CN112563768A - Grounding mechanism of low-voltage distribution box and switching-on and switching-off method - Google Patents
Grounding mechanism of low-voltage distribution box and switching-on and switching-off method Download PDFInfo
- Publication number
- CN112563768A CN112563768A CN202011373339.8A CN202011373339A CN112563768A CN 112563768 A CN112563768 A CN 112563768A CN 202011373339 A CN202011373339 A CN 202011373339A CN 112563768 A CN112563768 A CN 112563768A
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- China
- Prior art keywords
- grounding
- rotating sheet
- limiting column
- action disc
- driving
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
- H01R4/00—Electrically-conductive connections between two or more conductive members in direct contact, i.e. touching one another; Means for effecting or maintaining such contact; Electrically-conductive connections having two or more spaced connecting locations for conductors and using contact members penetrating insulation
- H01R4/58—Electrically-conductive connections between two or more conductive members in direct contact, i.e. touching one another; Means for effecting or maintaining such contact; Electrically-conductive connections having two or more spaced connecting locations for conductors and using contact members penetrating insulation characterised by the form or material of the contacting members
- H01R4/64—Connections between or with conductive parts having primarily a non-electric function, e.g. frame, casing, rail
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02B—BOARDS, SUBSTATIONS OR SWITCHING ARRANGEMENTS FOR THE SUPPLY OR DISTRIBUTION OF ELECTRIC POWER
- H02B3/00—Apparatus specially adapted for the manufacture, assembly, or maintenance of boards or switchgear
Abstract
The invention discloses a grounding mechanism and a switching-on and switching-off method of a low-voltage distribution box, relates to the field of low-voltage distribution network operation protection, and solves the problems that a hanging type low-voltage grounding wire is time-consuming and labor-consuming to use, and is inconvenient to unfold, fold, pick up and wind. The grounding device comprises an operating cam (9) for driving a grounding manual action disc (2) to rotate, wherein the grounding manual action disc (2) is used for driving a spring support column (3) to move, and the spring support column (3) is used for driving a grounding main shaft action disc (4) to rotate; the driving rod (6) is provided with a driving rod limiting column (5), and the rotating sheet (8) is provided with a rotating sheet limiting column (1); the driving rod limiting column (5) is used for limiting the driving rod (6), the driving rod (6) is used for driving the push rod (7) to move, the push rod (7) is used for driving the rotating sheet (8) to rotate, and the rotating sheet limiting column (1) is used for limiting the rotating sheet (8). The invention reduces the labor cost and expands the effective working space for overhauling, operating and maintaining of the amplification personnel.
Description
Technical Field
The invention relates to the field of low-voltage distribution network operation protection, in particular to a grounding mechanism of a low-voltage distribution box and a switching-on and switching-off method.
Background
In the low-voltage power failure operation, the grounding protection of low-voltage power failure equipment is a safety protection measure which must be taken, and the application of a 0.4kV hanging type low-voltage grounding wire is a grounding method which is widely applied at present. The hanging type low-voltage grounding wire is used for grounding protection, and has the following main disadvantages:
firstly, the use of the hanging low-voltage grounding wire is time-consuming and labor-consuming, and inconvenient to unfold, collect, wind;
secondly, the grounding wire is hung in place only by manual visual observation, and the condition that the grounding wire is hung in place by secondary confirmation through mechanical and electrical indication is avoided, so that the safety risk is high;
thirdly, the hanging type low-voltage grounding wire is hung in the distribution box, so that the limited working space of the distribution box is seriously occupied, great inconvenience is brought to maintenance, operation and maintenance, and the operation process and reliability are possibly influenced.
And fourthly, under the current automatic development trend of the power distribution network, the development trend of automation, intellectualization and modularization is not met.
Disclosure of Invention
The technical problem to be solved by the invention is as follows: the invention provides a grounding mechanism of a low-voltage distribution box and a switching-on and switching-off method for solving the problems that a hanging type low-voltage grounding wire is time-consuming and labor-consuming and is inconvenient to unfold, collect, pick up and wind.
The invention is realized by the following technical scheme:
the grounding mechanism is used in low-voltage power failure operation, is arranged in the low-voltage distribution box and is used for grounding, isolating and protecting equipment and lines of the distribution box;
the grounding mechanism comprises an operating cam, a grounding manual action disc, a spring support column, a grounding main shaft action disc, a driving rod limiting column, a driving rod, a push rod, a rotating sheet limiting column and a main loop action disc;
the operating cam, the grounding manual action disc, the spring support column and the grounding main shaft action disc are sequentially connected;
the operation cam is used for driving the grounding manual action disc to rotate, the grounding manual action disc is used for driving the spring support columns to move, and the spring support columns are used for driving the grounding main shaft action disc to rotate;
the driving rod, the push rod and the rotating sheet are sequentially connected, and the rotating sheet limiting column is in transmission connection with the main loop action disc;
the driving rod is provided with a driving rod limiting column, and the rotating piece is provided with a rotating piece limiting column;
the driving rod limiting column is used for limiting the driving rod, the driving rod is used for driving the push rod to move, the push rod is used for driving the rotating sheet to rotate, and the rotating sheet limiting column is used for limiting the rotating sheet;
a main loop action disc connected with the rotating sheet limiting column is switched off in the main loop, and the grounding mechanism is switched on;
the main loop action disc connected with the rotating sheet limiting column is switched on in the main loop, and the grounding mechanism is switched off.
Furthermore, the grounding structure comprises two states of closing and opening respectively;
when the grounding mechanism is in a brake opening process, the grounding manual action disc rotates clockwise, the spring support column moves upwards, when the grounding main shaft action disc rotates to the brake opening position of the grounding main shaft action disc, the grounding brake is opened, the driving rod limiting column is unlocked, the rotating sheet rotates to the brake opening position of the rotating sheet, and the main loop is closed;
when the grounding mechanism is in a switching-on process, the rotating sheet limiting column is unlocked, the rotating sheet is released, the main circuit is switched off, the driving rod limiting column is unlocked, the spring supporting column moves downwards, and the grounding switching-on is realized.
Furthermore, the grounding mechanism is arranged in a room, the electric energy meter and the metering mutual inductor in the low-voltage distribution box are separated by a sealing plate, the thickness of the sealing plate is not less than 2mm, and the gap is not more than 20 mm.
Further, the closing plate comprises a steel plate.
The opening method of the grounding mechanism of the low-voltage distribution box comprises the following steps:
when the operating cam is rotated, the grounding manual action disc rotates clockwise, the grounding manual action disc drives the spring support column to move upwards, the spring support column drives the grounding main shaft action disc to rotate to a specified position, and the grounding brake is switched off;
meanwhile, the driving rod limiting column is unlocked to push the driving rod to move, the driving rod drives the push rod to move, the push rod drives the rotating sheet to rotate, the rotating sheet rotates to a designated position, the rotating sheet limiting column locks the rotating sheet, the main circuit is switched on, and the grounding switching-off action is completed.
The switching-on method of the grounding mechanism of the low-voltage distribution box comprises the following steps:
and unlocking the limiting column of the rotating sheet, releasing the rotating sheet, opening the main circuit, simultaneously pushing the push rod by the rotating sheet, unlocking the limiting column of the driving rod, driving the driving rod to rotate by the push rod, driving the spring support column to move downwards by the driving rod, opening the main circuit, and completing the grounding switch-on action.
The invention has the following advantages and beneficial effects:
the invention not only can more safely and reliably protect the ground, but also can remarkably improve the power failure operation efficiency, reduce the labor cost, enlarge the effective working space for personnel to overhaul, operate and maintain, conform to the development trend of automation, intellectualization and modularization of a power distribution network, and greatly facilitate the low-voltage power failure operation. Therefore, the method has very important significance for being widely applied to low-voltage power failure operation.
Drawings
The accompanying drawings, which are included to provide a further understanding of the embodiments of the invention and are incorporated in and constitute a part of this application, illustrate embodiment(s) of the invention and together with the description serve to explain the principles of the invention. In the drawings:
fig. 1 is a schematic view of the working state of the grounding mechanism module of the distribution box of the present invention when the main circuit is opened.
Fig. 2 is a schematic diagram of an energy storage state of the grounding mechanism module of the distribution box when a main loop is switched from open to closed.
Fig. 3 is a schematic diagram of the working state of the grounding mechanism module of the distribution box when the main circuit is closed.
Fig. 4 is a schematic view of the working state of the grounding mechanism module of the distribution box of the present invention during grounding energy storage.
Fig. 5 is a schematic view of the working state of the grounding mechanism module of the distribution box of the present invention during grounding and closing.
Reference numbers and corresponding part names in the drawings:
1. a rotor plate limiting post; 2. a grounded manual action plate; 3. a spring support post; 4. a grounding main shaft action disc; 5. a driving rod limiting column; 6. driving the rod; 7. a push rod; 8. a rotating sheet; 9. the cam is operated.
Detailed Description
Hereinafter, the term "comprising" or "may include" used in various embodiments of the present invention indicates the presence of the invented function, operation or element, and does not limit the addition of one or more functions, operations or elements. Furthermore, as used in various embodiments of the present invention, the terms "comprises," "comprising," "includes," "including," "has," "having" and their derivatives are intended to mean that the specified features, numbers, steps, operations, elements, components, or combinations of the foregoing, are only meant to indicate that a particular feature, number, step, operation, element, component, or combination of the foregoing, and should not be construed as first excluding the existence of, or adding to the possibility of, one or more other features, numbers, steps, operations, elements, components, or combinations of the foregoing.
In various embodiments of the invention, the expression "or" at least one of a or/and B "includes any or all combinations of the words listed simultaneously. For example, the expression "a or B" or "at least one of a or/and B" may include a, may include B, or may include both a and B.
Expressions (such as "first", "second", and the like) used in various embodiments of the present invention may modify various constituent elements in various embodiments, but may not limit the respective constituent elements. For example, the above description does not limit the order and/or importance of the elements described. The foregoing description is for the purpose of distinguishing one element from another. For example, the first user device and the second user device indicate different user devices, although both are user devices. For example, a first element could be termed a second element, and, similarly, a second element could be termed a first element, without departing from the scope of various embodiments of the present invention.
It should be noted that: if it is described that one constituent element is "connected" to another constituent element, the first constituent element may be directly connected to the second constituent element, and a third constituent element may be "connected" between the first constituent element and the second constituent element. In contrast, when one constituent element is "directly connected" to another constituent element, it is understood that there is no third constituent element between the first constituent element and the second constituent element.
The terminology used in the various embodiments of the invention is for the purpose of describing particular embodiments only and is not intended to be limiting of the various embodiments of the invention. As used herein, the singular forms are intended to include the plural forms as well, unless the context clearly indicates otherwise. Unless otherwise defined, all terms (including technical and scientific terms) used herein have the same meaning as commonly understood by one of ordinary skill in the art to which various embodiments of the present invention belong. The terms (such as those defined in commonly used dictionaries) should be interpreted as having a meaning that is consistent with their contextual meaning in the relevant art and will not be interpreted in an idealized or overly formal sense unless expressly so defined herein in various embodiments of the present invention.
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is further described in detail below with reference to examples and accompanying drawings, and the exemplary embodiments and descriptions thereof are only used for explaining the present invention and are not meant to limit the present invention.
As shown in fig. 1-5, a grounding mechanism of a low-voltage distribution box, which is used in low-voltage power failure operation, is arranged inside the low-voltage distribution box and is used for grounding, isolating and protecting equipment and lines of the distribution box;
the grounding mechanism comprises an operating cam, a grounding manual action disc 2, a spring support column 3, a grounding main shaft action disc 4, a driving rod limiting column 5, a driving rod 6, a push rod 7, a rotating sheet 8, a rotating sheet limiting column 1 and a main loop action disc;
the operating cam, the grounding manual action disc 2, the spring support column 3 and the grounding main shaft action disc 4 are sequentially connected;
the operating cam is used for driving the grounding manual action disc 2 to rotate, the grounding manual action disc 2 is used for driving the spring support columns 3 to move, and the spring support columns 3 are used for driving the grounding main shaft action disc 4 to rotate;
the driving rod 6, the push rod 7 and the rotating sheet 8 are sequentially connected, and the rotating sheet limiting column 1 is in transmission connection with the main loop action disc;
the driving rod 6 is provided with a driving rod limiting column 5, and the rotating sheet 8 is provided with a rotating sheet limiting column 1;
the driving rod limiting column 5 is used for limiting the driving rod 6, the driving rod 6 is used for driving the push rod 7 to move, the push rod 7 is used for driving the rotating sheet 8 to rotate, and the rotating sheet limiting column 1 is used for limiting the rotating sheet 8;
a main loop action disc connected with the rotating sheet limiting column 1 is switched off in a main loop, and a grounding mechanism is switched on;
a main loop action disc connected with the rotating sheet limiting column 1 is switched on in the main loop, and the grounding mechanism is switched off.
Furthermore, the grounding structure comprises two states of closing and opening respectively;
when the grounding mechanism is in a brake opening process, the grounding manual action disc 2 rotates clockwise, the spring support column 3 moves upwards, when the grounding main shaft action disc 4 rotates to a brake opening position of the grounding main shaft action disc 4, grounding brake opening is conducted, the driving rod limiting column 5 is unlocked, the rotating sheet 8 rotates to a brake opening position of the rotating sheet 8, and a main loop is switched on;
when the grounding mechanism is in a switching-on process, the rotating sheet limiting column 1 is unlocked, the rotating sheet 8 is released, the main circuit is switched off, the driving rod limiting column 5 is unlocked, the spring supporting column 3 moves downwards, and the grounding switching-on is realized.
Furthermore, the grounding mechanism is arranged in a room, the electric energy meter and the metering mutual inductor in the low-voltage distribution box are separated by a sealing plate, the thickness of the sealing plate is not less than 2mm, and the gap is not more than 20 mm.
Further, the closing plate comprises a steel plate.
When the operation cam 9 is rotated, the grounding manual action disc 2 rotates clockwise, the grounding manual action disc drives the spring support column 3 to move upwards, the spring support column 3 drives the grounding main shaft action disc 4 to rotate to an appointed position, grounding brake opening is performed, the spring support column 3 drives the grounding main shaft action disc 4 to rotate, meanwhile, the drive rod limiting column 5 is unlocked to push the drive rod 6 to move, the drive rod 6 drives the push rod 7 to move, the push rod 7 drives the rotating sheet 8 to rotate, the rotating sheet 8 rotates to the appointed position, the rotating sheet limiting column 1 locks the rotating sheet 8, main loop brake opening is performed, the whole main loop is closed at the moment, and grounding brake opening is performed.
The rotating sheet limiting column 1 is unlocked, the action sheet is released, the main loop is opened, meanwhile, the rotating sheet 8 pushes the push rod 7, the driving rod limiting column 5 is unlocked, the push rod 7 drives the driving rod 6 to rotate, the driving rod 6 drives the spring support column 3 to move downwards, the grounding is closed, at the moment, the whole main loop is opened, and the grounding closing action is completed.
Further, the deepened application aspect of the distribution box comprises the organic combination of the structural modules, and the distribution box is adjusted and optimized structurally, so that the distribution box is safer, more reliable and more widely applicable to low-voltage distribution projects.
The above-mentioned embodiments are intended to illustrate the objects, technical solutions and advantages of the present invention in further detail, and it should be understood that the above-mentioned embodiments are merely exemplary embodiments of the present invention, and are not intended to limit the scope of the present invention, and any modifications, equivalent substitutions, improvements and the like made within the spirit and principle of the present invention should be included in the scope of the present invention.
Claims (6)
1. The grounding mechanism of the low-voltage distribution box is characterized by being used in low-voltage power failure operation, and being arranged in the low-voltage distribution box and used for grounding, isolating and protecting equipment and lines of the distribution box;
the grounding mechanism comprises an operating cam (9), a grounding manual action disc (2), a spring support column (3), a grounding main shaft action disc (4), a driving rod limiting column (5), a driving rod (6), a push rod (7), a rotating sheet (8), a rotating sheet limiting column (1) and a main loop action disc;
the operating cam (9), the grounding manual action disc (2), the spring support column (3) and the grounding main shaft action disc (4) are sequentially connected;
the operation cam (9) is used for driving the grounding manual action disc (2) to rotate, the grounding manual action disc (2) is used for driving the spring support columns (3) to move, and the spring support columns (3) are used for driving the grounding main shaft action disc (4) to rotate;
the driving rod (6), the push rod (7) and the rotating sheet (8) are sequentially connected, and the rotating sheet limiting column (1) is in transmission connection with the main loop action disc;
the driving rod (6) is provided with a driving rod limiting column (5), and the rotating sheet (8) is provided with a rotating sheet limiting column (1);
the driving rod limiting column (5) is used for limiting the driving rod (6), the driving rod (6) is used for driving the push rod (7) to move, the push rod (7) is used for driving the rotating sheet (8) to rotate, and the rotating sheet limiting column (1) is used for limiting the rotating sheet (8);
a main loop action disc connected with the rotating sheet limiting column (1) is switched off in a main loop, and a grounding mechanism is switched on;
a main loop action disc connected with the rotating sheet limiting column (1) is switched on in the main loop, and the grounding mechanism is switched off.
2. The grounding mechanism of a low-voltage distribution box according to claim 1, wherein the grounding structure comprises two states, namely closing and opening;
when the grounding mechanism is in a brake opening process, the grounding manual action disc (2) rotates clockwise, the spring support column (3) moves upwards, when the grounding main shaft action disc (4) rotates to a brake opening position of the grounding main shaft action disc (4), the grounding brake is opened, the driving rod limiting column (5) is unlocked, the rotating sheet (8) rotates to a brake opening position of the rotating sheet (8), and a main loop is closed;
when the grounding mechanism is in a switching-on process, the rotating sheet limiting column (1) is unlocked, the rotating sheet (8) is released, the main circuit is switched off, the driving rod limiting column (5) is unlocked, the spring supporting column (3) moves downwards, and the grounding switching-on is realized.
3. The grounding mechanism of a low-voltage distribution box according to claim 1, further comprising a sealing plate for separating a room in which the grounding mechanism is located from the electric energy meter and the measuring transformer in the low-voltage distribution box, wherein the thickness of the sealing plate is not less than 2mm, and the gap is not more than 20 mm.
4. A grounding mechanism for low-voltage distribution boxes according to claim 3, characterized in that said plate comprises a steel plate.
5. The opening method of the grounding mechanism of the low-voltage distribution box is characterized by comprising the following steps of:
when the operating cam (9) is rotated, the grounding manual action disc (2) rotates clockwise, the grounding manual action disc (2) drives the spring support columns (3) to move upwards, the spring support columns (3) drive the grounding main shaft action disc (4) to rotate to a specified position, and grounding is switched off;
meanwhile, the driving rod limiting column (5) is unlocked, the driving rod (6) is pushed to move, the driving rod (6) drives the push rod (7) to move, the push rod (7) drives the rotating sheet (8) to rotate, the rotating sheet (8) rotates to a specified position, the rotating sheet limiting column (1) locks the rotating sheet (8), a main loop is switched on, and the grounding brake-off action is completed.
6. The closing method of the grounding mechanism of the low-voltage distribution box is characterized by comprising the following steps of:
the rotating sheet limiting column (1) is unlocked, the rotating sheet (8) is released, the main circuit is switched off, meanwhile, the rotating sheet (8) pushes the push rod (7), the driving rod limiting column (5) is unlocked, the push rod (7) drives the driving rod (6) to rotate, the driving rod (6) drives the spring support column (3) to move downwards, the main circuit is switched off, and the grounding switching-on action is completed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011373339.8A CN112563768A (en) | 2020-11-30 | 2020-11-30 | Grounding mechanism of low-voltage distribution box and switching-on and switching-off method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011373339.8A CN112563768A (en) | 2020-11-30 | 2020-11-30 | Grounding mechanism of low-voltage distribution box and switching-on and switching-off method |
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| Publication Number | Publication Date |
|---|---|
| CN112563768A true CN112563768A (en) | 2021-03-26 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202011373339.8A Pending CN112563768A (en) | 2020-11-30 | 2020-11-30 | Grounding mechanism of low-voltage distribution box and switching-on and switching-off method |
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| Country | Link |
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| CN (1) | CN112563768A (en) |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103178450A (en) * | 2013-03-01 | 2013-06-26 | 无锡飞世龙机电有限公司 | Ring main unit grounding mechanism |
| CN103187187A (en) * | 2013-03-01 | 2013-07-03 | 无锡飞世龙机电有限公司 | Ring main unit main loop and acting mechanism for grounding on-off |
-
2020
- 2020-11-30 CN CN202011373339.8A patent/CN112563768A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103178450A (en) * | 2013-03-01 | 2013-06-26 | 无锡飞世龙机电有限公司 | Ring main unit grounding mechanism |
| CN103187187A (en) * | 2013-03-01 | 2013-07-03 | 无锡飞世龙机电有限公司 | Ring main unit main loop and acting mechanism for grounding on-off |
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Application publication date: 20210326 |
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