CN203910638U - Spring push rod for high-voltage circuit breaker - Google Patents
Spring push rod for high-voltage circuit breaker Download PDFInfo
- Publication number
- CN203910638U CN203910638U CN201420021415.2U CN201420021415U CN203910638U CN 203910638 U CN203910638 U CN 203910638U CN 201420021415 U CN201420021415 U CN 201420021415U CN 203910638 U CN203910638 U CN 203910638U
- Authority
- CN
- China
- Prior art keywords
- push rod
- rod body
- threaded post
- connecting portion
- diameter
- 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 spring push rod for a high-voltage circuit breaker, and the push rod comprises a push rod body and a threaded column disposed at one end of the push rod body. The push rod body and the threaded column are both cylindrical. The diameter of the threaded column is less than the diameter of the push rod body. The threaded column is fixedly connected with the push rod body. The push rod body is provided with a chute. One end, facing the push rod body, of the threaded column is provided with a connecting part. The connecting part is shaped like a circular truncated cone. The diameter of one end, opposite to the threaded column, of the connecting part is equal to the diameter of the threaded column. The diameter of one end, opposite to the push rod body, of the connecting part is equal to the diameter of the push rod body. The push rod provided by the utility model is long in service life, and the threaded column disposed at one end of the push rod body is not liable to fall from the push rod body.
Description
Technical field
The utility model relates to a kind of primary cut-out assembly, relates in particular a kind of spring spindle of primary cut-out.
Background technology
Primary cut-out (or claim high-voltage switch gear) it not only can cut off or closed high circuit in no-load current and load current; and in the time that system breaks down by the effect of relay protection; cut off overload electric current and short circuit current; it has quite perfect arc extinguishing structure and enough cutout abilities, very powerful of its function.
The operating mechanism that the primary cut-out that had in the market uses is all to use spring operating mechanism, so spring spindle occupies very consequence in primary cut-out, current existing spring spindle is all the threaded post that is provided with fixing use in one end of push rod body, the angle of threaded post and push rod body is 90 degree, and the effect that will produce push rod, the diameter of threaded post must be less than the diameter of push rod body, but this structure easily occurs that threaded post splits away off from body in the process using, make spring spindle cannot continue to use, reduce the useful life of spring spindle.
Utility model content
The deficiency existing for prior art, the purpose of this utility model is to provide a kind of threaded post to be not easy to split away off from body, the spring spindle of long service life.
For achieving the above object, the utility model provides following technical scheme: a kind of spring spindle of primary cut-out, comprise push rod body and the threaded post that is located at push rod body one end, described push rod body and threaded post are cylindric, described threaded post diameter is less than push rod body diameter, described threaded post is fixedly connected with push rod body, described push rod body is provided with chute, described threaded post is provided with connecting portion towards push rod body one end, described connecting portion is fixedly connected with push rod body, described connecting portion is round table-like, diameter of the relative threaded post of described connecting portion equates with threaded post, diameter of the relative push rod body of described connecting portion equates with push rod body.
By adopting technique scheme, because threaded post is provided with connecting portion towards push rod body one end, connecting portion is fixedly connected with push rod body, connecting portion is round table-like, round table-like setting, just can increase the size that connecting portion can bear the next power of side surface direction, can also increase the pulling force of whole spring spindle, connecting portion diameter of section is greater than threaded post diameter, connecting portion diameter of section is less than the diameter of push rod body, connecting portion diameter is between threaded post diameter and push rod body diameter, and connecting portion is round table-like, diameter of the relative threaded post of connecting portion equates with threaded post, diameter of the relative push rod body of connecting portion equates with push rod body, connecting portion and threaded post and the complete laminating of push rod body like this, what make to be connected between connecting portion and threaded post and push rod body is more firm, further increase the fastness being connected between threaded post and push rod body, increase the useful life of spring spindle.
The utility model is further set to: described connecting portion side is concave surface.
By adopting technique scheme, the setting of concave surface has not only increased the power that connecting portion side can bear, and when push rod uses, can produce to push rod body the effect of a buffering, prevents that the end face of push rod body is out of shape because clash into.
The utility model is further set to: described threaded post and push rod body are wholely set.
By adopting technique scheme, specialty just can be moulded just passablely making in the process of spring spindle direct one, is wholely set the fastness of connecting portion also than connecting far better by other modes simultaneously.
The utility model is further set to: described push rod body is provided with screwed hole in threaded post one end dorsad.
By adopting technique scheme, because spring spindle is arranged on primary cut-out inside, so can be subject to the restriction of station in the process of installing, make to install difficulty, and the setting of screwed hole just can be crept into erecting tools screwed hole, after completing the installation of spring spindle, erecting tools is screwed out to screwed hole, greatly facilitate the installation to spring spindle.
Brief description of the drawings
Fig. 1 is the overall structure figure of the spring spindle of primary cut-out of the present utility model;
Fig. 2 is the enlarged drawing of a-quadrant in Fig. 1;
Fig. 3 is the enlarged drawing in B region in Fig. 1.
In figure: 1, push rod body; 2, threaded post; 11, chute; 21, connecting portion; 12, screwed hole.
Embodiment
Shown in Fig. 3, the spring spindle of a kind of primary cut-out of the present embodiment, comprise push rod body 1 and the threaded post 2 that is located at push rod body 1 one end, described push rod body 1 and threaded post 2 are cylindric, described threaded post 2 diameters are less than push rod body 1 diameter, described threaded post 2 is fixedly connected with push rod body 1, described push rod body 1 is provided with chute 11, described threaded post 2 is provided with connecting portion 21 towards push rod body 1 one end, described connecting portion 21 is fixedly connected with push rod body 1, described connecting portion 21 is round table-like, 2 one diameters of the relative threaded post of described connecting portion 21 equate with threaded post 2, 1 one diameters of the relative push rod body of described connecting portion 21 equate with push rod body 1.
By adopting technique scheme, because threaded post 2 is provided with connecting portion 21 towards push rod body 1 one end, connecting portion 21 is fixedly connected with push rod body 1, connecting portion 21 is round table-like, round table-like setting, just can increase the size that connecting portion 21 can bear the next power of side surface direction, can also increase the pulling force of whole spring spindle, connecting portion 21 diameter of sections are greater than threaded post 2 diameters, connecting portion 21 diameter of sections are less than the diameter of push rod body 1, connecting portion 21 diameter are between threaded post 2 diameters and push rod body 1 diameter, and connecting portion 21 is round table-like, 2 one diameters of the relative threaded post of connecting portion 21 equate with threaded post 2, 1 one diameters of the relative push rod body of connecting portion 21 equate with push rod body 1, connecting portion 21 and threaded post 2 and the complete laminating of push rod body 1 like this, make to be connected between connecting portion 21 and threaded post 2 and push rod body 1 more firm, further increase the fastness being connected between threaded post 2 and push rod body 1, increase the useful life of spring spindle.
Described connecting portion 21 sides are concave surface.
By adopting technique scheme, the setting of concave surface has not only increased the power that connecting portion 21 sides can bear, and the effect that can produce to push rod body 1 buffering when push rod uses, prevents that the end face of push rod body 1 is out of shape because clash into.
Described threaded post 2 is wholely set with push rod body 1.
By adopting technique scheme, specialty just can be moulded just passablely making in the process of spring spindle direct one, is wholely set the fastness of connecting portion 21 also than connecting far better by other modes simultaneously.
Described push rod body 1 is provided with screwed hole 12 in threaded post 2 one end dorsad.
By adopting technique scheme, because spring spindle is arranged on primary cut-out inside, so can be subject to the restriction of station in the process of installing, make to install difficulty, and the setting of screwed hole 12 just can be crept into erecting tools screwed hole 12, after completing the installation of spring spindle, erecting tools is screwed out to screwed hole 12, greatly facilitate the installation to spring spindle.
The utlity model has following advantage: long service life, the threaded post 2 that is arranged on push rod body 1 one end is not easy to split away off from push rod body 1, because threaded post 2 is provided with connecting portion 21 towards push rod body 1 one end, connecting portion 21 is fixedly connected with push rod body 1, connecting portion 21 is round table-like, round table-like setting, just can increase the size that connecting portion 21 can bear the next power of side surface direction, can also increase the pulling force of whole spring spindle, connecting portion 21 diameter of sections are greater than threaded post 2 diameters, connecting portion 21 diameter of sections are less than the diameter of push rod body 1, connecting portion 21 diameter are between threaded post 2 diameters and push rod body 1 diameter, and connecting portion 21 is round table-like, 2 one diameters of the relative threaded post of connecting portion 21 equate with threaded post 2, 1 one diameters of the relative push rod body of connecting portion 21 equate with push rod body 1, connecting portion 21 and threaded post 2 and the complete laminating of push rod body 1 like this, make to be connected between connecting portion 21 and threaded post 2 and push rod body 1 more firm, further increase the fastness being connected between threaded post 2 and push rod body 1, increase the useful life of spring spindle.
The above is only preferred implementation of the present utility model, and protection range of the present utility model is also not only confined to above-described embodiment, and all technical schemes belonging under the utility model thinking all belong to protection range of the present utility model.It should be pointed out that for those skilled in the art, in the some improvements and modifications that do not depart under the utility model principle prerequisite, these improvements and modifications also should be considered as protection range of the present utility model.
Claims (4)
1. the spring spindle of a primary cut-out, comprise push rod body and the threaded post that is located at push rod body one end, described push rod body and threaded post are cylindric, described threaded post diameter is less than push rod body diameter, described threaded post is fixedly connected with push rod body, described push rod body is provided with chute, it is characterized in that: described threaded post is provided with connecting portion towards push rod body one end, described connecting portion is round table-like, the relative threaded post of described connecting portion one end diameter equates with threaded post, and the relative push rod body of described connecting portion one end diameter equates with push rod body.
2. the spring spindle of primary cut-out according to claim 1, is characterized in that: described connecting portion side is concave surface.
3. the spring spindle of primary cut-out according to claim 2, is characterized in that: described threaded post and push rod body are wholely set.
4. according to the spring spindle of the primary cut-out described in claim 1 or 2 or 3, it is characterized in that: described push rod body is provided with screwed hole in threaded post one end dorsad.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420021415.2U CN203910638U (en) | 2014-01-14 | 2014-01-14 | Spring push rod for high-voltage circuit breaker |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420021415.2U CN203910638U (en) | 2014-01-14 | 2014-01-14 | Spring push rod for high-voltage circuit breaker |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203910638U true CN203910638U (en) | 2014-10-29 |
Family
ID=51784893
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420021415.2U Expired - Fee Related CN203910638U (en) | 2014-01-14 | 2014-01-14 | Spring push rod for high-voltage circuit breaker |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203910638U (en) |
-
2014
- 2014-01-14 CN CN201420021415.2U patent/CN203910638U/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: 20141029 Termination date: 20170114 |