CN104269770B - Sand prevention and decompression ring main unit - Google Patents
Sand prevention and decompression ring main unit Download PDFInfo
- Publication number
- CN104269770B CN104269770B CN201410565649.8A CN201410565649A CN104269770B CN 104269770 B CN104269770 B CN 104269770B CN 201410565649 A CN201410565649 A CN 201410565649A CN 104269770 B CN104269770 B CN 104269770B
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- CN
- China
- Prior art keywords
- cabinet
- connecting rod
- hole
- protective cover
- main unit
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
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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
- H02B13/00—Arrangement of switchgear in which switches are enclosed in, or structurally associated with, a casing, e.g. cubicle
- H02B13/02—Arrangement of switchgear in which switches are enclosed in, or structurally associated with, a casing, e.g. cubicle with metal casing
- H02B13/025—Safety arrangements, e.g. in case of excessive pressure or fire due to electrical defect
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02B—BOARDS, SUBSTATIONS OR SWITCHING ARRANGEMENTS FOR THE SUPPLY OR DISTRIBUTION OF ELECTRIC POWER
- H02B1/00—Frameworks, boards, panels, desks, casings; Details of substations or switching arrangements
- H02B1/26—Casings; Parts thereof or accessories therefor
- H02B1/28—Casings; Parts thereof or accessories therefor dustproof, splashproof, drip-proof, waterproof or flameproof
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Underground Structures, Protecting, Testing And Restoring Foundations (AREA)
Abstract
The invention relates to a sand prevention and decompression ring main unit. The sand prevention and decompression ring main unit comprises a unit body and four installation rods; the four corners of the lower end of the unit body is each provided with a connecting rod, one end of each connecting rod is movably connected to the unit body, a lantern ring is arranged at the other end of each connecting rod, each installation rod comprises a straight rod, one end of each straight rod is a tip end, the other end of each straight rod is a threaded end, a spiral blade is arranged at the position, close to the corresponding tip end, of each straight rod in a surrounding mode, the unit body is of a closed structure, a decompression valve is arranged at the upper end of the unit body and connected with the outer end of the unit body through a decompression hole, a protection cover is arranged at an outer port of the decompression hole, a wind deflector is arranged at the top end of the protection cover, and a through hole is formed in the lateral end of the protection cover and located in the lateral side of the wind deflector. The sand prevention and decompression ring main unit has the advantages that the decompression hole of the ring main unit is covered with the protection cover, and the wind deflector is arranged on the protection cover, so that the through hole in the protection cover is perpendicular to the air direction all the time and cannot directly face the wind, blown sand cannot enter the protection cover through the through hole in the protection cover easily, and the possibility that the decompression hole is blocked is avoided.
Description
Technical field
The present invention relates to ring main unit, especially relate to a kind of sand prevention pressure release ring main unit.
Background technology
Outdoor ring main unit adopts vacuum switch as breaking device, and SF6 gas common box type insulate, and compact conformation takes up an area face
Amass little, good looking appearance, can be with surrounding environment cooperation.Due to employing hermetically sealed, all insulation theory, institute in RVAC ring main unit
There are switch sections, be completely sealed in main tank body containing all high-voltage charged bodies and mechanism section, be not subject to condensation and extraneous filth ring
Border affects；Main box degree of protection, up to IP67, is equipped with the tangible end of Cusparia water proof type, can effectively defend the multiple area of rainwater
The infringement of sporadic flood.
Existing ring main unit is usually sealing, generally requires setting relief valve and carries out pressure release, prevents internal pressure excessive, damage
Bad to electronic device, relief valve is connected to outer end by a relief hole, and only when cabinet internal pressure is excessive, relief valve is
Relief hole is connected with cabinet, carries out pressure release, after the completion of pressure release, separate connection again, but the existing ring positioned at the big region of dust storm
Net cabinet, because dust storm is excessive, frequently results in pressure release hole plug.
Content of the invention
It is an object of the invention to overcoming the shortcoming and defect of above-mentioned prior art, provide a kind of sand prevention pressure release ring main unit,
Solve existing ring main unit be located at dust storm area when, the defect of pressure release hole plug often occurs.
The present invention is achieved through the following technical solutions：Sand prevention pressure release ring main unit, including cabinet and four mounting rods,
One connecting rod is respectively arranged with the lower end corner of described cabinet, connecting rod one end is movably attached to cabinet, and the other end sets
It is equipped with the collar, described mounting rod includes straight-bar, straight-bar one end is tip, the other end is the end of thread, on straight-bar at tip
Around being provided with helical-blade, and it is provided with baffle ring at the end of thread, the internal diameter of the collar and the diametric fit of straight-bar, described cabinet
Spaced half slot is disposed with the side of body, between adjacent half slot, is provided with semicircle raised line, described half slot with
Semicircle tab parallel, the described radius of half slot is consistent with the radius of semicircle raised line, the spacing between adjacent half slot and half
The diameter of circular groove is consistent, and cabinet is enclosed construction, and its upper end is provided with a relief valve, and relief valve is connected outer by relief hole
End, is provided with a protective cover at pressure relief vent external port, protective cover is hollow hemisphere shape, and protective cover is rotatably mounted on cabinet,
Its top is provided with a wind direction board, and wind direction board in the form of sheets, is vertically fixed on protective cover, and the side of protective cover is provided with one
Individual through hole, through hole is located at the side of wind direction board.When this device is installed, first measure distance, four mounting rods have been positioned over looped network
Cabinet surrounding, surrounds a quadrangle, four sides that when size of this quadrangle is put down with cabinet upper connecting rod, four collars are linked to be
Shape is consistent, and four mounting rods are squeezed in ground, mainly by being threaded into underground, because there being helical-blade, entering ground very comfortable, entering ground
Afterwards, retain baffle ring and the end of thread in upper end, at this moment put down connecting rod, the collar just puts the end of thread, be placed on baffle ring, then spiral shell
Nut is screwed on line end it is ensured that at this moment the collar without departing from will ring main unit fix, because helical-blade is in the resistance of vertical plane
Keep off it is ensured that mounting rod is difficult to directly be extracted, so wind is difficult to blow ring main unit.The cabinet surface of this device is provided with alternate
The half slot of arrangement and semicircle raised line, half slot is a cross section is semicircular groove, and semicircle raised line is that a cross section is
The bar of semicircle, both are spaced on cabinet, and by cabinet cutting perpendicularly, cabinet outer end constitutes sinusoidal line, when dust storm blows
During to cabinet, after sandstone bumps against cambered surface, can produce circumference to power so that sandstone to the lowest point move because there is sandstone on both sides
Move so that sandstone collides accumulation in the lowest point to the lowest point, follow-up sandstone clashes into because these collect the sandstone buffering stayed, to cabinet relatively
At thin the lowest point, impulsive force is very little, thus protecting cabinet, the sandstone of accumulation can drop because of gravity, but is because not
Disconnected have new sandstone, and the protection to cabinet is very good, and wind is offset because this lowest point is clashed into, and blows dynamics also very to cabinet
Little, ensure that the effect of the anti-blown sand of cabinet well.One protective cover is set outside the relief hole of this device, and protective cover is in hemisphere
Shape, it covers on relief hole, and protective cover rotation is installed, and top is sheet wind direction board, and when wind blows, wind direction board is just as wind vane
Equally so that bearing of trend is consistent with wind direction, the protective cover allowing for lower section rotates, and through hole is in protective cover side, and position
In the side of wind direction board, that is, at this moment through hole aperture is vertical with wind direction just to direction, that is, make that dust storm is rare to enter protective cover,
Relief hole is blocked.
Further, the bottom of above-mentioned protective cover is circumferential edge, and circumferential edge is provided with spin, facilitates protective cover to rotate.
Further, above-mentioned connecting rod and cabinet junction be arranged above anchor ear, the internal diameter of anchor ear and connecting rod
Cooperation, anchor ear includes two semi-rings, and one of semi-ring is fixed on cabinet.Anchor ear is used for the fixation of connecting rod, mainly ring
Net cabinet when mobile, connecting rod can whipping, be very in the way, be unfavorable for the carrying of device, so setting anchor ear, connecting rod is solid
Determine to live, facilitate carrying.
Further, the two ends of above-mentioned semi-ring are both provided with connector, and connector is provided with screwed hole.
Further, the distance of above-mentioned anchor ear to connecting rod and cabinet junction is less than the length of connecting rod it is ensured that connecting
Extension bar can be fixed by anchor ear.
The invention has the beneficial effects as follows：By a protective cover in the relief hole upper cover of ring main unit, protective cover arranges one
Wind direction board so that the through hole on protective cover is forever vertical with wind direction, not to windward so that blown sand is difficult to through through hole on protective cover
Enter protective cover, eliminate the possibility that relief hole is blocked.
Brief description
Fig. 1 is the structural representation of cabinet in embodiment 1；
Fig. 2 is the mounting structure schematic diagram of mounting rod in embodiment 1；
Fig. 3 is the sectional view of cabinet side in embodiment 1；
Fig. 4 is the mounting structure schematic diagram of protective cover in embodiment 1；
Fig. 5 is the structural representation of protective cover in embodiment 1；
Fig. 6 is the bottom schematic view of protective cover in embodiment 1；
Fig. 7 is the structural representation of cabinet in embodiment 2；
Fig. 8 is the structural representation of anchor ear in embodiment 2；
In figure, 1- cabinet, 2- mounting rod, 3- connecting rod, 4- anchor ear, 5- nut, 101- half slot, 102- semicircle raised line,
103- relief valve, 104- relief hole, 105- protective cover, 106- wind direction board, 107- through hole, 108- circumferential edge, 109- spin, 201-
Straight-bar, 202- is most advanced and sophisticated, the 203- end of thread, 204- helical-blade, 205- baffle ring, the 301- collar, 401- semi-ring, 402- connector,
403- screwed hole.
Specific embodiment
With reference to embodiment, the present invention is described in further detail, but the structure of the present invention be not limited only to following
Embodiment：
【Embodiment 1】
As shown in figures 1 to 6, sand prevention pressure release ring main unit, including cabinet 1 and four mounting rods 2, the lower end four of described cabinet 1
One connecting rod 3 is respectively arranged with angle, connecting rod 3 one end is movably attached to cabinet 1, and the other end is provided with the collar 301, described
Mounting rod 2 include straight-bar 201, straight-bar 201 one end is most advanced and sophisticated 202, and the other end is the end of thread 203, near most advanced and sophisticated on straight-bar 201
Around being provided with helical-blade 204 at 202, and it is provided with baffle ring 205, the internal diameter of the collar 301 and straight-bar at the end of thread 203
201 diametric fit, the described side of cabinet 1 is disposed with spaced half slot 101, between adjacent half slot 101
It is provided with semicircle raised line 102, described half slot 101 is parallel with semicircle raised line 102, the described radius of half slot 101 and half
The radius of boss bar 102 is consistent, and the spacing between adjacent half slot 101 is consistent with the diameter of half slot 101, and cabinet 1 is closing
Structure, its upper end is provided with a relief valve 103, and relief valve 103 connects outer end, pressure relief vent 104 external port by relief hole 104
Place is provided with a protective cover 105, and protective cover 105 is hollow hemisphere shape, and protective cover 105 is rotatably mounted on cabinet 1, its top
It is provided with a wind direction board 106, wind direction board 106 in the form of sheets, is vertically fixed on protective cover 105, the side of protective cover 105 sets
It is equipped with a through hole 107, through hole 107 is located at the side of wind direction board 106.When this device is installed, first measure distance, four have been pacified
Dress bar 2 is positioned over ring main unit surrounding, surrounds a quadrangle, four when the size of this quadrangle and cabinet 1 upper connecting rod 3 put down
The quadrangle that the individual collar 301 is linked to be is consistent, and four mounting rods 2 are squeezed in ground, mainly by being threaded into underground, because there being spiral
Leaf 204, enters ground very comfortable, after entering ground, retains baffle ring 205 and the end of thread 203 in upper end, at this moment puts down connecting rod 3, the collar
301 just put the end of thread 203, are placed on baffle ring 205, and nut 5 of then screwing on the end of thread 203 is not it is ensured that the collar 301 takes off
From, at this moment will ring main unit fix because helical-blade 204 vertical plane stop it is ensured that mounting rod 2 is difficult to directly be pulled out
Go out, so wind is difficult to blow ring main unit.Cabinet 1 surface of this device is provided with spaced half slot 101 and semicircle raised line
102, half slot 101 is a cross section is semicircular groove, and semicircle raised line 102 is the bar that a cross section is semicircle,
Both are spaced on cabinet 1, and by cabinet 1 cutting perpendicularly, cabinet 1 outer end constitutes sinusoidal line, when dust storm blows to cabinet, sand
After stone bumps against cambered surface, can produce circumference to power so that sandstone to the lowest point move because both sides have sandstone to the lowest point move,
Sandstone is made to collide accumulation in the lowest point, follow-up sandstone clashes into because these collect the sandstone buffering stayed, at the lowest point relatively thin to cabinet 1
Impulsive force is very little, thus protecting cabinet 1, the sandstone of accumulation can drop because of gravity, but is because constantly having fresh sand
Stone, the protection to cabinet 1 is very good, and wind is offset because this lowest point is clashed into, and blows dynamics also very little, very to cabinet 1
Ensure that well the effect of the anti-blown sand of cabinet 1.The relief hole 104 of this device is outer to arrange a protective cover 105, protective cover 105
In hemispherical, it covers on relief hole 104, and protective cover 105 rotation is installed, and top is sheet wind direction board 106, when wind blows, wind
To plate 106 just as wind vane the same so that bearing of trend is consistent with wind direction, allow for lower section protective cover 105 rotate, through hole
107 are in protective cover 105 side, and the side positioned at wind direction board 106, and that is, at this moment through hole 107 aperture to direction is being just and wind
To vertical, that is, make that dust storm is rare to enter protective cover 105, relief hole 104 is blocked.
Further, the bottom of above-mentioned protective cover 105 is circumferential edge 108, and circumferential edge 108 is provided with spin 109, convenient
Protective cover 105 rotates.
【Embodiment 2】
As Fig. 7, Fig. 8, the structure of the present embodiment is basically identical with embodiment 1, and difference is connecting rod 3 and cabinet 1
Junction be arranged above anchor ear 4, the internal diameter of anchor ear 4 is coordinated with connecting rod 3, and anchor ear 4 includes two semi-rings 401, wherein
One semi-ring 401 is fixed on cabinet 1.Anchor ear is used for the fixation of connecting rod, mainly ring main unit when mobile, connecting rod 3 meeting
Whipping, is very in the way, is unfavorable for the carrying of device, so setting anchor ear 4, connecting rod 3 is fixed, facilitates carrying.Half
The two ends of ring 401 are both provided with connector 402, and connector 402 is provided with screwed hole 403, and two semi-rings 401 pass through even
Joint 402 is fixing.The distance that anchor ear 4 arrives connecting rod 3 and cabinet 1 junction is less than the length of connecting rod 3 it is ensured that connecting rod 3
Can be fixed by anchor ear 4.
Claims (3)
1. sand prevention pressure release ring main unit is it is characterised in that include cabinet（1）With four mounting rods（2）, described cabinet（1）Under
End is respectively arranged with a connecting rod on corner（3）, connecting rod（3）One end is movably attached to cabinet（1）, the other end is provided with set
Ring（301）, described mounting rod（2）Including straight-bar（201）, straight-bar（201）One end is tip（202）, the other end is the end of thread
（203）, straight-bar（201）Upper close most advanced and sophisticated（202）Place is around being provided with helical-blade（204）, and near the end of thread（203）Place's setting
There is baffle ring（205）, the collar（301）Internal diameter and straight-bar（201）Diametric fit, described cabinet（1）Side on be disposed with
Spaced half slot（101）, adjacent half slot（101）Between be provided with semicircle raised line（102）, described half slot
（101）With semicircle raised line（102）Parallel, described half slot（101）Radius and semicircle raised line（102）Radius consistent, phase
Adjacent half slot（101）Between spacing and half slot（101）Diameter consistent, cabinet（1）For enclosed construction, its upper end is provided with
One relief valve（103）, relief valve（103）By relief hole（104）Connect outer end, pressure relief vent（104）It is provided with external port
One protective cover（105）, protective cover（105）For hollow hemisphere shape, protective cover（105）It is rotatably mounted on cabinet（1）On, its top
It is provided with a wind direction board（106）, wind direction board（106）In the form of sheets, vertically it is fixed on protective cover（105）On, protective cover（105）
Side be provided with a through hole（107）, through hole（107）Positioned at wind direction board（106）Side；
Described protective cover（105）Bottom be circumferential edge（108）, circumferential edge（108）On be provided with spin（109）；
Described connecting rod（3）With cabinet（1）Junction be arranged above anchor ear（4）, anchor ear（4）Internal diameter and connecting rod
（3）Cooperation, anchor ear（4）Including two semi-rings（401）, one of semi-ring（401）It is fixed on cabinet（1）On.
2. sand prevention pressure release ring main unit according to claim 1 is it is characterised in that described semi-ring（401）Two ends all
It is provided with connector（402）, connector（402）On be provided with screwed hole（403）.
3. sand prevention pressure release ring main unit according to claim 1 is it is characterised in that described anchor ear（4）To connecting rod（3）With
Cabinet（1）The distance of junction is less than connecting rod（3）Length.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410565649.8A CN104269770B (en) | 2014-10-22 | 2014-10-22 | Sand prevention and decompression ring main unit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410565649.8A CN104269770B (en) | 2014-10-22 | 2014-10-22 | Sand prevention and decompression ring main unit |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104269770A CN104269770A (en) | 2015-01-07 |
| CN104269770B true CN104269770B (en) | 2017-02-22 |
Family
ID=52161273
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410565649.8A Active CN104269770B (en) | 2014-10-22 | 2014-10-22 | Sand prevention and decompression ring main unit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104269770B (en) |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP3430997B2 (en) * | 1999-10-20 | 2003-07-28 | 日新電機株式会社 | Power equipment pressure relief device |
| JP5139234B2 (en) * | 2008-10-16 | 2013-02-06 | 株式会社東芝 | Pressure release device for gas insulation equipment |
| CN202282556U (en) * | 2011-10-28 | 2012-06-20 | 重庆博森电气集团开关有限公司 | Pressure-relief dust-proof device for switch cabinet |
| CN203278023U (en) * | 2013-02-16 | 2013-11-06 | 厦门逸强精密机械有限公司 | Switch cabinet pressure-reduction panel with ventilation device |
| CN204167768U (en) * | 2014-10-22 | 2015-02-18 | 四川蓝讯宝迩电子科技有限公司 | Sand prevention pressure release type ring main unit |
-
2014
- 2014-10-22 CN CN201410565649.8A patent/CN104269770B/en active Active
Also Published As
| Publication number | Publication date |
|---|---|
| CN104269770A (en) | 2015-01-07 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C41 | Transfer of patent application or patent right or utility model | ||
| CB03 | Change of inventor or designer information |
Inventor after: Zhu Jianhua Inventor after: Wang Zhigang Inventor after: Du Rui Inventor after: Tian Xinyu Inventor after: Bao Wei Inventor after: Ma Tinghong Inventor before: Li Shengfeng |
|
| COR | Change of bibliographic data | ||
| TA01 | Transfer of patent application right |
Effective date of registration: 20170117 Address after: 750200 Ningxia Yinchuan Desheng Industrial Park Hongqiao North Street No. 6-1 Applicant after: Ningxia Kaichen Electric Group Co., Ltd. Address before: 610000 Sichuan city of Chengdu province high tech Zone Shiyang Industrial Park Applicant before: Sichuan Lanxunbaoer Electronics Technology Co., Ltd. |
|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |