CN211980534U - Multi-point safety grounding device for general high-voltage switch equipment - Google Patents
Multi-point safety grounding device for general high-voltage switch equipment Download PDFInfo
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- CN211980534U CN211980534U CN202021084121.6U CN202021084121U CN211980534U CN 211980534 U CN211980534 U CN 211980534U CN 202021084121 U CN202021084121 U CN 202021084121U CN 211980534 U CN211980534 U CN 211980534U
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Abstract
The utility model discloses a general multipoint safe grounding device of high-voltage switch equipment, which comprises a grounding guide rod, a rack and a mounting plate; the grounding guide rod, the guide rod and the rack are welded to form a movable support, an insulating base and a positioning pin are fixed on the mounting plate, the guide rod is inserted into a guide hole of the insulating base, the positioning pin is inserted into a long hole of the rack, and the rack is meshed with the meshing gear; the movable support is fixed with a multipoint grounding electrode, and the insulating base is fixed with a multipoint grounding terminal corresponding to the position of the multipoint grounding electrode. When the high-voltage circuit breaker is in the opening position, the multipoint grounding electrode is in complete contact with the multipoint grounding terminal, and the fixing bolt is screwed into the grounding guide rod to fix the movable support, so that safe grounding is realized. The structure is small and exquisite, the installation is convenient, and a large amount of space in the equipment can be saved; the grounding is more sufficient due to the multipoint grounding; after being grounded, the grounding is fixed by bolts, so that the grounding is safer and more reliable; the mechanical structure has simple design, few parts, accurate reciprocating motion and low failure rate.
Description
Technical Field
The utility model relates to a high tension switchgear annex especially relates to a general type high tension switchgear multiple spot safety earthing device.
Background
In a high-voltage power supply system, personal safety and equipment safety cannot be carelessly leaked. Particularly, in the process of equipment overhaul, maintenance and maintenance, not only strict operation regulations but also an absolutely safe grounding device is required. In an electromagnetic environment with high voltage and large current, when a high-voltage circuit breaker rotates from a switching-on position to a switching-off position, due to capacitive reactance effect in a loop, a very large induced electromotive force can be generated by a high voltage change rate and a high current change rate. Particularly, a large amount of high-voltage static electricity is attached to the surfaces of a wiring terminal on the outgoing line side of the high-voltage circuit breaker and a current-carrying bus bar, and instantaneous high voltage is formed due to nowhere release.
However, in the actual working process, a plurality of high-voltage switches are grounded in a single-point mode, and the reliability is poor; especially in hot tide environment, the elimination effect of high voltage static electricity is worse. If the grounding of the high-voltage switch equipment is insufficient, the high-voltage static electricity is not thoroughly discharged, and when an operator overhauls and maintains the high-voltage circuit breaker, electric shock accidents are easily caused.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing an adaptation is arranged in the damp and hot environment that temperature is high, humidity is big general type high tension switchgear multiple spot safety earthing device.
The utility model aims at realizing through the following technical scheme:
the utility model discloses a general type high tension switchgear multiple spot safety earthing device, including ground connection guide arm, guide bar, rack, mounting panel;
the grounding guide rod, the guide rod and the rack are welded to form a movable support, an insulating base and a positioning pin are fixed on the mounting plate, the guide rod is inserted into a guide hole of the insulating base, the positioning pin is inserted into a long hole of the rack, and the rack is meshed with the meshing gear;
the movable support is fixed with a multipoint grounding electrode, and the insulating base is fixed with a multipoint grounding terminal corresponding to the position of the multipoint grounding electrode.
According to the technical scheme provided by the utility model, the general high-voltage switch equipment multipoint safety grounding device provided by the embodiment of the utility model has the advantages of small structure, convenient installation and capability of saving a large amount of space in equipment; the grounding is more sufficient due to the multipoint grounding; after being grounded, the grounding is fixed by bolts, so that the grounding is safer and more reliable; the mechanical structure has simple design, few parts, accurate reciprocating motion and low failure rate.
Drawings
Fig. 1 is a schematic structural view of a general multipoint safety grounding device for high-voltage switchgear according to an embodiment of the present invention.
Detailed Description
Embodiments of the present invention will be described in further detail below. Details not described in the embodiments of the present invention belong to the prior art known to those skilled in the art.
The utility model discloses a general type high tension switchgear multiple spot safety earthing device, the concrete implementation mode of its preferred is:
comprises a grounding guide rod, a rack and a mounting plate;
the grounding guide rod, the guide rod and the rack are welded to form a movable support, an insulating base and a positioning pin are fixed on the mounting plate, the guide rod is inserted into a guide hole of the insulating base, the positioning pin is inserted into a long hole of the rack, and the rack is meshed with the meshing gear;
the movable support is fixed with a multipoint grounding electrode, and the insulating base is fixed with a multipoint grounding terminal corresponding to the position of the multipoint grounding electrode.
When the high-voltage circuit breaker is in the opening position, the multipoint grounding electrode is completely contacted with the multipoint grounding terminal.
The grounding guide rod is provided with a fixing bolt, and when the multipoint grounding electrode is completely contacted with the multipoint grounding terminal, the fixing bolt is screwed into the grounding guide rod to fix the movable support.
The specific embodiment is as follows:
as shown in fig. 1, the method comprises: the grounding device comprises parts such as a grounding guide rod (1), a multipoint grounding electrode (2), a guide rod (3), a rack (4), a positioning pin (5), a multipoint grounding terminal (6), an insulating base (7), a mounting plate (8), a meshing gear (9), a fixing bolt (10) and the like.
The rack (4), the grounding guide rod (1) and the guide rod (3) are an integral movable support, are connected through a positioning pin (5) and a screw rod, and are fixed with the mounting plate (8) through bolts. The multipoint grounding electrode (2) and the grounding guide rod (1) are fixed together with the movable bracket through a screw rod. The insulating base (7) is fixed on the mounting plate (8) through bolt connection, and the multipoint grounding terminal (6) and the insulating base (7) are fixed together through threaded connection.
When the high-voltage switch equipment works normally, the high-voltage circuit breaker is in a closing position, at the moment, the multipoint grounding terminal (6) and the multipoint grounding electrode (2) of the safety grounding mechanism are in a separated state, and the distance between the multipoint grounding terminal and the multipoint grounding electrode is within a safety distance range.
When the high-voltage switch equipment breaks down and needs maintenance, and the high-voltage circuit breaker rotates from a switching-on position to a switching-off position, the meshing gear (9) rotates in a reverse direction, and the rack (4) meshed with the meshing gear drives the movable support to move horizontally to the right; when the meshing gear (9) rotates to 180 degrees, the multipoint earthing pole (2) is completely contacted with the multipoint earthing terminal (6). At the moment, the fixing bolt (10) can be screwed into the grounding guide rod (1) fully by using a tool, so that the movable bracket can not displace any more, and the grounding effect of the switch device can not be influenced by artificial touch or external vibration. Because the device adopts a multipoint grounding mode, the probability that all the contacts of the multipoint grounding electrode (2) and the multipoint grounding terminal (6) can not be in good contact at the same time is extremely low, and therefore safe grounding is realized. In addition, the multipoint grounding mode can shorten the discharge time of high-voltage static electricity, thereby greatly improving the working efficiency of operators.
After the overhaul and maintenance work is finished, an operator can perform switching-on operation of the high-voltage circuit breaker after the fixing bolt (10) is screwed out of the grounding guide rod (1) by using a tool again. When the high-voltage circuit breaker rotates from the 'opening' position to the 'closing' position, the meshing gear (9) rotates 180 degrees clockwise, the rack (4) drives the movable support to horizontally move leftwards, the multipoint grounding terminal (6) and the multipoint grounding electrode (2) are completely separated, and the normal creepage distance of the high-voltage switch equipment after being electrified is ensured.
In the movement process of the grounding device, the guide rod (3) and the positioning pin (5) play a role in guiding, and the accuracy of butt joint is ensured.
The insulating base (7) is made of an insulating electrical board, so that the safety of equipment in normal work is guaranteed.
The utility model has the characteristics of down:
1. the structure is small and exquisite, and the installation of being convenient for can save a large amount of equipment inner spaces.
2. The grounding is more sufficient due to the multipoint grounding; after being grounded, the grounding is more safe and reliable by fixing the grounding through bolts.
3. The mechanical structure has simple design, few parts, accurate reciprocating motion and low failure rate.
The above description is only for the preferred embodiment of the present invention, but the protection scope of the present invention is not limited thereto, and any changes or substitutions that can be easily conceived by those skilled in the art within the technical scope of the present invention are all covered by the protection scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.
Claims (3)
1. A general multipoint safety grounding device of high-voltage switch equipment is characterized by comprising a grounding guide rod (1), a guide rod (3), a rack (4) and a mounting plate (8);
the grounding guide rod (1), the guide rod (3) and the rack (4) are welded to form a movable support, an insulating base (7) and a positioning pin (5) are fixed on the mounting plate (8), the guide rod (3) is inserted into a guide hole of the insulating base (7), the positioning pin (5) is inserted into a long hole of the rack (4), and the rack (4) is meshed with the meshing gear (9);
the movable support is fixed with a multipoint grounding electrode (2), and the insulating base (7) is fixed with a multipoint grounding terminal (6) corresponding to the position of the multipoint grounding electrode (2).
2. A high voltage switchgear multipoint safety earthing device of the generic type according to claim 1, characterized in that, when the high voltage circuit breaker is in the open position, the multipoint earthing pole (2) is in full contact with the multipoint earthing terminal (6).
3. A high voltage switchgear multipoint safety earthing device in general type according to claim 2, characterized in that, the earthing rod (1) is provided with a fixing bolt (10), when the multipoint earthing pole (2) is fully contacted with the multipoint earthing terminal (6), the fixing bolt (10) is screwed into the earthing rod (1) to fix the movable bracket.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021084121.6U CN211980534U (en) | 2020-06-12 | 2020-06-12 | Multi-point safety grounding device for general high-voltage switch equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021084121.6U CN211980534U (en) | 2020-06-12 | 2020-06-12 | Multi-point safety grounding device for general high-voltage switch equipment |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211980534U true CN211980534U (en) | 2020-11-20 |
Family
ID=73368634
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202021084121.6U Active CN211980534U (en) | 2020-06-12 | 2020-06-12 | Multi-point safety grounding device for general high-voltage switch equipment |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211980534U (en) |
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2020
- 2020-06-12 CN CN202021084121.6U patent/CN211980534U/en active Active
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