CN202558395U - Coil spring tightening device - Google Patents
Coil spring tightening device Download PDFInfo
- Publication number
- CN202558395U CN202558395U CN2012200822040U CN201220082204U CN202558395U CN 202558395 U CN202558395 U CN 202558395U CN 2012200822040 U CN2012200822040 U CN 2012200822040U CN 201220082204 U CN201220082204 U CN 201220082204U CN 202558395 U CN202558395 U CN 202558395U
- Authority
- CN
- China
- Prior art keywords
- wind spring
- coil spring
- rotating shaft
- rivet
- aperture
- 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 coil spring tightening device, which comprises a coil spring and a rotating shaft, wherein the coil spring winds around the rotating shaft, a rivet is arranged on the rotating shaft, a rivet hole is formed on the inner end of the coil spring and formed by a small hole and a large hole communicated with the small hole, the distance between the center of the large hole and the inner end of the coil spring is larger than the distance between the center of the small hole and the inner end of the coil spring, and the center of the small hole is arranged on the center line of the coil spring. The coil spring tightening device is simple in structure, low in cost, free from the influence of the tightening degree of the coil spring, ensures the wire coiling effect of a wire coiling device and prolongs the service life of the wire coiling device.
Description
Technical field
The utility model relates to a kind of nest spring device, is specifically related to a kind of winder wind spring tightening device.
Background technology
Wind spring is called clockwork spring again, is the plane scroll spring of processing with spring steel band, can in narrow space, continue the restoring force that provides bigger, is used in transmission voltage in the winder, pressurized air, water, wet goods usually.
Because the wind spring in the existing winder can cause wind spring elastic force to reduce after repeated use, can cause like this and can't line be completely retracted in the winder, has brought inconvenience to the user.
Summary of the invention
To above-mentioned weak point, the utility model provides a kind of winder wind spring tightening device, solves the repeated use winder and causes wind spring elastic force to reduce, and can't line be completely retracted into the problem in the winder.
The concrete technical scheme of the utility model is: a kind of wind spring tightening device; Comprise wind spring and rotating shaft; Wind spring twisted rotary shaft, rotating shaft are provided with a rivet, and wind spring the inner has rivet hole; Rivet hole is made up of macropore that is connected and aperture, and the center of macropore is arrived the inner distance of wind spring to the inner distance of wind spring greater than the center of aperture.
Because so stressed maximum on the inner line of centers of wind spring is on the line of centers that is centered close to wind spring of aperture; When wind spring need tighten up, the rivet in the rotating shaft slipped into aperture by the macropore on the rivet hole, and aperture and rivet match, and wind spring and rotating shaft are held tightly, guaranteed the spiral effect of winder; In order better to realize that wind spring and rotating shaft hold tightly, make the center of macropore to the inner distance of wind spring greater than the center of aperture distance to wind spring the inner; The diameter of macropore can make rotating shaft dismantle easily greater than the diameter of aperture so simultaneously, and is easy to maintenance.
Adopt this structure, when the rotating shaft on the winder was rotated, the rivet in the rotating shaft slipped into aperture by the macropore on the rivet hole; Aperture and rivet match, and rivet just in time is stuck in aperture, and wind spring and rotating shaft are held tightly; Do not receive the influence of wind spring degree of tightness, guarantee the spiral effect of winder.
The utility model is simple in structure, and cost is low, does not receive the influence of wind spring degree of tightness, has guaranteed the spiral effect of winder, has prolonged the service life of winder.
Description of drawings
Fig. 1 is the structural representation of the utility model;
Fig. 2 is the structural representation of Fig. 1 shaft;
Fig. 3 is the birds-eye view of the utility model;
Fig. 4 is the left view of the utility model;
Fig. 5 is the inner structural representation of wind spring when wind spring launches among Fig. 1;
1 is wind spring among the figure, and 2 are rotating shaft, and 3 is rivet, and 4 is aperture, and 5 is macropore.
The specific embodiment
Present embodiment comprises wind spring 1 and rotating shaft 2; Wind spring 1 twisted rotary shaft 2; Rotating shaft 2 is provided with a rivet 3, and wind spring 1 the inner has rivet hole, and rivet hole is made up of macropore that is connected 5 and aperture 4; The center of macropore 5 to the inner distance of wind spring 1 greater than the center of aperture 4 to the inner distance of wind spring 1, on the line of centers that is centered close to wind spring 1 of aperture 4.
During use, when the rotating shaft on the winder 2 was rotated, the rivet 3 in the rotating shaft 2 slipped into aperture 4 by the macropore on the rivet hole 5; Aperture 4 matches with rivet 3, and rivet 3 just in time is stuck in aperture 4, and wind spring 1 and rotating shaft 2 are held tightly; Do not receive the influence of wind spring 1 degree of tightness, guarantee the spiral effect of winder.
Claims (3)
1. the wind spring tightening device comprises wind spring (1) and rotating shaft (2), it is characterized in that: wind spring (1) twisted rotary shaft (2), and rotating shaft (2) is provided with a rivet (3), and wind spring (1) the inner has rivet hole.
2. wind spring tightening device according to claim 1 is characterized in that: rivet hole is made up of aperture that is connected (4) and macropore (5), and the center of macropore (5) is arrived the inner distance of wind spring to the inner distance of wind spring greater than the center of aperture (4).
3. wind spring tightening device according to claim 1 and 2 is characterized in that: on the line of centers that is centered close to wind spring (1) of said aperture (4).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012200822040U CN202558395U (en) | 2012-03-07 | 2012-03-07 | Coil spring tightening device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012200822040U CN202558395U (en) | 2012-03-07 | 2012-03-07 | Coil spring tightening device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202558395U true CN202558395U (en) | 2012-11-28 |
Family
ID=47208079
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012200822040U Expired - Fee Related CN202558395U (en) | 2012-03-07 | 2012-03-07 | Coil spring tightening device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202558395U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103811457A (en) * | 2014-02-18 | 2014-05-21 | 江阴苏阳电子股份有限公司 | Multi-chip SOP (Small Out-Line Package) structure |
-
2012
- 2012-03-07 CN CN2012200822040U patent/CN202558395U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103811457A (en) * | 2014-02-18 | 2014-05-21 | 江阴苏阳电子股份有限公司 | Multi-chip SOP (Small Out-Line Package) structure |
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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 |
Granted publication date: 20121128 Termination date: 20140307 |