CN109787120A - A kind of electric power safety leakage protection device - Google Patents
A kind of electric power safety leakage protection device Download PDFInfo
- Publication number
- CN109787120A CN109787120A CN201910152894.9A CN201910152894A CN109787120A CN 109787120 A CN109787120 A CN 109787120A CN 201910152894 A CN201910152894 A CN 201910152894A CN 109787120 A CN109787120 A CN 109787120A
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- connecting rod
- plate
- rotatablely connected
- gravity
- bar
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Abstract
The invention discloses a kind of electric power safety leakage protection devices, relate generally to technical field of electric power distribution equipment.Including a kind of electric power safety leakage protection device, including distribution box and protective door, distribution box includes cabinet and chamber door, protective door includes fixed plate, gravity plate, band movable plate and connecting rod, fixed plate top and connecting rod one end are rotatablely connected, fixed plate bottom end and connecting rod one end are rotatablely connected, the connecting rod other end and gravity plate top are rotatablely connected, the connecting rod other end and gravity plate bottom end are rotatablely connected, gravity plate top is connect with link rotatable, gravity plate bottom end is connect with link rotatable, the connecting rod other end is rotatablely connected with movable plate top, the connecting rod other end and the rotation connection of drive board bottom end, gravity plate top is provided with attracting board, the electromagnet for attracting gravity plate is provided at the top of box inside.The beneficial effects of the present invention are: an isolating device can be formed at distribution box door opening in electric leakage prevents electricity piece to maintenance personal's electric discharge.
Description
Technical field
The present invention relates to technical field of electric power distribution equipment, specifically a kind of electric power safety leakage protection device.
Background technique
In electrical equipment fault because caused by electrical equipment short circuit electric leakage be common failure, there are many in electric leakage
Occur electrical component failure at distribution box, and electric leakage caused by electrical component failure needs worker's opening electric box check event
Barrier, what distribution box most often controlled is motor, and motor is large-scale inductive load, and what it is when distribution box control is large-scale inductive load
Or high pressure inverse electromotive force is likely to occur when capacitive load, there is the case where arc discharge, the process of maintenance may be to check man
People brings biggish risk.
Summary of the invention
The purpose of the present invention is to provide a kind of electric power safety leakage protection devices, it can be in distribution box door opening in electric leakage
Place forms an isolating device and prevents electricity piece to maintenance personal's electric discharge.
The present invention to achieve the above object, is achieved through the following technical solutions:
A kind of electric power safety leakage protection device, including distribution box and protective door,
The distribution box includes cabinet and chamber door, and the cabinet is square hollow metal plate shell, is provided in front of the cabinet
Door opening, the chamber door and cabinet door opening side are hinged, and the chamber door is matched with door opening,
The protective door includes fixed plate, gravity plate, band movable plate and connecting rod, and it is flat that the fixed plate is fixed on box house
Row is arranged in door opening, and the connecting rod includes first connecting rod, the second connecting rod, third connecting rod and the 4th connecting rod, described
Fixed plate top and first connecting rod one end are rotatablely connected, and the fixed plate bottom end and second connecting rod one end are rotatablely connected, institute
It states the first connecting rod other end and gravity plate top is rotatablely connected, the second connecting rod other end and the rotation of gravity plate bottom end connect
It connects, the gravity plate top and third connecting rod are rotatablely connected, and the gravity plate bottom end and fourth link are rotatablely connected, the third
The connecting rod other end is rotatablely connected with movable plate top, the fourth link other end and the rotation connection of drive board bottom end, described solid
Fixed board, gravity plate, band movable plate and connecting rod are the processing of excellence conductor material and are grounded, and the gravity plate top is provided with attraction
Plate, the attracting board are ferromagnetic material, and the electromagnet for attracting gravity plate, the gravity are provided at the top of the box inside
Plate contacts when being in upper limit position with electromagnet bottom.
The protective door further includes interlocking bar, and the interlocking bar includes the first interlocking bar, the second interlocking bar and third linkage
One end of bar, one end of first interlocking bar, one end of the second interlocking bar and third interlocking bar is hinged to form first turn
Axis, the one end of first interlocking bar far from first rotating shaft and fixed plate are rotatablely connected, and second interlocking bar is far from first turn
One end of axis and gravity plate are rotatablely connected, and the one end of the third interlocking bar far from first rotating shaft is rotatablely connected with movable plate, institute
Interlocking bar is stated as the processing of excellence conductor material.
Protective net is provided on the protective door, the protective net is the production of good conductive material, and the protective net is solid
It is scheduled on fixed plate, gravity plate and on movable plate.
It further include warning device, the warning device includes rotation seat, prompt bar and clump weight, and the rotation seat setting exists
Top of the box is provided with rotational pin at top edge on the rotation seat, the rotational pin axis is in parallel and box top
Setting, the rotational pin is arranged in the side of cabinet, is rotatablely connected in the middle part of the prompt bar with the rotational pin on rotation seat, described
Prompt bar stretches out top of the box profile one end when being in a horizontal position is fixedly connected with clump weight, and the prompt bar is ferromagnetic material
Material is made, when the prompt bar is horizontal positioned prompt club shaft by the top of electromagnet and with cabinet overlying contact.
The prompt bar surface is provided with red coatings.
It is set outside the prompt bar and is fixed with the ring anti-loaded ring of light coaxial with prompt bar.
The prior art is compared, the beneficial effects of the present invention are:
It is contacted when the gravity plate is in upper limit position under normal circumstances with electromagnet bottom, electromagnet is after master switch
Fang Zhilu connects electricity, and when power failure tripping, electromagnet, which can lose electric power, becomes no magnetic state, and the gravity plate being attracted originally loses
Attraction falls by self gravity, to complete the opening of entire protective door, can open chamber door after protective door is opened
Examination closure plug-in strip under state, reduces the arc discharge that distribution box internal short-circuit occurs and discharges to outside distribution box, have on protective door
The ground connection of effect can effectively stop arc discharge,
Detailed description of the invention
Attached drawing 1 is the structural upright schematic diagram of appearance short-circuit condition of the invention.
Attached drawing 2 is the structural upright schematic diagram of normal condition of the invention.
Label shown in attached drawing:
1, cabinet；2, chamber door；3, door opening；4, fixed plate；5, gravity plate；6, band movable plate；7, connecting rod；8, interlocking bar；9,
Electromagnet；10, first connecting rod；11, the second connecting rod；12, third connecting rod；13, the 4th connecting rod；14, the first interlocking bar；
15, the second interlocking bar；16, third interlocking bar；17, attracting board；18, protective net；19, rotation seat；20, bar is prompted；21, counterweight
Block；22, reflexed light ring.
Specific embodiment
Present invention will be further explained below with reference to specific examples.It should be understood that these embodiments are merely to illustrate the present invention
Rather than it limits the scope of the invention.In addition, it should also be understood that, after reading the content taught by the present invention, those skilled in the art
Member can make various changes or modifications the present invention, and such equivalent forms equally fall within range defined herein.
Embodiment: a kind of electric power safety leakage protection device, including distribution box, protective door and alarm device, the distribution
Case includes cabinet 1 and chamber door 2, and the cabinet 1 is square hollow metal plate shell, is provided with door opening 3, the case in front of the cabinet 1
Door is 2 hinged with 1 door opening of cabinet, 3 sides, and the chamber door 2 is matched with door opening 3, the chamber door 2 it is separate with 1 hinged place of cabinet in case
It is provided with handle on the outside of when door 2 is closed,
The protective door includes that fixed plate 4, gravity plate 5, band movable plate 6, connecting rod 7 and interlocking bar 8, the fixed plate 4 are solid
1 inside of cabinet is scheduled at door opening 3, the connecting rod 7 includes first connecting rod 10, the second connecting rod 11, third connecting rod
12 and the 4th connecting rod 13,4 top of fixed plate and 10 one end of first connecting rod be rotatablely connected, 4 bottom end of fixed plate with
The rotation connection of second connecting rod, 11 one end, 10 other end of first connecting rod and 5 top of gravity plate are rotatablely connected, and described second
11 other end of connecting rod and 5 bottom end of gravity plate are rotatablely connected, and 5 top of gravity plate and third connecting rod are rotatablely connected, described heavy
5 bottom end of power plate and fourth link are rotatablely connected, and the third connecting rod other end is rotatablely connected with 6 top of movable plate, and the described 4th
The connecting rod other end is rotatablely connected with 6 bottom end of movable plate, and the fixed plate 4, gravity plate 5, band movable plate 6 are parallel to each other, and described first
Connecting rod is arranged in parallel with second connecting rod, and the third connecting rod is arranged in parallel with fourth link,
When gravity plate 5 moves up and down the horizontal distance that can be directly changed between fixed plate 4 and gravity plate 5, band movable plate 6 by
Influence to 1 bottom plate of cabinet can only move horizontally, and change fixed plate 4, gravity plate 5 by moving up and down for gravity plate 5 in this way
With the spacing with movable plate 6, the movement of protective door opening is realized,
The interlocking bar 8 includes the first interlocking bar 14, the second interlocking bar 15 and third interlocking bar 16, first interlocking bar
One end of 14 one end, one end of the second interlocking bar 15 and third interlocking bar 16 is hinged to form first rotating shaft, and described first
The one end of interlocking bar 14 far from first rotating shaft and fixed plate 4 are rotatablely connected, second interlocking bar 15 far from first rotating shaft one
End is rotatablely connected with gravity plate 5, and the one end of the third interlocking bar 16 far from first rotating shaft is rotatablely connected with movable plate 6, at this time
The mechanism freedom of entire protective door is one, and remaining part can only realize the fortune in a direction under the drive of the gravity plate 5
It is dynamic, it will drive fixed plate 4 when the gravity plate 5 moves downward and with movable plate 6 to far from the movement of 5 direction of gravity plate, work as gravity
Plate 5 will drive fixed plate 4 and with movable plate 6 to close to the movement of 5 direction of gravity plate when moving upwards, band movable plate 6 will not be with case at this time
Sliding friction, which occurs, in 1 bottom plate of body can realize the opening of protective door,
The fixed plate 4, gravity plate 5, band movable plate 6, connecting rod 7 and interlocking bar 8 are the processing of excellence conductor material, described
Fixed plate 4, gravity plate 5, band movable plate 6, connecting rod 7 and interlocking bar 8 are copper, and 5 top of gravity plate is provided with attracting board
17, the attracting board 17 is ferromagnetic material, and the attracting board 17 uses structural carbon steel, and 1 inside top of cabinet is provided with
For attracting the electromagnet 9 of gravity plate 5, contacted when the gravity plate 5 is in upper limit position with 9 bottom of electromagnet, the electricity
9 magnetic pole of magnet is vertical direction, and 9 top of electromagnet is fixedly connected with top edge in cabinet 1, the magnetism of the electromagnet 9
1 shell of cabinet can be penetrated, attracts prompt bar 20 while attracting gravity plate 5, electromagnet 9 connects from master switch rear branch
Electricity, when power failure tripping, electromagnet 9, which can lose electric power, becomes no magnetic state, and the gravity plate 5 being attracted originally loses its reliss
It falls by self gravity, so that the opening of entire protective door is completed,
The fixed plate 4, gravity plate 5 pass through conducting wire with two components adjacent in movable plate 6, connecting rod 7 and interlocking bar 8
It is connected, the oxide layer of phase-contact surface should be removed by phosphoric acid corrosion, be fixed being brazed by scolding tin during the connection process, Gu
It should be connect with ground terminal by conducting wire on fixed board 4, the ground connection of fixed plate 4 should use respectively wired earth with distribution box, dispatch from the factory
When should do earthing test, it is ensured that each components are effectively grounded, and effective ground connection can prevent after short circuit
Protective net 18 is provided on the protective door, the protective net 18 is the production of good conductive material, the protection
Net 18 is compiled into line using copper wire and then works out networking, and 18 mesh aperture of protective net is three centimetres, the protective net 18
It is divided into two parts, 18 first part's horizontal direction both ends of protective net are brazed by using scolding tin in fixed plate 4 and again respectively
On power plate 5, the 18 second part horizontal direction both ends of protective net are brazed by using scolding tin in gravity plate 5 and with movable plate respectively
On 6,
The warning device includes rotation seat 19, prompt bar 20 and clump weight 21, and the setting of rotation seat 19 is pushed up in cabinet 1
Portion is at top edge, and 20 middle part of prompt bar is rotatablely connected with rotation seat 19, and the prompt bar 20 is in a horizontal position
When stretch out 1 top profile of cabinet one end be fixedly connected with clump weight 21, when clump weight 21 will drive prompt under no external force state
The rotation of bar 20 knows that clump weight 21 is stablized in bottom position, and the prompt bar 20 is made of carbon steel, when the prompt bar 20 is horizontal
It prompts 20 body of rod of bar to contact with 1 top surface of cabinet when placement, prompts 20 body of rod of bar to pass through electricity when the prompt bar 20 is horizontally arranged
The top of magnet 9, the prompt bar 20 can be attracted by electromagnet 9, and 20 surface of prompt bar is provided with red coatings, described
It is set outside prompt bar 20 and is fixed with the reflexed light ring 22 coaxial with prompt bar 20,
The power distribution cabinet general operation handle of 380V or more is all disposed within the side of distribution box, can be after protective door opening
Examination is closed plug-in strip in the state of opening chamber door 2, reduces the arc discharge that distribution box internal short-circuit occurs and discharges to outside distribution box, prevents
There is effective ground connection that can effectively stop arc discharge on shield door, and general distribution box is not to be individually arranged, and is set sometimes
Multiple distribution boxs are equipped with, need to check in turn when checking which distribution box goes wrong, the warning device also shadow by electromagnet 9
It rings, prompt bar 20 can revert to vertical shape under gravity of the horizontal positioned state in clump weight 21 after electromagnet 9 powers off
State prompts bar 20 to be apparently higher than distribution box, has apparent suggesting effect to staff, staff can effectively subtract at this time
Find the time of the distribution box of failure less, and do when opening distribution box relevant protection preparation in advance, and protective door with
Warning device be all opened voluntarily by gravity it is simple, conveniently, effectively, after completing maintenance electromagnet 9 be positive normal open electricity condition will
Drive gravity plate 5 mobile, until touching electromagnet 9, electromagnet 9 can attract and fix in the state of having electricity gravity plate 5, then
It will be prompted to bar 20 and be laid flat electromagnet 9 that the state for making its holding level fall can be attracted.
Claims (6)
1. a kind of electric power safety leakage protection device, it is characterised in that: including distribution box and protective door,
The distribution box includes cabinet and chamber door, and the cabinet is square hollow metal plate shell, is provided with door opening in front of the cabinet,
The chamber door and cabinet door opening side are hinged, and the chamber door is matched with door opening,
The protective door includes fixed plate, gravity plate, band movable plate and connecting rod, and the fixed plate is fixed on box house and is parallel to
Door opening setting, the connecting rod includes first connecting rod, the second connecting rod, third connecting rod and the 4th connecting rod, the fixation
Plate top and first connecting rod one end are rotatablely connected, and the fixed plate bottom end and second connecting rod one end are rotatablely connected, and described the
The one connecting rod other end and gravity plate top are rotatablely connected, and the second connecting rod other end and gravity plate bottom end are rotatablely connected,
The gravity plate top and third connecting rod are rotatablely connected, and the gravity plate bottom end and fourth link are rotatablely connected, and the third connects
The bar other end is rotatablely connected with movable plate top, the fourth link other end and the rotation connection of drive board bottom end, the fixation
Plate, gravity plate, band movable plate and connecting rod are the processing of excellence conductor material and are grounded, and the gravity plate top is provided with attraction
Plate, the attracting board are ferromagnetic material, and the electromagnet for attracting gravity plate, the gravity are provided at the top of the box inside
Plate contacts when being in upper limit position with electromagnet bottom.
2. a kind of electric power safety leakage protection device according to claim 1, it is characterised in that: the protective door further includes connection
Lever, the interlocking bar include the first interlocking bar, the second interlocking bar and third interlocking bar, one end of first interlocking bar, the
One end of two interlocking bar and one end of third interlocking bar are hinged to form first rotating shaft, and first interlocking bar is far from first turn
One end of axis and fixed plate are rotatablely connected, and the one end of second interlocking bar far from first rotating shaft and gravity plate are rotatablely connected, institute
It states the one end of third interlocking bar far from first rotating shaft to be rotatablely connected with movable plate, the interlocking bar is the processing of excellence conductor material.
3. a kind of electric power safety leakage protection device according to claim 2, it is characterised in that: be provided on the protective door
Protective net, the protective net are the production of good conductive material, and the protective net is fixed on fixed plate, gravity plate and with movable plate
On.
4. a kind of electric power safety leakage protection device according to claim 1, it is characterised in that: it further include warning device, institute
Stating warning device includes rotation seat, prompt bar and clump weight, and the rotation seat is arranged in top of the box at top edge, institute
It states and is provided with rotational pin on rotation seat, the rotational pin axis is arranged with box top in parallel, and the rotational pin is arranged in cabinet
Side, it is described prompt bar in the middle part of with rotation seat on rotational pin be rotatablely connected, stretching when the prompt bar is in a horizontal position
One end of top of the box profile is fixedly connected with clump weight, and the prompt bar is made of ferromagnetic material, when the prompt bar is horizontal
Prompted when placement club shaft by the top of electromagnet and with cabinet overlying contact.
5. a kind of electric power safety leakage protection device according to claim 4, it is characterised in that: the prompt bar surface setting
There are red coatings.
6. a kind of electric power safety leakage protection device according to claim 4, it is characterised in that: set outside the prompt bar solid
Surely there is the anti-loaded ring of light of ring coaxial with prompt bar.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910152894.9A CN109787120B (en) | 2019-02-28 | 2019-02-28 | Electric power safety electric leakage protector |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910152894.9A CN109787120B (en) | 2019-02-28 | 2019-02-28 | Electric power safety electric leakage protector |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109787120A true CN109787120A (en) | 2019-05-21 |
| CN109787120B CN109787120B (en) | 2020-08-25 |
Family
ID=66486019
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910152894.9A Expired - Fee Related CN109787120B (en) | 2019-02-28 | 2019-02-28 | Electric power safety electric leakage protector |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109787120B (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110671938A (en) * | 2019-10-08 | 2020-01-10 | 徐州工程学院 | High-safety gallium oxide high-temperature calcining furnace |
| CN111725773A (en) * | 2020-06-03 | 2020-09-29 | 国网山东省电力公司荣成市供电公司 | High-voltage cable joint box |
| CN112234469A (en) * | 2020-09-30 | 2021-01-15 | 李靖 | Electric power safety electric leakage protector that factor of safety is high |
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| CN208284883U (en) * | 2018-07-04 | 2018-12-25 | 福建省晋江市开关厂 | A kind of insulated switch cabinet |
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- 2019-02-28 CN CN201910152894.9A patent/CN109787120B/en not_active Expired - Fee Related
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2000357447A (en) * | 1999-06-15 | 2000-12-26 | Mitsubishi Electric Corp | Earth leakage breaker |
| CN203562759U (en) * | 2013-11-19 | 2014-04-23 | 国家电网公司 | Leakage inductance protection structure of distribution transformer |
| CN106936079A (en) * | 2015-12-29 | 2017-07-07 | 吴文革 | A kind of high-tension switch cabinet safe opening self-locking device |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110671938A (en) * | 2019-10-08 | 2020-01-10 | 徐州工程学院 | High-safety gallium oxide high-temperature calcining furnace |
| CN111725773A (en) * | 2020-06-03 | 2020-09-29 | 国网山东省电力公司荣成市供电公司 | High-voltage cable joint box |
| CN112234469A (en) * | 2020-09-30 | 2021-01-15 | 李靖 | Electric power safety electric leakage protector that factor of safety is high |
| CN112234469B (en) * | 2020-09-30 | 2022-08-16 | 广西深柳电子科技有限公司 | Electric power safety electric leakage protector that factor of safety is high |
Also Published As
| Publication number | Publication date |
|---|---|
| CN109787120B (en) | 2020-08-25 |
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Granted publication date: 20200825 Termination date: 20210228 |