CN2070927U - Knob for rotating shaft and handle parts - Google Patents
Knob for rotating shaft and handle parts Download PDFInfo
- Publication number
- CN2070927U CN2070927U CN 90207425 CN90207425U CN2070927U CN 2070927 U CN2070927 U CN 2070927U CN 90207425 CN90207425 CN 90207425 CN 90207425 U CN90207425 U CN 90207425U CN 2070927 U CN2070927 U CN 2070927U
- Authority
- CN
- China
- Prior art keywords
- knob
- footstalk
- utility
- radius
- model
- 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.)
- Withdrawn
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Abstract
The utility model relates to an improved knob for rotating shaft and handle parts, comprising an opening type turn knob body and a spring ring, characterized in that the width of a superlingua is smaller than two times of the radius of an outer circle. A groove is arranged in the center of the inner wall of a lower semi-ring body. The binding force for combining the turn knob with the shaft and handle parts is strong. The utility model has the advantages of convenient assemblage and high reliability.
Description
The utility model relates to a kind of rotation footstalk device knob.
Rotation footstalk device is at radio and television.Have a wide range of applications in the fields such as instrument, instrument, electrical equipment.As the fixed form of the knob and the device footstalk of its functional unit, but a difference branch screw fixation method, spring leaf fixed form, the turn fixed form of pressing knob structure.Adopt first kind of fixed form, knob and device footstalk are in conjunction with firm, but the knob cost is higher, and assembling is inconvenient.The two kinds of fixed forms in back are to adopt at most in present televisor, the radio cassette player, yet, be difficult for resilient material quality instability by what device footstalk and the control of knob tolerance on fit, band causes that knob damages in a large number in the assembling process, or complete machine in transit or knob took place between the operating period comes off.
The purpose of this utility model provides strong, easy to assembly, the service-strong knob of footstalk adhesion a kind of and rotation footstalk device.
The purpose of this utility model is to adopt the knob body structure of turn fixed form knob to realize by improving.Knob open-type knob body after the improvement and turn are formed, the opening of knob body is made up of last tongue and lower half circle ring body, the outer arc kind inner arc radius of last tongue is identical with interior radius of circle with second toric cylindrical, 2 times of little its exradius of what of the width of last tongue, big what in it radius of circle 1/2nd.The lower half circle inner wall of ring body axis of centres is to recessing.For the withdrawable type device, last tongue bottom have one with the corresponding flange of device footstalk location ring groove.
Now in conjunction with the accompanying drawings the utility model embodiment is described further.
Fig. 1 is the utility model knob and device footstalk assembling synoptic diagram.
Fig. 2 is one of knob body opening side view.
Fig. 3 is two of a knob body opening side view.
Fig. 4 is the utility model knob and withdrawable type rotation footstalk device footstalk assembling synoptic diagram.
Fig. 5 inserts stressing conditions synoptic diagram behind the device footstalk for knob.
The utility model knob is made up of open-type knob body (1) and turn (2), the opening of knob body (1) is made up of last tongue (3) and lower half circle ring body (4), the outer arc of last tongue (3) is identical with interior radius of circle with the cylindrical of lower half circle ring body (4) with the inner arc radius, 2 times of little its exradius of what of width of last tongue (3), big what radius of circle 1/2nd in it is generally big what or waits its interior radius of circle of what.
Another embodiment of the utility model knob is, except keeping above-mentioned last tongue structure feature, has groove (5) in the inwall central authorities of described lower half circle ring body (4), and groove is wide 3 millimeters, dark 0.3-0.5 millimeter.
The another embodiment of the utility model knob is, in order to increase the pull out force that takes off of knob, on above-mentioned the bottom of tongue (3) have one with the corresponding flange (7) of withdrawable type rotation footstalk device footstalk location ring groove (6).
The utility model knob is made of plastics.
Adopt the utility model knob, knob and device footstalk adhesion strengthen.Change the colulus of not enough semicircle by the last tongue (3) of what knob body (1) into by original semi-circular ring, improved the elastic deformation ability, thereby strengthened the adhesion of knob and device footstalk.Further change the structure of lower half circle ring body (4) on this basis.Wall central authorities recessing (5) has within it then improved the elastic deformation ability of semi-circular ring (4), has increased the contact point of the latter and device footstalk.From Fig. 5 stressing conditions synoptic diagram as seen, after knob inserted the device footstalk, the knob hole wall was subjected to turn pressure influence, became contact and combine closely at 3 with the device footstalk, force way is 2 contacts in the old structure knob, and the new construction knob has obvious superiority.Practice shows that the footstalk adhesion of the utility model knob and rotation footstalk device is strong, easy to assembly, uses reliably, and knob spoilage in assembling process reduces significantly.In addition, change a semi-circular ring by the opening of what knob into by two original semi-circular ring and add a colulus, reduced knob single piece of plastic consumption.
Claims (3)
1. one kind is rotated footstalk device knob, form by open-type knob body (1) and turn (2), the opening that it is characterized in that knob body (1) is made up of last tongue (3) and lower half circle ring body (4), the outer arc of last tongue (3) is identical with interior radius of circle with the cylindrical of lower half circle ring body (4) with the inner arc radius, 2 times of little its exradius of what of width of last tongue (3), big what radius of circle 1/2nd in it.
2. knob according to claim 1 is characterized in that the inwall central authorities of described lower half circle ring body (4) have groove (5).
3. knob according to claim 1 and 2 is characterized in that there are one and the corresponding flange (7) of withdrawable type rotation footstalk device footstalk location ring groove (6) in described bottom of going up tongue (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 90207425 CN2070927U (en) | 1990-07-12 | 1990-07-12 | Knob for rotating shaft and handle parts |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 90207425 CN2070927U (en) | 1990-07-12 | 1990-07-12 | Knob for rotating shaft and handle parts |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2070927U true CN2070927U (en) | 1991-02-06 |
Family
ID=4887858
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 90207425 Withdrawn CN2070927U (en) | 1990-07-12 | 1990-07-12 | Knob for rotating shaft and handle parts |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2070927U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101605569B (en) * | 2007-02-05 | 2012-09-05 | 诺沃-诺迪斯克有限公司 | Injection button |
-
1990
- 1990-07-12 CN CN 90207425 patent/CN2070927U/en not_active Withdrawn
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101605569B (en) * | 2007-02-05 | 2012-09-05 | 诺沃-诺迪斯克有限公司 | Injection button |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |