CN111123171B - Telescopic mutual inductive current polarity testing device - Google Patents
Telescopic mutual inductive current polarity testing device Download PDFInfo
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- CN111123171B CN111123171B CN201911322618.9A CN201911322618A CN111123171B CN 111123171 B CN111123171 B CN 111123171B CN 201911322618 A CN201911322618 A CN 201911322618A CN 111123171 B CN111123171 B CN 111123171B
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R35/00—Testing or calibrating of apparatus covered by the other groups of this subclass
- G01R35/02—Testing or calibrating of apparatus covered by the other groups of this subclass of auxiliary devices, e.g. of instrument transformers according to prescribed transformation ratio, phase angle, or wattage rating
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Abstract
The invention relates to the technical field of current mutual inductance polarity test, in particular to a telescopic mutual inductance current polarity test device, which comprises: overlap joint arm and battery case, the overlap joint arm is formed by telescopic link and tongs fixed connection, wear to be equipped with the wire in the telescopic link, the both ends of wire respectively with the tongs with battery case electric connection, the tongs includes: the wire fixing device comprises a first connecting portion, a second connecting portion and a fixing head, wherein the first connecting portion is rotatably connected with the second connecting portion, the second connecting portion is rotatably connected with the fixing head, the bottom of the fixing head is electrically connected with a wire, and the first connecting portion, the second connecting portion and the fixing head form a circular ring structure. The problem of staff climb waste time and energy on the mutual-inductor, have and fall the risk, carry out the wire overlap joint of high latitude, safety can not be ensured is solved.
Description
Technical Field
The invention relates to the technical field of current mutual inductance polarity test, in particular to a telescopic mutual inductance current polarity test device.
Background
The electric wire netting configuration is new, when rebuilding and expanding interval is accepted, need carry out polarity test to current transformer secondary circuit, correct in order to ensure the wiring, the mode commonly used at present is by staff climbing to the mutual-inductor, with the wire respectively overlap joint to mutual-inductor primary winding P1, P2 side, then be connected to the dry battery group with the wire on, carry out the flash break cocurrent, rethread needle type universal meter confirms secondary current direction in interval terminal box department, the staff climbs to the mutual-inductor and wastes time and energy, there is the risk of falling simultaneously, still need carry out the wire overlap joint of high latitude, safety can not be ensured.
Disclosure of Invention
In order to solve the defects of the prior art, the invention aims to provide the telescopic mutual inductance current polarity testing device, which changes the traditional working mode that workers need to climb a mutual inductor, avoids high-altitude wire lapping and ensures the safety of the workers.
In order to achieve the above object, the technical solution of the present invention is: a telescopic mutual inductance current polarity test device comprises: overlap joint arm and battery case, the overlap joint arm is formed by telescopic link and tongs fixed connection, wear to be equipped with the wire in the telescopic link, the both ends of wire respectively with the tongs with battery case electric connection, the tongs includes: the wire fixing device comprises a first connecting portion, a second connecting portion and a fixing head, wherein the first connecting portion is rotatably connected with the second connecting portion, the second connecting portion is rotatably connected with the fixing head, the bottom of the fixing head is electrically connected with a wire, and the first connecting portion, the second connecting portion and the fixing head form a circular ring structure.
Further, all rotate through the pivot between first connecting portion, second connecting portion and the fixed head and be connected, the cover is equipped with the torsional spring in the pivot.
Furthermore, the top of the joint of the first connecting part is a right angle, the bottom of the joint of the first connecting part is a round angle, the top of the joint of the second connecting part is a round angle, and the bottom of the joint of the second connecting part is a right angle.
Further, the telescopic link includes: the multi-section rod body is fixedly connected with the head and the tail of the multi-section rod body, a group of wire winding devices are fixedly mounted in each section of the rod body, and the hand grip, the wire winding devices and the battery box are connected through wires.
Further, the wire winding device comprises: the coil spring, the winding drum and the electrode are sequentially sleeved on the rotating rod, two ends of the rotating rod are respectively connected with the inner wall of the rod body in a rotating mode, the coil spring is fixedly connected with the inner wall of the rod body through a fixing point on the outer side of the coil spring, the coil spring is fixedly connected with the rotating rod through a fixing point on the inner side of the coil spring, the electrode is fixedly connected with the wall of the winding drum, the wire is wound on the winding drum, and the tail end of the wire is electrically connected with the electrode in the rod body of the previous section.
Further, the battery case includes: box body, connecting conductor and stationary pole connecting conductor, it holds the chamber to have seted up a plurality of dry batteries in the box body, is provided with a plurality of connecting conductor on the lateral wall of box body, connecting conductor with the dry battery holds the setting of chamber one-to-one, the last tie point that is provided with of connecting conductor, the tip of box body is provided with stationary pole connecting conductor, stationary pole connecting conductor holds the same straight line setting in chamber with a plurality of dry batteries, be provided with the tie point on the stationary pole connecting conductor, be provided with on the box body and be used for realizing the through-flow switch of flash break, the switch is close to stationary pole connecting conductor sets up.
Has the advantages that:
according to the telescopic mutual inductance current polarity testing device, the operating rod is set to be the telescopic rod type, and the wire winding device is arranged in the telescopic rod, so that the wire operating rod is integrated, the carrying is convenient, and the safety is enhanced. The polarity of the mutual inductor high-position equipment is convenient to measure, and the operation is more convenient during detection.
The battery pack in the battery box is provided with the plurality of groups of connecting conductors, the fixed pole connecting conductor is used for fixedly connecting one end electrode, and the plurality of groups of connecting conductors are arranged for changing the number of the dry batteries, so that the current is adjusted.
According to the invention, the handle is arranged to be in a ring structure connected with the torsion spring, so that the connection and the disconnection of the conductors of the mutual inductor are facilitated, and the operation is more convenient.
The invention has simple structure, convenient operation and obvious effect and is very suitable for popularization and application.
Drawings
FIG. 1 is a schematic perspective view of a current polarity testing device of a telescopic mutual inductor according to the present invention;
FIG. 2 is a schematic perspective view of a lapping arm of a current polarity testing device of a telescopic mutual inductor according to the present invention;
FIG. 3 is a schematic cross-sectional view of a telescopic rod of the current polarity testing device for a telescopic mutual inductor according to the present invention;
FIG. 4 is a schematic view of each state of a gripper of the current polarity testing device of the retractable transformer of the present invention;
FIG. 5 is a schematic view of a wire winding device of a current polarity testing device of a retractable transformer according to the present invention;
FIG. 6 is an exploded view of a wire winding device of a current polarity testing device of a telescopic mutual inductor according to the present invention;
FIG. 7 is a schematic diagram of a battery box of a current polarity testing apparatus of a telescopic transformer according to the present invention;
the labels in the figure are: 1-lap joint arm, 2-battery box, 11-telescopic rod, 12-gripper, 21-box, 22-connecting conductor, 23-fixed pole connecting conductor, 24-switch, 111-rod body, 112-lead winding device, 121-first connecting part, 122-second connecting part, 123-fixing head, 211-dry battery accommodating cavity, 1121-coil spring, 1122-coil drum, 1123-electrode, 1121-1-coil spring outer fixing point, 1121-2-coil spring inner fixing point and 1121-3-rotating rod.
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 that can be derived by one of ordinary skill in the art from the embodiments disclosed herein are intended to be within the scope of the present invention.
As shown in the figure, the invention discloses a telescopic mutual inductance current polarity testing device, which is characterized by comprising: overlap joint arm 1 and battery case 2, overlap joint arm 1 is formed by telescopic link 11 and tongs 12 fixed connection, wear to be equipped with the wire in the telescopic link 11, the both ends of wire respectively with tongs 12 with 2 electric connection of battery case, tongs 12 includes: the connecting structure comprises a first connecting part 121, a second connecting part 122 and a fixing head 123, wherein the first connecting part 121 is rotatably connected with the second connecting part 122, the second connecting part 122 is rotatably connected with the fixing head 123, the bottom of the fixing head 123 is electrically connected with a wire, and the first connecting part 121, the second connecting part 122 and the fixing head 123 form a circular ring structure. In the scheme, in the actual working process, firstly, the telescopic rod 11 is pulled, because the wire winding device 112 is installed in the telescopic rod 11, along with the extension of the telescopic rod 11, the coil spring 1121 is stretched, the rotating rod 1121-3 is driven to rotate by the fixed point 1121-2 at the inner side of the coil spring, the rotating rod 1121-3 drives the winding drum 1122 to rotate, the wire 13 wound on the winding drum 1122 is loosened and extended, and because the wire 13 is electrically connected with the fixed head 123 of the gripper 12, the whole gripper 12 is conductive. Because the hand grip 12 is formed by rotationally connecting the first connecting part 121, the second connecting part 122 and the fixing head 123 through torsion springs, a circular ring structure is formed together, wherein the top of the joint of the first connecting part 121 is set to be a right angle, and the bottom is set to be a round angle. When the whole gripper 12 is pressed down, the cylindrical conductor of the mutual inductor butts against the first connecting portion 121 and applies force to the first connecting portion 121, the torsion spring drives the first connecting portion 121 to rotate, and the bottom of the joint of the first connecting portion 121 is set to be a round angle, so that the first connecting portion 121 can rotate in the vertical direction. When the cylindrical conductor of the mutual inductor enters the circular ring of the gripper 12, the first connecting part 121 loses the force application of the mutual-inductive cylindrical conductor, the torsion spring drives the first connecting part 121 to rotate to the initial position, and the first connecting part 121 is supported by the second connecting part 122 when rotating to the initial position because the top of the first connecting part 121 is arranged to be right-angled. At the moment, the cylindrical conductor of the mutual inductor is fixed by the gripper 12 and is contacted and conducted. And the other end of the lead 13 is electrically connected with the connecting point of the connecting conductor 22 and the fixed pole connecting conductor 23 on the battery box 2 through the telescopic rod 11 to form a loop, a switch 24 on the battery box 2 is opened and closed to carry out flash-off through-flow, and the direction of the secondary current is confirmed at the interval terminal box through a needle type universal meter. Wherein the battery box 2 is provided with a fixed pole connecting conductor 23 and a connecting conductor 22, and the connecting conductor 22 is provided with a plurality of groups which are respectively electrically connected with dry batteries in the dry battery cavity, so that the connecting points can be changed to change the number of the connected dry batteries, thereby adjusting the current.
After accomplishing the mutual-inductor current polarity test, when needing to remove mutual-inductor cylindric conductor and tongs 12 relation of being connected, exert oneself pulling telescopic link 11 slightly, overcome the effort of turning round the spring, turn round the spring and drive second connecting portion 122 rotatory, because second connecting portion 122 joint department top sets up to the fillet shape, the bottom sets up to the right angle form, and second connecting portion 122 can rely on the fillet rotation, expandes tongs 12. After the cylindrical conductor of the mutual inductor is separated from the hand grip 12, the force application of the conductor is lost, the torsion spring is restored to the original state, the joint of the second connecting part 122 is abutted against the fixing head 123 at the right angle, and the whole hand grip 12 is restored to the circular ring shape.
In this embodiment, the first connecting portion 121, the second connecting portion 122 and the fixing head 123 are rotatably connected through a rotating shaft, and a torsion spring is sleeved on the rotating shaft. In this scheme, set up the effect of right angle and be in order to support dead joint department, play spacing effect for turning round the deformation of spring, and the setting of fillet is for turning round the spring for convenience and drive first connecting portion 121 and the rotation of second connecting portion 122.
In this embodiment, the top of the joint of the first connecting portion 121 is a right angle, the bottom is a round angle, the top of the joint of the second connecting portion 122 is a round angle, and the bottom is a right angle.
In this embodiment, the telescopic rod 11 includes: the multi-section rod body 111 is fixedly connected with the head and the tail of the multi-section rod body 111, a group of lead winding devices 112 are fixedly installed in each section of rod body 111, and the hand grip 12, the lead winding devices 112 and the battery box 2 are connected through leads. In the scheme, the wire winding device 112 is fixedly installed inside the telescopic rod 11, so that the wire 13 can be wound and extended in the telescopic rod 11 along with the extension and contraction of the telescopic rod 11.
In this embodiment, the wire winding device 112 includes: the coil spring 1121, the winding drum 1122 and the electrode 1123 are sequentially sleeved on a rotating rod 1121-3, two ends of the rotating rod 1121-3 are respectively connected with the inner wall of the rod body 111 in a rotating mode, the coil spring 1121 is fixedly connected with the inner wall of the rod body 111 through a coil spring outer fixing point 1121-1, the coil spring 1121 is fixedly connected with the rotating rod 1121-3 through a coil spring inner fixing point 1121-2, the electrode 1123 is fixedly connected with the wall of the winding drum 1122, the lead wire is wound on the winding drum 1122, and the tail end of the lead wire is electrically connected with the electrode 1123 in the last rod body 111. In this embodiment, the fixed-pole connecting conductor 23 is used to fixedly connect the one-end electrode 1123, and the plurality of sets of connecting conductors 22 are provided to change the number of connected dry cells, thereby adjusting the current.
In this embodiment, the battery pack 2 includes: box body 21, connecting conductor 22 and stationary pole connecting conductor 23, it holds chamber 211 to have seted up a plurality of dry batteries in the box body 21, is provided with a plurality of connecting conductor 22 on the lateral wall of box body 21, connecting conductor 22 with the dry battery holds the setting of chamber 211 one-to-one, be provided with the tie point on the connecting conductor 22, the tip of box body 21 is provided with stationary pole connecting conductor 23, stationary pole connecting conductor 23 holds the same straight line setting of chamber 211 with a plurality of dry batteries, be provided with the tie point on the stationary pole connecting conductor 23, be provided with on the box body 21 and be used for realizing the through-flow switch 24 of flash break, switch 24 is close to stationary pole connecting conductor 23 sets up.
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, but rather as the intention of all modifications, equivalents, improvements, and equivalents falling within the spirit and scope of the invention.
Claims (4)
1. The utility model provides a telescopic mutual inductance current polarity testing arrangement which characterized in that includes: overlap joint arm (1) and battery case (2), overlap joint arm (1) is formed by telescopic link (11) and tongs (12) fixed connection, wear to be equipped with the wire in telescopic link (11), the both ends of wire respectively with tongs (12) with battery case (2) electric connection, tongs (12) include: the wire fixing structure comprises a first connecting part (121), a second connecting part (122) and a fixing head (123), wherein the first connecting part (121) is rotatably connected with the second connecting part (122), the second connecting part (122) is rotatably connected with the fixing head (123), the bottom of the fixing head (123) is electrically connected with the wire, and the first connecting part (121), the second connecting part (122) and the fixing head (123) form a circular ring structure;
The first connecting part (121), the second connecting part (122) and the fixing head (123) are rotatably connected through a rotating shaft, and a torsion spring is sleeved on the rotating shaft;
the top of the joint of the first connecting part (121) is a right angle, the bottom of the joint is a round angle, the top of the joint of the second connecting part (122) is a round angle, and the bottom of the joint is a right angle.
2. The telescopic mutual inductance current polarity testing device according to claim 1, wherein the telescopic rod (11) comprises: the multi-section rod body (111), the multi-section the body of rod (111) end to end fixed connection, every section equal fixed mounting has a set of wire coiling mechanism (112) in the body of rod (111), tongs (12) wire coiling mechanism (112) connect through the wire between battery case (2).
3. The telescopic mutual inductance current polarity testing device according to claim 2, wherein the wire winding device (112) comprises: the coil spring (1121), the winding drum (1122) and the electrode (1123) are sequentially sleeved on the rotating rod (1121-3), two ends of the rotating rod (1121-3) are respectively connected with the inner wall of the rod body (111) in a rotating mode, the coil spring (1121) is fixedly connected with the inner wall of the rod body (111) through a coil spring outer side fixing point (1121-1), the coil spring (1121) is fixedly connected with the rotating rod (1121-3) through a coil spring inner side fixing point (1121-2), the electrode (1123) is fixedly connected with the wall of the winding drum (1122), the lead is wound on the winding drum (1122), and the tail end of the lead is electrically connected with the electrode (1123) in the last rod body (111).
4. A telescopic mutual inductance current polarity testing device according to claim 1, wherein said battery case (2) comprises: box body (21), connecting conductor (22) and stationary pole connecting conductor (23), it holds chamber (211) to have seted up a plurality of dry batteries in box body (21), is provided with a plurality of connecting conductor (22) on the lateral wall of box body (21), connecting conductor (22) with the dry battery holds chamber (211) one-to-one setting, be provided with the tie point on connecting conductor (22), the tip of box body (21) is provided with stationary pole connecting conductor (23), stationary pole connecting conductor (23) holds chamber (211) with a plurality of dry batteries and sets up with the straight line, be provided with the tie point on stationary pole connecting conductor (23), be provided with on box body (21) and be used for realizing the through-flow switch (24) of flash break, switch (24) are close to stationary pole connecting conductor (23) set up.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911322618.9A CN111123171B (en) | 2019-12-20 | 2019-12-20 | Telescopic mutual inductive current polarity testing device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911322618.9A CN111123171B (en) | 2019-12-20 | 2019-12-20 | Telescopic mutual inductive current polarity testing device |
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| CN111123171A CN111123171A (en) | 2020-05-08 |
| CN111123171B true CN111123171B (en) | 2022-07-29 |
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| CN201911322618.9A Active CN111123171B (en) | 2019-12-20 | 2019-12-20 | Telescopic mutual inductive current polarity testing device |
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Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111610351B (en) * | 2020-06-04 | 2022-09-16 | 贵州电网有限责任公司 | Lap joint type high-altitude junction pole |
| CN112230357B (en) * | 2020-10-31 | 2022-10-21 | 贵州电网有限责任公司 | Portable emergent fine dish of jumping |
| CN112230358B (en) * | 2020-10-31 | 2022-10-21 | 贵州电网有限责任公司 | Emergent fine storage device that jumps of modularization |
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