CN202331259U - Knob with uneasily-dropped potentiometer - Google Patents
Knob with uneasily-dropped potentiometer Download PDFInfo
- Publication number
- CN202331259U CN202331259U CN 201120495526 CN201120495526U CN202331259U CN 202331259 U CN202331259 U CN 202331259U CN 201120495526 CN201120495526 CN 201120495526 CN 201120495526 U CN201120495526 U CN 201120495526U CN 202331259 U CN202331259 U CN 202331259U
- Authority
- CN
- China
- Prior art keywords
- mounting hole
- potentiometer
- knob
- swing handle
- rotary stopper
- 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 relates to a knob with an uneasily-dropped potentiometer. The knob with the uneasily-dropped potentiometer, provided by the utility model, comprises a knob body and the potentiometer, wherein the potentiometer comprises a rotary handle; the rotary handle is provided with a rotary limiting plane and a step part which are distributed along an axial direction; the knob body is provided with a hollow mounting column and the hollow mounting column is provided with a mounting hole; the rotary handle is arranged in the mounting hole; and at least one part of the outer circumference of the step part of the rotary handle is arranged in the mounting hole and is contacted with the inner circumference of the mounting hole. The knob with the uneasily-dropped potentiometer disclosed by the utility model has the beneficial effects that when the rotary handle is completely mounted in the mounting hole, a closed space is formed by the mounting hole and the potentiometer is not easy to drop under the effect of atmospheric pressure; and integral hole and shaft matching is formed by the mounting hole and the step part of the rotary handle, so that the coaxiality of the rotary handle and the mounting hole can be better ensured.
Description
Technical field
The utility model relates to knob, relates in particular to the knob of a kind of potentiometer difficult drop-off in the knob.
Background technology
Potentiometer is to have the resistive element that three exits, resistance can be regulated by certain Changing Pattern.Potentiometer usually by resistive element and movably brush form.When brush when resistive element moves, promptly obtain to become the resistance value or the voltage of certain relation with displacement at output terminal.Therefore; Potentiometer is normally controlled through knob; At present; The fit that knob and potentiometer are commonly used has the direct assembled of swing handle, knob open column open flume type and the knob open column fluting of knob open column and potentiometer to add the elastic ring formula, and these assembly structures all exist build-up tolerance to be difficult for guaranteeing, occurs easily that the cooperation of knob and potentiometer is too tight or too loose, the situation of disalignment (off-centre) or cost increase.In the assembly relation of knob and potentiometer, desirable effect is that the requirement potentiometer is packed into easily, but pack into the back difficult drop-off, more than these assembly structures all be difficult to satisfy this requirement, especially be difficult to satisfy the potentiometer difficult drop-off.
Summary of the invention
In order to solve the problems of the prior art, the utility model provides a kind of knob of potentiometer difficult drop-off.
The utility model provides a kind of knob of potentiometer difficult drop-off; Comprise knob body and potentiometer, said potentiometer comprises swing handle, and said swing handle is provided with rotary stopper plane and the stage portion that distributes vertically; Said knob body is provided with hollow erection column; Said hollow erection column is provided with mounting hole, and said swing handle is arranged in the said mounting hole, and local at least being arranged in the said mounting hole and with the inner peripheral surface of said mounting hole of the outer circumference surface of the stage portion of said swing handle contacts.
As the further improvement of the utility model, be provided with in the said mounting hole and the corresponding rotary stopper piece in said rotary stopper plane, the top of said rotary stopper piece connects with the stage portion of said swing handle and contacts.
As the further improvement of the utility model, the plane, top of said mounting hole and the minor increment of said rotary stopper piece are greater than zero.
As the further improvement of the utility model, the plane, top of said mounting hole and the minor increment of said rotary stopper piece are more than or equal to 1/3rd of the axial width of the stage portion of said swing handle.
As the further improvement of the utility model, the plane, top of said mounting hole and the minor increment of said rotary stopper piece are half the more than or equal to the axial width of the stage portion of said swing handle.
As the further improvement of the utility model, the plane, top of said mounting hole and the minor increment of said rotary stopper piece are more than or equal to the axial width of the stage portion of said swing handle.
As the further improvement of the utility model, the plane, top of said mounting hole and the minor increment of said rotary stopper piece are greater than 2 millimeters.
As the further improvement of the utility model, the plane, top of said mounting hole and the minor increment of said rotary stopper piece equal 4.5 millimeters.
As the further improvement of the utility model, the outer circumference surface of the stage portion of said swing handle is arranged on fully in the said mounting hole and with the inner peripheral surface of said mounting hole and contacts.
As the further improvement of the utility model, said swing handle and said mounting hole are transition fit or interference fit.
The beneficial effect of the utility model is: through such scheme, contact because the part at least of the outer circumference surface of the stage portion of swing handle is arranged in the said mounting hole and with the inner peripheral surface of said mounting hole, therefore; After swing handle is installed in the mounting hole fully; Mounting hole just forms an enclosure space, at this moment, and under the effect of atmospheric pressure; Potentiometer is with regard to difficult drop-off; And mounting hole has formed complete hole axle with the stage portion of swing handle and has cooperated, and can guarantee the right alignment of swing handle and mounting hole preferably.
Description of drawings
Fig. 1 is the decomposition texture synoptic diagram of the knob of a kind of potentiometer difficult drop-off of the utility model;
Fig. 2 is the structural representation of the knob of the said potentiometer difficult drop-off of the utility model;
Fig. 3 is the front view of the knob of the said potentiometer difficult drop-off of the utility model;
Fig. 4 is that Fig. 3 is cut-open view B-B;
Fig. 5 is the knob main body structure synoptic diagram of the knob of the said potentiometer difficult drop-off of the utility model;
Fig. 6 is the front view of knob body of the knob of the said potentiometer difficult drop-off of the utility model;
Fig. 7 is the cut-open view A-A of Fig. 6;
Fig. 8 is the structural representation of potentiometer of the knob of the said potentiometer difficult drop-off of the utility model.
Embodiment
Below in conjunction with description of drawings and embodiment the utility model is further specified.
Drawing reference numeral among Fig. 1 to Fig. 8 is: knob body 1; Hollow erection column 11; Rotary stopper piece 12; Potentiometer 2; Rotary stopper plane 21; Stage portion 22; Swing handle 23.
Extremely shown in Figure 8 like Fig. 1; A kind of knob of potentiometer difficult drop-off; Comprise knob body 1 and potentiometer 2, said potentiometer 2 comprises swing handle 23, and said swing handle 23 is provided with the rotary stopper plane 21 and stage portion 22 that distributes vertically; Said knob body 1 is provided with hollow erection column 11; Said hollow erection column 11 is provided with mounting hole, and said swing handle 23 is arranged in the said mounting hole, and local at least being arranged in the said mounting hole and with the inner peripheral surface of said mounting hole of the outer circumference surface of the stage portion 22 of said swing handle 23 contacts.
Extremely shown in Figure 8 like Fig. 1; Be provided with axially extended rotary stopper piece 12 in the said mounting hole with the said mounting hole 11 in 21 corresponding edges, said rotary stopper plane; The top of said rotary stopper piece 12 is a plane, and the top of said rotary stopper piece 12 connects with the stage portion 22 of said swing handle 23 and contacts.
To shown in Figure 8, the plane, top of said mounting hole and the minor increment of said rotary stopper piece 12 are greater than zero like Fig. 1, and the utility model is preferably 1 to 2 millimeter.
To shown in Figure 8, the plane, top of said mounting hole and the minor increment of said rotary stopper piece 12 are more than or equal to 1/3rd of the axial width of the stage portion 33 of said swing handle 23 like Fig. 1.
To shown in Figure 8, the plane, top of said mounting hole and the minor increment of said rotary stopper piece 12 are more than or equal to half of the axial width of the stage portion 22 of said swing handle 23 like Fig. 1.
To shown in Figure 8, the plane, top of said mounting hole and the minor increment of said rotary stopper piece 12 are more than or equal to the axial width of the stage portion 22 of said swing handle 23 like Fig. 1.
To shown in Figure 8, the plane, top of said mounting hole and the minor increment of said rotary stopper piece 12 are greater than 2 millimeters like Fig. 1.
To shown in Figure 8, the plane, top of said mounting hole and the minor increment of said rotary stopper piece 12 equal 4.5 millimeters like Fig. 1.
To shown in Figure 8, the outer circumference surface of the stage portion 22 of said swing handle 23 is arranged on fully in the said mounting hole and with the inner peripheral surface of said mounting hole and contacts like Fig. 1.
To shown in Figure 8, said swing handle 23 is transition fit or interference fit with said mounting hole like Fig. 1, and the utility model is preferably the interference fit of 0-0.05 millimeter.
The knob of a kind of potentiometer difficult drop-off that the utility model provides; Because local at least being arranged in the said mounting hole and with the inner peripheral surface of said mounting hole of the outer circumference surface of the stage portion 22 of swing handle 23 contacts, therefore, after swing handle 23 is installed in the mounting hole fully; Mounting hole just forms an enclosure space; At this moment, under the effect of atmospheric pressure, potentiometer 2 is with regard to difficult drop-off; During installation, because the mounting hole inwall has certain roughness, when just beginning to get into; Air still can be discharged by small space, therefore is easy to insert install, after getting into fully to swing handle 23; The surperficial small injustice of mounting hole be fitted in fully on the swing handle 23, so swing handle 23 is not drawn out easily by swing handle 23 crimps; And mounting hole has formed complete hole axle with the stage portion 22 of swing handle 23 and has cooperated, and can guarantee the right alignment of swing handle 23 and mounting hole preferably.
Above content is the further explain that combines concrete preferred implementation that the utility model is done, and can not assert that the practical implementation of the utility model is confined to these explanations.For the those of ordinary skill of technical field under the utility model, under the prerequisite that does not break away from the utility model design, can also make some simple deduction or replace, all should be regarded as belonging to the protection domain of the utility model.
Claims (10)
1. the knob of a potentiometer difficult drop-off; It is characterized in that: comprise knob body (1) and potentiometer (2); Said potentiometer (2) comprises swing handle (23); Said swing handle (23) is provided with rotary stopper plane (21) and the stage portion (22) that distributes vertically, and said knob body (1) is provided with hollow erection column (11), and said hollow erection column (11) is provided with mounting hole; Said swing handle (23) is arranged in the said mounting hole, and local at least being arranged in the said mounting hole and with the inner peripheral surface of said mounting hole of the outer circumference surface of the stage portion (22) of said swing handle (23) contacts.
2. according to the knob of the said potentiometer difficult drop-off of claim 1; It is characterized in that: be provided with in the said mounting hole and the corresponding rotary stopper piece in said rotary stopper plane (21) (12), the top of said rotary stopper piece (12) connects with the stage portion (22) of said swing handle (23) and contacts.
3. according to the knob of the said potentiometer difficult drop-off of claim 2, it is characterized in that: the minor increment of the plane, top of said mounting hole and said rotary stopper piece (12) is greater than zero.
4. according to the knob of the said potentiometer difficult drop-off of claim 3, it is characterized in that: the minor increment of the plane, top of said mounting hole and said rotary stopper piece (12) is more than or equal to 1/3rd of the axial width of the stage portion (22) of said swing handle (23).
5. according to the knob of the said potentiometer difficult drop-off of claim 4, it is characterized in that: the minor increment of the plane, top of said mounting hole and said rotary stopper piece (12) is half the more than or equal to the axial width of the stage portion (22) of said swing handle (23).
6. according to the knob of the said potentiometer difficult drop-off of claim 5, it is characterized in that: the minor increment of the plane, top of said mounting hole and said rotary stopper piece (12) is more than or equal to the axial width of the stage portion (22) of said swing handle (23).
7. according to the knob of the said potentiometer difficult drop-off of claim 2, it is characterized in that: the minor increment of the plane, top of said mounting hole and said rotary stopper piece (12) is greater than 2 millimeters.
8. according to the knob of the said potentiometer difficult drop-off of claim 7, it is characterized in that: the minor increment of the plane, top of said mounting hole and said rotary stopper piece (12) equals 4.5 millimeters.
9. according to the knob of the said potentiometer difficult drop-off of claim 1, it is characterized in that: the outer circumference surface of the stage portion (22) of said swing handle (23) is arranged on fully in the said mounting hole and with the inner peripheral surface of said mounting hole and contacts.
10. according to the knob of the said potentiometer difficult drop-off of claim 1, it is characterized in that: said swing handle (23) is transition fit or interference fit with said mounting hole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201120495526 CN202331259U (en) | 2011-12-02 | 2011-12-02 | Knob with uneasily-dropped potentiometer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201120495526 CN202331259U (en) | 2011-12-02 | 2011-12-02 | Knob with uneasily-dropped potentiometer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202331259U true CN202331259U (en) | 2012-07-11 |
Family
ID=46443233
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201120495526 Expired - Fee Related CN202331259U (en) | 2011-12-02 | 2011-12-02 | Knob with uneasily-dropped potentiometer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202331259U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103331549A (en) * | 2013-07-05 | 2013-10-02 | 深圳市航盛电子股份有限公司 | Clamp improving rotary knob installation coaxiality and assembling method using same |
| CN111414042A (en) * | 2020-03-03 | 2020-07-14 | 广东美的厨房电器制造有限公司 | Knob assembly and electric appliance |
-
2011
- 2011-12-02 CN CN 201120495526 patent/CN202331259U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103331549A (en) * | 2013-07-05 | 2013-10-02 | 深圳市航盛电子股份有限公司 | Clamp improving rotary knob installation coaxiality and assembling method using same |
| CN111414042A (en) * | 2020-03-03 | 2020-07-14 | 广东美的厨房电器制造有限公司 | Knob assembly and electric appliance |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| EE01 | Entry into force of recordation of patent licensing contract |
Assignee: Shenzhen Southern Airlines Electronic Polytron Technologies Inc Assignor: Hangsheng Electronic Co., Ltd., Shenzhen City Contract record no.: 2013440000328 Denomination of utility model: Knob with uneasily-dropped potentiometer Granted publication date: 20120711 License type: Exclusive License Record date: 20130628 |
|
| LICC | Enforcement, change and cancellation of record of contracts on the licence for exploitation of a patent or utility model | ||
| C56 | Change in the name or address of the patentee | ||
| CP02 | Change in the address of a patent holder |
Address after: 518000 Guangdong city of Shenzhen province Baoan District Fuyong street in a peaceful Road Industrial Park Commission Fuyuan Hangsheng Patentee after: Hangsheng Electronic Co., Ltd., Shenzhen City Address before: 518000 Guangdong city of Zhuhai province Baoan District Fuyong street in a peaceful Road Industrial Park Commission Fuyuan Hangsheng Patentee before: Hangsheng Electronic Co., Ltd., Shenzhen City |
|
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20120711 Termination date: 20151202 |
|
| EXPY | Termination of patent right or utility model |