CN202695356U - Moving contact connecting device of breaker - Google Patents
Moving contact connecting device of breaker Download PDFInfo
- Publication number
- CN202695356U CN202695356U CN 201220370318 CN201220370318U CN202695356U CN 202695356 U CN202695356 U CN 202695356U CN 201220370318 CN201220370318 CN 201220370318 CN 201220370318 U CN201220370318 U CN 201220370318U CN 202695356 U CN202695356 U CN 202695356U
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- moving contact
- actor
- rendering
- rotating shaft
- bearing pin
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Abstract
The utility model relates to a breaker, and relates in particular to a moving contact connecting device in the breaker. The utility model uses the following technical scheme that the moving contact connecting device in the breaker comprises a rotating shaft, a pin roll, a moving contact and a reset spring, a cavity for the moving contact to install is provided on the rotating shaft, long grooves with gaps are provided on side walls of the cavity, the moving contact is placed on the cavity through the pin roll, two ends of the pin roll are respectively placed in the two long grooves of the cavity, the reset spring is sleeved onto the pin roll, one side of the reset spring is stressed to abut against the moving contact, the moving contact connecting device in the breaker is characterized in that a cross rod is provided on the rotating shaft, and an end portion of the other side of the reset spring is set to be a hook, and is hooked on the cross rod. With the above scheme, the problems existing in the prior art are overcome, and the novel moving contact connecting device in the breaker which has a more reliable action and higher security is provided.
Description
Technical field
The utility model relates to a kind of circuit breaker, refers to especially the moving contact jockey in the circuit breaker.
Background technology
The moving contact jockey of existing circuit breaker; include rotating shaft; moving contact; bearing pin and back-moving spring; moving contact cooperates with bearing pin and installs in the rotating shaft; back-moving spring cooperates with moving contact provides moving contact pressure; and effectively cooperate with rotating shaft; when protective circuit has excessive short circuit current to occur; be contained in the moving contact in the rotating shaft; thereby will scold out and make moving contact advance mechanism action power dump owing to the pressure that electrodynamic repulsion force makes moving contact overcome back-moving spring; thereby play effective protective effect; but the problem that this structure exists is; owing to except compressing elastic force, there is not the power of fixedly tractive each other between back-moving spring and the rotating shaft; so cause easily bearing pin from rotating shaft, to drop out, affect the use of product.
Summary of the invention
The utility model overcomes the problem that prior art exists, and provides a kind of action more reliable, the moving contact jockey in the stronger novel circuit breaker of fail safe.
In order to realize above purpose, the utility model adopts following technical scheme, a kind of moving contact jockey of circuit breaker, include rotating shaft, bearing pin, moving contact and back-moving spring, be provided with an actor's rendering of an operatic tune of installing for moving contact on its shaft, be provided with notched elongated slot on the two side of described an actor's rendering of an operatic tune, moving contact places on an actor's rendering of an operatic tune by bearing pin, and the two ends of bearing pin place respectively in two elongated slots of an actor's rendering of an operatic tune, described back-moving spring is located on the bearing pin stressed conflict on one side on moving contact, it is characterized in that: be provided with cross bar in the described rotating shaft, back-moving spring another side end is arranged to hook-shaped hook and is located on the cross bar.
Further setting of the present utility model is: described back-moving spring is symmetrical structure, back-moving spring includes two elastic rings, connect by transverse arm between two elastic rings, be extended with respectively on two elastic rings and compress bar, the balance or cancel each other end of depression bar all is bent into hook-shapedly, and the crook hook of the depression bar that balances or cancel each other is located on the cross bar of rotating shaft, is provided with draw-in groove on the described moving contact, the transverse arm of back-moving spring places in the draw-in groove, and described two elastic rings are set on the bearing pin; Described cross bar is arranged on an actor's rendering of an operatic tune of rotating shaft, is provided with step in described an actor's rendering of an operatic tune between cross bar and bearing pin, and back-moving spring is positioned at hook-shaped one side and arranges with the step conflict; Described cross bar is arranged on an actor's rendering of an operatic tune of rotating shaft, is provided with step in described an actor's rendering of an operatic tune between cross bar and bearing pin, and the bar that compresses that extends on two elastic rings all is folded to form a folding shape of conflicting with step.
Adopt such scheme, the beneficial effects of the utility model are: hook-shaped by being provided with on the back-moving spring, be provided with cross bar in the rotating shaft, realize the cooperating of hook-shaped and cross bar fixing between back-moving spring and the rotating shaft, be set on the bearing pin owing to back-moving spring again, thereby guarantee fixing between bearing pin and the rotating shaft, make this mechanism action more reliable, fail safe is stronger; In addition, be provided with step between cross bar and the bearing pin, the hook-shaped limit of back-moving spring cooperates with the cross bar snap fit by after cooperating with step, is not subjected to the impact of moving contact activity between the hook-shaped limit of so further assurance back-moving spring and the cross bar, connects more reliable.
Below in conjunction with accompanying drawing the utility model is further described.
Description of drawings
Fig. 1 is structural representation Fig. 1 of the utility model embodiment;
Fig. 2 is structural representation Fig. 2 of the utility model embodiment;
Fig. 3 is structural representation Fig. 3 of the utility model embodiment;
Fig. 4 is the structural representation that the utility model embodiment lacks back-moving spring;
Fig. 5 is the offsetting spring structure schematic diagram of the utility model embodiment.
Embodiment
Such as Fig. 1-shown in Figure 5, a kind of moving contact jockey of circuit breaker, include rotating shaft 1, bearing pin 2, moving contact 3 and back-moving spring 4, be provided with an actor's rendering of an operatic tune 11 of installing for moving contact on its shaft 1, be provided with notched elongated slot 111 on the two side of described an actor's rendering of an operatic tune 11, moving contact 3 places on an actor's rendering of an operatic tune 11 by bearing pin 2, and the two ends of bearing pin 2 place respectively in two elongated slots 111 of an actor's rendering of an operatic tune 11, described back-moving spring 4 is located on the bearing pin 2 stressed conflict on one side on moving contact 3, in the present embodiment, be provided with cross bar 12 in the described rotating shaft 1, back-moving spring 4 another side ends are arranged to hook-shaped 441 hooks and are located on the cross bar 12, hook-shaped 31 with realize fixing between back-moving spring 4 and the rotating shaft 1 cooperating of cross bar 12, be set on the bearing pin 2 owing to back-moving spring 4 again, thereby guarantee fixing between bearing pin 2 and the rotating shaft 1, make this mechanism action more reliable, fail safe is stronger.
In the utility model embodiment, described back-moving spring 4 is symmetrical structure, back-moving spring 4 includes two elastic rings 42, connect by transverse arm 43 between two elastic rings 42, be extended with respectively on two elastic rings 42 and compress bar 44, the end of the depression bar 44 that balances or cancel each other all is bent into hook-shaped 441, crook 441 hooks of depression bar 44 of balancing or cancel each other are located on the cross bar 12 of rotating shaft 1, be provided with draw-in groove 31 on the described moving contact 3, the transverse arm 43 of back-moving spring 3 places in the draw-in groove 31, and described two elastic rings 42 are set on the bearing pin 2; In the utility model embodiment, described cross bar 12 is arranged on an actor's rendering of an operatic tune 11 of rotating shaft 1, between cross bar 12 and bearing pin 2, be provided with step 112 in described an actor's rendering of an operatic tune 11, the bar 44 that compresses that extends on two elastic rings 42 all is folded to form a folding shape 442 of conflicting with step 112, after compressing the folding shape and step 112 conflicts of bar 44, establish with cross bar 12 hooks its end hook-shaped 441, is not subjected to the impact of moving contact activity between the hook-shaped limit of so further assurance back-moving spring and the cross bar, connects more reliable; Certainly also can not establish step 112 in the present embodiment, compress rear its end hook-shaped 441 of bar 44 straight lines extension and establish with cross bar 12 hooks.
Claims (4)
1. the moving contact jockey of a circuit breaker, include rotating shaft, bearing pin, moving contact and back-moving spring, be provided with an actor's rendering of an operatic tune of installing for moving contact on its shaft, be provided with notched elongated slot on the two side of described an actor's rendering of an operatic tune, moving contact places on an actor's rendering of an operatic tune by bearing pin, and the two ends of bearing pin place respectively in two elongated slots of an actor's rendering of an operatic tune, described back-moving spring is located on the bearing pin stressed conflict on one side on moving contact, it is characterized in that: be provided with cross bar in the described rotating shaft, back-moving spring another side end is arranged to hook-shaped hook and is located on the cross bar.
2. the moving contact jockey of circuit breaker according to claim 1, it is characterized in that: described back-moving spring is symmetrical structure, back-moving spring includes two elastic rings, connect by transverse arm between two elastic rings, be extended with respectively on two elastic rings and compress bar, the end of the depression bar that balances or cancel each other all is bent into hook-shaped, the crook hook of depression bar of balancing or cancel each other is located on the cross bar of rotating shaft, be provided with draw-in groove on the described moving contact, the transverse arm of back-moving spring places in the draw-in groove, and described two elastic rings are set on the bearing pin.
3. the moving contact jockey of circuit breaker according to claim 1, it is characterized in that: described cross bar is arranged on an actor's rendering of an operatic tune of rotating shaft, is provided with step in described an actor's rendering of an operatic tune between cross bar and bearing pin, and back-moving spring is positioned at hook-shaped one side and step and conflicts and arrange.
4. the moving contact jockey of circuit breaker according to claim 2, it is characterized in that: described cross bar is arranged on an actor's rendering of an operatic tune of rotating shaft, be provided with step in described an actor's rendering of an operatic tune between cross bar and bearing pin, the bar that compresses that extends on two elastic rings all is folded to form a folding shape of conflicting with step.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220370318 CN202695356U (en) | 2012-07-27 | 2012-07-27 | Moving contact connecting device of breaker |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220370318 CN202695356U (en) | 2012-07-27 | 2012-07-27 | Moving contact connecting device of breaker |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202695356U true CN202695356U (en) | 2013-01-23 |
Family
ID=47550935
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220370318 Expired - Lifetime CN202695356U (en) | 2012-07-27 | 2012-07-27 | Moving contact connecting device of breaker |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202695356U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107026030A (en) * | 2016-02-02 | 2017-08-08 | 三信国际电器上海有限公司 | A kind of contact system of residual current action breaker |
-
2012
- 2012-07-27 CN CN 201220370318 patent/CN202695356U/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107026030A (en) * | 2016-02-02 | 2017-08-08 | 三信国际电器上海有限公司 | A kind of contact system of residual current action breaker |
| CN107026030B (en) * | 2016-02-02 | 2019-04-16 | 三信国际电器上海有限公司 | A kind of contact system of residual current action breaker |
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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 | ||
| CX01 | Expiry of patent term |
Granted publication date: 20130123 |