CN204558317U - A kind of three position key switches - Google Patents
A kind of three position key switches Download PDFInfo
- Publication number
- CN204558317U CN204558317U CN201520243509.9U CN201520243509U CN204558317U CN 204558317 U CN204558317 U CN 204558317U CN 201520243509 U CN201520243509 U CN 201520243509U CN 204558317 U CN204558317 U CN 204558317U
- Authority
- CN
- China
- Prior art keywords
- button
- pawl
- button pawl
- pedestal
- boss
- 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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- Push-Button Switches (AREA)
Abstract
The utility model provides a kind of three position key switches, comprises pedestal, button pawl, the circuit board of band key switch.Circuit board with key switch is arranged on pedestal, and button pawl is arranged on pedestal by button pawl axle, and by depresses button pawl, the function that different key switches realizes three position key switches pressed by the boss of the upper different length of button pawl.
Description
Technical field
The utility model belongs to appliance switch field, particularly relates to a kind of three position key switches.
Background technology
Existing key switching structure, mostly is two positions, or often opens, or normally closed, and the one-off of button can only realize a subfunction, do not realize the demand of user's diversification.
Utility model content
For solving the problems of the technologies described above, the utility model provides a kind of three position key switches, three definite actuating positions are provided by the resistance point of first, second, third button, form action form OFF-ON1-ON2, therefore in initial position equipment halted state, there is provided startup or the ready signal of equipment in definite centre position, what the 3rd position provided equipment starts or stops signal.
For achieving the above object, the utility model is realized by following technical scheme.
A kind of three position key switches, is characterized in that, comprise the circuit board of pedestal, button pawl, band key switch; Described pedestal bottom is provided with pedestal snap fit, and top is provided with base aperture; Described button pawl comprises pawl body, button pawl axle, button pawl axle is arranged on pawl portion after one's death, button pawl is connected with base runner through base aperture by button pawl axle, button pawl rotates around button pawl axle, button pawl bottom is also provided with button pawl elasticity boss and the short boss of button pawl, and the short boss of button pawl is longer than by button pawl elasticity boss; The circuit board of described key switch is provided with the first button, the second button, the 3rd button, is fixed on pedestal by pedestal snap fit; Three positions, place are had: for the moment, button pawl is not pressed, and the first button, the second button, the 3rd button are not all pressed in position during described three position key switch work; During position two, button pawl is pressed, and the first button is pressed by the button pawl elasticity boss on button pawl, and the short boss of button pawl on button pawl just in time touches the 3rd button; During position three, button pawl continues to press, and the button pawl elasticity boss on button pawl flicks, and button pawl pawl body presses the second button, and the 3rd button pressed by the short boss of button pawl.
Described button pawl front portion is provided with blade tooth, and button pawl has 2, and symmetry is arranged on pedestal, and the blade tooth of two button pawls is overlapping, and overlapping blade tooth staggers; Described first button has 2, respectively the button pawl elasticity boss of corresponding 2 button pawls; Described 3rd button has 2, respectively the short boss of button pawl of corresponding 2 button pawls; Described second button has 1, the pawl body of corresponding 2 button pawls.Arrange 5 buttons, the overall button area of switch increases, button balance of power and soft handle; By the circuit configuration on circuit board, make one of them first button and the 3rd button as button for subsequent use, even if also can continue when individual keys damages to use.
The space that button pawl elasticity boss flicks is provided with around further described button pawl elasticity boss, button pawl is by during to position three, button pawl elasticity boss is withstood by the first button that button pawl elasticity boss is pinned, button pawl stroke is inadequate, only have button pawl elasticity boss to upspring, button pawl can continue by position three.
Further described button pawl is provided with resetting means.When button pawl is by after completing to position three action, remove external force, button pawl is returned to position one by resetting means.
Further pedestal adopts flexible nylon material, is convenient to the loading of button pawl and snapping in of circuit board.
Further button pawl adopts POM material, larger, the wear-resisting physical life that can extend three position key switches of POM material hardness.
Beneficial effect: compared with prior art, the utility model has the advantage of: the function improving key switch; Facilitate the multiple demand of user to key switch, it is clear to identify, prevents misoperation; Structure is simple, and rationally, cost is lower; Pressing soft handle.
Accompanying drawing explanation
Fig. 1 is isometric exploded view of the present utility model;
Fig. 2 is position of the present utility model schematic diagram for the moment;
Schematic diagram when Fig. 3 is position two of the present utility model;
Schematic diagram when Fig. 4 is position three of the present utility model;
1. pedestals in figure, 2. button pawl, be 3. with the circuit board of key switch, 4. pedestal snap fit,
5. base aperture, 6. the first button, 7. the second button, 8. the 3rd button, 9. button pawl elasticity boss,
10. the short boss of button pawl, 11. button pawl axles.
Embodiment
Below in conjunction with accompanying drawing, the utility model is described in further detail.
Embodiment 1
As shown in Figure 1, a kind of three position key switches, comprise the circuit board 3 of pedestal 1, button pawl 2, band key switch, pedestal 1 adopts flexible nylon material, and pedestal 1 bottom is provided with pedestal snap fit 4, and top is provided with base aperture 5; Button pawl 2 adopts POM material, button pawl 2 is provided with button pawl axle 11, button pawl 2 is flexibly connected with pedestal 1 through base aperture 5 by button pawl axle 11, button pawl 2 rotates around button pawl axle 11, button pawl 2 is also provided with button pawl elasticity boss 9 and the short boss 10 of button pawl, and the short boss 10 of button pawl is longer than by button pawl elasticity boss 9; Circuit board 3 with key switch is provided with 5 buttons, and pedestal 1 put into by the circuit board 3 of band key switch, blocked the circuit board 3 of band key switch, filled in base aperture 5 by two button pawl axles 11 by pedestal snap fit 4.
Position one is as shown in Figure 2: during for non-depresses button pawl 2, button pawl elasticity boss 9 withstands on the first button 6, and all buttons are not all pressed;
Position two is as shown in Figure 3: be that first the first button 6 is pressed by button pawl elasticity boss 9, button pawl 2 and the short boss 10 of button pawl are supported by the second button 7 and the 3rd button 8 respectively;
Position three is as shown in Figure 4: be that the second button 7 and the 3rd button 8 are pressed by button pawl 2 and the short boss 10 of button pawl, button pawl elasticity boss 9 is withstood distortion by the first button 6 pressed and upsprings.
When removing external force, button pawl is returned to position one by back-moving spring.
The utility model is illustrated according to above-described embodiment, should be appreciated that above-described embodiment does not limit the utility model in any form, and all employings are equal to replacement or the technical scheme that obtains of equivalent transformation mode, all drop within protection range of the present utility model.
Claims (6)
1. three position key switches, is characterized in that, comprise the circuit board of pedestal, button pawl, band key switch; Described pedestal bottom is provided with pedestal snap fit, and top is provided with base aperture; Described button pawl comprises pawl body, button pawl axle, button pawl axle is arranged on pawl portion after one's death, button pawl is connected with base runner through base aperture by button pawl axle, button pawl rotates around button pawl axle, button pawl bottom is also provided with button pawl elasticity boss and the short boss of button pawl, and the short boss of button pawl is longer than by button pawl elasticity boss; The circuit board of described key switch is provided with the first button, the second button, the 3rd button, is fixed on pedestal by pedestal snap fit; Three positions, place are had: for the moment, button pawl is not pressed, and the first button, the second button, the 3rd button are not all pressed in position during described three position key switch work; During position two, button pawl is pressed, and the first button is pressed by the button pawl elasticity boss on button pawl, and the short boss of button pawl on button pawl just in time touches the 3rd button; During position three, button pawl continues to press, and the button pawl elasticity boss on button pawl flicks, and button pawl pawl body presses the second button, and the 3rd button pressed by the short boss of button pawl.
2. a kind of three position key switches according to claim 1, is characterized in that, described button pawl front portion is provided with blade tooth, and button pawl has 2, and symmetry is arranged on pedestal, and the blade tooth of two button pawls is overlapping, and overlapping blade tooth staggers; Described first button has 2, respectively the button pawl elasticity boss of corresponding 2 button pawls; Described 3rd button has 2, respectively the short boss of button pawl of corresponding 2 button pawls; Described second button has 1, the pawl body of corresponding 2 button pawls.
3. a kind of three position key switches according to claim 1, is characterized in that, are provided with the space that button pawl elasticity boss flicks around described button pawl elasticity boss.
4. a kind of three position key switches according to claim 1, it is characterized in that, described button pawl is provided with resetting means.
5. a kind of three position key switches according to claim 1, it is characterized in that, described pedestal is stretchy nylon pedestal.
6. a kind of three position key switches according to claim 1, is characterized in that, described button pawl is POM button pawl.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520243509.9U CN204558317U (en) | 2015-04-21 | 2015-04-21 | A kind of three position key switches |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520243509.9U CN204558317U (en) | 2015-04-21 | 2015-04-21 | A kind of three position key switches |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204558317U true CN204558317U (en) | 2015-08-12 |
Family
ID=53833400
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520243509.9U Expired - Fee Related CN204558317U (en) | 2015-04-21 | 2015-04-21 | A kind of three position key switches |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204558317U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106298323A (en) * | 2016-08-26 | 2017-01-04 | 江门市江海区柏健电器制造有限公司 | A kind of circular key switch housing |
-
2015
- 2015-04-21 CN CN201520243509.9U patent/CN204558317U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106298323A (en) * | 2016-08-26 | 2017-01-04 | 江门市江海区柏健电器制造有限公司 | A kind of circular key switch housing |
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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: 20200421 |