CN203491147U - Five-prevention interlocking device used for V-type lower isolation ring main unit - Google Patents
Five-prevention interlocking device used for V-type lower isolation ring main unit Download PDFInfo
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- CN203491147U CN203491147U CN201320565143.8U CN201320565143U CN203491147U CN 203491147 U CN203491147 U CN 203491147U CN 201320565143 U CN201320565143 U CN 201320565143U CN 203491147 U CN203491147 U CN 203491147U
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- main unit
- ring main
- interlocking device
- isolating
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Abstract
The utility model relates to a five-prevention interlocking device used for a V-type lower isolation ring main unit; the five-prevention interlocking device comprises positioning holes, a rotary shaft slot and an interlocking plate; the positioning holes and the rotary shaft slot are arranged on the interlocking plate; the positioning hole is round; the rotary shaft slot is arranged on a rotary shaft of a relay mechanism; the interlocking plate can rotate around the rotary shaft through the rotary shaft slot. When a grounding switch operation hole is in a closed position, the interlocking device is employed to block an opened isolation switch operation hole when the relay is in a closed position; when the relay is in an open position, the isolation switch operation hole is unblocked; therefore, the isolation switch cannot be forced to open when the relay is not open, thereby preventing safety accidents and malfunction of the isolation switch, so the V-type lower isolation ring main unit is not damaged, and personal safety of an operation person is protected.
Description
Technical field
The utility model relates to the anti-interlocking technology of ring main unit five field, is more particularly to a kind of can playing isolating the perfect ring main unit five-prevention interlocking device of the anti-interlocking of ring main unit five under circuit breaker.
Background technology
At present, as shown in Figure 1, the five anti-interlockings of isolating ring main unit under the V-type of using on market are safe not, easily cause the misoperation of isolating looped network cabinet-type air conditioner structure under V-type.Under V-type, isolate looped network cabinet-type air conditioner structure and be comprised of upper and lower two parts, the first half is called breaker mechanism, and the latter half is called interrupter.Breaker mechanism has a handle hole to be called breaker operator hole, during operation by handle update hole, clockwise rotate the spring energy-storage that handle makes breaker mechanism, after spring energy-storage, by the combined floodgate on breaker mechanism and opening button lead agency, close minute (noting: must first by switch knob, make mechanism from open position to closing position, and then make mechanism from closing position to open position by opening button).Interrupter has two handle holes, one is isolator operation hole, one is earthed switch handle hole, during operation, be also to operate by operating grip insertion isolating switch or earthed switch handle hole, clockwise rotate and can make isolating switch or earthed switch close a floodgate, rotate counterclockwise and can make isolating switch or grounding switch tripping.
The mode of operation of isolating looped network cabinet-type air conditioner structure under V-type is: (1) power transmission step, under earthed switch "on" position, lower door-plate is shut, and separate earthed switch, the isolating switch that closes, circuit breaker closes; (2) step of opening the door, first circuit breaker separately, then isolating switch separately, the earthed switch that then closes can be opened lower door-plate.Under V-type, isolating ring main unit operating mechanism must operate in strict accordance with the 1st and 2 step order, otherwise can damage operating mechanism or the danger such as electric shock occur.Wherein, in the step of opening the door, while not separating circuit breaker, breaker operator hole and isolator operation hole are all opened wide, and earthed switch handle hole is in closure state.Because earthed switch handle hole is in the close position, handle cannot insert, and there will not be the phenomenon of grounding misoperation switch.But owing to breaker operator hole and isolator operation hole all opening wide, easily there is separately circuit breaker, isolating switch separately by force, the misoperation of then closing earthed switch, result is damaged mechanism, and serious meeting produces the danger of electric shock to operating personnel.
Thereby need to invent a kind of five-prevention interlocking device, when earthed switch handle hole is in the close position, use interlock to block unlimited isolator operation hole when the breaker closing position by it is reached, when breaker open operation position, depart from isolator operation hole, thereby prevent, do not separate circuit breaker, the security incident of separating by force isolating switch.
Utility model content
In order to solve the safe not problem of five anti-interlockings of isolating ring main unit under V-type, the utility model provides a kind of novel five-prevention interlocking device, the perfect fail safe of isolating the five-prevention interlocking device of ring main unit under V-type, make operating mechanism when not separating circuit breaker, isolating switch and earthed switch handle hole be all in closure state, and operating grip cannot insert that reach cannot disconnecting switch operation and the object of earthed switch.Only, after circuit breaker separates, isolating switch hole is just in opening-wide state, and handle is update smoothly, thereby the security performance of operation is provided greatly, can prevent the generation of security incident.
The utility model solves the technical scheme that its technical problem adopts: a kind of for isolating the five-prevention interlocking device of ring main unit under V-type, comprise location hole, rotating shaft draw-in groove and interlock plate, described location hole and rotating shaft draw-in groove are all arranged on interlock plate, and described location hole is rounded, described rotating shaft draw-in groove is arranged on the rotation axis of breaker mechanism, and described interlock plate rotates by the described rotating shaft draw-in groove moving axis that rotates.
Further, described location hole is arranged on the upper end of described interlock plate, and described rotating shaft draw-in groove is arranged on the lower position of described location hole.
Further, describedly for isolating the five-prevention interlocking device of ring main unit under V-type, be on the whole spill.
The beneficial effects of the utility model are, prevent misoperation isolating switch, isolate looped network cabinet-type air conditioner structure and are not damaged, protection operating personnel's personal safety under protection V-type.
Below by embodiment, be described in more detail the utility model.
Accompanying drawing explanation
Fig. 1 is the anti-interlock plate schematic diagram of existing ring main unit five;
Fig. 2 is of the present utility model for isolating the five-prevention interlocking device schematic diagram of ring main unit under V-type;
Fig. 3 is the schematic diagram of each handle hole of ring main unit;
Fig. 4 is provided with under V-type to isolate after ring main unit five-prevention interlocking device, and circuit breaker is each handle hole view during separating brake not;
Fig. 5 installs under V-type to isolate after ring main unit five-prevention interlocking device, each handle hole view after breaker open operation.
Embodiment
Below in conjunction with accompanying drawing 1 and Fig. 5, with embodiment, the technical solution of the utility model is further elaborated.But protection range of the present utility model is not limited to this.
As shown in Figure 1, wherein show of the present utility model for isolating the structural representation of the five-prevention interlocking device 100 of ring main unit under V-type, as shown in FIG., for isolating the five-prevention interlocking device 100 of ring main unit under V-type, comprise location hole 1, rotating shaft draw-in groove 2 and interlock plate 10, when device is installed, rotating shaft draw-in groove 2 is stuck in as shown in Figure 2 on circuit breaker rotation axis 7, and the location hole in Fig. 11 is connected with breaker mechanism body, make to isolate under V-type the anti-interlock plate of ring main unit five and breaker mechanism keeping parallelism, and can make interlock around circuit breaker rotation axis 7 clockwise or rotate counterclockwise.After interlock 100 installs as shown in Figure 4.Now breaker mechanism is in closing position, and isolator operation hole 9 and earthed switch handle hole 12 are all blocked by interlock plate 10, handle cannot be inserted into line operate.But as shown in Figure 3 existing, under V-type is not installed when isolating the five-prevention interlocking device 100 of ring main unit under V-type, original five anti-interlock plates 13 only can block earthed switch handle hole 12, and misoperation, in opening-wide state, is easily caused in isolator operation hole 9.In Fig. 5, breaker mechanism is separating brake, at breaker mechanism from the process being incorporated into minute, circuit breaker rotation axis 7 in Fig. 2 can rotate counterclockwise certain angle, thereby under the V-type in drive Fig. 5, isolating the anti-interlock plate of ring main unit five rotates counterclockwise certain distance and reaches the position shown in Fig. 5, now, isolator operation, in opening-wide state, can be carried out in isolator operation hole 9.Thereby realize the step of opening the door, first separate circuit breaker, then separate isolating switch, the earthed switch that then closes can be opened lower door-plate.Fully ensured the fail safe of operation.
So install additional after isolating the anti-interlock plate of ring main unit five under V-type and can effectively prevent misoperation, isolate looped network cabinet-type air conditioner structure under protection V-type and be not damaged, protection operating personnel's personal safety.
Basic principle of the present utility model is: make the five anti-interlock plates (304 steel plates of thick 2mm are used in suggestion) that are shaped as spill, be contained on the rotation axis of breaker mechanism, utilize the rotation of rotation axis, drive five anti-interlock plate motions, it is reached and when breaker closing position, block isolator operation hole, when breaker open operation position, depart from isolator operation hole, thereby prevent a minute circuit breaker, the accident of dividing by force isolating switch.
The syndeton that is not limited to above-described embodiment for isolating the five-prevention interlocking device of ring main unit under V-type of the present utility model, can carry out multiple modification, in a word, all improvement within not departing from the utility model spirit scope all fall in scope of the present utility model.
Claims (3)
1. one kind for isolating the five-prevention interlocking device of ring main unit under V-type, it is characterized in that, comprise location hole, rotating shaft draw-in groove and interlock plate, described location hole and rotating shaft draw-in groove are all arranged on interlock plate, and described location hole is rounded, described rotating shaft draw-in groove is arranged on the rotation axis of breaker mechanism, and described interlock plate rotates by the described rotating shaft draw-in groove moving axis that rotates.
As described in claim 1 for isolating the five-prevention interlocking device of ring main unit under V-type, it is characterized in that, described location hole is arranged on the upper end of described interlock plate, described rotating shaft draw-in groove is arranged on the lower position of described location hole.
As described in claim 1 for isolating the five-prevention interlocking device of ring main unit under V-type, it is characterized in that, describedly for isolating the five-prevention interlocking device of ring main unit under V-type, be on the whole spill.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320565143.8U CN203491147U (en) | 2013-09-12 | 2013-09-12 | Five-prevention interlocking device used for V-type lower isolation ring main unit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320565143.8U CN203491147U (en) | 2013-09-12 | 2013-09-12 | Five-prevention interlocking device used for V-type lower isolation ring main unit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203491147U true CN203491147U (en) | 2014-03-19 |
Family
ID=50261958
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320565143.8U Expired - Fee Related CN203491147U (en) | 2013-09-12 | 2013-09-12 | Five-prevention interlocking device used for V-type lower isolation ring main unit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203491147U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107731591A (en) * | 2017-11-24 | 2018-02-23 | 彭显刚 | A kind of ring main unit five-prevention interlocking device |
-
2013
- 2013-09-12 CN CN201320565143.8U patent/CN203491147U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107731591A (en) * | 2017-11-24 | 2018-02-23 | 彭显刚 | A kind of ring main unit five-prevention interlocking device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140319 Termination date: 20210912 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |