CN202042438U - Guide rod structure for connecting breaker draw-out device to pre-breaker - Google Patents
Guide rod structure for connecting breaker draw-out device to pre-breaker Download PDFInfo
- Publication number
- CN202042438U CN202042438U CN2011201502844U CN201120150284U CN202042438U CN 202042438 U CN202042438 U CN 202042438U CN 2011201502844 U CN2011201502844 U CN 2011201502844U CN 201120150284 U CN201120150284 U CN 201120150284U CN 202042438 U CN202042438 U CN 202042438U
- Authority
- CN
- China
- Prior art keywords
- circuit breaker
- guide rod
- breaker
- withdrawing device
- 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 guide rod structure for connecting a draw-out device of a low voltage breaker to a pre-breaker. The guide rod structure is arranged in a slotted hole on a breaker pedestal and consists of a guide rod and a compression spring; the entire guide rod is integrally combined by a limiting rod and a pull rod; the limiting rod has a cylindrical structure; during mounting, the limiting rod and the compression spring are inserted into corresponding slots of the pedestal; a clamping port on the head part of the limiting part is clamped with the pedestal; the pull rod is also arranged in the slot of the pedestal; and a hook on the head part of the pull rod directly hooks a tripping plate of the low voltage breaker. The pull rod hooks the tripping plate, so that the tripping plate acts and then drives the breaker to be cut off. The guide rod structure has a simple structure and is convenient to mount and reliable in operation; error operation of the breaker because the breaker cannot be reliably contacted with the draw-out device can be avoided; and potential safety hazard is avoided.
Description
Technical field
The utility model relates to the external accessory of the mold cased circuit breaker in the low-voltage electrical apparatus field, relates in particular to the guide rod structure that the mold cased circuit breaker withdrawing device that is used for big electric current connects pre-outage usefulness.
Background technology
Circuit breaker is one of protection important in the low voltage electric network and control element, and its main task is the electric current of connecting under carrying and the separating brake normal circuit condition, protects electric equipment not to be damaged when short circuit.Therefore, circuit breaker also needs to finish reliable closed and disconnected operation except needing high short circuit breaking capacity and perfect protective feature.Mold cased circuit breaker is a kind of safe, reliable, economic low-voltage circuit breaker, has been widely used in each power industry.The withdrawing device of circuit breaker is as one of external accessory of circuit breaker, circuit breaker is being played certain quick effect aspect installing and using, but there is certain potential safety hazard in use in traditional withdrawing device, promptly when circuit breaker is installed if reliably do not contact with withdrawing device, and circuit breaker is when normally closing a floodgate, electric spark can be produced between the contact of withdrawing device and circuit breaker, circuit breaker can be burnt when serious.
The utility model content
Potential safety hazard at existing mold cased circuit breaker withdrawing device, the utility model provides a kind of circuit breaker withdrawing device simple in structure, easy for installation to connect pre-outage guide rod structure, to guarantee that mold cased circuit breaker contacts with the reliable of withdrawing device, guarantee safe action.
The technical solution of the utility model is as follows:
A kind of circuit breaker withdrawing device connects pre-outage and uses guide rod structure, comprises guide rod and stage clip, and described guide rod is made up of gag lever post and pull bar, and boss is arranged at the top of pull bar, and described stage clip is installed on the gag lever post.
Its further technical scheme is: described guide rod is installed in the slotted eye on the circuit breaker base, and described slotted eye is near the escape plate on the circuit breaker base, and in the time of in the slotted eye on guide rod is packed the circuit breaker base into, boss catches on the escape plate of circuit breaker.
And its further technical scheme is: described gag lever post is cylindrical.
Useful technique effect of the present utility model is:
The utility model blocks the circuit breaker base by the head bayonet socket of gag lever post, and the drag hook shape of rod head directly catches on the escape plate of low-voltage circuit breaker.Pull bar catches on the escape plate, makes the action of escape plate drive circuit breaker again and disconnects.Simple in structure, easy for installation, reliable, whether reliably contact with circuit breaker withdrawing device inwall by the guide rod bottom, and the projection of guide rod drives the escape plate, can prevent that circuit breaker from reliably not contacting with withdrawing device and cause the circuit breaker misoperation, stops potential safety hazard.
Description of drawings
Fig. 1 is a general assembly structure chart of the present utility model.
Fig. 2 is a guide rod part drawing of the present utility model.
Fig. 3 is a stage clip part drawing of the present utility model.
Fig. 4 is the utility model and the slotted eye that cooperates of circuit breaker base.
Fig. 5 is that the utility model is when being in first station and the mated condition figure of circuit breaker escape version.
Fig. 6 is that the utility model is when being in first station and the mated condition figure of circuit breaker base.
Fig. 7 is that the utility model is when being in second station and the mated condition figure of circuit breaker escape version.
Fig. 8 is that the utility model is in and during station and the mated condition figure of circuit breaker base.
Embodiment
Below in conjunction with accompanying drawing embodiment of the present utility model is described further.
As Fig. 1, Fig. 2, shown in Figure 3, the utility model is made up of guide rod 4 and stage clip 5, and wherein guide rod is the compound body of gag lever post 6 and pull bar 7.Pull bar 7 has boss 8 than long and its top.Gag lever post 6 is short in cylindrical, the big slightly formation bayonet socket of its head.Stage clip 5 is installed on the gag lever post 6.
As shown in Figure 4, the utility model is installed on the cylindrical ladder slotted eye 2 interior (see figure 4)s of breaker of plastic casing base 1, and this slotted eye 2 is close near the escape plate 3 of circuit breaker.
As Fig. 5 ~ shown in Figure 8, during installation guide rod 4 is inserted in the base 1 corresponding slotted eye 2 of circuit breaker, the head bayonet socket of gag lever post 6 stretched out the base 1 of circuit breaker and blocked the base plate of circuit breaker this moment, the base plate of circuit breaker base 1 is withstood at the top of stage clip 5, and gag lever post 6 just can only move up and down in the columniform ladder slotted eye 2 of base like this; Because gag lever post 6 is one with pull bar 7, so pull bar 7 also is enclosed in the slotted eye 2 simultaneously, stretch out from slotted eye 2 on the top of pull bar 7 simultaneously, and the drag hook shaped boss 8 of pull bar 7 heads directly catches on the escape plate 3 of circuit breaker, make escape plate 3 actions of circuit breaker, drive circuit breaker again and disconnect.
By such scheme, when circuit breaker reliably contacts with withdrawing device, when the escape plate 3 of guide rod 4 and circuit breaker just is in first station, makes circuit breaker can carry out divide-shut brake smoothly, and can not produce electric spark; When circuit breaker and withdrawing device are that released state or withdrawing device cannot not be abutted against and touch, when the escape plate 3 of guide rod 4 and circuit breaker just is in second station, make circuit breaker can't carry out homing action, inserting column on the assurance withdrawing device body and the binding post on the circuit breaker do not have electric current.
Below these two kinds of stations are described respectively:
As Fig. 5, shown in Figure 6, when circuit breaker reliably is installed on withdrawing device and circuit breaker when being in "on" position, along with separating of circuit breaker and withdrawing device, guide rod 4 moves downward under the effect of stage clip 5 immediately, the boss 8 of guide rod catches on escape plate 3 and realizes breaker open operation, and the separating brake of circuit breaker action has precedence over inserting column and the disconnection of the binding post on the circuit breaker on the withdrawing device body, has realized that finally circuit breaker when withdrawing device separates, can not produce electric spark.This moment, guide rod 4 of the present utility model was in first station with the escape plate 3 of circuit breaker.
As Fig. 7, shown in Figure 8, before circuit breaker base 1 and withdrawing device are not installed, effect lower guide rod 4 at stage clip 5 is stressed downward, the escape plate 3 of circuit breaker is caught at boss 8 positions of guide rod 4, so just stoped colluding of breaker mechanism to be closed, thereby circuit breaker can't close a floodgate, realized that circuit breaker is in gate-dividing state always before not installing with withdrawing device, when having guaranteed that circuit breaker and withdrawing device are pegged graft, inserting column on the withdrawing device body and the binding post on the circuit breaker do not have electric current to produce, and just can not produce the phenomenon of loose contact yet.This moment, guide rod 4 of the present utility model was in second station with the escape plate 3 of circuit breaker.
Comparison diagram 5, Fig. 7 as can be known, when guide rod 4 is in above-mentioned first, second station, the anglec of rotation difference of the escape plate 3 of circuit breaker.Comparison diagram 6, Fig. 8 are as can be known, when guide rod 4 is in above-mentioned first, second station, guide rod 4 stretches out the length difference of circuit breaker base 1: to stretch out the length of circuit breaker base slotted eye be 4.0mm to guide rod among Fig. 6, and to stretch out the length of circuit breaker base slotted eye be 0.5mm to guide rod among Fig. 8.
Above-described only is preferred implementation of the present utility model, and the utility model is not limited to above embodiment.Be appreciated that other improvement and variation that those skilled in the art directly derive or associate under the prerequisite that does not break away from spirit of the present utility model and design, all should think to be included within the protection range of the present utility model.
Claims (3)
1. a circuit breaker withdrawing device connects pre-outage guide rod structure, it is characterized in that: comprise guide rod (4) and stage clip (5), described guide rod (4) is made up of gag lever post (6) and pull bar (7), boss (8) is arranged at the top of pull bar (7), and described stage clip (5) is installed on the gag lever post (6).
2. connect pre-outage guide rod structure according to the described circuit breaker withdrawing device of claim 1, it is characterized in that: described guide rod (4) is installed in the slotted eye (2) on the circuit breaker base (1), described slotted eye (2) is near the escape plate (3) on the circuit breaker base (1), in the time of in the slotted eye (2) on guide rod (4) is packed circuit breaker base (1) into, boss (8) catches on the escape plate (3) of circuit breaker.
3. connect pre-outage according to the described circuit breaker withdrawing device of claim 1 and use guide rod structure, it is characterized in that: described gag lever post (6) is for cylindrical.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011201502844U CN202042438U (en) | 2011-05-12 | 2011-05-12 | Guide rod structure for connecting breaker draw-out device to pre-breaker |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011201502844U CN202042438U (en) | 2011-05-12 | 2011-05-12 | Guide rod structure for connecting breaker draw-out device to pre-breaker |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202042438U true CN202042438U (en) | 2011-11-16 |
Family
ID=44969874
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011201502844U Expired - Fee Related CN202042438U (en) | 2011-05-12 | 2011-05-12 | Guide rod structure for connecting breaker draw-out device to pre-breaker |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202042438U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102184810A (en) * | 2011-05-12 | 2011-09-14 | 台安科技(无锡)有限公司 | Guide rod structure for connection pre-outage of withdrawing device of circuit breaker |
-
2011
- 2011-05-12 CN CN2011201502844U patent/CN202042438U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102184810A (en) * | 2011-05-12 | 2011-09-14 | 台安科技(无锡)有限公司 | Guide rod structure for connection pre-outage of withdrawing device of circuit breaker |
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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: 20111116 Termination date: 20170512 |