CN206179770U - Load switch switch -fuse combination electrical equipment overflows trip gear - Google Patents
Load switch switch -fuse combination electrical equipment overflows trip gear Download PDFInfo
- Publication number
- CN206179770U CN206179770U CN201621146526.1U CN201621146526U CN206179770U CN 206179770 U CN206179770 U CN 206179770U CN 201621146526 U CN201621146526 U CN 201621146526U CN 206179770 U CN206179770 U CN 206179770U
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- CN
- China
- Prior art keywords
- connecting lever
- fuse
- arm
- straight
- switch
- 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.)
- Expired - Fee Related
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Abstract
The utility model discloses a load switch switch -fuse combination electrical equipment overflows trip gear, trip gear sets up at the three -phase fuse and closes a floodgate between the sincere son, trip gear is including insulating pull rod, link the board, first turning arm, second turning arm and dropout semi -axis, the first end of first turning arm and the laminating of the three firing pin of three -phase fuse, the second end of first turning arm is articulated with the upper end of insulating pull rod, the lower extreme of insulating pull rod connects with the first end hinge of second turning arm, the second end and the first end hinge that links the board of second turning arm connect, even the second end of board is articulated at the half epaxial board that overflows of dropout with fixed mounting, the dropout semi -axis is connected with the sincere son that closes a floodgate. The utility model discloses a two four -bar linkage's combination is used, and after first opening the disconnection of looks fuse, the fuse firing pin pops out after machinery transmission back makes load switch three -phase separating brake simultaneously, cuts off whole circuit, and avoid the load to work in scarce looks circuit and received the damage, simple structure, the action is reliable rapidly.
Description
Technical field
The utility model is related to high-voltage electrical apparatus field of switches, more particularly to a kind of switch-fuse combination
Overcurrent release device.
Background technology
In the on high-tension side relaying configuration of the transformer of one-end substation, box-type substation and ring network power supply etc., load
Switch-fuse combined electric apparatus are with quite varied.It undertakes cut-offfing and mistake for running current using vacuum load switch
That what is flowed closes, and cut-offfing for short circuit current is born by fuse.When transformer breaks down, fuse fuses in time, energy
Reach and accurately, reliably, promptly cut off failure.But when three-phase fuse has fusing time difference, combined electrical apparatus cabinet phase shortage
Operation, the electric current of unblown phase surges suddenly, causes potential safety hazard, easily accidents caused.
Utility model content
The purpose of this utility model is that and provide switch-fuse combination in order to solve the above problems
Overcurrent release device.
The utility model is achieved through the following technical solutions above-mentioned purpose：
A kind of overcurrent release device of switch-fuse combination, the trip gear is arranged on three-phase fusing
Between device and the closing pawl of combined electrical apparatus, the trip gear include insulated tension pole, connecting plate, the first connecting lever, the second connecting lever and
Dropout semiaxis, the three-phase fuse is striker fuse, and the middle part of first connecting lever is by rotating shaft and the combined electrical apparatus
Framework is rotatably connected, and the first end of first connecting lever is fitted with three strikers of the three-phase fuse, and described first turns
Second end of arm is hinged with the upper end of the insulated tension pole, and the lower end of the insulated tension pole is cut with scissors with the first end of second connecting lever
Connect, middle-end and the framework of the combined electrical apparatus of second connecting lever are rotatably connected, the second end of second connecting lever and institute
The first end for stating connecting plate is hinged, and the second end of the connecting plate is hinged with the excessively stream plate being fixedly mounted on the dropout semiaxis, institute
State dropout semiaxis and the closing pawl against.
Specifically, the horizontal lower section in the three-phase fuse of the connecting plate, the insulated tension pole is vertically arranged between the three-phase
The lower section of fuse, first connecting lever and second connecting lever are separately positioned on the both sides of the insulated tension pole, and described first
The medial surface of connecting lever and second connecting lever is oppositely arranged and towards the insulated tension pole, the first end position of first connecting lever
In the top at the second end of second connecting lever, the first end of second connecting lever is located under the second end of first connecting lever
Side.
Preferably, second connecting lever includes the first straight-arm, the second straight-arm and square shaft, and the first end of first straight-arm is
Second end of second connecting lever, the second straight-arm first end is the first end of second connecting lever, first straight-arm
Second end is fixedly connected by the square shaft with the second end of second straight-arm, and first straight-arm hangs down with second straight-arm
Straight to arrange, the square shaft is rotatably connected with the combined electrical apparatus framework, first connecting lever, the insulated tension pole and described the
Two straight-arms constitute quadric chain I, first straight-arm, the connecting plate and excessively stream plate composition quadric chain II.
Further, the trip gear also includes extension spring, and the second end and the connecting plate and described second of the extension spring are turned
The hinge of arm hangs connection, and the extension spring is arranged on the lower section of the connecting plate, and electricity is combined in the second end of the extension spring with described
Device frame hanging connects.
The beneficial effects of the utility model are：
A kind of group of two quadric chains of overcurrent release device of switch-fuse combination of the utility model
Conjunction is used, and after the disconnection of phase fuse is first opened, after the ejection of fuse striker Jing after mechanical transfer, makes the on-load switch three-phase same time-division
Lock, cut off whole circuit, it is to avoid is supported on to be worked in phase shortage circuit and is damaged, simple structure, and be swift in motion reliability.
Description of the drawings
Fig. 1 is the structural representation of the overcurrent release device of switch-fuse combination described in the utility model.
Specific embodiment
Below in conjunction with the accompanying drawings the utility model is described in further detail：
As shown in figure 1, a kind of overcurrent release device of switch-fuse combination of the utility model, dress of threading off
Put between the closing pawl 10 for being arranged on three-phase fuse 1 and combined electrical apparatus, trip gear include insulated tension pole 3, connecting plate 4, the
One connecting lever 2, the second connecting lever, the extension spring 11 of dropout semiaxis 9, three-phase fuse 1 is striker fuse, and the middle part of the first connecting lever 2 passes through
Rotating shaft is rotatably connected with combined electrical apparatus framework, and the first end of the first connecting lever 2 is fitted with three strikers of three-phase fuse 1, the
Second end of one connecting lever 2 is hinged with the upper end of insulated tension pole 3, and the lower end of insulated tension pole 3 is hinged with the first end of the second connecting lever, the
The middle-end of two connecting levers is rotatably connected with the framework of combined electrical apparatus, and the second end and the first end of connecting plate 4 of the second connecting lever are hinged, even
Second end of plate 4 is hinged with the excessively stream plate 8 being fixedly mounted on dropout semiaxis 9, and dropout semiaxis 9 is with closing pawl 10 against drawing
Second end of spring 11 hangs with the hinge of the connecting lever of connecting plate 4 and second and is connected, and extension spring 11 is arranged on the lower section of connecting plate 4, and extension spring 11
The second end be connected with combined electrical apparatus frame hanging.
The distance between each parts position is as shown in figure 1, the i.e. horizontal lower section in three-phase fuse 1 of connecting plate, insulation
Pull bar 3 is vertically arranged between the lower section of three-phase fuse 1, and the first connecting lever 2 and the second connecting lever are separately positioned on the both sides of insulated tension pole 3, the
The medial surface of one connecting lever 2 and the second connecting lever is oppositely arranged and towards insulated tension pole 3, the first end of the first connecting lever 2 is located at second
The top at the second end of connecting lever, the first end of the second connecting lever is located at the lower section at the second end of the first connecting lever, and the second of the second connecting lever
End is positioned at the top of the first end of the second connecting lever.
Second connecting lever includes the first straight-arm 5, the second straight-arm 6 and square shaft 7, and the first end of the first straight-arm 5 is the second connecting lever
Second end, the first end of the second straight-arm 6 is the first end of the second connecting lever, and the second end of the first straight-arm 5 passes through the straight-arm of square shaft 7 and second
6 the second end is fixedly connected, and the first straight-arm 5 is vertically arranged with the second straight-arm 6, and square shaft 7 is rotatably connected with combined electrical apparatus framework,
First connecting lever 2, the composition quadric chain I of 3 and second straight-arm of insulated tension pole 6, the first straight-arm 5, connecting plate 4 and excessively stream plate 8 composition four
Linkage II.
A kind of operation principle of the overcurrent release device of switch-fuse combination of the utility model is as follows：
After phase fuse blows are first opened, the first end of first connecting lever of striker impact 2 of three-phase fuse 1 drives four to connect
Linkage I is moved, i.e., position as shown in Figure 1, and the first connecting lever 2 is rotated counterclockwise, and by insulated tension pole 3 the second straight-arm 6 is driven
Rotate clockwise, so as to the first straight-arm 5 for driving square shaft 7 and be fixed on square shaft 7 is rotated clockwise, by the first straight-arm 5
Drive quadric chain II move, connecting plate 4 pulls excessively stream plate 8 to rotate clockwise in the presence of the first connecting lever 2 so that with mistake
The dropout semiaxis 9 of the stream connection of plate 8 is rotated clockwise, and is realized and the dropout separating brake of closing pawl 10, it is achieved thereby that to on-load switch
Separating brake, other phases of three-phase fuse 1 are cut-off into functional transferring to on-load switch, it is to avoid be supported on work in the circuit of phase shortage
Make.
Before not changing fuse, striker keeps stretching out state so that dropout semiaxis 9 rotated clockwise and kept after dropout, machine
Can not again close a floodgate after structure separating brake, prevent maloperation.After changing fuse, in the first connecting lever 2, insulated tension pole 3 gravity of itself
Under the collective effect of the pulling force of extension spring 11, quadric chain I and the reset of quadric chain II are made, recover on-load switch normal
Divide-shut brake function.
The technical solution of the utility model is not limited to the restriction of above-mentioned specific embodiment, every according to skill of the present utility model
The technology deformation that art scheme is made, each falls within protection domain of the present utility model.
Claims (4)
1. a kind of overcurrent release device of switch-fuse combination, it is characterised in that：The trip gear is arranged on
Between three-phase fuse and the closing pawl of combined electrical apparatus, the trip gear include insulated tension pole, connecting plate, the first connecting lever, the
Two connecting levers and dropout semiaxis, the three-phase fuse is striker fuse, the middle part of first connecting lever by rotating shaft with it is described
Combined electrical apparatus framework is rotatably connected, and the first end of first connecting lever is fitted with three strikers of the three-phase fuse, institute
The second end and the upper end of the insulated tension pole for stating the first connecting lever is hinged, the lower end of the insulated tension pole and second connecting lever
First end is hinged, and middle-end and the framework of the combined electrical apparatus of second connecting lever are rotatably connected, and the of second connecting lever
Two ends are hinged with the first end of the connecting plate, the second end of the connecting plate and the excessively stream plate being fixedly mounted on the dropout semiaxis
Be hinged, the dropout semiaxis and the closing pawl against.
2. the overcurrent release device of switch-fuse combination according to claim 1, it is characterised in that：Institute
The horizontal lower section in the three-phase fuse of connecting plate is stated, the insulated tension pole is vertically arranged between the lower section of the three-phase fuse, described
First connecting lever and second connecting lever are separately positioned on the both sides of the insulated tension pole, first connecting lever and second connecting lever
Medial surface be oppositely arranged and towards the insulated tension pole, the first end of first connecting lever is located at the of second connecting lever
The top at two ends, the first end of second connecting lever is located at the lower section at the second end of first connecting lever.
3. the overcurrent release device of switch-fuse combination according to claim 2, it is characterised in that：Institute
The second connecting lever is stated including the first straight-arm, the second straight-arm and square shaft, the first end of first straight-arm is the of second connecting lever
Two ends, the second straight-arm first end is the first end of second connecting lever, and the second end of first straight-arm passes through the side
Axle is fixedly connected with the second end of second straight-arm, and first straight-arm is vertically arranged with second straight-arm, the square shaft
It is rotatably connected with the combined electrical apparatus framework, first connecting lever, the insulated tension pole and second straight-arm composition four connects
Linkage I, first straight-arm, the connecting plate and excessively stream plate composition quadric chain II.
4. the overcurrent release device of switch-fuse combination according to claim 1, it is characterised in that：Also
Including extension spring, the second end of the extension spring hangs with the hinge of the connecting plate and second connecting lever and is connected, and the extension spring is arranged
It is connected with the combined electrical apparatus frame hanging in the lower section of the connecting plate, and the second end of the extension spring.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621146526.1U CN206179770U (en) | 2016-10-21 | 2016-10-21 | Load switch switch -fuse combination electrical equipment overflows trip gear |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621146526.1U CN206179770U (en) | 2016-10-21 | 2016-10-21 | Load switch switch -fuse combination electrical equipment overflows trip gear |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206179770U true CN206179770U (en) | 2017-05-17 |
Family
ID=58680773
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621146526.1U Expired - Fee Related CN206179770U (en) | 2016-10-21 | 2016-10-21 | Load switch switch -fuse combination electrical equipment overflows trip gear |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206179770U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108054062A (en) * | 2017-10-31 | 2018-05-18 | 北京双杰电气股份有限公司 | A kind of trip gear |
-
2016
- 2016-10-21 CN CN201621146526.1U patent/CN206179770U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108054062A (en) * | 2017-10-31 | 2018-05-18 | 北京双杰电气股份有限公司 | A kind of trip gear |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20170517 Termination date: 20171021 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |