CN204651233U - A kind of misoperation prevention isolating switch - Google Patents
A kind of misoperation prevention isolating switch Download PDFInfo
- Publication number
- CN204651233U CN204651233U CN201520432342.0U CN201520432342U CN204651233U CN 204651233 U CN204651233 U CN 204651233U CN 201520432342 U CN201520432342 U CN 201520432342U CN 204651233 U CN204651233 U CN 204651233U
- Authority
- CN
- China
- Prior art keywords
- switch
- operating grip
- isolating switch
- binding post
- link rod
- 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 discloses a kind of misoperation prevention isolating switch, solve existing isolating switch without the problem preventing misoperation.This misoperation prevention isolating switch comprises switch installation board (1), be arranged on the three pole knife switches (2) for disjunction threephase load on described switch installation board (1), outlet binding post (3) and inlet wire binding post (4), described outlet binding post (3) place is provided with the current transformer (5) for detecting line end load, perform the current switch (6) of corresponding actions according to described current transformer (5) output current size, be connected with described current switch (6) and form the indicator light (7) in loop.The utility model structure is simple, realization is convenient.
Description
Technical field
The utility model relates to a kind of isolating switch, specifically, relates to a kind of misoperation prevention isolating switch.
Background technology
Isolating switch, custom becomes " disconnecting link ", namely when dividing position, having the insulation distance of the requirement that conforms with the regulations and significantly disconnect mark between contact; When co-bit is put, the switchgear of electric current under normal loop condition and the electric current at the appointed time under exceptional condition (such as short circuit) can be carried.To isolating switch (knife switch) operation requirements inside electrician's operational procedure: forbid on-load to be operated a switch.At present, isolating switch on the market does not prevent the function of misoperation, and the strick precaution for this respect is mainly leaned on the safety management of company and operated operating experience and the consciousness of electrician.But in the actual production of factory, due to the impact of operator quality and the state of mind, there is the case that on-load is operated a switch, because isolating switch does not have arc extinguishing ability, therefore great personnel may be caused to injure or device damage.
Utility model content
The purpose of this utility model is to overcome above-mentioned defect, provide a kind of structure simple, realize misoperation prevention isolating switch easily.
To achieve these goals, the technical solution adopted in the utility model is as follows:
A kind of misoperation prevention isolating switch, comprise switch installation board, be arranged on the three pole knife switches for disjunction threephase load on described switch installation board, outlet binding post and inlet wire binding post, described outlet binding post place is provided with the current transformer for detecting line end load, be connected with described current transformer and perform the current switch of corresponding actions according to described current transformer output current size, be connected with described current switch and form the indicator light in loop.
Further, described three pole knife switches include operating grip and base, described base offers jack, described operating grip is provided with movable plug, when three pole knife switches are in off-state, described movable plug inserts in described jack and opens to prevent described three pole knife switches from being missed behaviour.
Further, described operating grip inside is provided with movable link rod, described movable link rod upper end is provided with inserts arc convex portion in described jack for having promoted described movable plug, it is outside that described movable link rod lower end extends to described operating grip, also postive stop baffle is provided with in the middle part of described movable link rod, when described postive stop baffle props up described operating grip bottom, described arc convex portion pushes down described movable plug and prevents movable plug return.
Compared with prior art, the utility model has following beneficial effect:
(1) the utility model detects the load occurring end by current transformer, measure through current transformer, output to current switch, the mode of indicator light is adopted to remind operating personnel not want misoperation, by reducing certain misoperation probability, give effective guarantee to the life of equipment and operating personnel.
(2) the utility model is under isolating switch off-state, and by locking of operating grip and base, having stopped the electric equipment that controls because of misoperation arbitrarily starts, thus prevents electric equipment to start in unsafe situation, causes security incident
(3) the utility model structure is simple, realization is convenient, with low cost, active defense and passive protection is organically combined as a whole, drastically increases fool proof effect, for it is applied on a large scale, established solid foundation.
Accompanying drawing explanation
Fig. 1 is the structural representation of the utility model-embodiment 1.
Fig. 2 is the circuit diagram of the pilot lamp loop of the utility model-embodiment 1.
Fig. 3 is the partial schematic diagram of the utility model-embodiment 2.
In above-mentioned accompanying drawing, the component names that Reference numeral is corresponding is as follows: 1-switch installation board, 2-tri-pole knife switch, 3-outlet binding post, 4-inlet wire binding post, 5-current transformer, 6-current switch, 7-indicator light, 21-operating grip, 22-base, 211-movable plug, the movable link rod of 212-, 213-arc convex portion, 214-postive stop baffle, 221-jack.
Embodiment
Below in conjunction with drawings and Examples, the utility model is described in further detail, and execution mode of the present utility model includes but not limited to the following example.
embodiment 1
As shown in Figure 1, 2, present embodiments provide a kind of misoperation prevention isolating switch, comprise switch installation board 1, be arranged on three pole knife switches 2, outlet binding post 3 and inlet wire binding post 4 for disjunction threephase load on switch installation board 1.Load end may only have the situation of single-phase load, but now electric current is less, is not enough to form too large danger during operation, and the utility model emphasis considers the situation of threephase load, therefore adopts three pole knife switches.
The mode that the present embodiment adopts indicator light to remind reminds operating personnel not want misoperation, therefore, the present embodiment has set up a pilot lamp loop, specifically, this pilot lamp loop is formed primarily of indicator light 7 and current switch 6, wherein, current switch controls by leading-out terminal load, the present embodiment is achieved through the following technical solutions: be provided with the current transformer 5 for detecting line end load at outlet binding post 3 place, current transformer is connected with current switch, when equipment leading-out terminal has the load of certain power time, measure through current transformer, output to current switch, when the set point of electric current lower than current switch, current switch is failure to actuate, when electric current is equal to or higher than the set point of current switch, current switch work, now pilot lamp loop conducting, indicator light is bright, forbids sub-switching operation.Preferably, redness selected by indicator light, using as warning function.When indicator light is bright time, remind operating personnel not operate, reduce the probability of misoperation thus.
embodiment 2
As shown in Figure 3, the difference of the present embodiment and embodiment 1 is, by mechanical caging operating grip, avoids the misoperation when isolating switch disconnects.Specifically, the present embodiment offers jack 221 on the base 22 of three pole knife switches, the operating grip 21 of three pole knife switches is provided with movable plug 211, when three pole knife switches 2 are in off-state, movable plug 211 inserts in jack 221, now operating grip cannot relatively rotate relative to base, prevents three pole knife switches from being missed behaviour thus and opens.Wherein, movable plug has recovery function, and after unlocking, movable plug automatic rebounding departs from jack, now, can free operant operating grip, realize the opening action of isolating switch.
In a kind of preferred version, operating grip 21 inside is provided with movable link rod 212, and movable link rod 212 upper end is provided with inserts arc convex portion 213 in jack 221 for having promoted movable plug 211, and it is outside that movable link rod 212 lower end extends to operating grip 21.When isolating switch is in closed condition, operating grip is beaten in off-position, now, movable plug is between arc convex portion and jack, pull the tail end of movable link rod, movable link rod drives the motion of arc convex portion, is then pressed in jack by arc convex portion by movable plug, realize locking, avoid operating personnel's misoperation.
Further, the present embodiment is also provided with postive stop baffle in the middle part of movable link rod, and postive stop baffle has two effects: one is prevent movable link rod from coming off from operating grip inside; Another effect is that arc convex portion pushes down movable plug and prevents movable plug return when postive stop baffle props up operating grip bottom.After unlocking, with the afterbody of hand propelled activity link rod, make arc convex portion depart from movable plug, movable plug self-return, depart from jack, wherein, the function of movable plug self-return realizes by return spring.
According to above-described embodiment, just the utility model can be realized well.What deserves to be explained is; under prerequisite based on above-mentioned design principle; for solving same technical problem; even if some making on architecture basics disclosed in the utility model are without substantial change or polishing; the essence of the technical scheme adopted is still the same with the utility model, therefore it also should in protection range of the present utility model.
Claims (3)
1. a misoperation prevention isolating switch, it is characterized in that, comprise switch installation board (1), be arranged on the three pole knife switches (2) for disjunction threephase load on described switch installation board (1), outlet binding post (3) and inlet wire binding post (4), described outlet binding post (3) place is provided with the current transformer (5) for detecting line end load, perform the current switch (6) of corresponding actions according to described current transformer (5) output current size, be connected with described current switch (6) and form the indicator light (7) in loop.
2. a kind of misoperation prevention isolating switch according to claim 1, it is characterized in that, described three pole knife switches (2) include operating grip (21) and base (22), described base (22) offers jack (221), described operating grip (21) is provided with can the movable plug (211) of self-return, when three pole knife switches (2) are in off-state, described movable plug (211) inserts in described jack (221) and opens to prevent described three pole knife switches from being missed behaviour.
3. a kind of misoperation prevention isolating switch according to claim 2, it is characterized in that, described operating grip (21) inside is provided with movable link rod (212), described movable link rod (212) upper end is provided with inserts arc convex portion (213) in described jack (221) for having promoted described movable plug (211), it is outside that described movable link rod (212) lower end extends to described operating grip (21), described movable link rod (212) middle part is provided with the postive stop baffle (214) preventing from coming off, when described postive stop baffle (214) props up described operating grip (21) bottom, described arc convex portion (213) is pushed down described movable plug (211) and is prevented movable plug return.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520432342.0U CN204651233U (en) | 2015-06-23 | 2015-06-23 | A kind of misoperation prevention isolating switch |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520432342.0U CN204651233U (en) | 2015-06-23 | 2015-06-23 | A kind of misoperation prevention isolating switch |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204651233U true CN204651233U (en) | 2015-09-16 |
Family
ID=54103950
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520432342.0U Expired - Fee Related CN204651233U (en) | 2015-06-23 | 2015-06-23 | A kind of misoperation prevention isolating switch |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204651233U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105957763A (en) * | 2016-06-30 | 2016-09-21 | 莱芜钢铁集团有限公司 | Knife switch and power supply line |
-
2015
- 2015-06-23 CN CN201520432342.0U patent/CN204651233U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105957763A (en) * | 2016-06-30 | 2016-09-21 | 莱芜钢铁集团有限公司 | Knife switch and power supply line |
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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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150916 Termination date: 20200623 |