CN203721534U - Electric knife-switch latch-up protection device - Google Patents
Electric knife-switch latch-up protection device Download PDFInfo
- Publication number
- CN203721534U CN203721534U CN201420097710.6U CN201420097710U CN203721534U CN 203721534 U CN203721534 U CN 203721534U CN 201420097710 U CN201420097710 U CN 201420097710U CN 203721534 U CN203721534 U CN 203721534U
- Authority
- CN
- China
- Prior art keywords
- electric knife
- latch
- knife gate
- protection device
- locking
- 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 - Lifetime
Links
- 206010029987 Obturator Hernia Diseases 0.000 claims description 6
- 238000012423 maintenance Methods 0.000 abstract description 3
- 230000033001 locomotion Effects 0.000 abstract description 2
- 230000005540 biological transmission Effects 0.000 abstract 5
- 230000007257 malfunction Effects 0.000 description 4
- 230000009977 dual effect Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 238000005286 illumination Methods 0.000 description 1
- 238000007689 inspection Methods 0.000 description 1
Abstract
The utility model relates to an electric knife-switch latch-up protection device comprising a knife-switch operation mechanism box; a top portion of the knife-switch operation mechanism box is provided with an electric knife-switch transmission rod, a latch-up disc I and a latch-up disc II; a lower portion of the electric knife-switch transmission rod is sleeved by the latch-up disc I having a latch-up hole; the latch-up disc II is provided with a latch-up transmission rod and a limit mechanism, and the latch-up transmission rod is movably connected with a latch-up pin; the latch-up transmission rod is connected with a stroke switch connected with an intermediate relay, and the intermediate relay is connected with an electric knife-switch operation power supply; the electric knife-switch latch-up protection device is reliable in motions, and mechanical latch-up and electric latch-up are used for double latch-up; operation is flexible and convenient, and maintenance is easy.
Description
Technical field
The utility model relates to a kind of electric equipment protection device, relates in particular to a kind of electric knife gate latch-up protection device.
Background technology
During the electric knife gate operations such as GW-17, GW-16, GW-20, GW-6A type, after must having operations staff to use palmtop PC key (error-proof device) that this type electric knife gate operation terminal box error preventing lock is opened, in electric knife gate operation terminal box, use green, the red button that draws, closes electric knife gate to operate disconnecting link.And when upkeep operation, maintainer to electric knife gate mechanism case check, light maintenance, sometimes need mechanism case error preventing lock to untie.Although disconnect after disconnecting link general supply, just can disconnect the power supply in switch operation mechanism case, but check and light maintenance process in still likely touch minute, combined floodgate knob and motor machine part, secondary circuit part, if there is power supply power supply to access the generation of the switch mechanism great misoperation fault such as will cause that disconnecting link malfunction causes that disconnecting link closes by mistake.The electric knife gates such as GW-17, GW-16, GW-20, GW-6A type when normal operation its mechanism operation power supply in connecting, guarantee like this heating in mechanism case, drive the normal of tide, illumination functions, if being carried out to service without power-off, these functions will there is very large security risk, such as malfunction do not have locking minute, closing switch, touch secondary circuit by mistake and cause malfunction etc.
Utility model content
The utility model, for above-mentioned problems of the prior art, provides a kind of electric knife gate latch-up protection device, solved the problem that misoperation easily occurs for electric knife gate in prior art.
The technical solution of the utility model is as follows:
The top of switch operation mechanism case is provided with electric knife gate drive link, locking disc I and locking disc II, the bottom suit locking disc I of electric knife gate drive link, and locking disc I is provided with obturator hernia; Locking disc II is provided with locking drive link and position limiting structure, and locking drive link is flexibly connected lockweight; Locking drive link is connected with travel switch, and travel switch connects auxiliary relay, and auxiliary relay connects electric knife gate operating power.
Described electric knife gate drive link adopts engaged gears.
Position limiting structure on described locking disc II is that the edge of locking disc II is provided with convex edge, and groove is set on convex edge.
Described groove and lockweight match.
Described convex edge is provided with link, and described lockweight is provided with block ring; Link and block ring match.
Described travel switch is arranged on electric knife gate mechanism case bottom.
Advantageous effect of the present invention is as follows:
1, reliability: this device action is reliable, mechanical latching and the dual locking of electrical equipment locking.After mechanical latching, electrical equipment latch portion disconnects the circuit in switch operation mechanism case automatically, makes to lose power supply in switch operation mechanism case, thereby reaches dual locking.
2, operability: this device has flexible feature simple to operate, and operations staff need only open error preventing lock, and lockset position of coupler is adjusted to from locked position of coupler in lockweight position, just can reach unlocking state.The electrical appliance part power supply in electric knife gate operating mechanism case that can automatically close.After power supply indicator in inspection body case is normal, just can by minute, close knob electric knife gate operated.
3, be convenient to maintainability: some can not need have a power failure with regard to treatable problem to be convenient to that the equipment in electric knife gate operating mechanism case is checked to timely processing, as: in discovery mechanism case, intake, make moist, carry out dedusting etc.Thoroughly solved the problem that dare not process owing to being afraid of malfunction, misoperation.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model.
Fig. 2 is electrical block diagram of the present utility model.
In figure, 1, electric knife gate drive link, 2, locking disc I, 3, lockweight, 4, locking disc II, 5, locking drive link, 6, obturator hernia, 7, error preventing lock, 8, link, 9, switch operation mechanism case; ZJ: auxiliary relay, CJ1 CJ2: A.C. contactor, K1: travel switch, K2 K3: A.C. contactor start button, KK: power knife switch.
Embodiment
Referring to accompanying drawing, in conjunction with specific embodiments, describe concrete structure of the present utility model in detail.
Embodiment
As shown in Figure 1-2, the top of switch operation mechanism case 9 is provided with electric knife gate drive link 1, locking disc I 2 and locking disc II 4, and electric knife gate drive link adopts engaged gears, the motion deciliter of electric knife gate drive link rotating band three-phase disconnecting link; The bottom suit locking disc I 2 of electric knife gate drive link 1, locking disc I is provided with obturator hernia 6; Locking disc II is provided with locking drive link 5, and locking drive link 5 is flexibly connected lockweight 3, and lockweight is provided with block ring 7; The edge of locking disc II is provided with convex edge, and groove and link 8 are set on convex edge, and groove and lockweight match, and link and block ring match, and link and block ring are used for hanging error preventing lock; Locking drive link is connected with the travel switch K1 that is arranged on electric knife gate mechanism case bottom, travel switch K1 connects intermediate relay ZJ, intermediate relay ZJ connects electric knife gate operating power, and travel switch K1 drives intermediate relay ZJ to carry out opening and closing electric knife gate operating power.
Lockweight, fixing lower restriction of groove of locking disc II, has locking effect to electric knife gate drive link.Lockweight is removable pin, during the obturator hernia position of lockweight in locking disc I, and locking disc I locking; When staggered in obturator hernia position in lockweight rotation, locking disc I release.
Claims (6)
1. electric knife gate latch-up protection device, comprise switch operation mechanism case, the top that it is characterized in that switch operation mechanism case is provided with electric knife gate drive link, locking disc I and locking disc II, the bottom suit locking disc I of electric knife gate drive link, and locking disc I is provided with obturator hernia; Locking disc II is provided with locking drive link and position limiting structure, and locking drive link is flexibly connected lockweight; Locking drive link is connected with travel switch, and travel switch connects auxiliary relay, and auxiliary relay connects electric knife gate operating power.
2. electric knife gate latch-up protection device according to claim 1, is characterized in that described electric knife gate drive link adopts engaged gears.
3. electric knife gate latch-up protection device according to claim 1, is characterized in that the position limiting structure on described locking disc II is that the edge of locking disc II is provided with convex edge, and groove is set on convex edge.
4. electric knife gate latch-up protection device according to claim 3, is characterized in that described groove and lockweight match.
5. electric knife gate latch-up protection device according to claim 3, is characterized in that described convex edge is provided with link, and described lockweight is provided with block ring; Link and block ring match.
6. electric knife gate latch-up protection device according to claim 1, is characterized in that described travel switch is arranged on electric knife gate mechanism case bottom.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420097710.6U CN203721534U (en) | 2014-03-05 | 2014-03-05 | Electric knife-switch latch-up protection device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420097710.6U CN203721534U (en) | 2014-03-05 | 2014-03-05 | Electric knife-switch latch-up protection device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203721534U true CN203721534U (en) | 2014-07-16 |
Family
ID=51160672
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420097710.6U Expired - Lifetime CN203721534U (en) | 2014-03-05 | 2014-03-05 | Electric knife-switch latch-up protection device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203721534U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105375201A (en) * | 2015-10-30 | 2016-03-02 | 国网山东莱阳市供电公司 | Inserted pressure plate with blocking function |
| CN106409564A (en) * | 2016-10-21 | 2017-02-15 | 国家电网公司 | Simultaneous blocking anti-misoperation device and method by employing disconnecting link position and operation mechanism case |
-
2014
- 2014-03-05 CN CN201420097710.6U patent/CN203721534U/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105375201A (en) * | 2015-10-30 | 2016-03-02 | 国网山东莱阳市供电公司 | Inserted pressure plate with blocking function |
| CN106409564A (en) * | 2016-10-21 | 2017-02-15 | 国家电网公司 | Simultaneous blocking anti-misoperation device and method by employing disconnecting link position and operation mechanism case |
| CN106409564B (en) * | 2016-10-21 | 2018-06-19 | 国家电网公司 | It is latched anti-misoperation apparatus and method simultaneously using disconnecting link position and operating mechanism box |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20140716 |
|
| CX01 | Expiry of patent term |