CN106300119A - Switch-cabinet grounding dolly and ground connection, isolation and closing switch method - Google Patents
Switch-cabinet grounding dolly and ground connection, isolation and closing switch method Download PDFInfo
- Publication number
- CN106300119A CN106300119A CN201610851733.5A CN201610851733A CN106300119A CN 106300119 A CN106300119 A CN 106300119A CN 201610851733 A CN201610851733 A CN 201610851733A CN 106300119 A CN106300119 A CN 106300119A
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- CN
- China
- Prior art keywords
- contact
- conducting rod
- trolley
- insulating base
- swing arm
- Prior art date
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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
- H02B11/00—Switchgear having carriage withdrawable for isolation
- H02B11/12—Switchgear having carriage withdrawable for isolation with isolation by horizontal withdrawal
- H02B11/167—Switchgear having carriage withdrawable for isolation with isolation by horizontal withdrawal truck type
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02B—BOARDS, SUBSTATIONS OR SWITCHING ARRANGEMENTS FOR THE SUPPLY OR DISTRIBUTION OF ELECTRIC POWER
- H02B11/00—Switchgear having carriage withdrawable for isolation
- H02B11/28—Earthing arrangements
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Elimination Of Static Electricity (AREA)
Abstract
The invention discloses a kind of switch-cabinet drawer-type grounding trolley, including trolley and three-phase upper insulating base combination side by side, lower insulating base combines, conducting rod and swing arm, the upper insulating base combined horizontal of each phase is supported in side, trolley upper end, each combination in inverted U-shaped lower insulating base is separately fixed in the side in the middle part of trolley, the conducting rod vertical support of each phase is in lower insulating base combines, the swing arm of each phase is positioned at the combination of lower insulating base, swing arm one end is hinged with trolley, the other end is hinged with the lateral pin outer end being vertically fixed on conducting rod lower end, support shaft one end passes that fanning strip one end of trolley and operating mechanism is fixing to be connected.The ground connection of the present invention, isolation and closing switch method, including following different method: A, ground connection, B, isolation, C, combined floodgate.Present configuration is the compactest, easily manufactured, volume is little, Operation and maintenance are convenient, the maintenance that improves small size box type transformer substation, the efficiency safeguarded, rush to repair.
Description
Technical field
The present invention relates to a kind of high-tension switch cabinet, particularly relate to the grounding trolley of a kind of high-tension switch cabinet bottom, further relate to
In grounding trolley, ground connection, isolation and the closing switch method of switch, belong to high voltage electrical apparatus technical field.
Background technology
Along with the growth requirement of power transmission, the small size box type transformer substation that volume is little, safety coefficient is high, easy to maintenance should
Transport and give birth to.But small size box type transformer substation is to have certain restriction requirement to supporting high-tension switch cabinet profile, and at present, height presses off
Closing cabinet commonly used SF6(sulfur hexafluoride) gas to reach to reduce product design, is preferably miniaturization case as dielectric
Formula transformer station supports the use, but SF6(sulfur hexafluoride) gas once leaks and can pollute environment, it is therefore desirable to develop one
Money is entirely capable of meeting the high-tension switch cabinet of small size box type transformer substation equipment requirements.
Switch in existing high-tension switch cabinet is rotary, as it is shown in figure 1, switch pedestal 100 is for sheet metal bending
Become, the settings of two switch pedestal 100 about diagonal angles, upper equipped with upper static contact 10 of the side of the switch pedestal 100 on top
Insulation column 101, the side of the switch pedestal 100 of bottom is equipped with the lower insulation column 201 with lower static contact 20, and upper insulation
Pillar 101 and lower insulation column 201 are towards on the contrary.It is supported on underframe 200 by jointed shaft 40 in the middle part of conductive casings 30.Conduction
Sleeve pipe 30 axial centre is contact rod 301, and outer peripheral face coated insulation set 302 in the middle part of it, the conductive casings 30 shown in Fig. 1 is in conjunction
The level of gate position, now, the termination, contact rod 301 two ends in conductive casings 30 be respectively clamped into upper static contact 10 and under quiet
In contact 20, electric current flows into from fixing the inlet wire copper bar being connected with upper static contact 10 connecting plate, in conductive casings 30 is axial
The contact rod 301 of the heart flows to lower static contact 20, then flows out through fixing the outlet copper bar being connected with the connecting plate of lower static contact 20,
Thus realize the conducting of electric current.The axial centre of conductive casings 30 rotates counterclockwise to heeling condition around supporting transverse axis center, makes
Obtain contact rod 301 two ends and depart from the upper static contact 10 of correspondence and lower static contact 20 respectively, thus realize the cut-out of electric current.This open
Pass volume is big, and structure is complicated, and manufacturing cost is high, and the contact rod 301 in conductive casings 30 swings up and down when switching on or off circuit,
Contact rod 301 two ends and upper and lower static contact centering difficulty.
Summary of the invention
It is an object of the invention to provide a kind of install switch-cabinet drawer-type grounding trolley simple, easy to use and ground connection,
Isolation and closing switch method.
The present invention is achieved by the following technical programs:
A kind of switch-cabinet grounding dolly, including the upper insulating base combination side by side of the trolley of cuboid and three-phase, lower absolutely
The combination of edge seat, conducting rod and swing arm, the upper insulating base combined horizontal of each phase is supported in side, trolley upper end, each
The lower insulating base of phase combines in inverted U-shaped, and described inverted U-shaped two ends are separately fixed in the side in the middle part of trolley, each phase
Conducting rod vertical support is in the upper horizontal sides that lower insulating base combines, and the swing arm of each phase is positioned at the upper water of lower insulating base combination
Between flat limit and lower horizontal sides, swing arm one end is hinged with trolley by the support shaft traversing trolley, and swing arm is another
One end is hinged with lateral pin outer end, and described lateral pin is vertically fixed on conducting rod lower end, and described support shaft one end passes trolley
Front side board, fixing with fanning strip one end of operating mechanism be connected.
The purpose of the present invention can also be realized further by techniques below measure.
Further, the combination of described upper insulating base includes that upper insulator and upper static contact, described upper static contact level are fixed
In upper insulator, described upper insulator rear end is fixed on the upper end of trolley side plate.
Further, the combination of described lower insulating base includes that inverted U-shaped lower insulator, inverted L-shaped gripper shoe, lower contact and ground connection are touched
Head, described inverted L-shaped gripper shoe is fixed in upper horizontal sides and the vertical edges of inverted U-shaped lower insulator, and described lower contact level is solid
It is scheduled in the lower horizontal sides of inverted U-shaped lower insulator, in the conducting rod vertical support lower contact in upper horizontal sides, grounding contact water
In the flat lower horizontal sides being fixed on inverted U-shaped lower insulator.
Further, the upper static contact of metal material, lower contact are identical with grounding contact structure all in annular, including circle
Annular bottom plate and be vertically distributed in annular base plate circumference the many elastic fingertips formed a circle, described in form a circle many
The top and the bottom of root elasticity fingertip outer circumferential are bound by annular bundle spring respectively, and upper static contact, lower contact and grounding contact are coaxial
Install；Conducting rod vertical support is in lower contact, and many fingertip upper ends are resisted against in conducting rod circumference.
Further, coated insulation set in the middle part of described swing arm, the swing arm other end is provided with portait slot bore, under conducting rod
The lateral pin outer end of end embeds in portait slot bore.
Ground connection, isolation and the closing switch method of a kind of switch-cabinet grounding dolly, including following different method:
A, ground connection
Pull fanning strip to rotate by the connecting rod of operating mechanism, thus drive swing arm to rotate down around the axle center of support shaft, pendulum
The portait slot bore of the lever other end is moved down by lateral pin band moving conductive rod, until conducting rod upper support is at lower contact
In, conducting rod lower end is injected in grounding contact, and conducting rod upper end does not contacts with upper static contact；
B, isolation
Pull fanning strip to rotate by the connecting rod of operating mechanism, thus drive swing arm to be rotated up around the axle center of support shaft, pendulum
The portait slot bore of the lever other end is moved up by lateral pin band moving conductive rod, until conducting rod midfoot support is at lower contact
In, conducting rod upper and lower end does not contacts with corresponding upper static contact and grounding contact；
C, combined floodgate
Pull fanning strip to rotate by the connecting rod of operating mechanism, thus drive swing arm to continue up around the axle center of support shaft and turn
Dynamic, the portait slot bore of the swing arm other end is continued to move up by lateral pin band moving conductive rod, until conducting rod lower support
In lower contact, conducting rod upper end is injected in upper static contact, and conducting rod lower end does not contacts with grounding contact.
The present invention realizes power supply circuits by the structures and methods moved up and down by operating mechanism band moving conductive rod
Ground connection, isolate and the switching of three positions of closing a floodgate.The upper static contact of the present invention, lower contact and grounding contact all use many elasticity to touch
Finger-type circularizes on the outer peripheral face being resisted against conducting rod for a week so that each contact all can keep the good contact with conducting rod,
Present configuration is the compactest, easily manufactured, volume is little, dependable performance, Operation and maintenance are convenient, solve miniaturization switch cubicle because of
Volume is little to be given maintenance or safeguards the inconvenience brought, the maintenance that improve small size box type transformer substation, the efficiency safeguarded, rush to repair.
Advantages of the present invention and feature, by for illustration and explanation by the non-limitative illustration of preferred embodiment below,
These embodiments, are only used as example referring to the drawings and are given.
Accompanying drawing explanation
Fig. 1 is the structure chart of existing rotary switch；
Fig. 2 is ground connection of the present invention, isolates and the structural representation of three kinds of states of closing a floodgate；
Fig. 3 is Fig. 2 top view；
Fig. 4 is the left view of Fig. 3；
Fig. 5 is the structure for amplifying schematic diagram of static contact of the present invention；
Fig. 6 is the top view of Fig. 5.
Detailed description of the invention
The invention will be further described with embodiment below in conjunction with the accompanying drawings.
As shown in Fig. 2～Fig. 6, the present embodiment includes trolley 1 and the three-phase upper insulating base side by side of cuboid
Combination 2, lower insulating base combination 3, conducting rod 4 and swing arm 5, on the downside of trolley 1, corner is respectively equipped with wheel 11, it is simple to pull-out
Or propelling trolley car body 1.The upper insulating base combination 2 of each phase is horizontally supported in side, trolley 1 upper end, upper insulating base group
Closing 2 and include upper insulator 21 and upper static contact 22, upper static contact 22 is horizontally fixed in upper insulator 2, and upper insulator 2 rear end is solid
It is scheduled on the upper end of trolley side plate 12.
The lower insulating base combination 3 of each phase is in inverted U-shaped, and inverted U-shaped two ends are separately fixed in the middle part of trolley side plate 12,
Conducting rod 4 vertical support of each phase is in the upper horizontal sides 311 of lower insulating base combination 3.Lower insulating base combination 3 includes inverted U-shaped
Lower insulator 31, inverted L-shaped gripper shoe 32, lower contact 33 and grounding contact 34, inverted L-shaped gripper shoe 32 is fixed on inverted U-shaped lower insulation
In the upper horizontal sides 311 of body 31 and vertical edges 312, improve the intensity of inverted U-shaped lower insulator 31.Lower contact 33 is horizontally fixed on
In the upper horizontal sides 311 of inverted U-shaped lower insulator 31, in conducting rod 4 vertical support lower contact 33 in upper horizontal sides 311, connect
Ground contact 34 is horizontally fixed in the lower horizontal sides 313 of inverted U-shaped lower insulator 31.
The swing arm 5 of each phase combines between upper horizontal sides 31 and the lower horizontal sides 32 of 3 at lower insulating base, swing arm 5
Right-hand member is hinged with trolley 1 by the support shaft 6 traversing trolley 1, and left end is hinged with lateral pin 41 outer end, and lateral pin 41 runs through
On conducting rod 4 lower end.Being coated with insulation sleeve 51 in the middle part of swing arm 5, swing arm 5 left end is provided with portait slot bore 52, conducting rod 4
Lateral pin 41 outer end of lower end embeds in portait slot bore 51.Support shaft 6 passes the front side board 13 of trolley 1, with operating mechanism
Fanning strip 7 one end fixing connect.
Lower insulating base combination 3 includes inverted U-shaped lower insulator 31, inverted L-shaped gripper shoe 32, lower contact 33 and grounding contact 34,
Inverted L-shaped gripper shoe 32 is fixed in upper horizontal sides 311 and the vertical edges 312 of inverted U-shaped lower insulator 31, improve inverted U-shaped lower absolutely
The intensity of edge body 31.Lower contact 33 is horizontally fixed in the lower horizontal sides 313 of inverted U-shaped lower insulator 31, conducting rod 4 vertical support
In lower contact 33 in upper horizontal sides 311, grounding contact 34 is horizontally fixed on the lower horizontal sides 313 of inverted U-shaped lower insulator 31
In.
As shown in Figure 5 and Figure 6, copper upper static contact 22, lower contact 33 are identical with grounding contact 34 structure all in annulus
Shape, including annular base plate 221 and be vertically distributed in annular base plate 221 circumference the many elastic fingertips formed a circle
222, described in the top and the bottom of many elastic fingertip 222 outer circumferentials that form a circle bound by the bundle spring 223 of annular respectively, on
Static contact 22, lower contact 33 and grounding contact 34 are co-axially mounted, it is simple to conducting rod 4 top and bottom are separately inserted the upper quiet of correspondence
Contact 22 and grounding contact 34.Conducting rod 4 vertical support is in lower contact 33, and many elastic fingertip 222 upper ends are resisted against conduction
In bar 4 circumference, improve conducting rod 4 and electrically connect effect with upper static contact 22, lower contact 33 and grounding contact 34.
Switch ground connection, isolation and the closing switch method of the present invention, including following distinct methods:
A, earthing position
As shown in the A of Fig. 2, manually or the connecting rod 8 of electronic operating mechanism pulls fanning strip 7 to rotate, thus drive swing
Bar 5 rotates down around the axle center of support shaft 6, and the portait slot bore 51 of swing arm 5 left end is downward by lateral pin 41 band moving conductive rod 4
Mobile, until conducting rod 4 upper support is in lower contact 33, conducting rod 4 lower end is injected in grounding contact 34, conducting rod 4 upper end
Do not contact with upper static contact 22.
B, isolated location
As shown in the B of Fig. 2, manually or the connecting rod 8 of electronic operating mechanism pulls fanning strip 7 to rotate, thus drive swing
Bar 5 is rotated up around the axle center of support shaft 6, and the portait slot bore 51 of swing arm 5 left end is by lateral pin 41 band moving conductive rod 4 upwards
Mobile, until conducting rod 4 midfoot support is in lower contact 33, conducting rod 4 upper and lower end not with corresponding upper static contact 22 and ground connection
Contact 34 contacts.
C, closing position
As shown in the C of Fig. 2, manually or the connecting rod 8 of electronic operating mechanism pulls fanning strip 7 to rotate, thus drive swing
Bar 5 continues up rotation around the axle center of support shaft 6, and the portait slot bore 51 of swing arm 5 left end is by lateral pin 41 band moving conductive rod 4
Continuing to move up, until conducting rod 4 upper support is in lower contact 33, conducting rod 4 upper end is injected in upper static contact 22, conduction
Bar 4 lower end does not contacts with grounding contact 34.
In addition to the implementation, the present invention can also have other embodiments, all employing equivalents or equivalent transformation shape
The technical scheme become, all falls within the protection domain of application claims.
Claims (6)
1. a switch-cabinet grounding dolly, including the trolley of cuboid, on the downside of described trolley, corner is respectively equipped with
Wheel；It is characterized in that, also include the three-phase combination of upper insulating base, the combination of lower insulating base, conducting rod and swing arm side by side, each
The upper insulating base combined horizontal of phase is supported in side, trolley upper end, and the lower insulating base of each phase combines in inverted U-shaped, described
Inverted U-shaped two ends are separately fixed in the side in the middle part of trolley, and the conducting rod vertical support of each phase combines at lower insulating base
Upper horizontal sides in, the swing arm of each phase between upper horizontal sides and the lower horizontal sides that lower insulating base combines, swing arm one
Holding hinged with trolley by traversing the support shaft of trolley, the swing arm other end is hinged with lateral pin outer end, described lateral pin
Being vertically fixed on conducting rod lower end, described support shaft one end passes the front side board of trolley, with the fanning strip of operating mechanism
One end is fixing to be connected.
2. switch-cabinet grounding dolly as claimed in claim 1, it is characterised in that the combination of described upper insulating base includes upper insulator
And upper static contact, described upper static contact is horizontally fixed in upper insulator, and described upper insulator rear end is fixed on trolley side
The upper end of plate.
3. switch-cabinet grounding dolly as claimed in claim 1, it is characterised in that the combination of described lower insulating base include inverted U-shaped under
Insulator, inverted L-shaped gripper shoe, lower contact and grounding contact, described inverted L-shaped gripper shoe is fixed on the upper water of inverted U-shaped lower insulator
In flat limit and vertical edges, described lower contact is horizontally fixed in the lower horizontal sides of inverted U-shaped lower insulator, conducting rod vertical support
In lower contact in upper horizontal sides, grounding contact is horizontally fixed in the lower horizontal sides of inverted U-shaped lower insulator.
4. switch-cabinet grounding dolly as claimed in claim 2 or claim 3, the upper static contact of metal material, lower contact and grounding contact
Structure is identical all in annular, including annular base plate and be vertically distributed in annular base plate circumference many formed a circle
Elastic fingertip, described in the top and the bottom of many elastic fingertip outer circumferentials that form a circle bound by annular bundle spring respectively, upper quiet
Contact, lower contact and grounding contact are co-axially mounted；Conducting rod vertical support is in lower contact, and many elastic fingertip upper ends are resisted against
In conducting rod circumference.
5. switch-cabinet grounding dolly as claimed in claim 1, it is characterised in that coated insulation set in the middle part of described swing arm, pendulum
The lever other end is provided with portait slot bore, and the lateral pin outer end of conducting rod lower end embeds in portait slot bore.
6. ground connection, isolation and the closing switch method of a switch-cabinet grounding dolly as claimed in claim 1, it is characterised in that bag
Include following different method:
A, ground connection
Pull fanning strip to rotate by the connecting rod of operating mechanism, thus drive swing arm to rotate down around the axle center of support shaft, pendulum
The portait slot bore of the lever other end is moved down by lateral pin band moving conductive rod, until conducting rod upper support is at lower contact
In, conducting rod lower end is injected in grounding contact, and conducting rod upper end does not contacts with upper static contact；
B, isolation
Pull fanning strip to rotate by the connecting rod of operating mechanism, thus drive swing arm to be rotated up around the axle center of support shaft, pendulum
The portait slot bore of the lever other end is moved up by lateral pin band moving conductive rod, until conducting rod midfoot support is at lower contact
In, conducting rod upper and lower end does not contacts with corresponding upper static contact and grounding contact；
C, combined floodgate
Pull fanning strip to rotate by the connecting rod of operating mechanism, thus drive swing arm to continue up around the axle center of support shaft and turn
Dynamic, the portait slot bore of the swing arm other end is continued to move up by lateral pin band moving conductive rod, until conducting rod lower support
In lower contact, conducting rod upper end is injected in upper static contact, and conducting rod lower end does not contacts with grounding contact.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610851733.5A CN106300119B (en) | 2016-09-27 | 2016-09-27 | Switch-cabinet grounding trolley and ground connection, isolation and closing switch method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610851733.5A CN106300119B (en) | 2016-09-27 | 2016-09-27 | Switch-cabinet grounding trolley and ground connection, isolation and closing switch method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106300119A true CN106300119A (en) | 2017-01-04 |
| CN106300119B CN106300119B (en) | 2019-01-29 |
Family
ID=57715070
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610851733.5A Active CN106300119B (en) | 2016-09-27 | 2016-09-27 | Switch-cabinet grounding trolley and ground connection, isolation and closing switch method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106300119B (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0684431A (en) * | 1992-09-03 | 1994-03-25 | Fuji Electric Co Ltd | Rectilinear three-position disconnecting switch |
| CN2578956Y (en) * | 2002-10-08 | 2003-10-08 | 李彤 | Direct-actuated three position switch |
| WO2012077963A1 (en) * | 2010-12-07 | 2012-06-14 | 현대중공업 주식회사 | Switch for a gas insulated switchgear |
| CN205452934U (en) * | 2015-12-11 | 2016-08-10 | 平高集团有限公司 | Inflatable cubical switchboard |
| CN206060011U (en) * | 2016-09-27 | 2017-03-29 | 镇江市丹高电器有限公司 | Switch-cabinet grounding dolly |
-
2016
- 2016-09-27 CN CN201610851733.5A patent/CN106300119B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0684431A (en) * | 1992-09-03 | 1994-03-25 | Fuji Electric Co Ltd | Rectilinear three-position disconnecting switch |
| CN2578956Y (en) * | 2002-10-08 | 2003-10-08 | 李彤 | Direct-actuated three position switch |
| WO2012077963A1 (en) * | 2010-12-07 | 2012-06-14 | 현대중공업 주식회사 | Switch for a gas insulated switchgear |
| CN205452934U (en) * | 2015-12-11 | 2016-08-10 | 平高集团有限公司 | Inflatable cubical switchboard |
| CN206060011U (en) * | 2016-09-27 | 2017-03-29 | 镇江市丹高电器有限公司 | Switch-cabinet grounding dolly |
Also Published As
| Publication number | Publication date |
|---|---|
| CN106300119B (en) | 2019-01-29 |
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