CN212725089U - Mute key structure - Google Patents
Mute key structure Download PDFInfo
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- CN212725089U CN212725089U CN202021889194.2U CN202021889194U CN212725089U CN 212725089 U CN212725089 U CN 212725089U CN 202021889194 U CN202021889194 U CN 202021889194U CN 212725089 U CN212725089 U CN 212725089U
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- key
- soft rubber
- linkage frame
- flexible glue
- key shaft
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Abstract
The utility model discloses a mute key structure, the key is used for cooperating with the electrical element to output the switching signal, the key comprises a key seat arranged on the PCB board and a key cover fixed on the key seat, a key shaft and an elastic reset piece for resetting the key shaft are arranged in the key seat, the side part of the key shaft is provided with a linkage frame, and a soft rubber cylinder is arranged in the linkage frame; when the key shaft is pressed downwards, the linkage frame drives the soft rubber cylinder to downwards trigger the electric element to output a switch signal, and when the key shaft is loosened, the soft rubber cylinder is upwards returned by the elastic resetting piece along with the key shaft. The utility model adopts an ingenious flexible glue cylinder structure, which can realize good pressing touch feeling and simultaneously realize silent pressing; the flexible glue cylinder is spacing with the key seat when descending, is equipped with installation guide block and the lug that resets on the flexible glue cylinder, makes the structure more nimble, simple manufacture, low in production cost, and the yields is high, is fit for using widely.
Description
Technical Field
The utility model relates to a button device, concretely relates to silence button structure.
Background
A keyboard is a command and data input device used to operate equipment and also refers to a set of function keys (e.g., typewriter, computer keyboard) arranged to operate a machine or equipment through a system. The keypad keys are generally classified into a hall sensing type and a photoelectric switching type, in which the photoelectric switching type keypad keys utilize a photoelectric coupling technology, an optical path is formed by a transmitting element and a receiving element by using an optical principle and a photoelectric coupling technology, and a circuit switch is implemented by a light blocking member for performing the cutting off and the conduction of the optical path to change the circuit impedance.
The switch shaft structure of the key can strike the key seat to make a sound when blocking the light path, and aiming at the defect, the switch shaft structure needs to be improved, so that the mute operation is realized.
SUMMERY OF THE UTILITY MODEL
To the above problem, the utility model aims at providing a structural design ingenious silence button structure.
In order to realize the technical purpose, the utility model discloses a scheme is: a mute key structure is characterized in that a key is used for being matched with an electrical element to output a switching signal, the key comprises a key seat arranged on a PCB board and a key cover fixed on the key seat, a key shaft and an elastic reset piece for resetting the key shaft are arranged in the key seat, a linkage frame is arranged on the side part of the key shaft, and a soft rubber cylinder is arranged in the linkage frame; when the key shaft is pressed downwards, the linkage frame drives the soft rubber cylinder to downwards trigger the electric element to output a switch signal, and when the key shaft is loosened, the soft rubber cylinder is upwards returned by the elastic resetting piece along with the key shaft.
Preferably, a side mounting hole is formed in the side of the linkage frame; the side edge of the soft rubber column body is provided with an installation guide block which is embedded in an installation side hole at the side part of the linkage frame; the flexible glue cylinder is in static connection with the linkage frame when no external force acts on the flexible glue cylinder, and the flexible glue cylinder can slide up and down relative to the linkage frame under the action of the external force.
Preferably, one side of the soft rubber cylinder body is further provided with a limiting block, the bottom of the key base is provided with a limiting step corresponding to the limiting block, and when the soft rubber cylinder body moves downwards, the limiting block is matched with the limiting step to limit the downward movement of the soft rubber cylinder body.
Preferably, the top of the linkage frame is provided with an installation top hole, the top of the soft rubber cylinder is provided with a reset lug, and the reset lug can extend out of the top of the linkage frame through the installation top hole; when the soft rubber cylinder moves downwards for limiting, the reset lug of the soft rubber cylinder slides upwards relative to the linkage frame by continuously pressing the key shaft; when the key shaft is loosened, the soft rubber column body moves upwards and returns along with the key shaft by the elastic reset piece, and the reset lug is jacked by the key cover to further slide downwards relative to the linkage frame for resetting.
Preferably, the electrical element is a light-coupled tube which is attached to the PCB, and the bottom of the soft rubber cylinder is designed to be a light blocking structure for blocking the conduction of a light path.
Preferably, the electric element is a hall sensor, and a magnetic part is arranged at the bottom of the soft rubber cylinder.
The utility model has the advantages that: the utility model adopts an ingenious flexible glue cylinder structure, which can realize good pressing touch feeling and simultaneously realize silent pressing; the flexible glue cylinder is spacing with the key seat when descending, is equipped with installation guide block and the lug that resets on the flexible glue cylinder, makes the structure more nimble, simple manufacture, low in production cost, and the yields is high, is fit for using widely.
Drawings
FIG. 1 is an exploded view of the present invention;
FIG. 2 is a schematic structural view of the present invention;
FIG. 3 is a schematic structural diagram of the key pad of the present invention;
fig. 4 is a schematic structural diagram of the soft rubber column body.
Wherein: 1, a PCB board; 2. a key base; 3. a key shaft; 4. an elastic reset member; 5. a linkage frame; 501. installing a side hole; 502. installing a top hole; 6. a soft glue column body; 601. installing a guide block; 602. a limiting block; 603. resetting the bump; 604. a light blocking structure; 7. a key cover; 8. light is coupled to the tube.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings and specific embodiments.
As shown in fig. 1-4, the specific embodiment of the present invention is a silent key structure, the key is used to cooperate with an electrical component to output a switching signal, the key includes a key seat 2 mounted on a PCB1 board and a key cover 7 fixed on the key seat, a key shaft 3 and an elastic reset piece 4 for resetting the key shaft are disposed in the key seat 2, a linkage frame 5 is disposed at a side portion of the key shaft 3, and a flexible glue cylinder 6 is mounted in the linkage frame 5, the present application is improved in that the flexible glue cylinder is used as a driving piece, which can prevent the key shaft from making a sound when the key shaft strikes the key seat or the PCB board, and simultaneously, the service life of the key is effectively prolonged, and the flexible glue cylinder 6 of the present application is preferably a silica gel structure; when the key shaft 3 is pressed to move downwards, the linkage frame 5 drives the soft rubber column body 6 to downwards trigger the electrical element to output a switch signal, and when the key shaft 3 is loosened, the soft rubber column body 6 moves upwards and returns along with the key shaft 3 by the elastic resetting piece 4.
Specifically, a side mounting hole 501 is formed in the side of the linkage frame 5; an installation guide block 601 is arranged on the side edge of the soft rubber column 6, and the installation guide block 601 is embedded in an installation side hole 501 on the side part of the linkage frame 5; the installation guide block 601 moves up and down in the installation side hole 501, the soft rubber cylinder 6 is relative when no external force acts on the linkage frame 5 and is in static connection, and the soft rubber cylinder 6 can slide up and down relative to the linkage frame 5 under the external force action.
In order to prevent the soft rubber cylinder from impacting the PCB, one side of the soft rubber cylinder 6 is further provided with a limiting block 602, the bottom of the key base 2 is provided with a limiting step 201 corresponding to the limiting block 602, and when the soft rubber cylinder 6 moves downwards, the limiting block 602 is matched with the limiting step 201 to limit the downward movement of the soft rubber cylinder 6. The limiting block 602 is also of a soft rubber structure, so that the limiting block 602 can not make a sound when impacting the limiting step 201 in a downward direction.
In order to improve the sensitivity of the key, the linkage frame is matched with the flexible glue cylinder, the top of the linkage frame 5 is provided with an installation top hole 502, the top of the flexible glue cylinder 6 is provided with a reset lug 603, and the reset lug 603 can extend out of the top of the linkage frame 5 through the installation top hole 502; when the soft rubber column 6 is limited downwards, the reset lug of the soft rubber column slides upwards relative to the linkage frame 5 when the key shaft 3 is continuously pressed; when the key shaft 3 is loosened, the soft rubber column body 6 moves upwards and returns along with the key shaft 3 by the elastic reset piece 4, and the reset bump 603 is jacked by the key cover 7 and then slides downwards to reset relative to the linkage frame. The reset bump 603 is used for resetting downwards under the propping of the key cover 7 when the key shaft is reset, so that the soft rubber column 6 keeps the initial position.
In order to obtain the trigger signal conveniently, the electrical element is a light-coupled tube 8 attached to the PCB1, and the bottom of the soft rubber cylinder 6 is designed as a light blocking structure 604 for blocking the conduction of the light path. The pair tube consists of a light-emitting element and a photosensitive element, an effective light signal emitted by the light-emitting element can be received by the photosensitive element, and the light path is unobstructed; the switching signal can be formed by switching the optical path. The light emitting element can be a light emitting diode or a laser diode, and the photosensitive element can be a photosensitive diode or a phototriode. The electric element is a Hall sensor, and a magnetic part is arranged in the bottom of the soft rubber cylinder 6.
The utility model adopts an ingenious flexible glue cylinder structure, which can realize good pressing touch feeling and simultaneously realize silent pressing; the flexible glue cylinder is spacing with the key seat when descending, is equipped with installation guide block and the lug that resets on the flexible glue cylinder, makes the structure more nimble, simple manufacture, low in production cost, and the yields is high, is fit for using widely.
The above, only do the preferred embodiment of the present invention, not used to limit the present invention, all the technical matters of the present invention should be included in the protection scope of the present invention for any slight modification, equivalent replacement and improvement of the above embodiments.
Claims (6)
1. The utility model provides a silence button structure, the button is used for cooperating electrical element output switch signal, and the button is including installing the key seat on the PCB board and being fixed in the key lid on the key seat, be equipped with a key shaft in the key seat and supply the elasticity that the key shaft resets its characterized in that: a linkage frame is arranged on the side part of the key shaft, and a soft rubber column body is arranged in the linkage frame; when the key shaft is pressed downwards, the linkage frame drives the soft rubber cylinder to downwards trigger the electric element to output a switch signal, and when the key shaft is loosened, the soft rubber cylinder is upwards returned by the elastic resetting piece along with the key shaft.
2. The mute key structure of claim 1, wherein: a mounting side hole is formed in the side part of the linkage frame; the side edge of the soft rubber column body is provided with an installation guide block which is embedded in an installation side hole at the side part of the linkage frame; the flexible glue cylinder is in static connection with the linkage frame when no external force acts on the flexible glue cylinder, and the flexible glue cylinder can slide up and down relative to the linkage frame under the action of the external force.
3. The mute key structure according to claim 2, wherein: the flexible glue cylinder body is characterized in that a limiting block is further arranged on one side of the flexible glue cylinder body, a limiting step is arranged at the bottom of the key base corresponding to the limiting block, and when the flexible glue cylinder body moves downwards, the limiting block is matched with the limiting step to limit the downward movement of the flexible glue cylinder body.
4. A mute key structure as claimed in claim 3, wherein: the top of the linkage frame is provided with an installation top hole, the top of the soft rubber cylinder is provided with a reset lug, and the reset lug can extend out of the top of the linkage frame through the installation top hole; when the soft rubber cylinder moves downwards for limiting, the reset lug of the soft rubber cylinder slides upwards relative to the linkage frame by continuously pressing the key shaft; when the key shaft is loosened, the soft rubber column body moves upwards and returns along with the key shaft by the elastic reset piece, and the reset lug is jacked by the key cover to further slide downwards relative to the linkage frame for resetting.
5. The mute key structure according to any one of claims 1 to 4, wherein: the electric element is a light-coupled tube pasted on the PCB, and the bottom of the soft rubber cylinder is designed into a light blocking structure for blocking the conduction of a light path.
6. A mute key structure according to any one of claims 1 to 3, wherein: the electric element is a Hall sensor, and a magnetic part is arranged at the bottom of the soft rubber cylinder.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021889194.2U CN212725089U (en) | 2020-09-02 | 2020-09-02 | Mute key structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021889194.2U CN212725089U (en) | 2020-09-02 | 2020-09-02 | Mute key structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212725089U true CN212725089U (en) | 2021-03-16 |
Family
ID=74925372
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202021889194.2U Active CN212725089U (en) | 2020-09-02 | 2020-09-02 | Mute key structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN212725089U (en) |
-
2020
- 2020-09-02 CN CN202021889194.2U patent/CN212725089U/en active Active
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