CN203795988U - Indoor passive electromagnetic lock - Google Patents
Indoor passive electromagnetic lock Download PDFInfo
- Publication number
- CN203795988U CN203795988U CN201420044648.4U CN201420044648U CN203795988U CN 203795988 U CN203795988 U CN 203795988U CN 201420044648 U CN201420044648 U CN 201420044648U CN 203795988 U CN203795988 U CN 203795988U
- Authority
- CN
- China
- Prior art keywords
- lock
- dead bolt
- field effect
- circuit
- groove
- 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
Links
Abstract
The utility model discloses an indoor passive electromagnetic lock. The indoor passive electromagnetic lock comprises a lock cylinder and a control circuit. The lock cylinder comprises a lock column and a locking and unlocking mechanism. The lock column penetrates through a shell and is fixed into the shell in a sliding mode. The lock column is sleeved with a reset spring. The locking and unlocking mechanism comprises a spring bolt, a rotating shaft, a torsional spring, and an electromagnet unlocking device, wherein the spring bolt and a gear groove in the lock column are matched and locked, the rotating shaft is arranged at the lower end of the spring bolt, the torsional spring controls the spring bolt to enter the gear groove, and the electromagnet unlocking device controls the spring bolt to be unlocked. The control circuit comprises a rectifying circuit, a comparison circuit, a field effect switching tube, a charging battery and an unlocking button. The input end of the rectifying circuit is connected with the sensing end of a high-voltage wire. The output end of the rectifying circuit is connected with one end of the comparison circuit. The output end of the comparison circuit is connected with the control end of the field effect switching tube. The field effect switching tube, an unlocking electromagnetic coil, the unlocking button and the charging battery are connected in series to form a circuit. The indoor passive electromagnetic lock solves the technical problem that only under the condition that a high-voltage switch cabinet is not powered on, unlocking can be conducted.
Description
Technical field
The utility model relates to a kind of safety lock of high-tension switch cabinet.
Background technology
Traditional high-tension switch cabinet only has a common door lock, and this lock only has the single function of locking a door, and reaches the effect of isolating safely with the external world by locking.Can not distinguish high-tension switch cabinet due to common lock is the state in power-off or not power-off, even if maintenance personal opens lock, also will judge that whether high-tension switch cabinet is charged, otherwise can cause the problem of job safety.
Summary of the invention
The purpose of this utility model is to provide a kind of indoor passive electromagnetic lock, to solve high-tension switch cabinet in uncharged situation, the technical problem that just can unblank.
A kind of indoor passive electromagnetic lock, comprises lock core and control circuit; Described lock core comprises lock and locking and release mechanism; Described lock passes and slides and is fixed in shell, and on lock, cover has back-moving spring; Described locking comprises an electromagnet tripper that coordinates the dead bolt, the turning cylinder of dead bolt lower end, the control dead bolt that lock to enter the torsion spring of grade groove with the shelves groove of establishing on lock and control dead bolt release with release mechanism; Described control circuit comprises rectification circuit, comparison circuit, field effect transistor switch pipe, rechargeable battery and unlock button; Described rectification circuit input end connects the induction end of high-voltage line, and output is connected with one end of comparison circuit, and the output of comparison circuit is connected with the control end of field effect transistor switch pipe; This field effect transistor switch pipe is connected with releasing magnet coil, unlock button, rechargeable battery and is formed loop; Field effect transistor switch pipe is in rectification circuit input end conducting during without high-voltage signal.
The action feeler lever that described electromagnet tripper is magnet control drives one by the fixing fork of rotating shaft, this fork has a back-moving spring, its end has a lower inclined plane, and described dead bolt upper end has a ramp coordinating with the lower inclined plane of swing link end part; In the time of released state, described upper and lower inclined-plane combination, due to dead bolt and lock shelves groove not in same position, so dead bolt does not enter a grade groove; When lock is displaced downwardly to lock-out state, dead bolt rotates and enters a grade groove under the effect of torque spring, and dead bolt ramp moves, and fork lower inclined plane outer end is snapped in the draw-in groove of dead bolt ramp outer end, and dead bolt is stabilized in lock-out state; When release, the action feeler lever of magnet control drives fork to rotate, and fork lower inclined plane outer end departs from the draw-in groove of dead bolt ramp outer end, and dead bolt is released, and lock moves to released state under the effect of back-moving spring.
The utlity model has following advantage: make the lock of high-tension switch cabinet, there is the cut-out of intelligent decision cabinet inner high voltage no, to ensure in the time that high pressure is cut off, just can open the function of lock.
Brief description of the drawings
Fig. 1 is structural representation of the present utility model.
Fig. 2 is circuit theory diagrams of the present utility model.
In figure, number: 1, lock, 2, outer casing upper cover plate, 3, shell, 4, shell lower cover, 5, lock back-moving spring, 6, dead bolt turning cylinder, 7, electromagnet tripper, 8, the action feeler lever of electromagnet tripper, 9, fork, 10, fork back-moving spring, 11, dead bolt, 12, the shelves groove of lock.
Detailed description of the invention
Structure of the present utility model is referring to Fig. 1, and this indoor passive electromagnetic lock comprises lock core and control circuit.Described lock core comprises lock 1 and locking and release mechanism.Lock 1 passes and slides and is fixed in shell 3, and between lock 1 lower end and shell 3, cover has back-moving spring 5.This locking comprises an electromagnet tripper 7 that coordinates the dead bolt 11, the turning cylinder 6 of dead bolt 11 bottoms, the control dead bolt 11 that lock to enter the torsion spring of grade groove 12 with the shelves groove 12 of establishing on lock 1 and control dead bolt release with release mechanism.Shelves groove 12 be on lock 1, open one circle recessed grain, dead bolt 11 be bottom by the fixing fork of rotating shaft 6, torque spring is fixed in rotating shaft 6.Fork is L-shaped, has one to be applicable to the projection coordinating with shelves groove 12 near shelves groove 12 1 sides, and top has a ramp, has a draw-in groove in ramp outermost end.Have fork 9 outer ends to have a lower inclined plane, the other end of this fork 9 is fixed by rotating shaft and is had a back-moving spring 10.The action feeler lever 8 of magnet control drives described fork 9 to move.A key of unblanking that drives fork 9 can also be set, as manually unblanking.
In the time of released state, described upper and lower inclined-plane combination, due to dead bolt and lock shelves groove not in same position, so dead bolt does not enter a grade groove; When lock is displaced downwardly to lock-out state, dead bolt rotates and enters a grade groove under the effect of torque spring, and dead bolt ramp moves, and fork lower inclined plane outer end is snapped in the draw-in groove of dead bolt ramp outer end, and dead bolt is stabilized in lock-out state; When release, the action feeler lever of magnet control drives fork to rotate, and fork lower inclined plane outer end departs from the draw-in groove of dead bolt ramp outer end, and dead bolt is released, and lock moves to released state under the effect of back-moving spring.
Described control circuit comprises rectification circuit D1-D4, comparison circuit, field effect transistor switch pipe Q, rechargeable battery E and unlock button K; The induction end of described rectification circuit D1-D4 input termination high-voltage line, output is connected with one end of comparison circuit, and the output of comparison circuit is connected with the control end of field effect transistor switch pipe Q; This field effect transistor switch pipe Q connects with releasing magnet coil L, unlock button K, rechargeable battery E and forms loop; Field effect transistor switch pipe Q is in the conducting during without high-voltage signal of rectification circuit D1-D4 input.
Claims (2)
1. an indoor passive electromagnetic lock, comprises lock core and control circuit; It is characterized in that, described lock core comprises lock and locking and release mechanism; Described lock passes and slides and is fixed in shell, and on lock, cover has back-moving spring; Described locking comprises an electromagnet tripper that coordinates the dead bolt, the turning cylinder of dead bolt lower end, the control dead bolt that lock to enter the torsion spring of grade groove with the shelves groove of establishing on lock and control dead bolt release with release mechanism; Described control circuit comprises rectification circuit, comparison circuit, field effect transistor switch pipe, rechargeable battery and unlock button; Described rectification circuit input end connects the induction end of high-voltage line, and output is connected with one end of comparison circuit, and the output of comparison circuit is connected with the control end of field effect transistor switch pipe; This field effect transistor switch pipe is connected with releasing magnet coil, unlock button, rechargeable battery and is formed loop; Field effect transistor switch pipe is in rectification circuit input end conducting during without high-voltage signal.
2. the indoor passive electromagnetic lock of one according to claim 1, it is characterized in that, the action feeler lever that described electromagnet tripper is magnet control drives one by the fixing fork of rotating shaft, this fork has a back-moving spring, its end has a lower inclined plane, and described dead bolt upper end has a ramp coordinating with the lower inclined plane of swing link end part; In the time of released state, described upper and lower inclined-plane combination, due to dead bolt and lock shelves groove not in same position, so dead bolt does not enter a grade groove; When lock is displaced downwardly to lock-out state, dead bolt rotates and enters a grade groove under the effect of torque spring, and dead bolt ramp moves, and fork lower inclined plane outer end is snapped in the draw-in groove of dead bolt ramp outer end, and dead bolt is stabilized in lock-out state; When release, the action feeler lever of magnet control drives fork to rotate, and fork lower inclined plane outer end departs from the draw-in groove of dead bolt ramp outer end, and dead bolt is released, and lock moves to released state under the effect of back-moving spring.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420044648.4U CN203795988U (en) | 2014-01-23 | 2014-01-23 | Indoor passive electromagnetic lock |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420044648.4U CN203795988U (en) | 2014-01-23 | 2014-01-23 | Indoor passive electromagnetic lock |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203795988U true CN203795988U (en) | 2014-08-27 |
Family
ID=51378212
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420044648.4U Expired - Fee Related CN203795988U (en) | 2014-01-23 | 2014-01-23 | Indoor passive electromagnetic lock |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203795988U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106869609A (en) * | 2017-03-07 | 2017-06-20 | 宁波生久柜锁有限公司 | Bicycle lock |
| CN114396201A (en) * | 2021-12-24 | 2022-04-26 | 珠海沃顿电气有限公司 | Passive electromagnetic interlocking device |
-
2014
- 2014-01-23 CN CN201420044648.4U patent/CN203795988U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106869609A (en) * | 2017-03-07 | 2017-06-20 | 宁波生久柜锁有限公司 | Bicycle lock |
| CN114396201A (en) * | 2021-12-24 | 2022-04-26 | 珠海沃顿电气有限公司 | Passive electromagnetic interlocking device |
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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: 20140827 Termination date: 20160123 |
|
| EXPY | Termination of patent right or utility model |