CN205159149U - Looped netowrk cabinet earthing switch door interlock - Google Patents
Looped netowrk cabinet earthing switch door interlock Download PDFInfo
- Publication number
- CN205159149U CN205159149U CN201520917747.3U CN201520917747U CN205159149U CN 205159149 U CN205159149 U CN 205159149U CN 201520917747 U CN201520917747 U CN 201520917747U CN 205159149 U CN205159149 U CN 205159149U
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- CN
- China
- Prior art keywords
- tongue piece
- earthed switch
- transmission shaft
- main unit
- ring main
- 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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Abstract
The utility model relates to a looped netowrk cabinet earthing switch door interlock. The purpose is that the device that provides should be able to guarantee when opening the cable chamber door that earthing switch closes a floodgate, has simple structure and convenient operation's characteristics simultaneously. Technical scheme is: a looped netowrk cabinet earthing switch door interlock which characterized in that: the device including fix mount pad on looped netowrk cabinet casing, through the transmission shaft can around the horizontal axis rotate the tongue piece of ground location in the mount pad, vertical fixation on the transmission shaft and the spacing spring, the application of force that are used for withstanding cable chamber door top border downwards make transmission shaft anticlockwise rotation so that spacing spring breaks away from the shutting extension spring of cable chamber door and is used for controlling tongue piece and case spring turned angle's cam by the drive of earthing switch operating axis in the tongue piece.
Description
Technical field
The utility model relates to a kind of five-prevention interlocking device, specifically a kind of ring main unit earthed switch and interlocking device for cable vault door.
Background technology
Earthed switch is the main element of ring main unit, for the reliable ground of ring main unit primary circuit, can guarantee the fail safe of maintenance operation.And cable chamber door is the isolation protecting device of switch cubicle cable vault, by effective isolated operation personnel and cable vault's band high-tension cable, ensure the safety of operating personnel.
When practical operation, just can open cable chamber door (lift slide door) after needing earthed switch to close, if operating procedure mistake very easily has an accident, therefore be further improved.
Utility model content
The purpose of this utility model overcomes the deficiency in above-mentioned background technology, provides a kind of ring main unit earthed switch door interlock, and this device should be able to ensure that when opening cable chamber door earthed switch closes a floodgate, and has the feature that structure is simple and easy to operate simultaneously.
The technical solution of the utility model is: a kind of ring main unit earthed switch door interlock, is characterized in that: this device comprise the mount pad be fixed on ring main unit housing, by power transmission shaft can around horizontal axis be positioned at tongue piece in mount pad, be vertically fixed on power transmission shaft and for withstand cable chamber door top sides edge downwards limit spring, force in tongue piece and make power transmission shaft rotate counterclockwise to make limit spring depart from the locking extension spring of cable chamber door and drive the cam for controlling tongue piece and case spring rotational angle by earthed switch operating axis.
Described cam is fixed on earthed switch operating axis.
Described drive shaft axis is parallel to earthed switch operating axis axis.
The angle of the rotation of described tongue piece is 45-75 degree.
The two ends of described locking extension spring are separately fixed on tongue piece and holder.
The beneficial effects of the utility model are:
The utility model is the interlock be arranged between earthed switch and cable chamber door, and the earthed switch that only closes could remove the locking of pull-type cable chamber door, can effectively avoid like this misoperation occurs, and has ensured the safety of operating personnel; Meanwhile, the utility model structure is comparatively simple, operates also very convenient.
Accompanying drawing explanation
Fig. 1 is perspective view of the present utility model
Fig. 2 is the main TV structure schematic diagram of the utility model lock-out state.
Fig. 3 is the main TV structure schematic diagram of the utility model released state.
Fig. 4 is the perspective view of being furnished with ring main unit of the present utility model.
Embodiment
Below in conjunction with Figure of description, the utility model is described in further detail, but the utility model is not limited to following examples.
As shown in Figure 1, a kind of ring main unit earthed switch door interlock, comprises mount pad, power transmission shaft 2, tongue piece 3, limit spring 4, locking extension spring 5, cam 6 and earthed switch operating axis 7.
Described mount pad is fixed on ring main unit housing; Described mount pad comprises vertically to be arranged and the front apron 11 be parallel to each other and backboard 12 and the connecting plate 13 that is fixed between front apron and backboard; The bottom of described front apron and backboard is all shaped with the fixing feet (fixing feet is shaped with screw) of horizontal buckling; Described mount pad adopts 2.0 aluminizing zine plates to make.
Described power transmission shaft can be positioned in mount pad around horizontal axis; Power transmission shaft is rotatably positioned on the front apron and backboard of mount pad, and drive axis axis being parallel is in earthed switch operating axis pivot center.
Described tongue piece is fixed on power transmission shaft, and power transmission shaft can drive tongue piece to swing around horizontal axis.Described limit spring is arranged on above cable chamber door, and one end of limit spring is fixed on the end of power transmission shaft by attachment screw 41, and the length direction of limit spring is perpendicular to the length direction of power transmission shaft; When limit spring turns to downward overhang (length direction of limit spring is vertical direction), the top sides edge of cable chamber door can be withstood in the bottom of limit spring, stops cable chamber door upwards lifting; The two ends of described locking extension spring are separately fixed on tongue piece and holder, and locking extension spring is rotated (as shown in Figure 1) counterclockwise for driving tongue piece.
Described cam is fixed on earthed switch operating axis 7, and when rotating earthed switch operating axis, cam changes the position of limit spring by lower spatula, realizes unlocking or locking; The slewing area of described tongue piece is determined by the stroke of cam, and the rotational angle of tongue piece is 45-75 degree (being advisable with 60 degree).
Under locking extension spring pulls, tongue piece rotates counterclockwise to (tongue piece is resisted against least radius position, cam contour face) during extreme position, now tongue piece keeps poised state and limit spring to dangle downwards, when cam rotate drive tongue piece to be clockwise to extreme position time (tongue piece is resisted against maximum radius position, cam contour face), now tongue piece keeps poised state (cam withstands tongue piece and stops it to rotate backward) and limit spring is clockwise to obliquity.
Operation principle of the present utility model is as follows:
After ring main unit power-off, when rotating counterclockwise earthed switch operating axis, earthed switch closes a floodgate, promote lower tongue at cam and rotate clockwise certain angle, drive limit spring to rotate clockwise identical angle simultaneously, limit spring is made no longer to suppress the top sides edge of cable chamber door (lift slide door), when the utility model enters released state (as shown in Figure 3); Now just can upwards lifting open cable chamber door like a cork, carry out the work such as maintenance;
Staff overhauls complete, closes after cable chamber door, only need rotate clockwise earthed switch operating axis and limit spring just can be made to come back to hanging position, locking cable chamber door (can not mention from above and open), thus plays interlocking and prevent misoperation.
Claims (5)
1. a ring main unit earthed switch door interlock, it is characterized in that: this device comprises the mount pad be fixed on ring main unit housing, tongue piece (3) in mount pad can be positioned at around horizontal axis by power transmission shaft (2), to be vertically fixed on power transmission shaft and limit spring (4) for withstanding cable chamber door top sides edge downwards, forcing in tongue piece makes power transmission shaft rotate counterclockwise to make limit spring depart from the locking extension spring (5) of cable chamber door and drive the cam (6) for controlling tongue piece and case spring rotational angle by earthed switch operating axis (7).
2. a kind of ring main unit earthed switch door interlock according to claim 1, is characterized in that: described cam is fixed on earthed switch operating axis.
3. a kind of ring main unit earthed switch door interlock according to claim 2, is characterized in that: described drive shaft axis is parallel to earthed switch operating axis axis.
4. a kind of ring main unit earthed switch door interlock according to claim 3, is characterized in that: the rotational angle of described tongue piece is 45-75 degree.
5. a kind of ring main unit earthed switch door interlock according to claim 4, is characterized in that: the two ends of described locking extension spring are separately fixed on tongue piece and holder.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520917747.3U CN205159149U (en) | 2015-11-17 | 2015-11-17 | Looped netowrk cabinet earthing switch door interlock |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520917747.3U CN205159149U (en) | 2015-11-17 | 2015-11-17 | Looped netowrk cabinet earthing switch door interlock |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205159149U true CN205159149U (en) | 2016-04-13 |
Family
ID=55694814
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520917747.3U Active CN205159149U (en) | 2015-11-17 | 2015-11-17 | Looped netowrk cabinet earthing switch door interlock |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205159149U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108257804A (en) * | 2018-03-12 | 2018-07-06 | 川开电气有限公司 | A kind of novel looped network cabinet interlock |
| CN111342378A (en) * | 2020-04-01 | 2020-06-26 | 江苏核电有限公司 | Temporary unlocking tool and unlocking method for insulation measurement of switch cabinet |
-
2015
- 2015-11-17 CN CN201520917747.3U patent/CN205159149U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108257804A (en) * | 2018-03-12 | 2018-07-06 | 川开电气有限公司 | A kind of novel looped network cabinet interlock |
| CN108257804B (en) * | 2018-03-12 | 2023-07-14 | 川开电气有限公司 | Ring main unit interlocking device |
| CN111342378A (en) * | 2020-04-01 | 2020-06-26 | 江苏核电有限公司 | Temporary unlocking tool and unlocking method for insulation measurement of switch cabinet |
| CN111342378B (en) * | 2020-04-01 | 2024-03-19 | 江苏核电有限公司 | Temporary unlocking tool and method for switch cabinet insulation measurement |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |