CN201336239Y - Error-preventive operation interlocking mechanism for grounding switch - Google Patents
Error-preventive operation interlocking mechanism for grounding switch Download PDFInfo
- Publication number
- CN201336239Y CN201336239Y CNU2008202162072U CN200820216207U CN201336239Y CN 201336239 Y CN201336239 Y CN 201336239Y CN U2008202162072 U CNU2008202162072 U CN U2008202162072U CN 200820216207 U CN200820216207 U CN 200820216207U CN 201336239 Y CN201336239 Y CN 201336239Y
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- CN
- China
- Prior art keywords
- nut
- shaft
- cabinet
- circuit breaker
- tie
- 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 relates to a grounding switch error-preventive operation interlocking mechanism used in a switch cabinet, which belongs to high-voltage power transmission and distribution equipment. A grounding switch main shaft in the mechanism synchronously drives a front transmission shaft and a rear transmission shaft through a transmission mechanism; a screw rod at the middle section of the front transmission shaft is matched with a front nut capable of moving backwards and forwards, and a front stop lever is connected on the front nut; a drawing plate capable of moving up and down is installed on a front panel of the cabinet body, a limit plate is connected at the lower end of the drawing plate, and the limit plate is blocked to move when the front nut and the front stop lever move to the front end; a circuit breaker limit shaft is installed above the drawing plate, and a connecting rod hinged with a regulating crank at the front end of the circuit breaker limit shaft and the drawing plate is arranged between the regulating crank at the front end of the circuit breaker limit shaft and the upper part of the drawing plate; and a screw rod at the middle section of the rear transmission shaft is matched with a rear nut, a rear push rod is connected on the rear nut and the rear end of the rear push rod is connected with a rear door lock of the switch cabinet. The utility model has the advantages of simple structure, less transmission links, convenient manufacturing, installation and debugging, stable and reliable actions and reliable realization of the interlocking function of the grounding switch.
Description
Technical field
The utility model belongs to the high pressure equipment for power transmission and distribution, relates to a kind of earthed switch anti-misoperation interlocking device that is used for switch cubicle.
Background technology
High-tension switch cabinet in use, the interlocking of earthed switch must reach following requirement, promptly other operations (breaker switching-on operation etc.) should be under an embargo behind the earthed switch closing operation, and when earthed switch does not close a floodgate, also do not allow to open the switch cubicle back door charged interval is overhauled.In the switch cubicle of existing structure, the interlocking device of earthed switch exists the defectives such as poor reliability of complex structure, manufacturing and installation inconvenience, interlocking mostly.
Summary of the invention
Technical problem to be solved in the utility model is, a kind of simple in structure, manufacturing and easy for installation, the reliable earthed switch anti-misoperation of interlocking interlocking device are provided.
Earthed switch anti-misoperation of the present utility model interlocking device includes an earthed switch main shaft of level that is used for driving earthed switch that is positioned at the switch cabinet body middle part; The earthed switch main shaft drives the front propeller shaft that lays respectively at a level in the cabinet and back cabinet before the switch cubicle and the inter-axle shaft of a level simultaneously by transmission mechanism; The front propeller shaft stage casing is provided with one section screw mandrel, and this screw mandrel cooperates with a preceding nut that can move forward and backward, and is connected with a preceding pin that can move forward and backward with preceding nut on the preceding nut; Being equipped with one on the cabinet front panel can upper and lower mobile arm-tie, and the lower end of arm-tie is connected with one section limiting plate that stretches to the level of cabinet inboard, current nut and before pin can stop that limiting plate is moving that upper and lower makes progress when moving to front end; Be equipped with one on the cabinet of the top of arm-tie and can enter the circuit breaker limit shaft that closing position limits circuit breaker, circuit breaker limit shaft front end is connected with a connecting lever, be provided with between this connecting lever and the arm-tie top one with both hinged connecting rods, make the upper and lower of arm-tie move the rotation to control the circuit breaker limit shaft, and then can enter closing position to circuit breaker and limit; The inter-axle shaft stage casing also is provided with one section screw mandrel, this screw mandrel cooperates with a back nut that can move forward and backward, be connected with a back push rod that can move forward and backward with back nut on the back nut, the rear end of back push rod is connected with the back door lock of switch cubicle, the unlatching that moves horizontally door lock behind the control switch cabinet by the back push rod or close.
Transmission mechanism between described earthed switch main shaft and the forward and backward power transmission shaft is a worm-and-wheel gear.
The utility model is simple in structure, transmission link is few, and it is convenient to make, install and debug, and action is stable, reliable, has guaranteed the reliable realization of earthed switch interlock.
Description of drawings
Fig. 1 is a structural representation of the present utility model.
Embodiment
As shown in the figure, in this interlocking device, earthed switch main shaft 1 drives the front propeller shaft 3 that is positioned at preceding cabinet simultaneously by worm-and-wheel gear 2 and is positioned at inter-axle shaft 4 rotations of back cabinet, and forward and backward power transmission shaft drives preceding nut 5 by leading screw and nut mechanism respectively and back nut 6 moves horizontally.
When earthed switch closes a floodgate, nut 5 and preceding pin 7 moved forward before the rotation of front propeller shaft 3 can drive, pin 7 is blocked in limiting plate 9 tops on its place ahead arm-tie 8 before making, arm-tie 8 can't be moved up order about 10 rotations of circuit breaker limit shaft, on this position, circuit breaker can't enter closing position; Meanwhile, the rotating drive back nut 6 of inter-axle shaft 4 and back push rod 11 move forward, and door lock behind the switch cubicle 12 is opened, and at this moment can open the switch cubicle back door and overhaul.
When the earthed switch separating brake, nut 5 and preceding pin 7 moved backward before front propeller shaft 3 drove, stop that no longer arm-tie 8 moves up, at this moment move on the arm-tie and can drive 10 rotations of circuit breaker limit shaft, make circuit breaker can enter closing position by connecting rod 13 and connecting lever 14; Meanwhile, back nut 6 and back push rod 11 move under the driving of inter-axle shaft 4 backward, make switch cubicle after door lock 12 close, at this moment can't open the switch cubicle back door charged interval is overhauled.
Claims (2)
1, a kind of earthed switch anti-misoperation interlocking device, include an earthed switch main shaft (1) of level that is used for driving earthed switch that is positioned at switch cabinet body middle part, it is characterized in that: earthed switch main shaft (1) drives the front propeller shaft (3) that lays respectively at a level in the cabinet and back cabinet before the switch cubicle and the inter-axle shaft (4) of a level simultaneously by transmission mechanism; The front propeller shaft stage casing is provided with one section screw mandrel, and this screw mandrel cooperates with a preceding nut (5) that can move forward and backward, and is connected with a preceding pin (7) that can move forward and backward with preceding nut on the preceding nut; Being equipped with one on the cabinet front panel can upper and lower mobile arm-tie (8), the lower end of arm-tie is connected with one section limiting plate (9) that stretches to the level of cabinet inboard, and current nut (5) and preceding pin (7) can stop when moving to front end that limiting plate (9) is moving that upper and lower makes progress; On the cabinet of arm-tie (8) top a circuit breaker limit shaft (10) is installed, circuit breaker limit shaft front end is connected with a connecting lever (14), be provided with between this connecting lever and arm-tie (8) top one with both hinged connecting rods (13), arm-tie (8) upper and lower moved the rotation can control circuit breaker limit shaft (10); Inter-axle shaft (4) stage casing also is provided with one section screw mandrel, this screw mandrel cooperates with a back nut that can move forward and backward (6), be connected with a back push rod (11) that can move forward and backward with back nut on the back nut, the rear end of back push rod is connected with the back door lock (12) of switch cubicle.
2, earthed switch anti-misoperation according to claim 1 interlocking device, it is characterized in that: the transmission mechanism between earthed switch main shaft (1) and the forward and backward power transmission shaft (3,4) is worm-and-wheel gear (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008202162072U CN201336239Y (en) | 2008-11-20 | 2008-11-20 | Error-preventive operation interlocking mechanism for grounding switch |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008202162072U CN201336239Y (en) | 2008-11-20 | 2008-11-20 | Error-preventive operation interlocking mechanism for grounding switch |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201336239Y true CN201336239Y (en) | 2009-10-28 |
Family
ID=41287899
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2008202162072U Expired - Fee Related CN201336239Y (en) | 2008-11-20 | 2008-11-20 | Error-preventive operation interlocking mechanism for grounding switch |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201336239Y (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102324708A (en) * | 2011-09-16 | 2012-01-18 | 伊顿电力设备有限公司 | Device for interlocking chassis vehicle with cabinet door of circuit breaker chamber |
| CN105428136A (en) * | 2015-12-24 | 2016-03-23 | 向荣集团有限公司 | Switch interlock device for earthing switch, breaker and rear door of switch cabinet |
| CN106298315A (en) * | 2015-06-09 | 2017-01-04 | 向荣集团有限公司 | The earthed switch of turbine and worm mechanism and chopper front axle interlocking mechanism |
| CN106328426A (en) * | 2015-06-30 | 2017-01-11 | 向荣集团有限公司 | Earthing switch and rear door interlocking mechanism of turbine and worm rod mechanism |
-
2008
- 2008-11-20 CN CNU2008202162072U patent/CN201336239Y/en not_active Expired - Fee Related
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102324708A (en) * | 2011-09-16 | 2012-01-18 | 伊顿电力设备有限公司 | Device for interlocking chassis vehicle with cabinet door of circuit breaker chamber |
| CN102324708B (en) * | 2011-09-16 | 2013-10-23 | 伊顿电力设备有限公司 | Device for interlocking chassis vehicle with cabinet door of circuit breaker chamber |
| CN106298315A (en) * | 2015-06-09 | 2017-01-04 | 向荣集团有限公司 | The earthed switch of turbine and worm mechanism and chopper front axle interlocking mechanism |
| CN106298315B (en) * | 2015-06-09 | 2019-03-22 | 向荣集团有限公司 | The earthing switch of worm gear mechanism and breaker front axle interlocking mechanism |
| CN106328426A (en) * | 2015-06-30 | 2017-01-11 | 向荣集团有限公司 | Earthing switch and rear door interlocking mechanism of turbine and worm rod mechanism |
| CN106328426B (en) * | 2015-06-30 | 2019-03-22 | 向荣集团有限公司 | The earthing switch and rear door interlocking mechanism of worm gear mechanism |
| CN105428136A (en) * | 2015-12-24 | 2016-03-23 | 向荣集团有限公司 | Switch interlock device for earthing switch, breaker and rear door of switch cabinet |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20091028 Termination date: 20141120 |
|
| EXPY | Termination of patent right or utility model |