CN201946498U - Switch-off locking device of vacuum circuit breaker - Google Patents
Switch-off locking device of vacuum circuit breaker Download PDFInfo
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- CN201946498U CN201946498U CN2011200354347U CN201120035434U CN201946498U CN 201946498 U CN201946498 U CN 201946498U CN 2011200354347 U CN2011200354347 U CN 2011200354347U CN 201120035434 U CN201120035434 U CN 201120035434U CN 201946498 U CN201946498 U CN 201946498U
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- China
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- mounting bracket
- locking device
- key lock
- blocking lever
- vacuum circuit
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Abstract
The utility model provides a switch-off locking device of a vacuum circuit breaker and belongs to the technical field of accessories of circuit breakers. The vacuum circuit breaker comprises an operation mechanism which comprises a lateral plate and a switch-on bending plate pivotally connected on the lateral plate. The switch-off locking device is characterized in that: the switch-off locking device comprises a mounting bracket, a key lock, a key, a link rod, a pin, a reset spring and a lock plate; the mounting bracket is fixed on the lateral plate; the key lock is fixed on the mounting bracket; the key is used for being matched with the key lock in an inserted manner; the link rod is arranged on the mounting bracket in an up-and-down moving manner and is arranged to be vertical to the direction of the lock core of the key lock; the pin is vertically arranged at the middle part of the link rod in the length direction; the reset spring is sleeved on the link rod and is located between the pin and the lower part of the mounting bracket; the lock plate is arranged at the tail end of the key lock through a fixing piece and is in contact with the upper part of the pin; and the link rod moves downwards and is used for blocking the switch-on bending plate. The switch-off locking device has the following advantages: as the switch-off motion of the vacuum circuit breaker is locked through a mechanical key lock, an additional power supply in the prior art is avoided.
Description
Technical field
The utility model belongs to the circuit breaker accessory technical field, is specifically related to a kind of vacuum circuit-breaker brake-dividing locking device.
Background technology
In distribution system, in order to ensure power supply reliability with avoid misoperation, requiring lock for circuit breaker is fixed on the separating brake position is that circuit breaker is in gate-dividing state and can not closes a floodgate not conducting of circuit breaker this moment.Vacuum circuit-breaker brake-dividing locking device in the prior art, usually adopt the latching electromagnet of in electric loop, connecting, realize control by the control latching electromagnet to breaker closing action, promptly the closing locking electromagnet electric, feed motion that dead electricity is come limiting circuit breaker.Need therefore need extra supplemental powered source to comprising the exclusive circuit energising of this closing locking electromagnet owing to adopt this kind closing locking electromagnet to lock circuit breaker.In order to exempt supplemental powered source, following technical scheme produces with regard to being based on this problem.
Summary of the invention
The purpose of this utility model is will provide a kind of to need not extra supplemental powered source and lock for circuit breaker can be fixed on the vacuum circuit-breaker brake-dividing locking device of separating brake position.
The purpose of this utility model reaches like this, a kind of vacuum circuit-breaker brake-dividing locking device, described vacuum circuit-breaker comprises operating mechanism, described operating mechanism comprises side plate and the combined floodgate bent plate that is pivotally connected on the side plate, it is characterized in that: described brake-dividing locking device comprises mounting bracket, key lock, key, blocking lever, pin, back-moving spring, jam plate, mounting bracket is fixed on the side plate, key lock is fixed on the mounting bracket, key is used for and described key lock inserting, blocking lever places up or down on the mounting bracket and is vertical setting with the lock core direction of described key lock, middle part at described blocking lever length direction is vertically installed with pin, back-moving spring is set on the blocking lever and between the bottom of pin and mounting bracket, jam plate is installed on the terminal of key lock by fixture and contacts with the top of pin, is used to stop described combined floodgate bent plate after blocking lever moves downward.
In a specific embodiment of the present utility model, the top of described blocking lever is provided with one and is used to the jump ring that prevents that blocking lever breaks away from from mounting bracket.
In another specific embodiment of the present utility model, described fixture comprises packing ring and nut.
In another specific embodiment of the present utility model, described key lock is fixed on the described mounting bracket by nut.
In also specific embodiment of the present utility model, the top of described blocking lever is provided with and is used for the sensitive switch that matches with the upper end of blocking lever, and this sensitive switch is fixed on the mounting bracket and is serially connected in the closing circuit of circuit breaker.
In of the present utility model and then specific embodiment, described brake-dividing locking device also comprises the interlocking bent plate of a hub setting on side plate, the inboard of described interlocking bent plate leading section is formed with mating surface, described jam plate is forked, this jam plate has the first bar-shaped end and the second bar-shaped end, the described first bar-shaped end contacts with the top of pin, and the described second bar-shaped end is corresponding with the mating surface of described interlocking bent plate leading section.
The utility model realizes locking the separating brake action of vacuum circuit-breaker by mechanical key lock, so has exempted the supplemental powered source in the prior art.
Description of drawings
Fig. 1 is the stereochemical structure sketch of the utility model one embodiment.
Fig. 2 is the planar structure partial side view of the utility model the foregoing description.
Among the figure: 1. mounting bracket; 2. key lock, 21. nuts; 3. key; 4. jam plate, 41. first bar-shaped ends, 42. second bar-shaped ends, 43. fixtures, 431. packing rings, 432. nuts; 5. sensitive switch, 51. operating sides, 52. screws; 6. blocking lever, 61. jump rings; 7. sell; 8. back-moving spring; 9. interlocking bent plate, 91. level boards, 92. mating surfaces, 93. leading sections; 101. side plate, 102. combined floodgate bent plates, 1021. breach faces, 1022. medial surfaces, 103..
Embodiment
For the auditor that the makes Patent Office especially public can be expressly understood technical spirit of the present utility model and beneficial effect more, the applicant general elaborates in conjunction with the accompanying drawings in the mode of embodiment below, but to the description of embodiment all is not restriction to technical solutions of the utility model, any according to the utility model design done only for pro forma but not substantial equivalent transformation all should be considered as the technical solution of the utility model category.
Please refer to Fig. 1 and in conjunction with Fig. 2, a kind of vacuum circuit-breaker brake-dividing locking device, described vacuum circuit-breaker comprises operating mechanism, this operating mechanism comprises biside plate 101 and passes through the combined floodgate bent plate 102 of axle 103 hub settings on side plate 101, combined floodgate bent plate 102 is formed by the sheet metal bending, the one side is provided with breach face 1021, the inboard medial surface 1022 that forms of its bending.Combined floodgate bent plate 102 rotates the back inwards and hits operating mechanism to realize the combined floodgate of vacuum circuit-breaker.Described brake-dividing locking device is positioned at the front side of operating mechanism, and this brake-dividing locking device comprises mounting bracket 1, key lock 2, key 3, blocking lever 6, pin 7, back-moving spring 8, jam plate 4.Described mounting bracket 1 is formed by the flat-form material bending, is the rectangle shell of two sides opening, and fixes by the side plate 101 of modes such as screw, riveted joint with one side and operating mechanism one side.Described key lock 2 is fixed in the front side of described mounting bracket 1 by nut 21, specifically: offer the suitable through hole of a size at corresponding position, the front side of mounting bracket 1, key lock 2 passes this through hole and by the threaded engagement on nut 21 and this through hole, thereby key lock 2 is fixed on the mounting bracket 1.Described key 3 is supporting with key lock 2, the lock core of the key lock 2 that turns clockwise behind the key 3 insertion key locks 2, and key 3 can not be extracted key lock 2 in this process, has only when key 3 goes back to original position counterclockwise, and key 3 could be extracted from key lock 2.Described jam plate 4 is positioned at the end of key lock 2, and be fixed on the key lock 2 by securing member 43, jam plate 4 can be followed key lock 2 after being fixed on the key lock 2 lock core rotates, concrete installation process is: circular hole is offered at the middle part at jam plate 4, the size of this circular hole matches with the lock core of key lock 2, matches with double-screw bolt on the key lock 2 by packing ring 431, nut 432 and jam plate 4 is fixedly connected on the key lock 2.Jam plate 4 should be able to contact with the top of pin 7, and described contact is interpreted as moving downward by pushing pin 7 by the first bar-shaped end 41 on the jam plate 4 when jam plate 4 rotates counterclockwise.Described blocking lever 6 is cylindric, this blocking lever 6 passes the circular hole of described mounting bracket 1 upper and lower part, the circular hole of described upper and lower part can limit moving up and down of blocking lever 6, be provided with a jump ring 61 on the top of blocking lever 6, this jump ring 61 can guarantee to be unlikely to after blocking lever 6 moves downward to break away from from mounting bracket 1.Vertically at the middle part of blocking lever 6 length directions offer porosely, described pin 7 passes the hole at blocking lever 6 middle parts, stops thereby form one at blocking lever 6 middle parts.Described back-moving spring 8 is sleeved on the blocking lever 6, and between the bottom of pin 7 and mounting bracket 1.
After key lock 2 is in the lock state, be key lock 2 be rotated counterclockwise put in place after, this moment, jam plate 4 was followed the lock core rotation, to sell 7 with pin 7 contacted first bar-shaped ends 41 on the jam plate 4 and down promote, the bounce that blocking lever 6 overcomes reseting pressuring spring 8 moves downward, when it moves downward to assigned address, the medial surface 1022 that stops combined floodgate bent plate 102, thereby make combined floodgate bent plate 102 inwardly not rotate, promptly stoped the combined floodgate of circuit breaker, lock for circuit breaker is fixed on gate-dividing state.Because this moment, key lock 2 can be locked in this position by transfering to key 3, therefore after key 3 is transferred in this position lock for circuit breaker being decided to be can not "on" position, i.e. gate-dividing state.
The technical scheme that constitutes by above-mentioned parts, lock function that can be by key lock 2 is locked as vacuum circuit-breaker can not "on" position, i.e. gate-dividing state, thus realize the defencive function of locking vacuum breaker closing action.
Further improve above-mentioned technical scheme, make it under the prerequisite that locks the action of vacuum breaker closing by key lock 2, increase the circuit lock function.
This scheme is for being provided with a sensitive switch 5 above described blocking lever 6, described sensitive switch 5 is fixed on the mounting bracket 1 by screw 52, can certainly fix described sensitive switch 5 by other fixed form commonly used, sensitive switch 5 is after fixing, should guarantee operating side 51 on the sensitive switch 5 towards down, so that the cooperating of operating side 51 and blocking lever 6 upper ends.Described sensitive switch 5 is connected in series in the closing circuit of vacuum circuit-breaker, and described closing circuit is meant that part of control loop at closing coil place in the circuit breaker, and this control loop generally includes closing coil, auxiliary switch and sensitive switch 5 etc.After the closing circuit conducting, the effect of operating mechanism is realized the feed motion of vacuum circuit-breaker by closing coil internal electrical magnet.Owing to be in series with sensitive switch 5 in the closing circuit, when blocking lever 6 when upwards effect and the effect of hitting sensitive switch 5 hold 51, sensitive switch 5 conductings, thereby whole closing circuit conducting, closing coil can get electric and action.
Another kind of improved technical scheme makes it in the purpose that realizes many circuit breaker interlockings by key lock 2, and the circuit breaker interlocking refers to be provided with many circuit breakers that are associated in a Circuits System, for guaranteeing its not closed simultaneously a kind of safeguard procedures that are provided with.Improved technical scheme is specially: be equipped with interlocking bent plate 9, described interlocking bent plate 9 can adopt metal casting one-body molded, perhaps be welded according to shape by multi-sheets, one end pivoting of interlocking bent plate 9 is connected on the side plate 101, and the other end one end of rotating shaft (promptly away from) of interlocking bent plate 9 is provided with a level board 91.The front end leading section 93 of described level board 91 is being formed with mating surface 92 near the inboard.Particularly, described interlocking bent plate 9 is installed in the rotating shaft that links with operating mechanism, makes interlocking bent plate 9 when vacuum circuit-breaker closes a floodgate, can be pivotally lowered into assigned address, when the vacuum breaker open operation, can upwards turn to assigned address; Simultaneously, jam plate 4 is provided with the second bar-shaped end 42, this second bar-shaped end 42 is snakelike, its shape satisfies when the bent plate 9 of interlocking moves downward, and can block this second bar-shaped end 42, makes it can't follow key lock 2 and clockwise rotates and put in place, this moment since key lock 2 when key 3 does not rotate in place, can't take out key 3, and a plurality of keys 3 that many circuit breakers are joined are general, but quantity is less than circuit breaker quantity.Therefore the key 3 on this TV station circuit breaker can't take off, and other circuit breaker just can't close a floodgate because of lacking key 3, has so just reached the purpose of circuit breaker interlocking.
Claims (6)
1. vacuum circuit-breaker brake-dividing locking device, described vacuum circuit-breaker comprises operating mechanism, described operating mechanism comprises side plate (101) and is pivotally connected to combined floodgate bent plate (102) on the side plate (101), it is characterized in that: described brake-dividing locking device comprises mounting bracket (1), key lock (2), key (3), blocking lever (6), pin (7), back-moving spring (8), jam plate (4), mounting bracket (1) is fixed on the side plate (101), key lock (2) is fixed on the mounting bracket (1), key (3) is used for and described key lock (2) inserting, blocking lever (6) places mounting bracket (1) to go up and be vertical setting with the lock core direction of described key lock (2) up or down, middle part at described blocking lever (6) length direction is vertically installed with pin (7), back-moving spring (8) is set on the blocking lever (6) and is positioned between the bottom of pin (7) and mounting bracket (1), jam plate (4) is installed on the terminal of key lock (2) by fixture (43) and contacts with the top of pin (7), is used to stop described combined floodgate bent plate (102) after blocking lever (6) moves downward.
2. vacuum circuit-breaker brake-dividing locking device according to claim 1, the top that it is characterized in that described blocking lever (6) are provided with one and are used to the jump ring (61) that prevents that blocking lever (6) breaks away from from mounting bracket (1).
3. vacuum circuit-breaker brake-dividing locking device according to claim 1 is characterized in that described fixture (43) comprises packing ring (431) and nut (432).
4. vacuum circuit-breaker brake-dividing locking device according to claim 1 is characterized in that described key lock (2) is fixed on the described mounting bracket (1) by nut (21).
5. vacuum circuit-breaker brake-dividing locking device according to claim 1, the top that it is characterized in that described blocking lever (6) is provided with and is used for the sensitive switch (5) that matches with the upper end of blocking lever (6), and this sensitive switch (5) is fixed on mounting bracket (1) and goes up and be serially connected in the closing circuit of circuit breaker.
6. vacuum circuit-breaker brake-dividing locking device according to claim 1, it is characterized in that described brake-dividing locking device also comprises the interlocking bent plate (9) of a hub setting on side plate (101), the inboard of described interlocking bent plate (9) leading section is formed with mating surface (92), described jam plate (4) is forked, this jam plate (4) has the first bar-shaped end (41) and the second bar-shaped end (42), the described first bar-shaped end (41) contacts with the top of pin (7), and the described second bar-shaped end (42) is corresponding with the mating surface (92) of described interlocking bent plate (9) leading section.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011200354347U CN201946498U (en) | 2011-02-01 | 2011-02-01 | Switch-off locking device of vacuum circuit breaker |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011200354347U CN201946498U (en) | 2011-02-01 | 2011-02-01 | Switch-off locking device of vacuum circuit breaker |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201946498U true CN201946498U (en) | 2011-08-24 |
Family
ID=44473834
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011200354347U Expired - Lifetime CN201946498U (en) | 2011-02-01 | 2011-02-01 | Switch-off locking device of vacuum circuit breaker |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201946498U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104882312A (en) * | 2015-05-29 | 2015-09-02 | 珠海星玛智能电气有限公司 | Unlocking device used for three-in-two switch cabinet |
-
2011
- 2011-02-01 CN CN2011200354347U patent/CN201946498U/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104882312A (en) * | 2015-05-29 | 2015-09-02 | 珠海星玛智能电气有限公司 | Unlocking device used for three-in-two switch cabinet |
| CN104882312B (en) * | 2015-05-29 | 2017-05-10 | 星玛智能电气有限公司 | Unlocking device used for three-in-two switch cabinet |
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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: 20110824 |
|
| CX01 | Expiry of patent term |