Electromagnetic induction current testing device for opening and closing of grounding switch

Abstract

The utility model discloses a grounding switch opening and closing electromagnetic induction current test device, which comprises a sensitive galvanometer, the bottom end of the sensitive galvanometer is fixedly connected with a bottom plate, and the outer side of one binding post on the sensitive galvanometer is provided with a first jointing clamp. Through the arrangement of a first jointing clamp, a first wire, a coil, a second wire, a second jointing clamp, a third wire, a third jointing clamp, a U-shaped magnet and a limiting assembly, when the device is used, a sliding block drives the coil to move to continuously cut a magnetic induction line of the U-shaped magnet, if the closing condition of the grounding switch is normal, the reading of a sensitive galvanometer changes, and the grounding switch is switched on. And if the closing condition of the grounding switch is abnormal, the reading of the sensitive galvanometer does not change, so that the test detection of the grounding switch is completed, whether the grounding switch can operate normally or not can be conveniently and quickly detected through the arrangement of the limiting assembly and the connecting component thereof, and the working efficiency is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of grounding switch, concretely is grounding switch opening and closing electromagnetic induction current test device. BACKGROUND

[0002] The grounding switch is a kind of extremely important switch equipment in power system, it is mainly used to reliably connect electrical equipment or line with ground under certain conditions, when power system is normally operated, grounding switch is usually in the off state, to ensure the normal progress of power transmission, however, when carrying out equipment maintenance, maintenance or line power-off operation, grounding switch is closed, its effect is remarkable, it can provide safety guarantee for maintenance personnel, by grounding equipment or line, electrical equipment caused by mis-sending or other unexpected situations can be effectively prevented, and the danger of electric shock of maintenance personnel is avoided, greatly reduce the operation risk.

[0003] The existing grounding switch is widely applied, but when installing grounding switch, whether grounding switch is normally opened and closed needs to be tested, the existing device usually cannot judge whether grounding switch is normally connected, electromagnetic induction current is the current generated based on electromagnetic induction phenomenon, when the magnetic flux passing through closed circuit changes, induced electromotive force will be generated in circuit, if circuit is closed, there will be induced current, therefore, grounding switch opening and closing electromagnetic induction current test device is provided for the above problems. UTILITY MODEL CONTENTS

[0004] The utility model aims at providing grounding switch opening and closing electromagnetic induction current test device to solve the problem that the existing device cannot judge whether grounding switch is normally connected in the above background art.

[0005] To achieve the above object, the utility model provides the following technical scheme:

[0006] Grounding switch opening and closing electromagnetic induction current test device, including sensitive ammeter, the sensitive ammeter bottom end is fixedly connected with bottom plate, the sensitive ammeter is installed with first wire clamp on one of the outside of binding post, first wire is fixedly connected with the first wire clamp one side, the first wire is fixedly connected with coil at the end away from the first wire clamp, the coil outside is fixedly connected with second wire, the second wire is fixedly connected with second wire clamp at the end away from the coil, the sensitive ammeter is equipped with third wire on the outside of another binding post, both ends of third wire are fixedly connected with third wire clamp, one of the third wire clamp is installed on the outside of another binding post of sensitive ammeter, the coil inside is equipped with U type magnet, the U type magnet outside is equipped with limit component.

[0007] Preferably, the limiting assembly comprises a limiting shell fixedly connected to the outer side of the U-shaped magnet, a top cover is installed at the top end of the limiting shell, symmetrical line grooves are formed in the top cover from top to bottom, symmetrical sliding grooves are formed in the front and rear sides of the limiting shell and communicate with the inner side of the limiting shell, and sliding blocks are slidably connected in the sliding grooves.

[0008] Preferably, the first wire and the second wire are arranged in the line grooves in the top cover, and the side of the sliding block close to the coil is fixedly connected to the outer side of the coil.

[0009] Preferably, a horizontal slide rod is installed at the right side of the sliding block, a slide base is slidably connected to the outer side of the slide rod, a horizontal connecting rod is fixedly connected to the end of the slide rod away from the sliding block, a first rotating shaft is fixedly connected to the top end of the connecting rod, an inner ring of a first bearing is fixedly connected to the outer side of the first rotating shaft, a horizontal connecting rod is fixedly connected to the outer side of the outer ring of the first bearing, an outer ring of a second bearing is fixedly connected to the end of the connecting rod away from the first bearing, a second rotating shaft is fixedly connected to the inner side of the inner ring of the second bearing, a disc is fixedly connected to the bottom end of the second rotating shaft, and an output shaft of a rotating motor is fixedly connected to the middle of the bottom end of the disc.

[0010] Preferably, the slide base is fixedly connected to the outer side of the limiting shell, the second rotating shaft is arranged at the top end edge of the disc, and the bottom end of the rotating motor is fixedly connected to the top end of the bottom plate.

[0011] Compared with the prior art, the utility model has the advantages that:

[0012] (1) In the utility model, the first wire, the coil, the second wire, the second wire, the second wire, the third wire, the third wire, the U-shaped magnet and the limiting assembly are arranged, when the device is used, the sliding block drives the coil to move and continuously cuts the magnetic induction line of the U-shaped magnet, if the closing condition of the grounding switch is normal, the indication of the sensitive ammeter changes, if the closing condition of the grounding switch is abnormal, the indication of the sensitive ammeter does not change, thus the test and detection of the grounding switch are completed, the limiting assembly and the connecting member can conveniently and quickly detect whether the grounding switch can normally operate, and the working efficiency is improved.

[0013] (2), the utility model discloses, through the setting of slide rod, slide base, connecting rod, first pivot, first bearing, connecting rod, second bearing, second pivot, disc and rotating motor, when using the device, start rotating motor, and rotating motor output shaft drives disc rotation, at this time, the second pivot of second bearing inner ring inside rotates, and the first pivot of first bearing inner ring inside rotates, and connecting rod follows disc movement, and the slide rod of connecting rod one side slides in the inside of slide base and does reciprocating motion, and the slide rod drives slider and coil movement, and this design makes the movement of coil more convenient, and does not need to manually pull coil, reduces worker work intensity. BRIEF DESCRIPTION OF DRAWINGS

[0014] Fig. 1 It is whole structure schematic diagram of the utility model;

[0015] Fig. 2 It is limit casing sectional structure schematic diagram of the utility model;

[0016] Fig. 3 It is first pivot installation structure schematic diagram of the utility model.

[0017] In the drawing: 1, sensitive ammeter;2, bottom plate;3, first wiring clamp;4, first wire;5, coil;6, second wire;7, second wiring clamp;8, third wire;9, third wiring clamp;10, U-shaped magnet;11, limiting assembly;111, limit casing;112, top cover;113, wire slot;114, sliding groove;115, slider;12, slide rod;13, slide base;14, connecting rod;15, first pivot;16, first bearing;17, connecting rod;18, second bearing;19, second pivot;20, disc;21, rotating motor. DETAILED DESCRIPTION

[0018] The technical scheme in the embodiments of the utility model will be described clearly and completely below in conjunction with the drawings in the embodiments of the utility model, and apparently, the described embodiments are only part of the embodiments of the utility model, not all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by the person skilled in the art without creative labor belong to the protection scope of the utility model.

[0019] In the description of the utility model, it is understood that the orientation words such as " front, back, top, bottom, left, right " " horizontal, vertical, perpendicular, horizontal " and " top, bottom " and the orientation or positional relationship indicated by the orientation words are usually based on the orientation or positional relationship shown in the drawings, only for the convenience of describing the utility model and simplifying the description, in the absence of the opposite statement, these orientation words do not indicate and imply that the indicated device or element must have a particular orientation or be constructed and operated in a particular orientation, therefore it can not be understood as the limitation of the protection scope of the utility model;The orientation words " inside, outside " refer to the inside and outside relative to the contour of each component.

[0020] In addition, it should be noted that the use of " first " " second " and other words to limit parts is only for the convenience of distinguishing the corresponding parts, and the above words have no special meaning unless otherwise stated, therefore it can not be understood as the limitation of the protection scope of the utility model.

[0021] Please refer to Figs. 1-3 The utility model provides a technical scheme:

[0022] The ground switch opening and closing electromagnetic induction current test device, including sensitive galvanometer 1, sensitive galvanometer 1 bottom fixedly connected with bottom plate 2, the outside of one of the binding posts of sensitive galvanometer 1 is equipped with first binding clip 3, first binding clip 3 one side is fixedly connected with first wire 4, and the end away from first binding clip 3 of first wire 4 is fixedly connected with coil 5, and the outside of coil 5 is fixedly connected with second wire 6, and the end away from coil 5 of second wire 6 is fixedly connected with second binding clip 7, and the outside of another binding post of sensitive galvanometer 1 is equipped with third wire 8, and both ends of third wire 8 are fixedly connected with third binding clip 9, and one of third binding clip 9 is installed on the outside of another binding post of sensitive galvanometer 1, and the inside of coil 5 is equipped with U-shaped magnet 10, and the outside of U-shaped magnet 10 is equipped with limiting assembly 11, and limiting assembly 11 includes the limiting shell 111 fixedly connected on the outside of U-shaped magnet 10, and the top of limiting shell 111 is equipped with top cover 112, and the top of top cover 112 is symmetrically provided with wire slot 113 from top to bottom through top cover 112, and the front and rear sides of limiting shell 111 are symmetrically provided with sliding slot 114 through the inside of limiting shell 111, and the inside of sliding slot 114 is slidably connected with sliding block 115, and first wire 4 and second wire 6 are arranged in the inside of wire slot 113 on top cover 112 respectively, and the side close to coil 5 of sliding block 115 is fixedly connected with the outside of coil 5, when using the device, sliding block 115 drives coil 5 to move and continuously cuts the magnetic induction line of U-shaped magnet 10, if the closing condition of ground switch is normal, the indication of sensitive galvanometer 1 changes, if the closing condition of ground switch is not normal, the indication of sensitive galvanometer 1 does not change, thus completing the test detection of ground switch, and the setting of limiting assembly 11 and its connecting member can conveniently and quickly detect whether ground switch can normally operate, thereby improving work efficiency.

[0023] The horizontal sliding rod 12 is arranged on the right side of the sliding block 115. The outer side of the horizontal sliding rod 12 is slidably connected with a sliding seat 13. The end of the horizontal sliding rod 12, which is away from the sliding block 115, is fixedly connected with a horizontal connecting rod 14. The top end of the connecting rod 14 is fixedly connected with a vertical first rotating shaft 15. The outer side of the first rotating shaft 15 is fixedly connected with the inner ring of a first bearing 16. The outer ring of the first bearing 16 is fixedly connected with a horizontal connecting rod 17. The end of the connecting rod 17, which is away from the first bearing 16, is fixedly connected with the outer ring of a second bearing 18. The inner side of the inner ring of the second bearing 18 is fixedly connected with a vertical second rotating shaft 19. The bottom end of the second rotating shaft 19 is fixedly connected with a disc 20. The bottom end of the disc 20 is fixedly connected with the output shaft of a rotating motor 21. The sliding seat 13 is fixedly connected to the outer side of the limiting shell 111. The second rotating shaft 19 is arranged at the top end edge of the disc 20. The bottom end of the rotating motor 21 is fixedly connected with the top end of the bottom plate 2. When the device is used, the rotating motor 21 is started. The output shaft of the rotating motor 21 drives the disc 20 to rotate. At this time, the second rotating shaft 19 in the inner side of the inner ring of the second bearing 18 rotates. The first rotating shaft 15 in the inner side of the inner ring of the first bearing 16 rotates. The connecting rod 17 moves with the disc 20. The horizontal sliding rod 12 on one side of the connecting rod 14 slides in the inner side of the sliding seat 13 and reciprocates. The horizontal sliding rod 12 drives the sliding block 115 and the coil 5 to move. This design makes the movement of the coil 5 more convenient. It is not necessary to manually pull the coil 5. The working strength of workers is reduced.

[0024] Work flow: before use, the device is powered on, need to test the opening and closing of the ground switch is normal, first, the first wire 4 on the first wire clamp 3 is connected to the sensitive ammeter 1 on the outside of one of the terminals, the third wire 8 on one of the third wire clamps 9 is connected to the sensitive ammeter 1 on the outside of the other terminal, then the other third wire clamp 9 is connected to one end of the ground switch, the second wire 6 on the second wire clamp 7 is connected to the other end of the ground switch, that is, the installation of the device is completed, the next step is to start the rotating motor 21 at the top of the bottom plate 2, the rotating motor 21 output shaft drives the disc 20 to rotate, at this time the second rotating shaft 19 inside the inner ring of the second bearing 18 rotates, the first rotating shaft 15 inside the inner ring of the first bearing 16 rotates, the connecting rod 17 moves with the disc 20, the sliding rod 12 on one side of the connecting rod 14 slides in the sliding seat 13 and reciprocates, the sliding block 115 slides in the sliding groove 114 on the limiting shell 111 and drives the coil 5 to move, at this time the first wire 4 and the second wire 6 move in the wire slot 113 on the top cover 112, the coil 5 moves and continuously cuts the magnetic induction line of the U-shaped magnet 10, if the closing of the ground switch is normal, the current is generated in the closed circuit, the indication of the sensitive ammeter 1 changes, if the closing of the ground switch is not normal, no current is generated in the closed circuit, the indication of the sensitive ammeter 1 does not change, thus the test and detection of the ground switch are completed, the limiting assembly 11 and the connecting members thereof can conveniently and quickly detect whether the ground switch can normally operate, and the working efficiency is improved.

[0025] The contents not described in detail in the specification belong to the prior art known to those skilled in the art. The standard parts used in the utility model can be purchased from the market, and the special-shaped parts can be ordered according to the description and the drawings, and the specific connection mode of each part adopts the conventional means such as bolt, rivet and welding in the prior art, the mechanical parts and equipment adopt the conventional type in the prior art, and the circuit connection adopts the conventional connection mode in the prior art, which will not be described in detail here.

[0026] Although the embodiments of the utility model have been shown and described, it can be understood by those skilled in the art that various changes, modifications, replacements and variations can be made to these embodiments without departing from the principles and spirits of the utility model, the scope of the utility model is defined by the appended claims and their equivalents.

Claims

1. A device for testing the electromagnetic induction of a ground switch, comprising a sensitive ammeter (1), characterized in that: The bottom end of the sensitive ammeter (1) is fixedly connected with a bottom plate (2), one of the external sides of the posts of the sensitive ammeter (1) is provided with a first wire clamp (3), one side of the first wire clamp (3) is fixedly connected with a first wire (4), the end of the first wire (4) away from the first wire clamp (3) is fixedly connected with a coil (5), the external side of the coil (5) is fixedly connected with a second wire (6), the end of the second wire (6) away from the coil (5) is fixedly connected with a second wire clamp (7), the external side of the other post of the sensitive ammeter (1) is provided with a third wire (8), both ends of the third wire (8) are fixedly connected with third wire clamps (9), one of the third wire clamps (9) is arranged on the external side of the other post of the sensitive ammeter (1), the internal side of the coil (5) is provided with a U-shaped magnet (10), the external side of the U-shaped magnet (10) is provided with a limiting assembly (11).

2. The ground switch opening and closing electromagnetic induction current test device according to claim 1, characterized in that: The limiting assembly (11) comprises a limiting shell (111) fixedly connected to the external side of the U-shaped magnet (10), a top cover (112) arranged on the top end of the limiting shell (111), a wire slot (113) penetrating through the top cover (112) from top to bottom symmetrically arranged on the top end of the top cover (112), and a sliding slot (114) penetrating through the internal side of the limiting shell (111) symmetrically arranged on the front and back sides of the limiting shell (111), wherein the internal side of the sliding slot (114) is slidably connected with a sliding block (115).

3. The ground switch opening and closing electromagnetic induction current test device according to claim 2, characterized in that: The first wire (4) and the second wire (6) are arranged in the wire slots (113) on the top cover (112), and one side of the sliding block (115) close to the coil (5) is fixedly connected with the external side of the coil (5).

4. The ground switch opening and closing electromagnetic induction current test device according to claim 2, characterized in that: A horizontally arranged sliding rod (12) is arranged on the right side of the sliding block (115), a sliding seat (13) is slidably connected to the external side of the sliding rod (12), a horizontally arranged connecting rod (14) is fixedly connected to the end of the sliding rod (12) away from the sliding block (115), a vertically arranged first rotating shaft (15) is fixedly connected to the top end of the connecting rod (14), the internal side of the first rotating shaft (15) is fixedly connected with the inner ring of a first bearing (16), a horizontally arranged connecting rod (17) is fixedly connected to the external side of the outer ring of the first bearing (16), the external side of the outer ring of the first bearing (16) is fixedly connected with the outer ring of a second bearing (18), a vertically arranged second rotating shaft (19) is fixedly connected to the internal side of the inner ring of the second bearing (18), and the bottom end of the second rotating shaft (19) is fixedly connected with a disc (20), and the output shaft of a rotating motor (21) is fixedly connected to the middle of the bottom end of the disc (20).

5. The ground switch opening and closing electromagnetic induction current test device according to claim 4, characterized in that: The sliding seat (13) is fixedly connected to the external side of the limiting shell (111), the second rotating shaft (19) is arranged at the top end edge of the disc (20), and the bottom end of the rotating motor (21) is fixedly connected with the top end of the bottom plate (2).

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