CN204558328U - A kind of durable circuit breaker - Google Patents
A kind of durable circuit breaker Download PDFInfo
- Publication number
- CN204558328U CN204558328U CN201520230098.XU CN201520230098U CN204558328U CN 204558328 U CN204558328 U CN 204558328U CN 201520230098 U CN201520230098 U CN 201520230098U CN 204558328 U CN204558328 U CN 204558328U
- Authority
- CN
- China
- Prior art keywords
- installing hole
- contact
- contact knife
- distance
- knife
- 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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- Arc-Extinguishing Devices That Are Switches (AREA)
Abstract
The utility model relates to technical field of electric appliances, title is a kind of durable circuit breaker, comprise breaker body, breaker body comprises contact knife and fixed contact, contact knife has installing hole, breaker body has base, base there is the rotating shaft of installing contact knife, contact knife is arranged in rotating shaft through installing hole, the installing hole of described contact knife is multiple, each installing hole is greater than the distance of rotating shaft to fixed contact to the distance of contact knife free end, and the distance of adjacent installing hole is equal to and greater than the width of fixed contact, and so durable circuit breaker has advantage durable in use, to reduce use cost; The distance of adjacent installing hole is equal to and greater than the width of fixed contact, still normally uses when can ensure that contact knife weares and teares.
Description
Technical field
The utility model relates to technical field of electric appliances, specifically relates to circuit breaker.
Background technology
Circuit breaker comprises breaker body, and breaker body has contact knife and fixed contact, and the long-time part using contact knife to contact with fixed contact can be thinning, affects the normal use of circuit breaker, changes these contact knifes and has the shortcoming increasing cost.
Summary of the invention
The purpose of this utility model is exactly for above-mentioned shortcoming, provides a kind of durable circuit breaker changed conveniently, reduce costs.
The technical solution of the utility model is achieved in that a kind of durable circuit breaker, comprise breaker body, breaker body comprises contact knife and fixed contact, contact knife has installing hole, breaker body has base, and base has the rotating shaft of installing contact knife, contact knife is arranged in rotating shaft through installing hole, it is characterized in that: the installing hole of described contact knife is multiple, each installing hole is greater than the distance of rotating shaft to fixed contact to the distance of contact knife free end.
Say further, the distance of adjacent installing hole is equal to and greater than the width of fixed contact.
The beneficial effects of the utility model are: so durable circuit breaker has advantage durable in use, to reduce use cost; The distance of adjacent installing hole is equal to and greater than the width of fixed contact, still normally uses when can ensure that contact knife weares and teares.
Accompanying drawing explanation
Fig. 1 is cross-sectional view of the present utility model.
Wherein: 1, breaker body 2, contact knife 3, fixed contact 4, installing hole 5, base 6, contact knife free end.
Embodiment
Below in conjunction with accompanying drawing, the utility model will be further described.
As shown in Figure 1, a kind of durable circuit breaker, comprise breaker body 1, breaker body comprises contact knife 2 and fixed contact 3, and contact knife has installing hole 4, and breaker body has base 5, base there is the rotating shaft of installing contact knife, contact knife is arranged in rotating shaft through installing hole, it is characterized in that: the installing hole of described contact knife is multiple, and each installing hole is greater than the distance of rotating shaft to fixed contact to the distance of contact knife free end 6.
After the utility model uses a period of time, the part that contact knife contacts with fixed contact can be damaged, and at this moment can change at the position of rotating shaft and use different installing holes, thus change the position of the different contact fixed contact of contact knife, have advantage of the present utility model.
Each installing hole is greater than the distance of rotating shaft to fixed contact to the distance of contact knife free end, ensure that and can normally use after changing installing hole.
Say further, the distance of each installing hole is equal to and greater than the width of fixed contact, ensures that contact knife contact portion is intact during so each replacing, and when continuing to use, circuit breaker is respond well.
The foregoing is only specific embodiment of the utility model, but architectural feature of the present utility model is not limited to this, any those skilled in the art is in field of the present utility model, and the change done or modification are all encompassed in the scope of the claims of the present utility model.
Claims (1)
1. a durable circuit breaker, comprise breaker body, breaker body comprises contact knife and fixed contact, contact knife has installing hole, breaker body has base, and base has the rotating shaft of installing contact knife, contact knife is arranged in rotating shaft through installing hole, it is characterized in that: the installing hole of described contact knife is multiple, each installing hole is greater than the distance of rotating shaft to fixed contact to the distance of contact knife free end.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520230098.XU CN204558328U (en) | 2015-04-17 | 2015-04-17 | A kind of durable circuit breaker |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520230098.XU CN204558328U (en) | 2015-04-17 | 2015-04-17 | A kind of durable circuit breaker |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204558328U true CN204558328U (en) | 2015-08-12 |
Family
ID=53833411
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520230098.XU Expired - Fee Related CN204558328U (en) | 2015-04-17 | 2015-04-17 | A kind of durable circuit breaker |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204558328U (en) |
-
2015
- 2015-04-17 CN CN201520230098.XU patent/CN204558328U/en not_active Expired - Fee Related
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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: 20150812 Termination date: 20160417 |